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NoFree argument attribute.

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Summary: Deducing nofree atrribute for function arguments.

Reviewers: jdoerfert

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D67886
This commit is contained in:
Stefan Stipanovic 2019-11-02 16:35:38 +01:00
parent a61555f25d
commit e0f934d786
22 changed files with 370 additions and 185 deletions
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4
docs/LangRef.rst
View File

@ -1133,6 +1133,10 @@ Currently, only the following parameter attributes are defined:
attribute for return values. Addresses used in volatile operations
are considered to be captured.
``nofree``
This indicates that callee does not free the pointer argument. This is not
a valid attribute for return values.
.. _nest:
``nest``

1
lib/AsmParser/LLParser.cpp
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@ -1636,6 +1636,7 @@ bool LLParser::ParseOptionalParamAttrs(AttrBuilder &B) {
case lltok::kw_nest: B.addAttribute(Attribute::Nest); break;
case lltok::kw_noalias: B.addAttribute(Attribute::NoAlias); break;
case lltok::kw_nocapture: B.addAttribute(Attribute::NoCapture); break;
case lltok::kw_nofree: B.addAttribute(Attribute::NoFree); break;
case lltok::kw_nonnull: B.addAttribute(Attribute::NonNull); break;
case lltok::kw_readnone: B.addAttribute(Attribute::ReadNone); break;
case lltok::kw_readonly: B.addAttribute(Attribute::ReadOnly); break;

6
lib/IR/Verifier.cpp
View File

@ -1506,7 +1506,6 @@ static bool isFuncOnlyAttr(Attribute::AttrKind Kind) {
case Attribute::NoCfCheck:
case Attribute::NoUnwind:
case Attribute::NoInline:
case Attribute::NoFree:
case Attribute::AlwaysInline:
case Attribute::OptimizeForSize:
case Attribute::StackProtect:
@ -1555,7 +1554,7 @@ static bool isFuncOnlyAttr(Attribute::AttrKind Kind) {
/// arguments.
static bool isFuncOrArgAttr(Attribute::AttrKind Kind) {
return Kind == Attribute::ReadOnly || Kind == Attribute::WriteOnly ||
Kind == Attribute::ReadNone;
Kind == Attribute::ReadNone || Kind == Attribute::NoFree;
}
void Verifier::verifyAttributeTypes(AttributeSet Attrs, bool IsFunction,
@ -1702,11 +1701,12 @@ void Verifier::verifyFunctionAttrs(FunctionType *FT, AttributeList Attrs,
!RetAttrs.hasAttribute(Attribute::Nest) &&
!RetAttrs.hasAttribute(Attribute::StructRet) &&
!RetAttrs.hasAttribute(Attribute::NoCapture) &&
!RetAttrs.hasAttribute(Attribute::NoFree) &&
!RetAttrs.hasAttribute(Attribute::Returned) &&
!RetAttrs.hasAttribute(Attribute::InAlloca) &&
!RetAttrs.hasAttribute(Attribute::SwiftSelf) &&
!RetAttrs.hasAttribute(Attribute::SwiftError)),
"Attributes 'byval', 'inalloca', 'nest', 'sret', 'nocapture', "
"Attributes 'byval', 'inalloca', 'nest', 'sret', 'nocapture', 'nofree'"
"'returned', 'swiftself', and 'swifterror' do not apply to return "
"values!",
V);

156
lib/Transforms/IPO/Attributor.cpp
View File

@ -584,7 +584,8 @@ struct AAComposeTwoGenericDeduction
/// See AbstractAttribute::updateImpl(...).
ChangeStatus updateImpl(Attributor &A) override {
ChangeStatus ChangedF = F<AAType, G<AAType, Base, StateType>, StateType>::updateImpl(A);
ChangeStatus ChangedF =
F<AAType, G<AAType, Base, StateType>, StateType>::updateImpl(A);
ChangeStatus ChangedG = G<AAType, Base, StateType>::updateImpl(A);
return ChangedF | ChangedG;
}
@ -1524,6 +1525,138 @@ struct AANoFreeCallSite final : AANoFreeImpl {
void trackStatistics() const override { STATS_DECLTRACK_CS_ATTR(nofree); }
};
/// NoFree attribute for floating values.
struct AANoFreeFloating : AANoFreeImpl {
AANoFreeFloating(const IRPosition &IRP) : AANoFreeImpl(IRP) {}
/// See AbstractAttribute::trackStatistics()
void trackStatistics() const override{STATS_DECLTRACK_FLOATING_ATTR(nofree)}
/// See Abstract Attribute::updateImpl(...).
ChangeStatus updateImpl(Attributor &A) override {
const IRPosition &IRP = getIRPosition();
Function *F = IRP.getAnchorScope();
const AAIsDead &LivenessAA =
A.getAAFor<AAIsDead>(*this, IRPosition::function(*F));
const auto &NoFreeAA =
A.getAAFor<AANoFree>(*this, IRPosition::function_scope(IRP));
if (NoFreeAA.isAssumedNoFree())
return ChangeStatus::UNCHANGED;
SmallPtrSet<const Use *, 8> Visited;
SmallVector<const Use *, 8> Worklist;
Value &AssociatedValue = getIRPosition().getAssociatedValue();
for (Use &U : AssociatedValue.uses())
Worklist.push_back(&U);
while (!Worklist.empty()) {
const Use *U = Worklist.pop_back_val();
if (!Visited.insert(U).second)
continue;
auto *UserI = U->getUser();
if (!UserI)
continue;
if (LivenessAA.isAssumedDead(cast<Instruction>(UserI)))
continue;
if (auto *CB = dyn_cast<CallBase>(UserI)) {
if (CB->isBundleOperand(U))
return indicatePessimisticFixpoint();
if (!CB->isArgOperand(U))
continue;
unsigned ArgNo = U - CB->arg_begin();
const auto &NoFreeArg = A.getAAFor<AANoFree>(
*this, IRPosition::callsite_argument(*CB, ArgNo));
if (NoFreeArg.isAssumedNoFree())
continue;
return indicatePessimisticFixpoint();
}
if (isa<GetElementPtrInst>(UserI) || isa<BitCastInst>(UserI) ||
isa<PHINode>(UserI) || isa<SelectInst>(UserI)) {
for (Use &U : UserI->uses())
Worklist.push_back(&U);
continue;
}
// Unknown user.
return indicatePessimisticFixpoint();
}
return ChangeStatus::UNCHANGED;
}
};
/// NoFree attribute for a call site argument.
struct AANoFreeArgument final : AANoFreeFloating {
AANoFreeArgument(const IRPosition &IRP) : AANoFreeFloating(IRP) {}
/// See AbstractAttribute::trackStatistics()
void trackStatistics() const override { STATS_DECLTRACK_ARG_ATTR(nofree) }
};
/// NoFree attribute for call site arguments.
struct AANoFreeCallSiteArgument final : AANoFreeFloating {
AANoFreeCallSiteArgument(const IRPosition &IRP) : AANoFreeFloating(IRP) {}
/// See AbstractAttribute::updateImpl(...).
ChangeStatus updateImpl(Attributor &A) override {
// TODO: Once we have call site specific value information we can provide
// call site specific liveness information and then it makes
// sense to specialize attributes for call sites arguments instead of
// redirecting requests to the callee argument.
Argument *Arg = getAssociatedArgument();
if (!Arg)
return indicatePessimisticFixpoint();
const IRPosition &ArgPos = IRPosition::argument(*Arg);
auto &ArgAA = A.getAAFor<AANoFree>(*this, ArgPos);
return clampStateAndIndicateChange(
getState(), static_cast<const AANoFree::StateType &>(ArgAA.getState()));
}
/// See AbstractAttribute::trackStatistics()
void trackStatistics() const override{STATS_DECLTRACK_CSARG_ATTR(nofree)};
};
/// NoFree attribute for function return value.
struct AANoFreeReturned final : AANoFreeFloating {
AANoFreeReturned(const IRPosition &IRP) : AANoFreeFloating(IRP) {
llvm_unreachable("NoFree is not applicable to function returns!");
}
/// See AbstractAttribute::initialize(...).
void initialize(Attributor &A) override {
llvm_unreachable("NoFree is not applicable to function returns!");
}
/// See AbstractAttribute::updateImpl(...).
ChangeStatus updateImpl(Attributor &A) override {
llvm_unreachable("NoFree is not applicable to function returns!");
}
/// See AbstractAttribute::trackStatistics()
void trackStatistics() const override {}
};
/// NoFree attribute deduction for a call site return value.
struct AANoFreeCallSiteReturned final : AANoFreeFloating {
AANoFreeCallSiteReturned(const IRPosition &IRP) : AANoFreeFloating(IRP) {}
ChangeStatus manifest(Attributor &A) override {
return ChangeStatus::UNCHANGED;
}
/// See AbstractAttribute::trackStatistics()
void trackStatistics() const override { STATS_DECLTRACK_CSRET_ATTR(nofree) }
};
/// ------------------------ NonNull Argument Attribute ------------------------
static int64_t getKnownNonNullAndDerefBytesForUse(
Attributor &A, AbstractAttribute &QueryingAA, Value &AssociatedValue,
@ -1646,7 +1779,8 @@ struct AANonNullFloating
return Change;
if (!NullIsDefined) {
const auto &DerefAA = A.getAAFor<AADereferenceable>(*this, getIRPosition());
const auto &DerefAA =
A.getAAFor<AADereferenceable>(*this, getIRPosition());
if (DerefAA.getAssumedDereferenceableBytes())
return Change;
}
@ -4244,7 +4378,6 @@ struct AAMemoryBehaviorArgument : AAMemoryBehaviorFloating {
return AAMemoryBehaviorFloating::manifest(A);
}
/// See AbstractAttribute::trackStatistics()
void trackStatistics() const override {
if (isAssumedReadNone())
@ -4654,8 +4787,7 @@ bool Attributor::checkForAllCallSites(
for (const Use &U : Fn.uses()) {
AbstractCallSite ACS(&U);
if (!ACS) {
LLVM_DEBUG(dbgs() << "[Attributor] Function "
<< Fn.getName()
LLVM_DEBUG(dbgs() << "[Attributor] Function " << Fn.getName()
<< " has non call site use " << *U.get() << " in "
<< *U.getUser() << "\n");
// BlockAddress users are allowed.
@ -4686,8 +4818,7 @@ bool Attributor::checkForAllCallSites(
if (!RequireAllCallSites)
continue;
LLVM_DEBUG(dbgs() << "[Attributor] User " << EffectiveUse->getUser()
<< " is an invalid use of "
<< Fn.getName() << "\n");
<< " is an invalid use of " << Fn.getName() << "\n");
return false;
}
@ -5006,7 +5137,8 @@ ChangeStatus Attributor::run(Module &M) {
<< " instead of " << *OldV << "\n");
U->set(NewV);
if (Instruction *I = dyn_cast<Instruction>(OldV))
if (!isa<PHINode>(I) && !ToBeDeletedInsts.count(I) && isInstructionTriviallyDead(I)) {
if (!isa<PHINode>(I) && !ToBeDeletedInsts.count(I) &&
isInstructionTriviallyDead(I)) {
DeadInsts.push_back(I);
}
if (isa<Constant>(NewV) && isa<BranchInst>(U->getUser())) {
@ -5242,6 +5374,9 @@ void Attributor::identifyDefaultAbstractAttributes(Function &F) {
// Every argument with pointer type might be marked
// "readnone/readonly/writeonly/..."
getOrCreateAAFor<AAMemoryBehavior>(ArgPos);
// Every argument with pointer type might be marked nofree.
getOrCreateAAFor<AANoFree>(ArgPos);
}
}
@ -5284,6 +5419,9 @@ void Attributor::identifyDefaultAbstractAttributes(Function &F) {
// Call site argument attribute "align".
getOrCreateAAFor<AAAlign>(CSArgPos);
// Call site argument attribute "nofree".
getOrCreateAAFor<AANoFree>(CSArgPos);
}
}
return true;
@ -5564,7 +5702,6 @@ const char AAMemoryBehavior::ID = 0;
CREATE_FUNCTION_ABSTRACT_ATTRIBUTE_FOR_POSITION(AANoUnwind)
CREATE_FUNCTION_ABSTRACT_ATTRIBUTE_FOR_POSITION(AANoSync)
CREATE_FUNCTION_ABSTRACT_ATTRIBUTE_FOR_POSITION(AANoFree)
CREATE_FUNCTION_ABSTRACT_ATTRIBUTE_FOR_POSITION(AANoRecurse)
CREATE_FUNCTION_ABSTRACT_ATTRIBUTE_FOR_POSITION(AAWillReturn)
CREATE_FUNCTION_ABSTRACT_ATTRIBUTE_FOR_POSITION(AANoReturn)
@ -5578,6 +5715,7 @@ CREATE_VALUE_ABSTRACT_ATTRIBUTE_FOR_POSITION(AANoCapture)
CREATE_ALL_ABSTRACT_ATTRIBUTE_FOR_POSITION(AAValueSimplify)
CREATE_ALL_ABSTRACT_ATTRIBUTE_FOR_POSITION(AAIsDead)
CREATE_ALL_ABSTRACT_ATTRIBUTE_FOR_POSITION(AANoFree)
CREATE_FUNCTION_ONLY_ABSTRACT_ATTRIBUTE_FOR_POSITION(AAHeapToStack)

32
test/Transforms/FunctionAttrs/align.ll
View File

@ -8,26 +8,26 @@ target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
; TEST 1
; ATTRIBUTOR: define align 8 i32* @test1(i32* readnone returned align 8 "no-capture-maybe-returned" %0)
; ATTRIBUTOR: define align 8 i32* @test1(i32* nofree readnone returned align 8 "no-capture-maybe-returned" %0)
define i32* @test1(i32* align 8 %0) #0 {
ret i32* %0
}
; TEST 2
; ATTRIBUTOR: define i32* @test2(i32* readnone returned "no-capture-maybe-returned" %0)
; ATTRIBUTOR: define i32* @test2(i32* nofree readnone returned "no-capture-maybe-returned" %0)
define i32* @test2(i32* %0) #0 {
ret i32* %0
}
; TEST 3
; ATTRIBUTOR: define align 4 i32* @test3(i32* readnone align 8 "no-capture-maybe-returned" %0, i32* readnone align 4 "no-capture-maybe-returned" %1, i1 %2)
; ATTRIBUTOR: define align 4 i32* @test3(i32* nofree readnone align 8 "no-capture-maybe-returned" %0, i32* nofree readnone align 4 "no-capture-maybe-returned" %1, i1 %2)
define i32* @test3(i32* align 8 %0, i32* align 4 %1, i1 %2) #0 {
%ret = select i1 %2, i32* %0, i32* %1
ret i32* %ret
}
; TEST 4
; ATTRIBUTOR: define align 32 i32* @test4(i32* readnone align 32 "no-capture-maybe-returned" %0, i32* readnone align 32 "no-capture-maybe-returned" %1, i1 %2)
; ATTRIBUTOR: define align 32 i32* @test4(i32* nofree readnone align 32 "no-capture-maybe-returned" %0, i32* nofree readnone align 32 "no-capture-maybe-returned" %1, i1 %2)
define i32* @test4(i32* align 32 %0, i32* align 32 %1, i1 %2) #0 {
%ret = select i1 %2, i32* %0, i32* %1
ret i32* %ret
@ -134,7 +134,7 @@ define internal i8* @f3(i8* readnone %0) local_unnamed_addr #0 {
; Better than IR information
define align 4 i32* @test7(i32* align 32 %p) #0 {
; ATTRIBUTOR-LABEL: define {{[^@]+}}@test7
; ATTRIBUTOR-SAME: (i32* readnone returned align 32 "no-capture-maybe-returned" [[P:%.*]])
; ATTRIBUTOR-SAME: (i32* nofree readnone returned align 32 "no-capture-maybe-returned" [[P:%.*]])
; ATTRIBUTOR-NEXT: ret i32* [[P:%.*]]
;
tail call i8* @f1(i8* align 8 dereferenceable(1) @a1)
@ -146,11 +146,11 @@ define align 4 i32* @test7(i32* align 32 %p) #0 {
define internal i8* @f1b(i8* readnone %0) local_unnamed_addr #0 {
;
; ATTRIBUTOR-LABEL: define {{[^@]+}}@f1b
; ATTRIBUTOR-SAME: (i8* nonnull readnone align 8 dereferenceable(1) "no-capture-maybe-returned" [[TMP0:%.*]]) local_unnamed_addr
; ATTRIBUTOR-SAME: (i8* nofree nonnull readnone align 8 dereferenceable(1) "no-capture-maybe-returned" [[TMP0:%.*]]) local_unnamed_addr
; ATTRIBUTOR-NEXT: [[TMP2:%.*]] = icmp eq i8* [[TMP0:%.*]], null
; ATTRIBUTOR-NEXT: br i1 [[TMP2]], label [[TMP3:%.*]], label [[TMP5:%.*]]
; ATTRIBUTOR: 3:
; ATTRIBUTOR-NEXT: [[TMP4:%.*]] = tail call align 8 i8* @f2b(i8* nonnull align 8 dereferenceable(1) @a1)
; ATTRIBUTOR-NEXT: [[TMP4:%.*]] = tail call align 8 i8* @f2b(i8* nofree nonnull align 8 dereferenceable(1) @a1)
; ATTRIBUTOR-NEXT: [[L:%.*]] = load i8, i8* [[TMP4]], align 8
; ATTRIBUTOR-NEXT: store i8 [[L]], i8* @a1, align 8
; ATTRIBUTOR-NEXT: br label [[TMP5]]
@ -176,14 +176,14 @@ define internal i8* @f1b(i8* readnone %0) local_unnamed_addr #0 {
define internal i8* @f2b(i8* readnone %0) local_unnamed_addr #0 {
;
; ATTRIBUTOR-LABEL: define {{[^@]+}}@f2b
; ATTRIBUTOR-SAME: (i8* nonnull readnone align 8 dereferenceable(1) "no-capture-maybe-returned" [[TMP0:%.*]]) local_unnamed_addr
; ATTRIBUTOR-SAME: (i8* nofree nonnull readnone align 8 dereferenceable(1) "no-capture-maybe-returned" [[TMP0:%.*]]) local_unnamed_addr
; ATTRIBUTOR-NEXT: [[TMP2:%.*]] = icmp eq i8* @a1, null
; ATTRIBUTOR-NEXT: br i1 [[TMP2]], label [[TMP5:%.*]], label [[TMP3:%.*]]
; ATTRIBUTOR: 3:
; ATTRIBUTOR-NEXT: [[TMP4:%.*]] = tail call i8* @f1b(i8* nonnull align 8 dereferenceable(1) "no-capture-maybe-returned" @a1)
; ATTRIBUTOR-NEXT: [[TMP4:%.*]] = tail call i8* @f1b(i8* nofree nonnull align 8 dereferenceable(1) "no-capture-maybe-returned" @a1)
; ATTRIBUTOR-NEXT: br label [[TMP7:%.*]]
; ATTRIBUTOR: 5:
; ATTRIBUTOR-NEXT: [[TMP6:%.*]] = tail call i8* @f3b(i8* nonnull align 16 dereferenceable(1) @a2)
; ATTRIBUTOR-NEXT: [[TMP6:%.*]] = tail call i8* @f3b(i8* nofree nonnull align 16 dereferenceable(1) @a2)
; ATTRIBUTOR-NEXT: br label [[TMP7]]
; ATTRIBUTOR: 7:
; ATTRIBUTOR-NEXT: [[TMP8:%.*]] = phi i8* [ [[TMP4]], [[TMP3]] ], [ [[TMP6]], [[TMP5]] ]
@ -210,11 +210,11 @@ define internal i8* @f2b(i8* readnone %0) local_unnamed_addr #0 {
define internal i8* @f3b(i8* readnone %0) local_unnamed_addr #0 {
;
; ATTRIBUTOR-LABEL: define {{[^@]+}}@f3b
; ATTRIBUTOR-SAME: (i8* nocapture nonnull readnone align 16 dereferenceable(1) [[TMP0:%.*]]) local_unnamed_addr
; ATTRIBUTOR-SAME: (i8* nocapture nofree nonnull readnone align 16 dereferenceable(1) [[TMP0:%.*]]) local_unnamed_addr
; ATTRIBUTOR-NEXT: [[TMP2:%.*]] = icmp eq i8* @a2, null
; ATTRIBUTOR-NEXT: br i1 [[TMP2]], label [[TMP3:%.*]], label [[TMP5:%.*]]
; ATTRIBUTOR: 3:
; ATTRIBUTOR-NEXT: [[TMP4:%.*]] = tail call i8* @f1b(i8* nonnull align 16 dereferenceable(1) @a2)
; ATTRIBUTOR-NEXT: [[TMP4:%.*]] = tail call i8* @f1b(i8* nofree nonnull align 16 dereferenceable(1) @a2)
; ATTRIBUTOR-NEXT: br label [[TMP5]]
; ATTRIBUTOR: 5:
; ATTRIBUTOR-NEXT: [[TMP6:%.*]] = phi i8* [ [[TMP4]], [[TMP3]] ], [ @a1, [[TMP1:%.*]] ]
@ -234,8 +234,8 @@ define internal i8* @f3b(i8* readnone %0) local_unnamed_addr #0 {
define align 4 i32* @test7b(i32* align 32 %p) #0 {
; ATTRIBUTOR-LABEL: define {{[^@]+}}@test7b
; ATTRIBUTOR-SAME: (i32* readnone returned align 32 "no-capture-maybe-returned" [[P:%.*]])
; ATTRIBUTOR-NEXT: [[TMP1:%.*]] = tail call i8* @f1b(i8* nonnull align 8 dereferenceable(1) @a1)
; ATTRIBUTOR-SAME: (i32* nofree readnone returned align 32 "no-capture-maybe-returned" [[P:%.*]])
; ATTRIBUTOR-NEXT: [[TMP1:%.*]] = tail call i8* @f1b(i8* nofree nonnull align 8 dereferenceable(1) @a1)
; ATTRIBUTOR-NEXT: ret i32* [[P:%.*]]
;
tail call i8* @f1b(i8* align 8 dereferenceable(1) @a1)
@ -276,7 +276,7 @@ define void @test9_traversal(i1 %c, i32* align 4 %B, i32* align 8 %C) {
; FIXME: This will work with an upcoming patch (D66618 or similar)
; define align 32 i32* @test10a(i32* align 32 "no-capture-maybe-returned" %p)
; ATTRIBUTOR: define i32* @test10a(i32* nonnull align 32 dereferenceable(4) "no-capture-maybe-returned" %p)
; ATTRIBUTOR: define i32* @test10a(i32* nofree nonnull align 32 dereferenceable(4) "no-capture-maybe-returned" %p)
define i32* @test10a(i32* align 32 %p) {
; ATTRIBUTOR: %l = load i32, i32* %p, align 32
%l = load i32, i32* %p
@ -304,7 +304,7 @@ e:
; FIXME: This will work with an upcoming patch (D66618 or similar)
; define align 32 i32* @test10b(i32* align 32 "no-capture-maybe-returned" %p)
; ATTRIBUTOR: define i32* @test10b(i32* nonnull align 32 dereferenceable(4) "no-capture-maybe-returned" %p)
; ATTRIBUTOR: define i32* @test10b(i32* nofree nonnull align 32 dereferenceable(4) "no-capture-maybe-returned" %p)
define i32* @test10b(i32* align 32 %p) {
; ATTRIBUTOR: %l = load i32, i32* %p, align 32
%l = load i32, i32* %p

30
test/Transforms/FunctionAttrs/arg_nocapture.ll
View File

@ -12,7 +12,7 @@ target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
; }
;
; FIXME: no-capture missing for %p
; CHECK: define i32 @is_null_return(i32* readnone %p)
; CHECK: define i32 @is_null_return(i32* nofree readnone %p)
define i32 @is_null_return(i32* %p) #0 {
entry:
%cmp = icmp eq i32* %p, null
@ -31,7 +31,7 @@ entry:
; }
;
; FIXME: no-capture missing for %p
; CHECK: define i32 @is_null_control(i32* readnone %p)
; CHECK: define i32 @is_null_control(i32* nofree readnone %p)
define i32 @is_null_control(i32* %p) #0 {
entry:
%retval = alloca i32, align 4
@ -66,7 +66,7 @@ return: ; preds = %if.end3, %if.then2,
; return 0;
; }
;
; CHECK: define noalias nonnull align 536870912 dereferenceable(4294967295) double* @srec0(double* nocapture readnone %a)
; CHECK: define noalias nonnull align 536870912 dereferenceable(4294967295) double* @srec0(double* nocapture nofree readnone %a)
define double* @srec0(double* %a) #0 {
entry:
%call = call double* @srec0(double* %a)
@ -86,7 +86,7 @@ entry:
;
; Other arguments are possible here due to the no-return behavior.
;
; CHECK: define noalias nonnull align 536870912 dereferenceable(4294967295) i32* @srec16(i32* nocapture readnone %a)
; CHECK: define noalias nonnull align 536870912 dereferenceable(4294967295) i32* @srec16(i32* nocapture nofree readnone %a)
define i32* @srec16(i32* %a) #0 {
entry:
%call = call i32* @srec16(i32* %a)
@ -112,11 +112,11 @@ entry:
; TEST SCC with various calls, casts, and comparisons agains NULL
;
; CHECK: define dereferenceable_or_null(4) float* @scc_A(i32* readnone returned dereferenceable_or_null(4) "no-capture-maybe-returned" %a)
; CHECK: define dereferenceable_or_null(4) float* @scc_A(i32* nofree readnone returned dereferenceable_or_null(4) "no-capture-maybe-returned" %a)
;
; CHECK: define dereferenceable_or_null(8) i64* @scc_B(double* readnone returned dereferenceable_or_null(8) "no-capture-maybe-returned" %a)
; CHECK: define dereferenceable_or_null(8) i64* @scc_B(double* nofree readnone returned dereferenceable_or_null(8) "no-capture-maybe-returned" %a)
;
; CHECK: define dereferenceable_or_null(4) i8* @scc_C(i16* readnone returned dereferenceable_or_null(4) "no-capture-maybe-returned" %a)
; CHECK: define dereferenceable_or_null(4) i8* @scc_C(i16* nofree readnone returned dereferenceable_or_null(4) "no-capture-maybe-returned" %a)
;
; float *scc_A(int *a) {
; return (float*)(a ? (int*)scc_A((int*)scc_B((double*)scc_C((short*)a))) : a);
@ -244,7 +244,7 @@ declare i32 @printf(i8* nocapture, ...)
; }
;
; There should *not* be a no-capture attribute on %a
; CHECK: define nonnull dereferenceable(8) i64* @not_captured_but_returned_0(i64* nonnull returned writeonly dereferenceable(8) "no-capture-maybe-returned" %a)
; CHECK: define nonnull dereferenceable(8) i64* @not_captured_but_returned_0(i64* nofree nonnull returned writeonly dereferenceable(8) "no-capture-maybe-returned" %a)
define i64* @not_captured_but_returned_0(i64* %a) #0 {
entry:
@ -260,7 +260,7 @@ entry:
; }
;
; There should *not* be a no-capture attribute on %a
; CHECK: define nonnull dereferenceable(8) i64* @not_captured_but_returned_1(i64* nonnull writeonly dereferenceable(16) "no-capture-maybe-returned" %a)
; CHECK: define nonnull dereferenceable(8) i64* @not_captured_but_returned_1(i64* nofree nonnull writeonly dereferenceable(16) "no-capture-maybe-returned" %a)
define i64* @not_captured_but_returned_1(i64* %a) #0 {
entry:
%add.ptr = getelementptr inbounds i64, i64* %a, i64 1
@ -275,7 +275,7 @@ entry:
; not_captured_but_returned_1(a);
; }
;
; CHECK: define void @test_not_captured_but_returned_calls(i64* nocapture writeonly %a)
; CHECK: define void @test_not_captured_but_returned_calls(i64* nocapture nofree writeonly %a)
define void @test_not_captured_but_returned_calls(i64* %a) #0 {
entry:
%call = call i64* @not_captured_but_returned_0(i64* %a)
@ -290,7 +290,7 @@ entry:
; }
;
; There should *not* be a no-capture attribute on %a
; CHECK: define i64* @negative_test_not_captured_but_returned_call_0a(i64* returned writeonly "no-capture-maybe-returned" %a)
; CHECK: define i64* @negative_test_not_captured_but_returned_call_0a(i64* nofree returned writeonly "no-capture-maybe-returned" %a)
define i64* @negative_test_not_captured_but_returned_call_0a(i64* %a) #0 {
entry:
%call = call i64* @not_captured_but_returned_0(i64* %a)
@ -304,7 +304,7 @@ entry:
; }
;
; There should *not* be a no-capture attribute on %a
; CHECK: define void @negative_test_not_captured_but_returned_call_0b(i64* writeonly %a)
; CHECK: define void @negative_test_not_captured_but_returned_call_0b(i64* nofree writeonly %a)
define void @negative_test_not_captured_but_returned_call_0b(i64* %a) #0 {
entry:
%call = call i64* @not_captured_but_returned_0(i64* %a)
@ -320,7 +320,7 @@ entry:
; }
;
; There should *not* be a no-capture attribute on %a
; CHECK: define nonnull dereferenceable(8) i64* @negative_test_not_captured_but_returned_call_1a(i64* writeonly "no-capture-maybe-returned" %a)
; CHECK: define nonnull dereferenceable(8) i64* @negative_test_not_captured_but_returned_call_1a(i64* nofree writeonly "no-capture-maybe-returned" %a)
define i64* @negative_test_not_captured_but_returned_call_1a(i64* %a) #0 {
entry:
%call = call i64* @not_captured_but_returned_1(i64* %a)
@ -334,7 +334,7 @@ entry:
; }
;
; There should *not* be a no-capture attribute on %a
; CHECK: define void @negative_test_not_captured_but_returned_call_1b(i64* writeonly %a)
; CHECK: define void @negative_test_not_captured_but_returned_call_1b(i64* nofree writeonly %a)
define void @negative_test_not_captured_but_returned_call_1b(i64* %a) #0 {
entry:
%call = call i64* @not_captured_but_returned_1(i64* %a)
@ -456,7 +456,7 @@ entry:
declare i32* @readonly_i32p(i32*) readonly
define void @nocapture_is_not_subsumed_2(i32* nocapture %b) {
; CHECK-LABEL: define {{[^@]+}}@nocapture_is_not_subsumed_2
; CHECK-SAME: (i32* nocapture [[B:%.*]])
; CHECK-SAME: (i32* nocapture nofree [[B:%.*]])
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CALL:%.*]] = call i32* @readonly_i32p(i32* readonly [[B:%.*]])
; CHECK-NEXT: store i32 0, i32* [[CALL]]

38
test/Transforms/FunctionAttrs/arg_returned.ll
View File

@ -164,11 +164,11 @@ return: ; preds = %cond.end, %if.then3
; FNATTR: define double* @ptr_scc_r2(double* readnone %a, double* readnone %b, double* readnone %r)
;
; ATTRIBUTOR: Function Attrs: nofree noinline nosync nounwind readnone uwtable
; ATTRIBUTOR-NEXT: define double* @ptr_sink_r0(double* readnone returned "no-capture-maybe-returned" %r)
; ATTRIBUTOR-NEXT: define double* @ptr_sink_r0(double* nofree readnone returned "no-capture-maybe-returned" %r)
; ATTRIBUTOR: Function Attrs: nofree noinline nosync nounwind readnone uwtable
; ATTRIBUTOR-NEXT: define double* @ptr_scc_r1(double* readnone %a, double* readnone returned %r, double* nocapture readnone %b)
; ATTRIBUTOR-NEXT: define double* @ptr_scc_r1(double* nofree readnone %a, double* nofree readnone returned %r, double* nocapture nofree readnone %b)
; ATTRIBUTOR: Function Attrs: nofree noinline nosync nounwind readnone uwtable
; ATTRIBUTOR-NEXT: define double* @ptr_scc_r2(double* readnone %a, double* readnone %b, double* readnone returned %r)
; ATTRIBUTOR-NEXT: define double* @ptr_scc_r2(double* nofree readnone %a, double* nofree readnone %b, double* nofree readnone returned %r)
;
; double* ptr_scc_r1(double* a, double* b, double* r);
; double* ptr_scc_r2(double* a, double* b, double* r);
@ -254,7 +254,7 @@ return: ; preds = %cond.end, %if.then3
;
; FNATTR: define i32* @rt0(i32* readonly %a)
; BOTH: Function Attrs: nofree noinline norecurse noreturn nosync nounwind readonly uwtable
; BOTH-NEXT: define noalias nonnull align 536870912 dereferenceable(4294967295) i32* @rt0(i32* nocapture nonnull readonly dereferenceable(4) %a)
; BOTH-NEXT: define noalias nonnull align 536870912 dereferenceable(4294967295) i32* @rt0(i32* nocapture nofree nonnull readonly dereferenceable(4) %a)
define i32* @rt0(i32* %a) #0 {
entry:
%v = load i32, i32* %a, align 4
@ -272,7 +272,7 @@ entry:
;
; FNATTR: define noalias i32* @rt1(i32* nocapture readonly %a)
; BOTH: Function Attrs: nofree noinline norecurse noreturn nosync nounwind readonly uwtable
; BOTH-NEXT: define noalias nonnull align 536870912 dereferenceable(4294967295) i32* @rt1(i32* nocapture nonnull readonly dereferenceable(4) %a)
; BOTH-NEXT: define noalias nonnull align 536870912 dereferenceable(4294967295) i32* @rt1(i32* nocapture nofree nonnull readonly dereferenceable(4) %a)
define i32* @rt1(i32* %a) #0 {
entry:
%v = load i32, i32* %a, align 4
@ -286,8 +286,8 @@ entry:
;
; FNATTR: define i32* @rt2_helper(i32* %a)
; FNATTR: define i32* @rt2(i32* readnone %a, i32* readnone %b)
; BOTH: define i32* @rt2_helper(i32* readnone returned %a)
; BOTH: define i32* @rt2(i32* readnone %a, i32* readnone "no-capture-maybe-returned" %b)
; BOTH: define i32* @rt2_helper(i32* nofree readnone returned %a)
; BOTH: define i32* @rt2(i32* nofree readnone %a, i32* nofree readnone "no-capture-maybe-returned" %b)
define i32* @rt2_helper(i32* %a) #0 {
entry:
%call = call i32* @rt2(i32* %a, i32* %a)
@ -312,8 +312,8 @@ if.end:
;
; FNATTR: define i32* @rt3_helper(i32* %a, i32* %b)
; FNATTR: define i32* @rt3(i32* readnone %a, i32* readnone %b)
; BOTH: define i32* @rt3_helper(i32* readnone %a, i32* readnone returned "no-capture-maybe-returned" %b)
; BOTH: define i32* @rt3(i32* readnone %a, i32* readnone returned "no-capture-maybe-returned" %b)
; BOTH: define i32* @rt3_helper(i32* nofree readnone %a, i32* nofree readnone returned "no-capture-maybe-returned" %b)
; BOTH: define i32* @rt3(i32* nofree readnone %a, i32* nofree readnone returned "no-capture-maybe-returned" %b)
define i32* @rt3_helper(i32* %a, i32* %b) #0 {
entry:
%call = call i32* @rt3(i32* %a, i32* %b)
@ -495,12 +495,12 @@ if.end: ; preds = %if.then, %entry
; }
;
; BOTH: Function Attrs: nofree noinline norecurse nosync nounwind readnone uwtable
; BOTH-NEXT: define double* @bitcast(i32* readnone returned "no-capture-maybe-returned" %b)
; BOTH-NEXT: define double* @bitcast(i32* nofree readnone returned "no-capture-maybe-returned" %b)
;
; FNATTR: define double* @bitcast(i32* readnone %b)
;
; ATTRIBUTOR: Function Attrs: nofree noinline nosync nounwind readnone uwtable
; ATTRIBUTOR-NEXT: define double* @bitcast(i32* readnone returned "no-capture-maybe-returned" %b)
; ATTRIBUTOR-NEXT: define double* @bitcast(i32* nofree readnone returned "no-capture-maybe-returned" %b)
define double* @bitcast(i32* %b) #0 {
entry:
%bc0 = bitcast i32* %b to double*
@ -518,12 +518,12 @@ entry:
; }
;
; BOTH: Function Attrs: nofree noinline norecurse nosync nounwind readnone uwtable
; BOTH-NEXT: define double* @bitcasts_select_and_phi(i32* readnone returned %b)
; BOTH-NEXT: define double* @bitcasts_select_and_phi(i32* nofree readnone returned %b)
;
; FNATTR: define double* @bitcasts_select_and_phi(i32* readnone %b)
;
; ATTRIBUTOR: Function Attrs: nofree noinline nosync nounwind readnone uwtable
; ATTRIBUTOR-NEXT: define double* @bitcasts_select_and_phi(i32* readnone returned %b)
; ATTRIBUTOR-NEXT: define double* @bitcasts_select_and_phi(i32* nofree readnone returned %b)
define double* @bitcasts_select_and_phi(i32* %b) #0 {
entry:
%bc0 = bitcast i32* %b to double*
@ -556,12 +556,12 @@ if.end: ; preds = %if.then, %entry
; }
;
; BOTH: Function Attrs: nofree noinline norecurse nosync nounwind readnone uwtable
; BOTH-NEXT: define double* @ret_arg_arg_undef(i32* readnone returned %b)
; BOTH-NEXT: define double* @ret_arg_arg_undef(i32* nofree readnone returned %b)
;
; FNATTR: define double* @ret_arg_arg_undef(i32* readnone %b)
;
; ATTRIBUTOR: Function Attrs: nofree noinline nosync nounwind readnone uwtable
; ATTRIBUTOR-NEXT: define double* @ret_arg_arg_undef(i32* readnone returned %b)
; ATTRIBUTOR-NEXT: define double* @ret_arg_arg_undef(i32* nofree readnone returned %b)
define double* @ret_arg_arg_undef(i32* %b) #0 {
entry:
%bc0 = bitcast i32* %b to double*
@ -594,12 +594,12 @@ ret_undef:
; }
;
; BOTH: Function Attrs: nofree noinline norecurse nosync nounwind readnone uwtable
; BOTH-NEXT: define double* @ret_undef_arg_arg(i32* readnone returned %b)
; BOTH-NEXT: define double* @ret_undef_arg_arg(i32* nofree readnone returned %b)
;
; FNATTR: define double* @ret_undef_arg_arg(i32* readnone %b)
;
; ATTRIBUTOR: Function Attrs: nofree noinline nosync nounwind readnone uwtable
; ATTRIBUTOR-NEXT: define double* @ret_undef_arg_arg(i32* readnone returned %b)
; ATTRIBUTOR-NEXT: define double* @ret_undef_arg_arg(i32* nofree readnone returned %b)
define double* @ret_undef_arg_arg(i32* %b) #0 {
entry:
%bc0 = bitcast i32* %b to double*
@ -632,10 +632,10 @@ ret_arg1:
; }
;
; BOTH: Function Attrs: nofree noinline norecurse nosync nounwind readnone uwtable
; BOTH-NEXT: define double* @ret_undef_arg_undef(i32* readnone returned %b)
; BOTH-NEXT: define double* @ret_undef_arg_undef(i32* nofree readnone returned %b)
;
; FNATTR: define double* @ret_undef_arg_undef(i32* readnone %b)
; ATTRIBUTOR: define double* @ret_undef_arg_undef(i32* readnone returned %b)
; ATTRIBUTOR: define double* @ret_undef_arg_undef(i32* nofree readnone returned %b)
define double* @ret_undef_arg_undef(i32* %b) #0 {
entry:
%bc0 = bitcast i32* %b to double*

14
test/Transforms/FunctionAttrs/dereferenceable.ll
View File

@ -7,7 +7,7 @@ declare void @deref_phi_user(i32* %a);
; take mininimum of return values
;
define i32* @test1(i32* dereferenceable(4) %0, double* dereferenceable(8) %1, i1 zeroext %2) local_unnamed_addr {
; ATTRIBUTOR: define nonnull dereferenceable(4) i32* @test1(i32* nonnull readnone dereferenceable(4) "no-capture-maybe-returned" %0, double* nonnull readnone dereferenceable(8) "no-capture-maybe-returned" %1, i1 zeroext %2)
; ATTRIBUTOR: define nonnull dereferenceable(4) i32* @test1(i32* nofree nonnull readnone dereferenceable(4) "no-capture-maybe-returned" %0, double* nofree nonnull readnone dereferenceable(8) "no-capture-maybe-returned" %1, i1 zeroext %2)
%4 = bitcast double* %1 to i32*
%5 = select i1 %2, i32* %0, i32* %4
ret i32* %5
@ -15,7 +15,7 @@ define i32* @test1(i32* dereferenceable(4) %0, double* dereferenceable(8) %1, i1
; TEST 2
define i32* @test2(i32* dereferenceable_or_null(4) %0, double* dereferenceable(8) %1, i1 zeroext %2) local_unnamed_addr {
; ATTRIBUTOR: define dereferenceable_or_null(4) i32* @test2(i32* readnone dereferenceable_or_null(4) "no-capture-maybe-returned" %0, double* nonnull readnone dereferenceable(8) "no-capture-maybe-returned" %1, i1 zeroext %2)
; ATTRIBUTOR: define dereferenceable_or_null(4) i32* @test2(i32* nofree readnone dereferenceable_or_null(4) "no-capture-maybe-returned" %0, double* nofree nonnull readnone dereferenceable(8) "no-capture-maybe-returned" %1, i1 zeroext %2)
%4 = bitcast double* %1 to i32*
%5 = select i1 %2, i32* %0, i32* %4
ret i32* %5
@ -24,20 +24,20 @@ define i32* @test2(i32* dereferenceable_or_null(4) %0, double* dereferenceable(8
; TEST 3
; GEP inbounds
define i32* @test3_1(i32* dereferenceable(8) %0) local_unnamed_addr {
; ATTRIBUTOR: define nonnull dereferenceable(4) i32* @test3_1(i32* nonnull readnone dereferenceable(8) "no-capture-maybe-returned" %0)
; ATTRIBUTOR: define nonnull dereferenceable(4) i32* @test3_1(i32* nofree nonnull readnone dereferenceable(8) "no-capture-maybe-returned" %0)
%ret = getelementptr inbounds i32, i32* %0, i64 1
ret i32* %ret
}
define i32* @test3_2(i32* dereferenceable_or_null(32) %0) local_unnamed_addr {
; FIXME: We should not have both deref(x) and deref_or_null(y) with x >= y.
; ATTRIBUTOR: define nonnull dereferenceable(16) i32* @test3_2(i32* nonnull readnone dereferenceable(32) dereferenceable_or_null(32) "no-capture-maybe-returned" %0)
; ATTRIBUTOR: define nonnull dereferenceable(16) i32* @test3_2(i32* nofree nonnull readnone dereferenceable(32) dereferenceable_or_null(32) "no-capture-maybe-returned" %0)
%ret = getelementptr inbounds i32, i32* %0, i64 4
ret i32* %ret
}
define i32* @test3_3(i32* dereferenceable(8) %0, i32* dereferenceable(16) %1, i1 %2) local_unnamed_addr {
; ATTRIBUTOR: define nonnull dereferenceable(4) i32* @test3_3(i32* nonnull readnone dereferenceable(8) "no-capture-maybe-returned" %0, i32* nonnull readnone dereferenceable(16) "no-capture-maybe-returned" %1, i1 %2) local_unnamed_addr
; ATTRIBUTOR: define nonnull dereferenceable(4) i32* @test3_3(i32* nofree nonnull readnone dereferenceable(8) "no-capture-maybe-returned" %0, i32* nofree nonnull readnone dereferenceable(16) "no-capture-maybe-returned" %1, i1 %2) local_unnamed_addr
%ret1 = getelementptr inbounds i32, i32* %0, i64 1
%ret2 = getelementptr inbounds i32, i32* %1, i64 2
%ret = select i1 %2, i32* %ret1, i32* %ret2
@ -48,7 +48,7 @@ define i32* @test3_3(i32* dereferenceable(8) %0, i32* dereferenceable(16) %1, i1
; Better than known in IR.
define dereferenceable(4) i32* @test4(i32* dereferenceable(8) %0) local_unnamed_addr {
; ATTRIBUTOR: define nonnull dereferenceable(8) i32* @test4(i32* nonnull readnone returned dereferenceable(8) "no-capture-maybe-returned" %0)
; ATTRIBUTOR: define nonnull dereferenceable(8) i32* @test4(i32* nofree nonnull readnone returned dereferenceable(8) "no-capture-maybe-returned" %0)
ret i32* %0
}
@ -197,7 +197,7 @@ define i32* @f7_3() {
define i32* @test_for_minus_index(i32* %p) {
; FIXME: This should have a return dereferenceable(8) but we need to make sure it will work in loops as well.
; ATTRIBUTOR: define nonnull i32* @test_for_minus_index(i32* nonnull writeonly "no-capture-maybe-returned" %p)
; ATTRIBUTOR: define nonnull i32* @test_for_minus_index(i32* nofree nonnull writeonly "no-capture-maybe-returned" %p)
%q = getelementptr inbounds i32, i32* %p, i32 -2
store i32 1, i32* %q
ret i32* %q

26
test/Transforms/FunctionAttrs/heap_to_stack.ll
View File

@ -52,7 +52,7 @@ define void @test2() {
define void @test3() {
%1 = tail call noalias i8* @malloc(i64 4)
; CHECK: %1 = alloca i8, i64 4
; CHECK-NEXT: @no_sync_func(i8* noalias nocapture %1)
; CHECK-NEXT: @no_sync_func(i8* noalias nocapture nofree %1)
tail call void @no_sync_func(i8* %1)
; CHECK-NOT: @free(i8* %1)
tail call void @free(i8* %1)
@ -66,7 +66,7 @@ define void @test0() {
; CHECK: %1 = alloca i8, i64 8
; CHECK-NEXT: %calloc_bc = bitcast i8* %1 to i8*
; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* %calloc_bc, i8 0, i64 8, i1 false)
; CHECK-NEXT: @no_sync_func(i8* noalias nocapture %1)
; CHECK-NEXT: @no_sync_func(i8* noalias nocapture nofree %1)
tail call void @no_sync_func(i8* %1)
; CHECK-NOT: @free(i8* %1)
tail call void @free(i8* %1)
@ -77,7 +77,7 @@ define void @test0() {
define void @test4() {
%1 = tail call noalias i8* @malloc(i64 4)
; CHECK: %1 = alloca i8, i64 4
; CHECK-NEXT: @nofree_func(i8* noalias nocapture %1)
; CHECK-NEXT: @nofree_func(i8* noalias nocapture nofree %1)
tail call void @nofree_func(i8* %1)
ret void
}
@ -146,7 +146,7 @@ define void @test7() {
define void @test8() {
%1 = tail call noalias i8* @malloc(i64 4)
; CHECK: %1 = tail call noalias i8* @malloc(i64 4)
; CHECK-NEXT: @no_sync_func(i8* nocapture %1)
; CHECK-NEXT: @no_sync_func(i8* nocapture nofree %1)
tail call void @no_sync_func(i8* %1)
%2 = bitcast i8* %1 to i32*
store i32 10, i32* %2
@ -161,7 +161,7 @@ define void @test8() {
define void @test9() {
%1 = tail call noalias i8* @malloc(i64 4)
; CHECK: %1 = tail call noalias i8* @malloc(i64 4)
; CHECK-NEXT: @no_sync_func(i8* nocapture %1)
; CHECK-NEXT: @no_sync_func(i8* nocapture nofree %1)
tail call void @no_sync_func(i8* %1)
%2 = bitcast i8* %1 to i32*
store i32 10, i32* %2
@ -177,7 +177,7 @@ define void @test9() {
define i32 @test10() {
%1 = tail call noalias i8* @malloc(i64 4)
; CHECK: %1 = alloca i8, i64 4
; CHECK-NEXT: @no_sync_func(i8* noalias nocapture %1)
; CHECK-NEXT: @no_sync_func(i8* noalias nocapture nofree %1)
tail call void @no_sync_func(i8* %1)
%2 = bitcast i8* %1 to i32*
store i32 10, i32* %2
@ -190,7 +190,7 @@ define i32 @test10() {
define i32 @test_lifetime() {
%1 = tail call noalias i8* @malloc(i64 4)
; CHECK: %1 = alloca i8, i64 4
; CHECK-NEXT: @no_sync_func(i8* noalias nocapture %1)
; CHECK-NEXT: @no_sync_func(i8* noalias nocapture nofree %1)
tail call void @no_sync_func(i8* %1)
call void @llvm.lifetime.start.p0i8(i64 4, i8* %1)
%2 = bitcast i8* %1 to i32*
@ -283,7 +283,7 @@ define i32 @malloc_in_loop(i32 %0) {
define i32 @test13() {
%1 = tail call noalias i8* @malloc(i64 256)
; CHECK: %1 = tail call noalias i8* @malloc(i64 256)
; CHECK-NEXT: @no_sync_func(i8* noalias %1)
; CHECK-NEXT: @no_sync_func(i8* noalias nofree %1)
tail call void @no_sync_func(i8* %1)
%2 = bitcast i8* %1 to i32*
store i32 10, i32* %2
@ -296,7 +296,7 @@ define i32 @test13() {
define void @test14() {
%1 = tail call noalias i8* @calloc(i64 64, i64 4)
; CHECK: %1 = tail call noalias i8* @calloc(i64 64, i64 4)
; CHECK-NEXT: @no_sync_func(i8* noalias %1)
; CHECK-NEXT: @no_sync_func(i8* noalias nofree %1)
tail call void @no_sync_func(i8* %1)
tail call void @free(i8* %1)
; CHECK: tail call void @free(i8* noalias %1)
@ -306,7 +306,7 @@ define void @test14() {
define void @test15(i64 %S) {
; CHECK: %1 = tail call noalias i8* @malloc(i64 %S)
%1 = tail call noalias i8* @malloc(i64 %S)
; CHECK-NEXT: @no_sync_func(i8* noalias %1)
; CHECK-NEXT: @no_sync_func(i8* noalias nofree %1)
tail call void @no_sync_func(i8* %1)
; CHECK-NEXT: @free(i8* noalias %1)
tail call void @free(i8* %1)
@ -318,7 +318,7 @@ define void @test16a(i8 %v, i8** %P) {
%1 = tail call noalias i8* @malloc(i64 4)
; CHECK-NEXT: store i8 %v, i8* %1
store i8 %v, i8* %1
; CHECK-NEXT: @no_sync_func(i8* noalias nocapture %1)
; CHECK-NEXT: @no_sync_func(i8* noalias nocapture nofree %1)
tail call void @no_sync_func(i8* %1)
; CHECK-NOT: @free(i8* %1)
tail call void @free(i8* %1)
@ -330,7 +330,7 @@ define void @test16b(i8 %v, i8** %P) {
%1 = tail call noalias i8* @malloc(i64 4)
; CHECK-NEXT: store i8* %1, i8** %P
store i8* %1, i8** %P
; CHECK-NEXT: @no_sync_func(i8* nocapture %1)
; CHECK-NEXT: @no_sync_func(i8* nocapture nofree %1)
tail call void @no_sync_func(i8* %1)
; CHECK-NEXT: @free(i8* %1)
tail call void @free(i8* %1)
@ -342,7 +342,7 @@ define void @test16c(i8 %v, i8** %P) {
%1 = tail call noalias i8* @malloc(i64 4)
; CHECK-NEXT: store i8* %1, i8** %P
store i8* %1, i8** %P
; CHECK-NEXT: @no_sync_func(i8* nocapture %1)
; CHECK-NEXT: @no_sync_func(i8* nocapture nofree %1)
tail call void @no_sync_func(i8* %1) nounwind
; CHECK-NOT: @free
tail call void @free(i8* %1)

4
test/Transforms/FunctionAttrs/internal-noalias.ll
View File

@ -8,7 +8,7 @@ entry:
ret i32 %add
}
; CHECK: define private i32 @noalias_args(i32* nocapture nonnull readonly dereferenceable(4) %A, i32* noalias nocapture nonnull readonly dereferenceable(4) %B)
; CHECK: define private i32 @noalias_args(i32* nocapture nofree nonnull readonly dereferenceable(4) %A, i32* noalias nocapture nofree nonnull readonly dereferenceable(4) %B)
define private i32 @noalias_args(i32* %A, i32* %B) #0 {
entry:
@ -23,7 +23,7 @@ entry:
; FIXME: Should be something like this.
; define internal i32 @noalias_args_argmem(i32* noalias nocapture readonly %A, i32* noalias nocapture readonly %B)
; CHECK: define internal i32 @noalias_args_argmem(i32* nocapture nonnull readonly dereferenceable(4) %A, i32* nocapture nonnull readonly dereferenceable(4) %B)
; CHECK: define internal i32 @noalias_args_argmem(i32* nocapture nofree nonnull readonly dereferenceable(4) %A, i32* nocapture nofree nonnull readonly dereferenceable(4) %B)
;
define internal i32 @noalias_args_argmem(i32* %A, i32* %B) #1 {

14
test/Transforms/FunctionAttrs/liveness.ll
View File

@ -54,7 +54,7 @@ define internal i32 @internal_load(i32*) norecurse nounwind uwtable {
; TEST 1: Only first block is live.
; CHECK: Function Attrs: nofree noreturn nosync nounwind
; CHECK-NEXT: define i32 @first_block_no_return(i32 %a, i32* nocapture nonnull readonly %ptr1, i32* nocapture readnone %ptr2)
; CHECK-NEXT: define i32 @first_block_no_return(i32 %a, i32* nocapture nofree nonnull readonly %ptr1, i32* nocapture nofree readnone %ptr2)
define i32 @first_block_no_return(i32 %a, i32* nonnull %ptr1, i32* %ptr2) #0 {
entry:
call i32 @internal_load(i32* %ptr1)
@ -88,7 +88,7 @@ cond.end: ; preds = %cond.false, %cond.t
; dead block and check if it is deduced.
; CHECK: Function Attrs: nosync
; CHECK-NEXT: define i32 @dead_block_present(i32 %a, i32* nocapture readnone %ptr1)
; CHECK-NEXT: define i32 @dead_block_present(i32 %a, i32* nocapture nofree readnone %ptr1)
define i32 @dead_block_present(i32 %a, i32* %ptr1) #0 {
entry:
%cmp = icmp eq i32 %a, 0
@ -281,7 +281,7 @@ cleanup:
; TEST 6: Undefined behvior, taken from LangRef.
; FIXME: Should be able to detect undefined behavior.
; CHECK: define void @ub(i32* nocapture writeonly %0)
; CHECK: define void @ub(i32* nocapture nofree writeonly %0)
define void @ub(i32* %0) {
%poison = sub nuw i32 0, 1 ; Results in a poison value.
%still_poison = and i32 %poison, 0 ; 0, but also poison.
@ -761,14 +761,14 @@ live_with_dead_entry:
ret void
}
; CHECK: define internal void @useless_arg_sink(i32* nocapture readnone %a)
; CHECK: define internal void @useless_arg_sink(i32* nocapture nofree readnone %a)
define internal void @useless_arg_sink(i32* %a) {
ret void
}
; CHECK: define internal void @useless_arg_almost_sink(i32* nocapture readnone %a)
; CHECK: define internal void @useless_arg_almost_sink(i32* nocapture nofree readnone %a)
define internal void @useless_arg_almost_sink(i32* %a) {
; CHECK: call void @useless_arg_sink(i32* undef)
; CHECK: call void @useless_arg_sink(i32* nofree undef)
call void @useless_arg_sink(i32* %a)
ret void
}
@ -776,7 +776,7 @@ define internal void @useless_arg_almost_sink(i32* %a) {
; Check we do not annotate the function interface of this weak function.
; CHECK: define weak_odr void @useless_arg_ext(i32* %a)
define weak_odr void @useless_arg_ext(i32* %a) {
; CHECK: call void @useless_arg_almost_sink(i32* undef)
; CHECK: call void @useless_arg_almost_sink(i32* nofree undef)
call void @useless_arg_almost_sink(i32* %a)
ret void
}

18
test/Transforms/FunctionAttrs/misc.ll
View File

@ -10,8 +10,8 @@ define internal void @internal(void (i8*)* %fp) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[TMP:%.*]] = bitcast i32* [[A]] to i8*
; CHECK-NEXT: call void @foo(i32* nocapture nonnull align 4 dereferenceable(4) undef)
; CHECK-NEXT: call void [[FP]](i8* bitcast (void (i32*)* @foo to i8*))
; CHECK-NEXT: call void @foo(i32* nocapture nofree nonnull align 4 dereferenceable(4) undef)
; CHECK-NEXT: call void [[FP:%.*]](i8* bitcast (void (i32*)* @foo to i8*))
; CHECK-NEXT: call void @callback1(void (i32*)* nonnull @foo)
; CHECK-NEXT: call void @callback2(void (i8*)* bitcast (void (i32*)* @foo to void (i8*)*))
; CHECK-NEXT: call void @callback2(void (i8*)* [[FP]])
@ -24,7 +24,7 @@ define internal void @internal(void (i8*)* %fp) {
; DECL_CS-NEXT: entry:
; DECL_CS-NEXT: [[A:%.*]] = alloca i32, align 4
; DECL_CS-NEXT: [[TMP:%.*]] = bitcast i32* [[A]] to i8*
; DECL_CS-NEXT: call void @foo(i32* nocapture nonnull align 4 dereferenceable(4) undef)
; DECL_CS-NEXT: call void @foo(i32* nocapture nofree nonnull align 4 dereferenceable(4) undef)
; DECL_CS-NEXT: call void [[FP]](i8* bitcast (void (i32*)* @foo to i8*))
; DECL_CS-NEXT: call void @callback1(void (i32*)* nonnull @foo)
; DECL_CS-NEXT: call void @callback2(void (i8*)* nonnull bitcast (void (i32*)* @foo to void (i8*)*))
@ -52,7 +52,7 @@ define void @external(void (i8*)* %fp) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[TMP:%.*]] = bitcast i32* [[A]] to i8*
; CHECK-NEXT: call void @foo(i32* nocapture nonnull align 4 dereferenceable(4) undef)
; CHECK-NEXT: call void @foo(i32* nocapture nofree nonnull align 4 dereferenceable(4) undef)
; CHECK-NEXT: call void @callback1(void (i32*)* nonnull @foo)
; CHECK-NEXT: call void @callback2(void (i8*)* bitcast (void (i32*)* @foo to void (i8*)*))
; CHECK-NEXT: call void @callback2(void (i8*)* [[FP]])
@ -67,7 +67,7 @@ define void @external(void (i8*)* %fp) {
; DECL_CS-NEXT: entry:
; DECL_CS-NEXT: [[A:%.*]] = alloca i32, align 4
; DECL_CS-NEXT: [[TMP:%.*]] = bitcast i32* [[A]] to i8*
; DECL_CS-NEXT: call void @foo(i32* nocapture nonnull align 4 dereferenceable(4) undef)
; DECL_CS-NEXT: call void @foo(i32* nocapture nofree nonnull align 4 dereferenceable(4) undef)
; DECL_CS-NEXT: call void @callback1(void (i32*)* nonnull @foo)
; DECL_CS-NEXT: call void @callback2(void (i8*)* nonnull bitcast (void (i32*)* @foo to void (i8*)*))
; DECL_CS-NEXT: call void @callback2(void (i8*)* [[FP]])
@ -92,10 +92,10 @@ entry:
}
define internal void @foo(i32* %a) {
; ALL-LABEL: define {{[^@]+}}@foo
; ALL-SAME: (i32* nocapture readnone [[A:%.*]])
; ALL-NEXT: entry:
; ALL-NEXT: ret void
; CHECK-LABEL: define {{[^@]+}}@foo
; CHECK-SAME: (i32* nocapture nofree readnone [[A:%.*]])
; CHECK-NEXT: entry:
; CHECK-NEXT: ret void
;
entry:
ret void

2
test/Transforms/FunctionAttrs/noalias_returned.ll
View File

@ -153,7 +153,7 @@ define i8* @test8(i32* %0) nounwind uwtable {
; TEST 9
; Simple Argument Test
define internal void @test9(i8* %a, i8* %b) {
; CHECK: define internal void @test9(i8* noalias nocapture readnone %a, i8* nocapture readnone %b)
; CHECK: define internal void @test9(i8* noalias nocapture nofree readnone %a, i8* nocapture nofree readnone %b)
ret void
}
define void @test9_helper(i8* %a, i8* %b) {

67
test/Transforms/FunctionAttrs/nocapture.ll
View File

@ -6,13 +6,13 @@
@g = global i32* null ; <i32**> [#uses=1]
; FNATTR: define i32* @c1(i32* readnone returned %q)
; ATTRIBUTOR: define i32* @c1(i32* readnone returned "no-capture-maybe-returned" %q)
; ATTRIBUTOR: define i32* @c1(i32* nofree readnone returned "no-capture-maybe-returned" %q)
define i32* @c1(i32* %q) {
ret i32* %q
}
; FNATTR: define void @c2(i32* %q)
; ATTRIBUTOR: define void @c2(i32* writeonly %q)
; ATTRIBUTOR: define void @c2(i32* nofree writeonly %q)
; It would also be acceptable to mark %q as readnone. Update @c3 too.
define void @c2(i32* %q) {
store i32* %q, i32** @g
@ -20,14 +20,14 @@ define void @c2(i32* %q) {
}
; FNATTR: define void @c3(i32* %q)
; ATTRIBUTOR: define void @c3(i32* writeonly %q)
; ATTRIBUTOR: define void @c3(i32* nofree writeonly %q)
define void @c3(i32* %q) {
call void @c2(i32* %q)
ret void
}
; FNATTR: define i1 @c4(i32* %q, i32 %bitno)
; ATTRIBUTOR: define i1 @c4(i32* readnone %q, i32 %bitno)
; ATTRIBUTOR: define i1 @c4(i32* nofree readnone %q, i32 %bitno)
define i1 @c4(i32* %q, i32 %bitno) {
%tmp = ptrtoint i32* %q to i32
%tmp2 = lshr i32 %tmp, %bitno
@ -41,7 +41,7 @@ l1:
; c4b is c4 but without the escaping part
; FNATTR: define i1 @c4b(i32* %q, i32 %bitno)
; ATTRIBUTOR: define i1 @c4b(i32* nocapture readnone %q, i32 %bitno)
; ATTRIBUTOR: define i1 @c4b(i32* nocapture nofree readnone %q, i32 %bitno)
define i1 @c4b(i32* %q, i32 %bitno) {
%tmp = ptrtoint i32* %q to i32
%tmp2 = lshr i32 %tmp, %bitno
@ -56,7 +56,7 @@ l1:
@lookup_table = global [2 x i1] [ i1 0, i1 1 ]
; FNATTR: define i1 @c5(i32* %q, i32 %bitno)
; ATTRIBUTOR: define i1 @c5(i32* readonly %q, i32 %bitno)
; ATTRIBUTOR: define i1 @c5(i32* nofree readonly %q, i32 %bitno)
define i1 @c5(i32* %q, i32 %bitno) {
%tmp = ptrtoint i32* %q to i32
%tmp2 = lshr i32 %tmp, %bitno
@ -91,7 +91,8 @@ define i1* @lookup_bit(i32* %q, i32 %bitno) readnone nounwind {
ret i1* %lookup
}
; EITHER: define i1 @c7(i32* readonly %q, i32 %bitno)
; FNATTR: define i1 @c7(i32* readonly %q, i32 %bitno)
; ATTRIBUTOR: define i1 @c7(i32* nofree readonly %q, i32 %bitno)
define i1 @c7(i32* %q, i32 %bitno) {
%ptr = call i1* @lookup_bit(i32* %q, i32 %bitno)
%val = load i1, i1* %ptr
@ -99,7 +100,8 @@ define i1 @c7(i32* %q, i32 %bitno) {
}
; EITHER: define i32 @nc1(i32* %q, i32* nocapture %p, i1 %b)
; FNATTR: define i32 @nc1(i32* %q, i32* nocapture %p, i1 %b)
; ATTRIBUTOR: define i32 @nc1(i32* nofree %q, i32* nocapture nofree %p, i1 %b)
define i32 @nc1(i32* %q, i32* %p, i1 %b) {
e:
br label %l
@ -114,7 +116,8 @@ l:
ret i32 %val
}
; EITHER: define i32 @nc1_addrspace(i32* %q, i32 addrspace(1)* nocapture %p, i1 %b)
; FNATTR: define i32 @nc1_addrspace(i32* %q, i32 addrspace(1)* nocapture %p, i1 %b)
; ATTRIBUTOR: define i32 @nc1_addrspace(i32* nofree %q, i32 addrspace(1)* nocapture nofree %p, i1 %b)
define i32 @nc1_addrspace(i32* %q, i32 addrspace(1)* %p, i1 %b) {
e:
br label %l
@ -129,7 +132,8 @@ l:
ret i32 %val
}
; EITHER: define void @nc2(i32* nocapture %p, i32* %q)
; FNATTR: define void @nc2(i32* nocapture %p, i32* %q)
; ATTRIBUTOR: define void @nc2(i32* nocapture nofree %p, i32* nofree %q)
define void @nc2(i32* %p, i32* %q) {
%1 = call i32 @nc1(i32* %q, i32* %p, i1 0) ; <i32> [#uses=0]
ret void
@ -137,7 +141,7 @@ define void @nc2(i32* %p, i32* %q) {
; FNATTR: define void @nc3(void ()* nocapture %p)
; ATTRIBUTOR: define void @nc3(void ()* nocapture nonnull %p)
; ATTRIBUTOR: define void @nc3(void ()* nocapture nofree nonnull %p)
define void @nc3(void ()* %p) {
call void %p()
ret void
@ -151,7 +155,7 @@ define void @nc4(i8* %p) {
}
; FNATTR: define void @nc5(void (i8*)* nocapture %f, i8* nocapture %p)
; ATTRIBUTOR: define void @nc5(void (i8*)* nocapture nonnull %f, i8* nocapture %p)
; ATTRIBUTOR: define void @nc5(void (i8*)* nocapture nofree nonnull %f, i8* nocapture %p)
define void @nc5(void (i8*)* %f, i8* %p) {
call void %f(i8* %p) readonly nounwind
call void %f(i8* nocapture %p)
@ -159,7 +163,7 @@ define void @nc5(void (i8*)* %f, i8* %p) {
}
; FNATTR: define void @test1_1(i8* nocapture readnone %x1_1, i8* %y1_1, i1 %c)
; ATTRIBUTOR: define void @test1_1(i8* nocapture readnone %x1_1, i8* nocapture readnone %y1_1, i1 %c)
; ATTRIBUTOR: define void @test1_1(i8* nocapture nofree readnone %x1_1, i8* nocapture nofree readnone %y1_1, i1 %c)
; It would be acceptable to add readnone to %y1_1 and %y1_2.
define void @test1_1(i8* %x1_1, i8* %y1_1, i1 %c) {
call i8* @test1_2(i8* %x1_1, i8* %y1_1, i1 %c)
@ -168,7 +172,7 @@ define void @test1_1(i8* %x1_1, i8* %y1_1, i1 %c) {
}
; FNATTR: define i8* @test1_2(i8* nocapture readnone %x1_2, i8* returned %y1_2, i1 %c)
; ATTRIBUTOR: define i8* @test1_2(i8* nocapture readnone %x1_2, i8* readnone returned "no-capture-maybe-returned" %y1_2, i1 %c)
; ATTRIBUTOR: define i8* @test1_2(i8* nocapture nofree readnone %x1_2, i8* nofree readnone returned "no-capture-maybe-returned" %y1_2, i1 %c)
define i8* @test1_2(i8* %x1_2, i8* %y1_2, i1 %c) {
br i1 %c, label %t, label %f
t:
@ -179,14 +183,16 @@ f:
ret i8* %y1_2
}
; EITHER: define void @test2(i8* nocapture readnone %x2)
; FNATTR: define void @test2(i8* nocapture readnone %x2)
; ATTRIBUTOR: define void @test2(i8* nocapture nofree readnone %x2)
define void @test2(i8* %x2) {
call void @test2(i8* %x2)
store i32* null, i32** @g
ret void
}
; EITHER: define void @test3(i8* nocapture readnone %x3, i8* nocapture readnone %y3, i8* nocapture readnone %z3)
; FNATTR: define void @test3(i8* nocapture readnone %x3, i8* nocapture readnone %y3, i8* nocapture readnone %z3)
; ATTRIBUTOR: define void @test3(i8* nocapture nofree readnone %x3, i8* nocapture nofree readnone %y3, i8* nocapture nofree readnone %z3)
define void @test3(i8* %x3, i8* %y3, i8* %z3) {
call void @test3(i8* %z3, i8* %y3, i8* %x3)
store i32* null, i32** @g
@ -194,7 +200,7 @@ define void @test3(i8* %x3, i8* %y3, i8* %z3) {
}
; FNATTR: define void @test4_1(i8* %x4_1, i1 %c)
; ATTRIBUTOR: define void @test4_1(i8* nocapture readnone %x4_1, i1 %c)
; ATTRIBUTOR: define void @test4_1(i8* nocapture nofree readnone %x4_1, i1 %c)
define void @test4_1(i8* %x4_1, i1 %c) {
call i8* @test4_2(i8* %x4_1, i8* %x4_1, i8* %x4_1, i1 %c)
store i32* null, i32** @g
@ -202,7 +208,7 @@ define void @test4_1(i8* %x4_1, i1 %c) {
}
; FNATTR: define i8* @test4_2(i8* nocapture readnone %x4_2, i8* readnone returned %y4_2, i8* nocapture readnone %z4_2, i1 %c)
; ATTRIBUTOR: define i8* @test4_2(i8* nocapture readnone %x4_2, i8* readnone returned "no-capture-maybe-returned" %y4_2, i8* nocapture readnone %z4_2, i1 %c)
; ATTRIBUTOR: define i8* @test4_2(i8* nocapture nofree readnone %x4_2, i8* nofree readnone returned "no-capture-maybe-returned" %y4_2, i8* nocapture nofree readnone %z4_2, i1 %c)
define i8* @test4_2(i8* %x4_2, i8* %y4_2, i8* %z4_2, i1 %c) {
br i1 %c, label %t, label %f
t:
@ -232,27 +238,28 @@ define void @test6_2(i8* %x6_2, i8* %y6_2, i8* %z6_2) {
}
; FNATTR: define void @test_cmpxchg(i32* nocapture %p)
; ATTRIBUTOR: define void @test_cmpxchg(i32* nocapture nonnull dereferenceable(4) %p)
; ATTRIBUTOR: define void @test_cmpxchg(i32* nocapture nofree nonnull dereferenceable(4) %p)
define void @test_cmpxchg(i32* %p) {
cmpxchg i32* %p, i32 0, i32 1 acquire monotonic
ret void
}
; FNATTR: define void @test_cmpxchg_ptr(i32** nocapture %p, i32* %q)
; ATTRIBUTOR: define void @test_cmpxchg_ptr(i32** nocapture nonnull dereferenceable(8) %p, i32* %q)
; ATTRIBUTOR: define void @test_cmpxchg_ptr(i32** nocapture nofree nonnull dereferenceable(8) %p, i32* nofree %q)
define void @test_cmpxchg_ptr(i32** %p, i32* %q) {
cmpxchg i32** %p, i32* null, i32* %q acquire monotonic
ret void
}
; FNATTR: define void @test_atomicrmw(i32* nocapture %p)
; ATTRIBUTOR: define void @test_atomicrmw(i32* nocapture nonnull dereferenceable(4) %p)
; ATTRIBUTOR: define void @test_atomicrmw(i32* nocapture nofree nonnull dereferenceable(4) %p)
define void @test_atomicrmw(i32* %p) {
atomicrmw add i32* %p, i32 1 seq_cst
ret void
}
; EITHER: define void @test_volatile(i32* %x)
; FNATTR: define void @test_volatile(i32* %x)
; ATTRIBUTOR: define void @test_volatile(i32* nofree %x)
define void @test_volatile(i32* %x) {
entry:
%gep = getelementptr i32, i32* %x, i64 1
@ -294,20 +301,22 @@ define void @captureStrip(i8* %p) {
ret void
}
; EITHER: define i1 @captureICmp(i32* readnone %x)
; FNATTR: define i1 @captureICmp(i32* readnone %x)
; ATTRIBUTOR: define i1 @captureICmp(i32* nofree readnone %x)
define i1 @captureICmp(i32* %x) {
%1 = icmp eq i32* %x, null
ret i1 %1
}
; EITHER: define i1 @captureICmpRev(i32* readnone %x)
; FNATTR: define i1 @captureICmpRev(i32* readnone %x)
; ATTRIBUTOR: define i1 @captureICmpRev(i32* nofree readnone %x)
define i1 @captureICmpRev(i32* %x) {
%1 = icmp eq i32* null, %x
ret i1 %1
}
; FNATTR: define i1 @nocaptureInboundsGEPICmp(i32* nocapture readnone %x)
; ATTRIBUTOR: define i1 @nocaptureInboundsGEPICmp(i32* nocapture nonnull readnone %x)
; ATTRIBUTOR: define i1 @nocaptureInboundsGEPICmp(i32* nocapture nofree nonnull readnone %x)
define i1 @nocaptureInboundsGEPICmp(i32* %x) {
%1 = getelementptr inbounds i32, i32* %x, i32 5
%2 = bitcast i32* %1 to i8*
@ -316,7 +325,7 @@ define i1 @nocaptureInboundsGEPICmp(i32* %x) {
}
; FNATTR: define i1 @nocaptureInboundsGEPICmpRev(i32* nocapture readnone %x)
; ATTRIBUTOR: define i1 @nocaptureInboundsGEPICmpRev(i32* nocapture nonnull readnone %x)
; ATTRIBUTOR: define i1 @nocaptureInboundsGEPICmpRev(i32* nocapture nofree nonnull readnone %x)
define i1 @nocaptureInboundsGEPICmpRev(i32* %x) {
%1 = getelementptr inbounds i32, i32* %x, i32 5
%2 = bitcast i32* %1 to i8*
@ -324,14 +333,16 @@ define i1 @nocaptureInboundsGEPICmpRev(i32* %x) {
ret i1 %3
}
; EITHER: define i1 @nocaptureDereferenceableOrNullICmp(i32* nocapture readnone dereferenceable_or_null(4) %x)
; FNATTR: define i1 @nocaptureDereferenceableOrNullICmp(i32* nocapture readnone dereferenceable_or_null(4) %x)
; ATTRIBUTOR: define i1 @nocaptureDereferenceableOrNullICmp(i32* nocapture nofree readnone dereferenceable_or_null(4) %x)
define i1 @nocaptureDereferenceableOrNullICmp(i32* dereferenceable_or_null(4) %x) {
%1 = bitcast i32* %x to i8*
%2 = icmp eq i8* %1, null
ret i1 %2
}
; EITHER: define i1 @captureDereferenceableOrNullICmp(i32* readnone dereferenceable_or_null(4) %x)
; FNATTR: define i1 @captureDereferenceableOrNullICmp(i32* readnone dereferenceable_or_null(4) %x)
; ATTRIBUTOR: define i1 @captureDereferenceableOrNullICmp(i32* nofree readnone dereferenceable_or_null(4) %x)
define i1 @captureDereferenceableOrNullICmp(i32* dereferenceable_or_null(4) %x) "null-pointer-is-valid"="true" {
%1 = bitcast i32* %x to i8*
%2 = icmp eq i8* %1, null

29
test/Transforms/FunctionAttrs/nofree-attributor.ll
View File

@ -240,6 +240,35 @@ define void @f2() #0 {
ret void
}
; TEST 12 NoFree argument - positive.
; ATTRIBUTOR: define double @test12(double* nocapture nofree nonnull readonly dereferenceable(8) %a)
define double @test12(double* nocapture readonly %a) {
entry:
%0 = load double, double* %a, align 8
%call = tail call double @cos(double %0) #2
ret double %call
}
declare double @cos(double) nobuiltin nounwind nofree
; FIXME: %a should be nofree.
; TEST 13 NoFree argument - positive.
; ATTRIBUTOR: define noalias i32* @test13(i64* nocapture nonnull readonly dereferenceable(8) %a)
define noalias i32* @test13(i64* nocapture readonly %a) {
entry:
%0 = load i64, i64* %a, align 8
%call = tail call noalias i8* @malloc(i64 %0) #2
%1 = bitcast i8* %call to i32*
ret i32* %1
}
; ATTRIBUTOR: define void @test14(i8* nocapture %0, i8* nocapture nofree readnone %1)
define void @test14(i8* nocapture %0, i8* nocapture %1) {
tail call void @free(i8* %0) #1
ret void
}
declare noalias i8* @malloc(i64)
attributes #0 = { nounwind uwtable noinline }
attributes #1 = { nounwind }

21
test/Transforms/FunctionAttrs/nonnull.ll
View File

@ -174,7 +174,7 @@ define void @test13_helper() {
ret void
}
define internal void @test13(i8* %a, i8* %b, i8* %c) {
; ATTRIBUTOR: define internal void @test13(i8* nocapture nonnull readnone %a, i8* nocapture readnone %b, i8* nocapture readnone %c)
; ATTRIBUTOR: define internal void @test13(i8* nocapture nofree nonnull readnone %a, i8* nocapture nofree readnone %b, i8* nocapture nofree readnone %c)
ret void
}
@ -194,7 +194,7 @@ declare nonnull i8* @nonnull()
define internal i32* @f1(i32* %arg) {
; FIXME: missing nonnull It should be nonnull @f1(i32* nonnull readonly %arg)
; ATTRIBUTOR: define internal nonnull i32* @f1(i32* readonly %arg)
; ATTRIBUTOR: define internal nonnull i32* @f1(i32* nofree readonly %arg)
bb:
%tmp = icmp eq i32* %arg, null
@ -207,14 +207,14 @@ bb1: ; preds = %bb
bb4: ; preds = %bb1
%tmp5 = getelementptr inbounds i32, i32* %arg, i64 1
; ATTRIBUTOR: %tmp5b = tail call nonnull i32* @f3(i32* nonnull %tmp5)
; ATTRIBUTOR: %tmp5b = tail call nonnull i32* @f3(i32* nofree nonnull %tmp5)
%tmp5b = tail call i32* @f3(i32* %tmp5)
%tmp5c = getelementptr inbounds i32, i32* %tmp5b, i64 -1
br label %bb9
bb6: ; preds = %bb1
; FIXME: missing nonnull. It should be @f2(i32* nonnull %arg)
; ATTRIBUTOR: %tmp7 = tail call nonnull i32* @f2(i32* %arg)
; ATTRIBUTOR: %tmp7 = tail call nonnull i32* @f2(i32* nofree %arg)
%tmp7 = tail call i32* @f2(i32* %arg)
ret i32* %tmp7
@ -225,21 +225,21 @@ bb9: ; preds = %bb4, %bb
define internal i32* @f2(i32* %arg) {
; FIXME: missing nonnull. It should be nonnull @f2(i32* nonnull %arg)
; ATTRIBUTOR: define internal nonnull i32* @f2(i32* readonly %arg)
; ATTRIBUTOR: define internal nonnull i32* @f2(i32* nofree readonly %arg)
bb:
; FIXME: missing nonnull. It should be @f1(i32* nonnull readonly %arg)
; ATTRIBUTOR: %tmp = tail call nonnull i32* @f1(i32* %arg)
; ATTRIBUTOR: %tmp = tail call nonnull i32* @f1(i32* nofree %arg)
%tmp = tail call i32* @f1(i32* %arg)
ret i32* %tmp
}
define dso_local noalias i32* @f3(i32* %arg) {
; FIXME: missing nonnull. It should be nonnull @f3(i32* nonnull readonly %arg)
; ATTRIBUTOR: define dso_local noalias nonnull i32* @f3(i32* readonly %arg)
; ATTRIBUTOR: define dso_local noalias nonnull i32* @f3(i32* nofree readonly %arg)
bb:
; FIXME: missing nonnull. It should be @f1(i32* nonnull readonly %arg)
; ATTRIBUTOR: %tmp = call nonnull i32* @f1(i32* %arg)
; ATTRIBUTOR: %tmp = call nonnull i32* @f1(i32* nofree %arg)
%tmp = call i32* @f1(i32* %arg)
ret i32* %tmp
}
@ -491,7 +491,8 @@ define i8 @parent7(i8* %a) {
declare i32 @esfp(...)
define i1 @parent8(i8* %a, i8* %bogus1, i8* %b) personality i8* bitcast (i32 (...)* @esfp to i8*){
; BOTH-LABEL: @parent8(i8* nonnull %a, i8* nocapture readnone %bogus1, i8* nonnull %b)
; FNATTR-LABEL: @parent8(i8* nonnull %a, i8* nocapture readnone %bogus1, i8* nonnull %b)
; ATTRIBUTOR-LABEL: @parent8(i8* nonnull %a, i8* nocapture nofree readnone %bogus1, i8* nonnull %b)
; BOTH-NEXT: entry:
; FNATTR-NEXT: invoke void @use2nonnull(i8* %a, i8* %b)
; ATTRIBUTOR-NEXT: invoke void @use2nonnull(i8* nonnull %a, i8* nonnull %b)
@ -539,7 +540,7 @@ define i32 addrspace(3)* @gep2(i32 addrspace(3)* %p) {
; FNATTR: define i32 addrspace(3)* @as(i32 addrspace(3)* readnone returned dereferenceable(4) %p)
; FIXME: We should propagate dereferenceable here but *not* nonnull
; ATTRIBUTOR: define dereferenceable_or_null(4) i32 addrspace(3)* @as(i32 addrspace(3)* readnone returned dereferenceable(4) dereferenceable_or_null(4) %p)
; ATTRIBUTOR: define dereferenceable_or_null(4) i32 addrspace(3)* @as(i32 addrspace(3)* nofree readnone returned dereferenceable(4) dereferenceable_or_null(4) %p)
define i32 addrspace(3)* @as(i32 addrspace(3)* dereferenceable(4) %p) {
ret i32 addrspace(3)* %p
}

4
test/Transforms/FunctionAttrs/norecurse.ll
View File

@ -130,14 +130,14 @@ define linkonce_odr i32 @leaf_redefinable() {
; Call through a function pointer
; ATTRIBUTOR-NOT: Function Attrs
; ATTRIBUTOR: define i32 @eval_func1(i32 (i32)* nocapture nonnull %0, i32 %1)
; ATTRIBUTOR: define i32 @eval_func1(i32 (i32)* nocapture nofree nonnull %0, i32 %1)
define i32 @eval_func1(i32 (i32)* , i32) local_unnamed_addr {
%3 = tail call i32 %0(i32 %1) #2
ret i32 %3
}
; ATTRIBUTOR-NOT: Function Attrs
; ATTRIBUTOR: define i32 @eval_func2(i32 (i32)* nocapture %0, i32 %1)
; ATTRIBUTOR: define i32 @eval_func2(i32 (i32)* nocapture nofree %0, i32 %1)
define i32 @eval_func2(i32 (i32)* , i32) local_unnamed_addr "null-pointer-is-valid"="true"{
%3 = tail call i32 %0(i32 %1) #2
ret i32 %3

28
test/Transforms/FunctionAttrs/nosync.ll
View File

@ -28,7 +28,7 @@ target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
; FNATTR: Function Attrs: norecurse nounwind optsize readnone ssp uwtable
; FNATTR-NEXT: define nonnull i32* @foo(%struct.ST* readnone %s)
; ATTRIBUTOR: Function Attrs: nofree nosync nounwind optsize readnone ssp uwtable
; ATTRIBUTOR-NEXT: define nonnull i32* @foo(%struct.ST* nonnull readnone "no-capture-maybe-returned" %s)
; ATTRIBUTOR-NEXT: define nonnull i32* @foo(%struct.ST* nofree nonnull readnone "no-capture-maybe-returned" %s)
define i32* @foo(%struct.ST* %s) nounwind uwtable readnone optsize ssp {
entry:
%arrayidx = getelementptr inbounds %struct.ST, %struct.ST* %s, i64 1, i32 2, i32 1, i64 5, i64 13
@ -45,7 +45,7 @@ entry:
; FNATTR: Function Attrs: nofree norecurse nounwind uwtable
; FNATTR-NEXT: define i32 @load_monotonic(i32* nocapture readonly %0)
; ATTRIBUTOR: Function Attrs: nofree norecurse nosync nounwind uwtable
; ATTRIBUTOR-NEXT: define i32 @load_monotonic(i32* nocapture nonnull readonly dereferenceable(4) %0)
; ATTRIBUTOR-NEXT: define i32 @load_monotonic(i32* nocapture nofree nonnull readonly dereferenceable(4) %0)
define i32 @load_monotonic(i32* nocapture readonly %0) norecurse nounwind uwtable {
%2 = load atomic i32, i32* %0 monotonic, align 4
ret i32 %2
@ -61,7 +61,7 @@ define i32 @load_monotonic(i32* nocapture readonly %0) norecurse nounwind uwtabl
; FNATTR: Function Attrs: nofree norecurse nounwind uwtable
; FNATTR-NEXT: define void @store_monotonic(i32* nocapture %0)
; ATTRIBUTOR: Function Attrs: nofree norecurse nosync nounwind uwtable
; ATTRIBUTOR-NEXT: define void @store_monotonic(i32* nocapture nonnull writeonly dereferenceable(4) %0)
; ATTRIBUTOR-NEXT: define void @store_monotonic(i32* nocapture nofree nonnull writeonly dereferenceable(4) %0)
define void @store_monotonic(i32* nocapture %0) norecurse nounwind uwtable {
store atomic i32 10, i32* %0 monotonic, align 4
ret void
@ -78,7 +78,7 @@ define void @store_monotonic(i32* nocapture %0) norecurse nounwind uwtable {
; FNATTR-NEXT: define i32 @load_acquire(i32* nocapture readonly %0)
; ATTRIBUTOR: Function Attrs: nofree norecurse nounwind uwtable
; ATTRIBUTOR-NOT: nosync
; ATTRIBUTOR-NEXT: define i32 @load_acquire(i32* nocapture nonnull readonly dereferenceable(4) %0)
; ATTRIBUTOR-NEXT: define i32 @load_acquire(i32* nocapture nofree nonnull readonly dereferenceable(4) %0)
define i32 @load_acquire(i32* nocapture readonly %0) norecurse nounwind uwtable {
%2 = load atomic i32, i32* %0 acquire, align 4
ret i32 %2
@ -94,7 +94,7 @@ define i32 @load_acquire(i32* nocapture readonly %0) norecurse nounwind uwtable
; FNATTR-NEXT: define void @load_release(i32* nocapture %0)
; ATTRIBUTOR: Function Attrs: nofree norecurse nounwind uwtable
; ATTRIBUTOR-NOT: nosync
; ATTRIBUTOR-NEXT: define void @load_release(i32* nocapture writeonly %0)
; ATTRIBUTOR-NEXT: define void @load_release(i32* nocapture nofree writeonly %0)
define void @load_release(i32* nocapture %0) norecurse nounwind uwtable {
store atomic volatile i32 10, i32* %0 release, align 4
ret void
@ -106,7 +106,7 @@ define void @load_release(i32* nocapture %0) norecurse nounwind uwtable {
; FNATTR-NEXT: define void @load_volatile_release(i32* nocapture %0)
; ATTRIBUTOR: Function Attrs: nofree norecurse nounwind uwtable
; ATTRIBUTOR-NOT: nosync
; ATTRIBUTOR-NEXT: define void @load_volatile_release(i32* nocapture writeonly %0)
; ATTRIBUTOR-NEXT: define void @load_volatile_release(i32* nocapture nofree writeonly %0)
define void @load_volatile_release(i32* nocapture %0) norecurse nounwind uwtable {
store atomic volatile i32 10, i32* %0 release, align 4
ret void
@ -122,7 +122,7 @@ define void @load_volatile_release(i32* nocapture %0) norecurse nounwind uwtable
; FNATTR-NEXT: define void @volatile_store(i32* %0)
; ATTRIBUTOR: Function Attrs: nofree norecurse nounwind uwtable
; ATTRIBUTOR-NOT: nosync
; ATTRIBUTOR-NEXT: define void @volatile_store(i32* %0)
; ATTRIBUTOR-NEXT: define void @volatile_store(i32* nofree %0)
define void @volatile_store(i32* %0) norecurse nounwind uwtable {
store volatile i32 14, i32* %0, align 4
ret void
@ -139,7 +139,7 @@ define void @volatile_store(i32* %0) norecurse nounwind uwtable {
; FNATTR-NEXT: define i32 @volatile_load(i32* %0)
; ATTRIBUTOR: Function Attrs: nofree norecurse nounwind uwtable
; ATTRIBUTOR-NOT: nosync
; ATTRIBUTOR-NEXT: define i32 @volatile_load(i32* %0)
; ATTRIBUTOR-NEXT: define i32 @volatile_load(i32* nofree %0)
define i32 @volatile_load(i32* %0) norecurse nounwind uwtable {
%2 = load volatile i32, i32* %0, align 4
ret i32 %2
@ -186,7 +186,7 @@ define void @call_might_sync() nounwind uwtable noinline {
; FNATTR: Function Attrs: nofree noinline nounwind uwtable
; FNATTR-NEXT: define i32 @scc1(i32* %0)
; ATTRIBUTOR: Function Attrs: nofree noinline noreturn nosync nounwind readnone uwtable
; ATTRIBUTOR-NEXT: define i32 @scc1(i32* nocapture readnone %0)
; ATTRIBUTOR-NEXT: define i32 @scc1(i32* nocapture nofree readnone %0)
define i32 @scc1(i32* %0) noinline nounwind uwtable {
tail call void @scc2(i32* %0);
%val = tail call i32 @volatile_load(i32* %0);
@ -196,7 +196,7 @@ define i32 @scc1(i32* %0) noinline nounwind uwtable {
; FNATTR: Function Attrs: nofree noinline nounwind uwtable
; FNATTR-NEXT: define void @scc2(i32* %0)
; ATTRIBUTOR: Function Attrs: nofree noinline noreturn nosync nounwind readnone uwtable
; ATTRIBUTOR-NEXT: define void @scc2(i32* nocapture readnone %0)
; ATTRIBUTOR-NEXT: define void @scc2(i32* nocapture nofree readnone %0)
define void @scc2(i32* %0) noinline nounwind uwtable {
tail call i32 @scc1(i32* %0);
ret void;
@ -224,7 +224,7 @@ define void @scc2(i32* %0) noinline nounwind uwtable {
; FNATTR: Function Attrs: nofree norecurse nounwind
; FNATTR-NEXT: define void @foo1(i32* nocapture %0, %"struct.std::atomic"* nocapture %1)
; ATTRIBUTOR-NOT: nosync
; ATTRIBUTOR: define void @foo1(i32* nocapture nonnull writeonly dereferenceable(4) %0, %"struct.std::atomic"* nocapture nonnull writeonly dereferenceable(1) %1)
; ATTRIBUTOR: define void @foo1(i32* nocapture nofree nonnull writeonly dereferenceable(4) %0, %"struct.std::atomic"* nocapture nofree nonnull writeonly dereferenceable(1) %1)
define void @foo1(i32* %0, %"struct.std::atomic"* %1) {
store i32 100, i32* %0, align 4
@ -237,7 +237,7 @@ define void @foo1(i32* %0, %"struct.std::atomic"* %1) {
; FNATTR: Function Attrs: nofree norecurse nounwind
; FNATTR-NEXT: define void @bar(i32* nocapture readnone %0, %"struct.std::atomic"* nocapture readonly %1)
; ATTRIBUTOR-NOT: nosync
; ATTRIBUTOR: define void @bar(i32* nocapture readnone %0, %"struct.std::atomic"* nocapture nonnull readonly dereferenceable(1) %1)
; ATTRIBUTOR: define void @bar(i32* nocapture nofree readnone %0, %"struct.std::atomic"* nocapture nofree nonnull readonly dereferenceable(1) %1)
define void @bar(i32* %0, %"struct.std::atomic"* %1) {
%3 = getelementptr inbounds %"struct.std::atomic", %"struct.std::atomic"* %1, i64 0, i32 0, i32 0
br label %4
@ -257,7 +257,7 @@ define void @bar(i32* %0, %"struct.std::atomic"* %1) {
; FNATTR: Function Attrs: nofree norecurse nounwind
; FNATTR-NEXT: define void @foo1_singlethread(i32* nocapture %0, %"struct.std::atomic"* nocapture %1)
; ATTRIBUTOR: Function Attrs: nofree nosync nounwind willreturn
; ATTRIBUTOR: define void @foo1_singlethread(i32* nocapture nonnull writeonly dereferenceable(4) %0, %"struct.std::atomic"* nocapture nonnull writeonly dereferenceable(1) %1)
; ATTRIBUTOR: define void @foo1_singlethread(i32* nocapture nofree nonnull writeonly dereferenceable(4) %0, %"struct.std::atomic"* nocapture nofree nonnull writeonly dereferenceable(1) %1)
define void @foo1_singlethread(i32* %0, %"struct.std::atomic"* %1) {
store i32 100, i32* %0, align 4
@ -270,7 +270,7 @@ define void @foo1_singlethread(i32* %0, %"struct.std::atomic"* %1) {
; FNATTR: Function Attrs: nofree norecurse nounwind
; FNATTR-NEXT: define void @bar_singlethread(i32* nocapture readnone %0, %"struct.std::atomic"* nocapture readonly %1)
; ATTRIBUTOR: Function Attrs: nofree nosync nounwind
; ATTRIBUTOR: define void @bar_singlethread(i32* nocapture readnone %0, %"struct.std::atomic"* nocapture nonnull readonly dereferenceable(1) %1)
; ATTRIBUTOR: define void @bar_singlethread(i32* nocapture nofree readnone %0, %"struct.std::atomic"* nocapture nofree nonnull readonly dereferenceable(1) %1)
define void @bar_singlethread(i32* %0, %"struct.std::atomic"* %1) {
%3 = getelementptr inbounds %"struct.std::atomic", %"struct.std::atomic"* %1, i64 0, i32 0, i32 0
br label %4

12
test/Transforms/FunctionAttrs/read_write_returned_arguments_scc.ll
View File

@ -30,7 +30,7 @@
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
; CHECK: Function Attrs: nofree nosync nounwind
; CHECK-NEXT: define i32* @external_ret2_nrw(i32* %n0, i32* %r0, i32* returned %w0)
; CHECK-NEXT: define i32* @external_ret2_nrw(i32* nofree %n0, i32* nofree %r0, i32* nofree returned %w0)
define i32* @external_ret2_nrw(i32* %n0, i32* %r0, i32* %w0) {
entry:
%call = call i32* @internal_ret0_nw(i32* %n0, i32* %w0)
@ -41,7 +41,7 @@ entry:
}
; CHECK: Function Attrs: nofree nosync nounwind
; CHECK-NEXT: define internal i32* @internal_ret0_nw(i32* returned %n0, i32* %w0)
; CHECK-NEXT: define internal i32* @internal_ret0_nw(i32* nofree returned %n0, i32* nofree %w0)
define internal i32* @internal_ret0_nw(i32* %n0, i32* %w0) {
entry:
%r0 = alloca i32, align 4
@ -70,7 +70,7 @@ return: ; preds = %if.end, %if.then
}
; CHECK: Function Attrs: nofree nosync nounwind
; CHECK-NEXT: define internal i32* @internal_ret1_rrw(i32* nonnull dereferenceable(4) %r0, i32* returned %r1, i32* %w0)
; CHECK-NEXT: define internal i32* @internal_ret1_rrw(i32* nofree nonnull dereferenceable(4) %r0, i32* nofree returned %r1, i32* nofree %w0)
define internal i32* @internal_ret1_rrw(i32* %r0, i32* %r1, i32* %w0) {
entry:
%0 = load i32, i32* %r0, align 4
@ -102,7 +102,7 @@ return: ; preds = %if.end, %if.then
}
; CHECK: Function Attrs: nofree norecurse nosync nounwind
; CHECK-NEXT: define i32* @external_sink_ret2_nrw(i32* readnone %n0, i32* nocapture readonly %r0, i32* returned writeonly "no-capture-maybe-returned" %w0)
; CHECK-NEXT: define i32* @external_sink_ret2_nrw(i32* nofree readnone %n0, i32* nocapture nofree readonly %r0, i32* nofree returned writeonly "no-capture-maybe-returned" %w0)
define i32* @external_sink_ret2_nrw(i32* %n0, i32* %r0, i32* %w0) {
entry:
%tobool = icmp ne i32* %n0, null
@ -121,7 +121,7 @@ return: ; preds = %if.end, %if.then
}
; CHECK: Function Attrs: nofree nosync nounwind
; CHECK-NEXT: define internal i32* @internal_ret1_rw(i32* nonnull dereferenceable(4) %r0, i32* returned %w0)
; CHECK-NEXT: define internal i32* @internal_ret1_rw(i32* nofree nonnull dereferenceable(4) %r0, i32* nofree returned %w0)
define internal i32* @internal_ret1_rw(i32* %r0, i32* %w0) {
entry:
%0 = load i32, i32* %r0, align 4
@ -147,7 +147,7 @@ return: ; preds = %if.end, %if.then
}
; CHECK: Function Attrs: nofree nosync nounwind
; CHECK-NEXT: define i32* @external_source_ret2_nrw(i32* %n0, i32* %r0, i32* returned %w0)
; CHECK-NEXT: define i32* @external_source_ret2_nrw(i32* nofree %n0, i32* nofree %r0, i32* nofree returned %w0)
define i32* @external_source_ret2_nrw(i32* %n0, i32* %r0, i32* %w0) {
entry:
%call = call i32* @external_sink_ret2_nrw(i32* %n0, i32* %r0, i32* %w0)

17
test/Transforms/FunctionAttrs/readattrs.ll
View File

@ -18,13 +18,14 @@ define void @test1_2(i8* %x1_2, i8* %y1_2, i8* %z1_2) {
}
; FNATTR: define i8* @test2(i8* readnone returned %p)
; ATTRIBUTOR: define i8* @test2(i8* readnone returned %p)
; ATTRIBUTOR: define i8* @test2(i8* nofree readnone returned %p)
define i8* @test2(i8* %p) {
store i32 0, i32* @x
ret i8* %p
}
; CHECK: define i1 @test3(i8* readnone %p, i8* readnone %q)
; FNATTR: define i1 @test3(i8* readnone %p, i8* readnone %q)
; ATTRIBUTOR: define i1 @test3(i8* nofree readnone %p, i8* nofree readnone %q)
define i1 @test3(i8* %p, i8* %q) {
%A = icmp ult i8* %p, %q
ret i1 %A
@ -39,7 +40,7 @@ define void @test4_2(i8* %p) {
}
; FNATTR: define void @test5(i8** nocapture %p, i8* %q)
; ATTRIBUTOR: define void @test5(i8** nocapture nonnull writeonly dereferenceable(8) %p, i8* writeonly %q)
; ATTRIBUTOR: define void @test5(i8** nocapture nofree nonnull writeonly dereferenceable(8) %p, i8* nofree writeonly %q)
; Missed optz'n: we could make %q readnone, but don't break test6!
define void @test5(i8** %p, i8* %q) {
store i8* %q, i8** %p
@ -57,21 +58,21 @@ define void @test6_2(i8** %p, i8* %q) {
}
; FNATTR: define void @test7_1(i32* inalloca nocapture %a)
; ATTRIBUTOR: define void @test7_1(i32* inalloca nocapture writeonly %a)
; ATTRIBUTOR: define void @test7_1(i32* inalloca nocapture nofree writeonly %a)
; inalloca parameters are always considered written
define void @test7_1(i32* inalloca %a) {
ret void
}
; FNATTR: define i32* @test8_1(i32* readnone returned %p)
; ATTRIBUTOR: define i32* @test8_1(i32* readnone returned %p)
; ATTRIBUTOR: define i32* @test8_1(i32* nofree readnone returned %p)
define i32* @test8_1(i32* %p) {
entry:
ret i32* %p
}
; FNATTR: define void @test8_2(i32* %p)
; ATTRIBUTOR: define void @test8_2(i32* nocapture writeonly %p)
; ATTRIBUTOR: define void @test8_2(i32* nocapture nofree writeonly %p)
define void @test8_2(i32* %p) {
entry:
%call = call i32* @test8_1(i32* %p)
@ -138,8 +139,8 @@ declare void @escape_readonly_ptr(i8** %addr, i8* readonly %ptr)
; FNATTR: define void @unsound_readnone(i8* nocapture readnone %ignored, i8* readnone %escaped_then_written)
; FNATTR: define void @unsound_readonly(i8* nocapture readnone %ignored, i8* readonly %escaped_then_written)
;
; ATTRIBUTOR: define void @unsound_readnone(i8* nocapture readnone %ignored, i8* %escaped_then_written)
; ATTRIBUTOR: define void @unsound_readonly(i8* nocapture readnone %ignored, i8* %escaped_then_written)
; ATTRIBUTOR: define void @unsound_readnone(i8* nocapture nofree readnone %ignored, i8* %escaped_then_written)
; ATTRIBUTOR: define void @unsound_readonly(i8* nocapture nofree readnone %ignored, i8* %escaped_then_written)
define void @unsound_readnone(i8* %ignored, i8* %escaped_then_written) {
%addr = alloca i8*
call void @escape_readnone_ptr(i8** %addr, i8* %escaped_then_written)

18
test/Transforms/FunctionAttrs/value-simplify.ll
View File

@ -203,14 +203,14 @@ define i32 @ipccp3() {
%struct.X = type { i8* }
define internal i32* @test_inalloca(i32* inalloca %a) {
; CHECK-LABEL: define {{[^@]+}}@test_inalloca
; CHECK-SAME: (i32* inalloca noalias returned writeonly [[A:%.*]])
; CHECK-SAME: (i32* inalloca noalias nofree returned writeonly [[A:%.*]])
; CHECK-NEXT: ret i32* [[A]]
;
ret i32* %a
}
define i32* @complicated_args_inalloca() {
; CHECK-LABEL: define {{[^@]+}}@complicated_args_inalloca()
; CHECK-NEXT: [[CALL:%.*]] = call i32* @test_inalloca(i32* noalias null)
; CHECK-NEXT: [[CALL:%.*]] = call i32* @test_inalloca(i32* noalias nofree null)
; CHECK-NEXT: ret i32* [[CALL]]
;
%call = call i32* @test_inalloca(i32* null)
@ -219,7 +219,7 @@ define i32* @complicated_args_inalloca() {
define internal void @test_sret(%struct.X* sret %a, %struct.X** %b) {
; CHECK-LABEL: define {{[^@]+}}@test_sret
; CHECK-SAME: (%struct.X* sret writeonly [[A:%.*]], %struct.X** nocapture nonnull writeonly dereferenceable(8) [[B:%.*]])
; CHECK-SAME: (%struct.X* nofree sret writeonly [[A:%.*]], %struct.X** nocapture nofree nonnull writeonly dereferenceable(8) [[B:%.*]])
; CHECK-NEXT: store %struct.X* [[A]], %struct.X** [[B]]
; CHECK-NEXT: ret void
;
@ -228,8 +228,8 @@ define internal void @test_sret(%struct.X* sret %a, %struct.X** %b) {
}
define void @complicated_args_sret(%struct.X** %b) {
; CHECK-LABEL: define {{[^@]+}}@complicated_args_sret
; CHECK-SAME: (%struct.X** nocapture writeonly [[B:%.*]])
; CHECK-NEXT: call void @test_sret(%struct.X* null, %struct.X** nocapture writeonly [[B]])
; CHECK-SAME: (%struct.X** nocapture nofree writeonly [[B:%.*]])
; CHECK-NEXT: call void @test_sret(%struct.X* nofree null, %struct.X** nocapture nofree writeonly [[B]])
; CHECK-NEXT: ret void
;
call void @test_sret(%struct.X* null, %struct.X** %b)
@ -238,14 +238,14 @@ define void @complicated_args_sret(%struct.X** %b) {
define internal %struct.X* @test_nest(%struct.X* nest %a) {
; CHECK-LABEL: define {{[^@]+}}@test_nest
; CHECK-SAME: (%struct.X* nest noalias readnone returned [[A:%.*]])
; CHECK-SAME: (%struct.X* nest noalias nofree readnone returned [[A:%.*]])
; CHECK-NEXT: ret %struct.X* [[A]]
;
ret %struct.X* %a
}
define %struct.X* @complicated_args_nest() {
; CHECK-LABEL: define {{[^@]+}}@complicated_args_nest()
; CHECK-NEXT: [[CALL:%.*]] = call %struct.X* @test_nest(%struct.X* noalias null)
; CHECK-NEXT: [[CALL:%.*]] = call %struct.X* @test_nest(%struct.X* noalias nofree null)
; CHECK-NEXT: ret %struct.X* [[CALL]]
;
%call = call %struct.X* @test_nest(%struct.X* null)
@ -255,7 +255,7 @@ define %struct.X* @complicated_args_nest() {
@S = external global %struct.X
define internal void @test_byval(%struct.X* byval %a) {
; CHECK-LABEL: define {{[^@]+}}@test_byval
; CHECK-SAME: (%struct.X* nocapture nonnull writeonly byval align 8 dereferenceable(8) [[A:%.*]])
; CHECK-SAME: (%struct.X* nocapture nofree nonnull writeonly byval align 8 dereferenceable(8) [[A:%.*]])
; CHECK-NEXT: [[G0:%.*]] = getelementptr [[STRUCT_X:%.*]], %struct.X* [[A]], i32 0, i32 0
; CHECK-NEXT: store i8* null, i8** [[G0]], align 8
; CHECK-NEXT: ret void
@ -266,7 +266,7 @@ define internal void @test_byval(%struct.X* byval %a) {
}
define void @complicated_args_byval() {
; CHECK-LABEL: define {{[^@]+}}@complicated_args_byval()
; CHECK-NEXT: call void @test_byval(%struct.X* nonnull align 8 dereferenceable(8) @S)
; CHECK-NEXT: call void @test_byval(%struct.X* nofree nonnull align 8 dereferenceable(8) @S)
; CHECK-NEXT: ret void
;
call void @test_byval(%struct.X* @S)

6
test/Transforms/FunctionAttrs/willreturn.ll
View File

@ -338,7 +338,7 @@ declare i32 @__gxx_personality_v0(...)
; FNATTR: Function Attrs: noinline norecurse nounwind readonly uwtable
; FNATTR-NEXT: define i32 @loop_constant_trip_count(i32* nocapture readonly %0)
; ATTRIBUTOR: Function Attrs: nofree noinline norecurse nosync nounwind readonly uwtable
; ATTRIBUTOR-NEXT: define i32 @loop_constant_trip_count(i32* nocapture readonly %0)
; ATTRIBUTOR-NEXT: define i32 @loop_constant_trip_count(i32* nocapture nofree readonly %0)
define i32 @loop_constant_trip_count(i32* nocapture readonly %0) #0 {
br label %3
@ -372,7 +372,7 @@ define i32 @loop_constant_trip_count(i32* nocapture readonly %0) #0 {
; FNATTR-NEXT: define i32 @loop_trip_count_unbound(i32 %0, i32 %1, i32* nocapture readonly %2, i32 %3) local_unnamed_addr
; ATTRIBUTOR: Function Attrs: nofree noinline norecurse nosync nounwind readonly uwtable
; ATTRIBUTOR-NOT: willreturn
; ATTRIBUTOR-NEXT: define i32 @loop_trip_count_unbound(i32 %0, i32 %1, i32* nocapture readonly %2, i32 %3) local_unnamed_addr
; ATTRIBUTOR-NEXT: define i32 @loop_trip_count_unbound(i32 %0, i32 %1, i32* nocapture nofree readonly %2, i32 %3) local_unnamed_addr
define i32 @loop_trip_count_unbound(i32 %0, i32 %1, i32* nocapture readonly %2, i32 %3) local_unnamed_addr #0 {
%5 = icmp eq i32 %0, %1
br i1 %5, label %6, label %8
@ -409,7 +409,7 @@ define i32 @loop_trip_count_unbound(i32 %0, i32 %1, i32* nocapture readonly %2,
; FNATTR: Function Attrs: noinline norecurse nounwind readonly uwtable
; FNATTR-NEXT: define i32 @loop_trip_dec(i32 %0, i32* nocapture readonly %1)
; ATTRIBUTOR: Function Attrs: nofree noinline norecurse nosync nounwind readonly uwtable
; ATTRIBUTOR-NEXT: define i32 @loop_trip_dec(i32 %0, i32* nocapture readonly %1) local_unnamed_addr
; ATTRIBUTOR-NEXT: define i32 @loop_trip_dec(i32 %0, i32* nocapture nofree readonly %1) local_unnamed_addr
define i32 @loop_trip_dec(i32 %0, i32* nocapture readonly %1) local_unnamed_addr #0 {
%3 = icmp sgt i32 %0, -1