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Corrects a problem where we reply exclusively of GEPs to drive

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analysis.  Better is to look for cases with useful GEPs and use them
when possible.  When a pair of useful GEPs is not available, use the
raw SCEVs directly. This approach supports better analysis of pointer
dereferencing.

In parallel, all the test cases are updated appropriately.
Cases where we have a store to *B++ can now be analyzed!

llvm-svn: 168474
This commit is contained in:
Preston Briggs 2012-11-21 23:50:04 +00:00
parent 8fc37da48b
commit 0889167a63
16 changed files with 295 additions and 211 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

177
lib/Analysis/DependenceAnalysis.cpp
View File

@ -2218,7 +2218,7 @@ bool DependenceAnalysis::gcdMIVtest(const SCEV *Src,
FullDependence &Result) const {
DEBUG(dbgs() << "starting gcd\n");
++GCDapplications;
unsigned BitWidth = Src->getType()->getIntegerBitWidth();
unsigned BitWidth = SE->getTypeSizeInBits(Src->getType());
APInt RunningGCD = APInt::getNullValue(BitWidth);
// Examine Src coefficients.
@ -3194,7 +3194,8 @@ static void dumpSmallBitVector(SmallBitVector &BV) {
// Goff, Kennedy, Tseng
// PLDI 1991
//
// Care is required to keep the code below up to date w.r.t. this routine.
// Care is required to keep the routine below, getSplitIteration(),
// up to date with respect to this routine.
Dependence *DependenceAnalysis::depends(Instruction *Src,
Instruction *Dst,
bool PossiblyLoopIndependent) {
@ -3203,9 +3204,11 @@ Dependence *DependenceAnalysis::depends(Instruction *Src,
// if both instructions don't reference memory, there's no dependence
return NULL;
if (!isLoadOrStore(Src) || !isLoadOrStore(Dst))
if (!isLoadOrStore(Src) || !isLoadOrStore(Dst)) {
// can only analyze simple loads and stores, i.e., no calls, invokes, etc.
DEBUG(dbgs() << "can only handle simple loads and stores\n");
return new Dependence(Src, Dst);
}
Value *SrcPtr = getPointerOperand(Src);
Value *DstPtr = getPointerOperand(Dst);
@ -3214,22 +3217,16 @@ Dependence *DependenceAnalysis::depends(Instruction *Src,
case AliasAnalysis::MayAlias:
case AliasAnalysis::PartialAlias:
// cannot analyse objects if we don't understand their aliasing.
DEBUG(dbgs() << "can't analyze may or partial alias\n");
return new Dependence(Src, Dst);
case AliasAnalysis::NoAlias:
// If the objects noalias, they are distinct, accesses are independent.
DEBUG(dbgs() << "no alias\n");
return NULL;
case AliasAnalysis::MustAlias:
break; // The underlying objects alias; test accesses for dependence.
}
GEPOperator *SrcGEP = dyn_cast<GEPOperator>(SrcPtr);
GEPOperator *DstGEP = dyn_cast<GEPOperator>(DstPtr);
if (!SrcGEP || !DstGEP)
return new Dependence(Src, Dst); // missing GEP, assume dependence
if (SrcGEP->getPointerOperandType() != DstGEP->getPointerOperandType())
return new Dependence(Src, Dst); // different types, assume dependence
// establish loop nesting levels
establishNestingLevels(Src, Dst);
DEBUG(dbgs() << " common nesting levels = " << CommonLevels << "\n");
@ -3238,36 +3235,62 @@ Dependence *DependenceAnalysis::depends(Instruction *Src,
FullDependence Result(Src, Dst, PossiblyLoopIndependent, CommonLevels);
++TotalArrayPairs;
// classify subscript pairs
unsigned Pairs = SrcGEP->idx_end() - SrcGEP->idx_begin();
SmallVector<Subscript, 4> Pair(Pairs);
for (unsigned SI = 0; SI < Pairs; ++SI) {
Pair[SI].Loops.resize(MaxLevels + 1);
Pair[SI].GroupLoops.resize(MaxLevels + 1);
Pair[SI].Group.resize(Pairs);
// See if there are GEPs we can use.
bool UsefulGEP = false;
GEPOperator *SrcGEP = dyn_cast<GEPOperator>(SrcPtr);
GEPOperator *DstGEP = dyn_cast<GEPOperator>(DstPtr);
if (SrcGEP && DstGEP &&
SrcGEP->getPointerOperandType() == DstGEP->getPointerOperandType()) {
const SCEV *SrcPtrSCEV = SE->getSCEV(SrcGEP->getPointerOperand());
const SCEV *DstPtrSCEV = SE->getSCEV(DstGEP->getPointerOperand());
DEBUG(dbgs() << " SrcPtrSCEV = " << *SrcPtrSCEV << "\n");
DEBUG(dbgs() << " DstPtrSCEV = " << *DstPtrSCEV << "\n");
UsefulGEP =
isLoopInvariant(SrcPtrSCEV, LI->getLoopFor(Src->getParent())) &&
isLoopInvariant(DstPtrSCEV, LI->getLoopFor(Dst->getParent()));
}
Pairs = 0;
for (GEPOperator::const_op_iterator SrcIdx = SrcGEP->idx_begin(),
SrcEnd = SrcGEP->idx_end(),
DstIdx = DstGEP->idx_begin(),
DstEnd = DstGEP->idx_end();
SrcIdx != SrcEnd && DstIdx != DstEnd;
++SrcIdx, ++DstIdx, ++Pairs) {
Pair[Pairs].Src = SE->getSCEV(*SrcIdx);
Pair[Pairs].Dst = SE->getSCEV(*DstIdx);
removeMatchingExtensions(&Pair[Pairs]);
Pair[Pairs].Classification =
classifyPair(Pair[Pairs].Src, LI->getLoopFor(Src->getParent()),
Pair[Pairs].Dst, LI->getLoopFor(Dst->getParent()),
Pair[Pairs].Loops);
Pair[Pairs].GroupLoops = Pair[Pairs].Loops;
Pair[Pairs].Group.set(Pairs);
DEBUG(dbgs() << " subscript " << Pairs << "\n");
DEBUG(dbgs() << "\tsrc = " << *Pair[Pairs].Src << "\n");
DEBUG(dbgs() << "\tdst = " << *Pair[Pairs].Dst << "\n");
DEBUG(dbgs() << "\tclass = " << Pair[Pairs].Classification << "\n");
unsigned Pairs = UsefulGEP ? SrcGEP->idx_end() - SrcGEP->idx_begin() : 1;
SmallVector<Subscript, 4> Pair(Pairs);
if (UsefulGEP) {
DEBUG(dbgs() << " using GEPs\n");
unsigned P = 0;
for (GEPOperator::const_op_iterator SrcIdx = SrcGEP->idx_begin(),
SrcEnd = SrcGEP->idx_end(),
DstIdx = DstGEP->idx_begin();
SrcIdx != SrcEnd;
++SrcIdx, ++DstIdx, ++P) {
Pair[P].Src = SE->getSCEV(*SrcIdx);
Pair[P].Dst = SE->getSCEV(*DstIdx);
}
}
else {
DEBUG(dbgs() << " ignoring GEPs\n");
const SCEV *SrcSCEV = SE->getSCEV(SrcPtr);
const SCEV *DstSCEV = SE->getSCEV(DstPtr);
DEBUG(dbgs() << " SrcSCEV = " << *SrcSCEV << "\n");
DEBUG(dbgs() << " DstSCEV = " << *DstSCEV << "\n");
Pair[0].Src = SrcSCEV;
Pair[0].Dst = DstSCEV;
}
for (unsigned P = 0; P < Pairs; ++P) {
Pair[P].Loops.resize(MaxLevels + 1);
Pair[P].GroupLoops.resize(MaxLevels + 1);
Pair[P].Group.resize(Pairs);
removeMatchingExtensions(&Pair[P]);
Pair[P].Classification =
classifyPair(Pair[P].Src, LI->getLoopFor(Src->getParent()),
Pair[P].Dst, LI->getLoopFor(Dst->getParent()),
Pair[P].Loops);
Pair[P].GroupLoops = Pair[P].Loops;
Pair[P].Group.set(P);
DEBUG(dbgs() << " subscript " << P << "\n");
DEBUG(dbgs() << "\tsrc = " << *Pair[P].Src << "\n");
DEBUG(dbgs() << "\tdst = " << *Pair[P].Dst << "\n");
DEBUG(dbgs() << "\tclass = " << Pair[P].Classification << "\n");
DEBUG(dbgs() << "\tloops = ");
DEBUG(dumpSmallBitVector(Pair[Pairs].Loops));
DEBUG(dumpSmallBitVector(Pair[P].Loops));
}
SmallBitVector Separable(Pairs);
@ -3562,7 +3585,8 @@ Dependence *DependenceAnalysis::depends(Instruction *Src,
// though simplified since we know that the dependence exists.
// It's tedious, since we must go through all propagations, etc.
//
// Care is required to keep this code up to date w.r.t. the code above.
// Care is required to keep this code up to date with respect to the routine
// above, depends().
//
// Generally, the dependence analyzer will be used to build
// a dependence graph for a function (basically a map from instructions
@ -3611,44 +3635,59 @@ const SCEV *DependenceAnalysis::getSplitIteration(const Dependence *Dep,
assert(Dst->mayReadFromMemory() || Dst->mayWriteToMemory());
assert(isLoadOrStore(Src));
assert(isLoadOrStore(Dst));
const Value *SrcPtr = getPointerOperand(Src);
const Value *DstPtr = getPointerOperand(Dst);
Value *SrcPtr = getPointerOperand(Src);
Value *DstPtr = getPointerOperand(Dst);
assert(underlyingObjectsAlias(AA, DstPtr, SrcPtr) ==
AliasAnalysis::MustAlias);
const GEPOperator *SrcGEP = dyn_cast<GEPOperator>(SrcPtr);
const GEPOperator *DstGEP = dyn_cast<GEPOperator>(DstPtr);
assert(SrcGEP);
assert(DstGEP);
assert(SrcGEP->getPointerOperandType() == DstGEP->getPointerOperandType());
// establish loop nesting levels
establishNestingLevels(Src, Dst);
FullDependence Result(Src, Dst, false, CommonLevels);
// classify subscript pairs
unsigned Pairs = SrcGEP->idx_end() - SrcGEP->idx_begin();
SmallVector<Subscript, 4> Pair(Pairs);
for (unsigned SI = 0; SI < Pairs; ++SI) {
Pair[SI].Loops.resize(MaxLevels + 1);
Pair[SI].GroupLoops.resize(MaxLevels + 1);
Pair[SI].Group.resize(Pairs);
// See if there are GEPs we can use.
bool UsefulGEP = false;
GEPOperator *SrcGEP = dyn_cast<GEPOperator>(SrcPtr);
GEPOperator *DstGEP = dyn_cast<GEPOperator>(DstPtr);
if (SrcGEP && DstGEP &&
SrcGEP->getPointerOperandType() == DstGEP->getPointerOperandType()) {
const SCEV *SrcPtrSCEV = SE->getSCEV(SrcGEP->getPointerOperand());
const SCEV *DstPtrSCEV = SE->getSCEV(DstGEP->getPointerOperand());
UsefulGEP =
isLoopInvariant(SrcPtrSCEV, LI->getLoopFor(Src->getParent())) &&
isLoopInvariant(DstPtrSCEV, LI->getLoopFor(Dst->getParent()));
}
Pairs = 0;
for (GEPOperator::const_op_iterator SrcIdx = SrcGEP->idx_begin(),
SrcEnd = SrcGEP->idx_end(),
DstIdx = DstGEP->idx_begin(),
DstEnd = DstGEP->idx_end();
SrcIdx != SrcEnd && DstIdx != DstEnd;
++SrcIdx, ++DstIdx, ++Pairs) {
Pair[Pairs].Src = SE->getSCEV(*SrcIdx);
Pair[Pairs].Dst = SE->getSCEV(*DstIdx);
Pair[Pairs].Classification =
classifyPair(Pair[Pairs].Src, LI->getLoopFor(Src->getParent()),
Pair[Pairs].Dst, LI->getLoopFor(Dst->getParent()),
Pair[Pairs].Loops);
Pair[Pairs].GroupLoops = Pair[Pairs].Loops;
Pair[Pairs].Group.set(Pairs);
unsigned Pairs = UsefulGEP ? SrcGEP->idx_end() - SrcGEP->idx_begin() : 1;
SmallVector<Subscript, 4> Pair(Pairs);
if (UsefulGEP) {
unsigned P = 0;
for (GEPOperator::const_op_iterator SrcIdx = SrcGEP->idx_begin(),
SrcEnd = SrcGEP->idx_end(),
DstIdx = DstGEP->idx_begin();
SrcIdx != SrcEnd;
++SrcIdx, ++DstIdx, ++P) {
Pair[P].Src = SE->getSCEV(*SrcIdx);
Pair[P].Dst = SE->getSCEV(*DstIdx);
}
}
else {
const SCEV *SrcSCEV = SE->getSCEV(SrcPtr);
const SCEV *DstSCEV = SE->getSCEV(DstPtr);
Pair[0].Src = SrcSCEV;
Pair[0].Dst = DstSCEV;
}
for (unsigned P = 0; P < Pairs; ++P) {
Pair[P].Loops.resize(MaxLevels + 1);
Pair[P].GroupLoops.resize(MaxLevels + 1);
Pair[P].Group.resize(Pairs);
removeMatchingExtensions(&Pair[P]);
Pair[P].Classification =
classifyPair(Pair[P].Src, LI->getLoopFor(Src->getParent()),
Pair[P].Dst, LI->getLoopFor(Dst->getParent()),
Pair[P].Loops);
Pair[P].GroupLoops = Pair[P].Loops;
Pair[P].Group.set(P);
}
SmallBitVector Separable(Pairs);

26
test/Analysis/DependenceAnalysis/Banerjee.ll
View File

@ -19,7 +19,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [= =|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc7
%B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ]
@ -70,7 +70,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [* *|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [* *|<]!
for.cond1.preheader.preheader: ; preds = %entry
%0 = add i64 %n, 1
@ -136,7 +136,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [= =|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc8
%B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ]
@ -186,7 +186,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [= =|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc8
%B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ]
@ -236,7 +236,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [= =|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc7
%B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ]
@ -286,7 +286,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [= =|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc7
%B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ]
@ -336,7 +336,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [= =|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc8
%B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ]
@ -386,7 +386,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [= =|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc8
%B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ]
@ -436,7 +436,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [= =|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc8
%B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ]
@ -486,7 +486,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [= =|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc8
%B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ]
@ -537,7 +537,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [= =|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc7
%B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ]
@ -587,7 +587,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [= =|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc7
%B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ]
@ -637,7 +637,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [= =|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc7
%B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ]

32
test/Analysis/DependenceAnalysis/Coupled.ll
View File

@ -18,7 +18,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -54,7 +54,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -90,7 +90,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -128,7 +128,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -166,7 +166,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -205,7 +205,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -246,7 +246,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -282,7 +282,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -318,7 +318,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -355,7 +355,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -393,7 +393,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -431,7 +431,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -469,7 +469,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -506,7 +506,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -543,7 +543,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -580,7 +580,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]

26
test/Analysis/DependenceAnalysis/ExactRDIV.ll
View File

@ -19,7 +19,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -67,7 +67,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -113,7 +113,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -159,7 +159,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -205,7 +205,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -251,7 +251,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -298,7 +298,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -345,7 +345,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -392,7 +392,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -439,7 +439,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [S S|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc5
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc5 ]
@ -488,7 +488,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [S S|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc5
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc5 ]
@ -536,7 +536,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [S S|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc5
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc5 ]
@ -584,7 +584,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [S S|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc5
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc5 ]

28
test/Analysis/DependenceAnalysis/ExactSIV.ll
View File

@ -18,7 +18,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -55,7 +55,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -93,7 +93,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -129,7 +129,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -165,7 +165,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -201,7 +201,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -237,7 +237,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -273,7 +273,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -309,7 +309,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -345,7 +345,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -381,7 +381,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -417,7 +417,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -453,7 +453,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -489,7 +489,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]

20
test/Analysis/DependenceAnalysis/GCD.ll
View File

@ -19,7 +19,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [* *|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc8
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc8 ]
@ -71,7 +71,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [* *|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc9
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc9 ]
@ -124,7 +124,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [* *|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc9
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc9 ]
@ -177,7 +177,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [* *|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc7
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc7 ]
@ -228,7 +228,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [* *|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc17
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc17 ]
@ -289,7 +289,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [* *|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc17
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc17 ]
@ -351,7 +351,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [* *|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [* *|<]!
for.cond1.preheader.preheader: ; preds = %entry
br label %for.cond1.preheader
@ -422,7 +422,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [* *|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [* *|<]!
for.cond1.preheader.preheader: ; preds = %entry
br label %for.cond1.preheader
@ -505,7 +505,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [* *|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [* *|<]!
for.cond1.preheader.preheader: ; preds = %entry
br label %for.cond1.preheader
@ -583,7 +583,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [* *|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [* *|<]!
for.cond1.preheader.preheader: ; preds = %entry
br label %for.cond1.preheader

67
test/Analysis/DependenceAnalysis/Preliminary.ll
View File

@ -13,7 +13,7 @@ define i32 @p0(i32 %n, i32* %A, i32* %B) nounwind uwtable ssp {
entry:
store i32 %n, i32* %A, align 4
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input!
@ -31,7 +31,7 @@ define i32 @p1(i32 %n, i32* noalias %A, i32* noalias %B) nounwind uwtable ssp {
entry:
store i32 %n, i32* %A, align 4
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output!
; CHECK: da analyze - none!
; CHECK: da analyze - consistent input!
@ -59,7 +59,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0 0 0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [* * *|<]!
for.cond1.preheader.preheader: ; preds = %entry
br label %for.cond1.preheader
@ -168,7 +168,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0 S 0 0 S 0 S S S S 0 0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [* * * * * * * * * * * *|<]!
for.cond1.preheader.preheader: ; preds = %entry
br label %for.cond1.preheader
@ -430,7 +430,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -476,7 +476,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -522,7 +522,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -564,7 +564,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output!
store i32 0, i32* %arrayidx, align 4
%conv = sext i8 %n to i64
@ -591,7 +591,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output!
%conv = sext i16 %n to i64
%add = add i64 %conv, 1
@ -617,7 +617,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output!
%add = add nsw i32 %n, 1
%idxprom1 = sext i32 %add to i64
@ -643,7 +643,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output!
%add = add i32 %n, 1
%idxprom1 = zext i32 %add to i64
@ -652,3 +652,48 @@ entry:
store i32 %0, i32* %B, align 4
ret void
}
;;typedef struct { int v; } S;
;;
;;void f(S *s, unsigned size) {
;; S *i = s, *e = s + size - 1;
;; while (i != e) {
;; *i = *(i + 1);
;; ++i;
%struct.S = type { i32 }
define void @f(%struct.S* %s, i32 %size) nounwind uwtable ssp {
entry:
%idx.ext = zext i32 %size to i64
%add.ptr.sum = add i64 %idx.ext, -1
%add.ptr1 = getelementptr inbounds %struct.S* %s, i64 %add.ptr.sum
%cmp1 = icmp eq i64 %add.ptr.sum, 0
br i1 %cmp1, label %while.end, label %while.body.preheader
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - consistent anti [1]!
; CHECK: da analyze - consistent output [0|<]!
while.body.preheader: ; preds = %entry
br label %while.body
while.body: ; preds = %while.body.preheader, %while.body
%i.02 = phi %struct.S* [ %incdec.ptr, %while.body ], [ %s, %while.body.preheader ]
%0 = getelementptr inbounds %struct.S* %i.02, i64 1, i32 0
%1 = load i32* %0, align 4
%2 = getelementptr inbounds %struct.S* %i.02, i64 0, i32 0
store i32 %1, i32* %2, align 4
%incdec.ptr = getelementptr inbounds %struct.S* %i.02, i64 1
%cmp = icmp eq %struct.S* %incdec.ptr, %add.ptr1
br i1 %cmp, label %while.end.loopexit, label %while.body
while.end.loopexit: ; preds = %while.body
br label %while.end
while.end: ; preds = %while.end.loopexit, %entry
ret void
}
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind

20
test/Analysis/DependenceAnalysis/Propagating.ll
View File

@ -19,7 +19,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0 0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc9
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc9 ]
@ -69,7 +69,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0 0 0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= = =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc18
%B.addr.06 = phi i32* [ %B, %entry ], [ %scevgep7, %for.inc18 ]
@ -131,7 +131,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0 0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc8
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc8 ]
@ -181,7 +181,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0 0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc9
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc9 ]
@ -232,7 +232,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0 0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc11
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc11 ]
@ -285,7 +285,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0 0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc13
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc13 ]
@ -338,7 +338,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0 0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc12
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc12 ]
@ -392,7 +392,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0 0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc14
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc14 ]
@ -447,7 +447,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0 0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc10
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc10 ]
@ -498,7 +498,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [S 0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc10
%B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc10 ]

8
test/Analysis/DependenceAnalysis/Separability.ll
View File

@ -21,7 +21,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [0 * S *|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= = = =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc22
%B.addr.08 = phi i32* [ %B, %entry ], [ %scevgep11, %for.inc22 ]
@ -96,7 +96,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [0 * S *|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= = = =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc22
%B.addr.08 = phi i32* [ %B, %entry ], [ %scevgep11, %for.inc22 ]
@ -170,7 +170,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [0 * * 0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= = = =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc26
%B.addr.08 = phi i32* [ %B, %entry ], [ %scevgep11, %for.inc26 ]
@ -244,7 +244,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - input [0 * * 0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [= = = =|<]!
for.cond1.preheader: ; preds = %entry, %for.inc27
%B.addr.08 = phi i32* [ %B, %entry ], [ %scevgep11, %for.inc27 ]

22
test/Analysis/DependenceAnalysis/StrongSIV.ll
View File

@ -19,7 +19,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -61,7 +61,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
%0 = sext i32 %n to i64
@ -104,7 +104,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -146,7 +146,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -188,7 +188,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -223,7 +223,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -258,7 +258,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -295,7 +295,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -332,7 +332,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -368,7 +368,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -411,7 +411,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]

14
test/Analysis/DependenceAnalysis/SymbolicRDIV.ll
View File

@ -20,7 +20,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -82,7 +82,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -146,7 +146,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -208,7 +208,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -268,7 +268,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -329,7 +329,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -390,7 +390,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [S S|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - output [* *|<]!
for.cond1.preheader.preheader: ; preds = %entry
br label %for.cond1.preheader

18
test/Analysis/DependenceAnalysis/SymbolicSIV.ll
View File

@ -19,7 +19,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -64,7 +64,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -111,7 +111,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -156,7 +156,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -202,7 +202,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -247,7 +247,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -295,7 +295,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -339,7 +339,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -388,7 +388,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body

14
test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll
View File

@ -22,7 +22,7 @@ for.body.preheader: ; preds = %entry
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %for.body.preheader, %for.body
%i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
@ -65,7 +65,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -108,7 +108,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -143,7 +143,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -178,7 +178,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -214,7 +214,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -258,7 +258,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]

14
test/Analysis/DependenceAnalysis/WeakZeroDstSIV.ll
View File

@ -18,7 +18,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [S|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -55,7 +55,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [S|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -97,7 +97,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [S|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -132,7 +132,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [S|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -167,7 +167,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [S|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -202,7 +202,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [S|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -238,7 +238,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [S|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body

14
test/Analysis/DependenceAnalysis/WeakZeroSrcSIV.ll
View File

@ -18,7 +18,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -55,7 +55,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body
@ -97,7 +97,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -132,7 +132,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -167,7 +167,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -202,7 +202,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body: ; preds = %entry, %for.body
%i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
@ -238,7 +238,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input [0|<]!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output [0|<]!
for.body.preheader: ; preds = %entry
br label %for.body

6
test/Analysis/DependenceAnalysis/ZIV.ll
View File

@ -19,7 +19,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output!
%add1 = add i64 %n, 1
%arrayidx2 = getelementptr inbounds i32* %A, i64 %add1
@ -42,7 +42,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output!
%add = add i64 %n, 1
%arrayidx1 = getelementptr inbounds i32* %A, i64 %add
@ -65,7 +65,7 @@ entry:
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent input!
; CHECK: da analyze - confused!
; CHECK: da analyze - confused!
; CHECK: da analyze - consistent output!
%arrayidx1 = getelementptr inbounds i32* %A, i64 %m
%0 = load i32* %arrayidx1, align 4