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[EH] Rename llvm.x86.seh.recoverfp intrinsic to llvm.eh.recoverfp

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Summary:
Make recoverfp intrinsic target-independent so that it can be implemented for AArch64, etc.
Refer D53541 for the context. Clang counterpart D56748.

Reviewers: rnk, efriedma

Reviewed By: rnk, efriedma

Subscribers: javed.absar, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D56747

llvm-svn: 351281
This commit is contained in:
Mandeep Singh Grang 2019-01-16 00:37:13 +00:00
parent 9e620d40be
commit 61135b4791
16 changed files with 37 additions and 32 deletions
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7
include/llvm/IR/Intrinsics.td
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@ -414,6 +414,13 @@ def int_localescape : Intrinsic<[], [llvm_vararg_ty]>;
def int_localrecover : Intrinsic<[llvm_ptr_ty],
[llvm_ptr_ty, llvm_ptr_ty, llvm_i32_ty],
[IntrNoMem]>;
// Given the frame pointer passed into an SEH filter function, returns a
// pointer to the local variable area suitable for use with llvm.localrecover.
def int_eh_recoverfp : Intrinsic<[llvm_ptr_ty],
[llvm_ptr_ty, llvm_ptr_ty],
[IntrNoMem]>;
// Note: we treat stacksave/stackrestore as writemem because we don't otherwise
// model their dependencies on allocas.
def int_stacksave : Intrinsic<[llvm_ptr_ty]>,

6
include/llvm/IR/IntrinsicsX86.td
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@ -27,12 +27,6 @@ let TargetPrefix = "x86" in {
// Marks the EH guard slot node created in LLVM IR prior to code generation.
def int_x86_seh_ehguard : Intrinsic<[], [llvm_ptr_ty], []>;
// Given a pointer to the end of an EH registration object, returns the true
// parent frame address that can be used with llvm.localrecover.
def int_x86_seh_recoverfp : Intrinsic<[llvm_ptr_ty],
[llvm_ptr_ty, llvm_ptr_ty],
[IntrNoMem]>;
}
//===----------------------------------------------------------------------===//

2
lib/CodeGen/AsmPrinter/WinException.cpp
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@ -546,7 +546,7 @@ void WinException::emitCSpecificHandlerTable(const MachineFunction *MF) {
};
// Emit a label assignment with the SEH frame offset so we can use it for
// llvm.x86.seh.recoverfp.
// llvm.eh.recoverfp.
StringRef FLinkageName =
GlobalValue::dropLLVMManglingEscape(MF->getFunction().getName());
MCSymbol *ParentFrameOffset =

2
lib/CodeGen/AsmPrinter/WinException.h
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@ -68,7 +68,7 @@ class LLVM_LIBRARY_VISIBILITY WinException : public EHStreamer {
const MachineFunction *MF, const WinEHFuncInfo &FuncInfo,
SmallVectorImpl<std::pair<const MCExpr *, int>> &IPToStateTable);
/// Emits the label used with llvm.x86.seh.recoverfp, which is used by
/// Emits the label used with llvm.eh.recoverfp, which is used by
/// outlined funclets.
void emitEHRegistrationOffsetLabel(const WinEHFuncInfo &FuncInfo,
StringRef FLinkageName);

4
lib/IR/AutoUpgrade.cpp
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@ -544,6 +544,10 @@ static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) {
NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::thread_pointer);
return true;
}
if (Name == "x86.seh.recoverfp") {
NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::eh_recoverfp);
return true;
}
break;
}

4
lib/Target/X86/X86ISelLowering.cpp
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@ -22260,14 +22260,14 @@ SDValue X86TargetLowering::LowerINTRINSIC_WO_CHAIN(SDValue Op,
return DAG.getNode(X86ISD::Wrapper, dl, VT, Result);
}
case Intrinsic::x86_seh_recoverfp: {
case Intrinsic::eh_recoverfp: {
SDValue FnOp = Op.getOperand(1);
SDValue IncomingFPOp = Op.getOperand(2);
GlobalAddressSDNode *GSD = dyn_cast<GlobalAddressSDNode>(FnOp);
auto *Fn = dyn_cast_or_null<Function>(GSD ? GSD->getGlobal() : nullptr);
if (!Fn)
report_fatal_error(
"llvm.x86.seh.recoverfp must take a function as the first argument");
"llvm.eh.recoverfp must take a function as the first argument");
return recoverFramePointer(DAG, Fn, IncomingFPOp);
}

4
test/CodeGen/WinEH/wineh-statenumbering.ll
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@ -180,7 +180,7 @@ if.end: ; preds = %if.then, %__except.
define internal i32 @"\01?filt$0@0@required_state_store@@"() {
entry:
%0 = tail call i8* @llvm.frameaddress(i32 1)
%1 = tail call i8* @llvm.x86.seh.recoverfp(i8* bitcast (void (i1)* @required_state_store to i8*), i8* %0)
%1 = tail call i8* @llvm.eh.recoverfp(i8* bitcast (void (i1)* @required_state_store to i8*), i8* %0)
%2 = tail call i8* @llvm.localrecover(i8* bitcast (void (i1)* @required_state_store to i8*), i8* %1, i32 0)
%__exception_code = bitcast i8* %2 to i32*
%3 = getelementptr inbounds i8, i8* %0, i32 -20
@ -203,7 +203,7 @@ declare i32 @__CxxFrameHandler3(...)
declare i8* @llvm.frameaddress(i32)
declare i8* @llvm.x86.seh.recoverfp(i8*, i8*)
declare i8* @llvm.eh.recoverfp(i8*, i8*)
declare i8* @llvm.localrecover(i8*, i8*, i32)

4
test/CodeGen/X86/seh-catch-all-win32.ll
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@ -12,7 +12,7 @@ declare i32 @llvm.eh.typeid.for(i8*)
declare i8* @llvm.frameaddress(i32)
declare i8* @llvm.localrecover(i8*, i8*, i32)
declare void @llvm.localescape(...)
declare i8* @llvm.x86.seh.recoverfp(i8*, i8*)
declare i8* @llvm.eh.recoverfp(i8*, i8*)
define i32 @main() personality i8* bitcast (i32 (...)* @_except_handler3 to i8*) {
entry:
@ -37,7 +37,7 @@ __try.cont: ; preds = %entry, %__except
define internal i32 @"filt$main"() {
entry:
%ebp = tail call i8* @llvm.frameaddress(i32 1)
%parentfp = tail call i8* @llvm.x86.seh.recoverfp(i8* bitcast (i32 ()* @main to i8*), i8* %ebp)
%parentfp = tail call i8* @llvm.eh.recoverfp(i8* bitcast (i32 ()* @main to i8*), i8* %ebp)
%code.i8 = tail call i8* @llvm.localrecover(i8* bitcast (i32 ()* @main to i8*), i8* %parentfp, i32 0)
%__exceptioncode = bitcast i8* %code.i8 to i32*
%info.addr = getelementptr inbounds i8, i8* %ebp, i32 -20

6
test/CodeGen/X86/seh-filter-no-personality.ll
View File

@ -1,10 +1,10 @@
; RUN: llc -mtriple=i686-windows-msvc < %s | FileCheck %s
; Mostly make sure that llvm.x86.seh.recoverfp doesn't crash if the parent
; Mostly make sure that llvm.eh.recoverfp doesn't crash if the parent
; function lacks a personality.
declare i8* @llvm.frameaddress(i32)
declare i8* @llvm.x86.seh.recoverfp(i8*, i8*)
declare i8* @llvm.eh.recoverfp(i8*, i8*)
define i32 @main() {
entry:
@ -14,7 +14,7 @@ entry:
define internal i32 @"filt$main"() {
entry:
%ebp = tail call i8* @llvm.frameaddress(i32 1)
%parentfp = tail call i8* @llvm.x86.seh.recoverfp(i8* bitcast (i32 ()* @main to i8*), i8* %ebp)
%parentfp = tail call i8* @llvm.eh.recoverfp(i8* bitcast (i32 ()* @main to i8*), i8* %ebp)
%info.addr = getelementptr inbounds i8, i8* %ebp, i32 -20
%0 = bitcast i8* %info.addr to i32***
%1 = load i32**, i32*** %0, align 4

4
test/CodeGen/X86/seh-no-invokes.ll
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@ -38,7 +38,7 @@ __try.cont:
define internal i32 @"\01?filt$0@0@f@@"() #1 {
entry:
%0 = tail call i8* @llvm.frameaddress(i32 1)
%1 = tail call i8* @llvm.x86.seh.recoverfp(i8* bitcast (void ()* @f to i8*), i8* %0)
%1 = tail call i8* @llvm.eh.recoverfp(i8* bitcast (void ()* @f to i8*), i8* %0)
%2 = tail call i8* @llvm.localrecover(i8* bitcast (void ()* @f to i8*), i8* %1, i32 0)
%__exception_code = bitcast i8* %2 to i32*
%3 = getelementptr inbounds i8, i8* %0, i32 -20
@ -55,7 +55,7 @@ entry:
declare i8* @llvm.frameaddress(i32) #2
; Function Attrs: nounwind readnone
declare i8* @llvm.x86.seh.recoverfp(i8*, i8*) #2
declare i8* @llvm.eh.recoverfp(i8*, i8*) #2
; Function Attrs: nounwind readnone
declare i8* @llvm.localrecover(i8*, i8*, i32) #2

4
test/CodeGen/X86/seh-stack-realign.ll
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@ -12,7 +12,7 @@ declare i32 @llvm.eh.typeid.for(i8*)
declare i8* @llvm.frameaddress(i32)
declare i8* @llvm.localrecover(i8*, i8*, i32)
declare void @llvm.localescape(...)
declare i8* @llvm.x86.seh.recoverfp(i8*, i8*)
declare i8* @llvm.eh.recoverfp(i8*, i8*)
define i32 @main() personality i8* bitcast (i32 (...)* @_except_handler3 to i8*) {
entry:
@ -38,7 +38,7 @@ __try.cont: ; preds = %entry, %__except
define internal i32 @"filt$main"() {
entry:
%ebp = tail call i8* @llvm.frameaddress(i32 1)
%parentfp = tail call i8* @llvm.x86.seh.recoverfp(i8* bitcast (i32 ()* @main to i8*), i8* %ebp)
%parentfp = tail call i8* @llvm.eh.recoverfp(i8* bitcast (i32 ()* @main to i8*), i8* %ebp)
%code.i8 = tail call i8* @llvm.localrecover(i8* bitcast (i32 ()* @main to i8*), i8* %parentfp, i32 0)
%__exceptioncode = bitcast i8* %code.i8 to i32*
%info.addr = getelementptr inbounds i8, i8* %ebp, i32 -20

6
test/CodeGen/X86/win32-seh-catchpad.ll
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@ -53,7 +53,7 @@ invoke.cont: ; preds = %entry
define internal i32 @try_except_filter_catchall() #0 {
entry:
%0 = call i8* @llvm.frameaddress(i32 1)
%1 = call i8* @llvm.x86.seh.recoverfp(i8* bitcast (void ()* @try_except to i8*), i8* %0)
%1 = call i8* @llvm.eh.recoverfp(i8* bitcast (void ()* @try_except to i8*), i8* %0)
%2 = call i8* @llvm.localrecover(i8* bitcast (void ()* @try_except to i8*), i8* %1, i32 0)
%__exception_code = bitcast i8* %2 to i32*
%3 = getelementptr inbounds i8, i8* %0, i32 -20
@ -169,7 +169,7 @@ declare void @crash() #0
define internal i32 @nested_exceptions_filter_catchall() #0 {
entry:
%0 = call i8* @llvm.frameaddress(i32 1)
%1 = call i8* @llvm.x86.seh.recoverfp(i8* bitcast (void ()* @nested_exceptions to i8*), i8* %0)
%1 = call i8* @llvm.eh.recoverfp(i8* bitcast (void ()* @nested_exceptions to i8*), i8* %0)
%2 = call i8* @llvm.localrecover(i8* bitcast (void ()* @nested_exceptions to i8*), i8* %1, i32 0)
%__exception_code3 = bitcast i8* %2 to i32*
%3 = getelementptr inbounds i8, i8* %0, i32 -20
@ -213,7 +213,7 @@ __except:
declare i8* @llvm.frameaddress(i32) #1
; Function Attrs: nounwind readnone
declare i8* @llvm.x86.seh.recoverfp(i8*, i8*) #1
declare i8* @llvm.eh.recoverfp(i8*, i8*) #1
; Function Attrs: nounwind readnone
declare i8* @llvm.localrecover(i8*, i8*, i32) #1

4
test/DebugInfo/COFF/frameproc-flags.ll
View File

@ -216,7 +216,7 @@ __try.cont: ; preds = %entry, %__except.re
define internal i32 @"?filt$0@0@seh@@"() #8 !dbg !74 {
entry:
%0 = tail call i8* @llvm.frameaddress(i32 1)
%1 = tail call i8* @llvm.x86.seh.recoverfp(i8* bitcast (void ()* @seh to i8*), i8* %0)
%1 = tail call i8* @llvm.eh.recoverfp(i8* bitcast (void ()* @seh to i8*), i8* %0)
%2 = tail call i8* @llvm.localrecover(i8* bitcast (void ()* @seh to i8*), i8* %1, i32 0)
%__exception_code = bitcast i8* %2 to i32*
%3 = getelementptr inbounds i8, i8* %0, i32 -20, !dbg !76
@ -233,7 +233,7 @@ entry:
declare i8* @llvm.frameaddress(i32) #9
; Function Attrs: nounwind readnone
declare i8* @llvm.x86.seh.recoverfp(i8*, i8*) #9
declare i8* @llvm.eh.recoverfp(i8*, i8*) #9
; Function Attrs: nounwind readnone
declare i8* @llvm.localrecover(i8*, i8*, i32) #9

4
test/Instrumentation/AddressSanitizer/localescape.ll
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@ -6,7 +6,7 @@ target triple = "i686-pc-windows-msvc18.0.0"
declare i32 @llvm.eh.typeid.for(i8*) #2
declare i8* @llvm.frameaddress(i32)
declare i8* @llvm.x86.seh.recoverfp(i8*, i8*)
declare i8* @llvm.eh.recoverfp(i8*, i8*)
declare i8* @llvm.localrecover(i8*, i8*, i32)
declare void @llvm.localescape(...) #1
@ -56,7 +56,7 @@ eh.resume: ; preds = %lpad
define internal i32 @"\01?filt$0@0@main@@"() #1 {
entry:
%0 = tail call i8* @llvm.frameaddress(i32 1)
%1 = tail call i8* @llvm.x86.seh.recoverfp(i8* bitcast (i32 ()* @main to i8*), i8* %0)
%1 = tail call i8* @llvm.eh.recoverfp(i8* bitcast (i32 ()* @main to i8*), i8* %0)
%2 = tail call i8* @llvm.localrecover(i8* bitcast (i32 ()* @main to i8*), i8* %1, i32 0)
%__exception_code = bitcast i8* %2 to i32*
%3 = getelementptr inbounds i8, i8* %0, i32 -20

4
test/Instrumentation/SanitizerCoverage/seh.ll
View File

@ -7,7 +7,7 @@ target triple = "i686-pc-windows-msvc18.0.0"
declare i32 @llvm.eh.typeid.for(i8*) #2
declare i8* @llvm.frameaddress(i32)
declare i8* @llvm.x86.seh.recoverfp(i8*, i8*)
declare i8* @llvm.eh.recoverfp(i8*, i8*)
declare i8* @llvm.localrecover(i8*, i8*, i32)
declare void @llvm.localescape(...) #1
@ -55,7 +55,7 @@ eh.resume: ; preds = %lpad
define internal i32 @"\01?filt$0@0@main@@"() #1 {
entry:
%0 = tail call i8* @llvm.frameaddress(i32 1)
%1 = tail call i8* @llvm.x86.seh.recoverfp(i8* bitcast (i32 ()* @main to i8*), i8* %0)
%1 = tail call i8* @llvm.eh.recoverfp(i8* bitcast (i32 ()* @main to i8*), i8* %0)
%2 = tail call i8* @llvm.localrecover(i8* bitcast (i32 ()* @main to i8*), i8* %1, i32 0)
%__exception_code = bitcast i8* %2 to i32*
%3 = getelementptr inbounds i8, i8* %0, i32 -20

4
test/Transforms/LCSSA/avoid-intrinsics-in-catchswitch.ll
View File

@ -85,7 +85,7 @@ declare %class.f* @"\01??0f@@QEAA@H@Z"(%class.f* returned, i32) unnamed_addr
define internal i32 @"\01?filt$0@0@m@@"(i8* %exception_pointers, i8* %frame_pointer) personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*) {
entry:
%0 = tail call i8* @llvm.x86.seh.recoverfp(i8* bitcast (i32 ()* @"\01?m@@YAJXZ" to i8*), i8* %frame_pointer)
%0 = tail call i8* @llvm.eh.recoverfp(i8* bitcast (i32 ()* @"\01?m@@YAJXZ" to i8*), i8* %frame_pointer)
%1 = tail call i8* @llvm.localrecover(i8* bitcast (i32 ()* @"\01?m@@YAJXZ" to i8*), i8* %0, i32 0)
%2 = tail call i8* @llvm.localrecover(i8* bitcast (i32 ()* @"\01?m@@YAJXZ" to i8*), i8* %0, i32 1)
%status = bitcast i8* %2 to i32*
@ -112,7 +112,7 @@ ehcleanup: ; preds = %entry
cleanupret from %9 unwind to caller
}
declare i8* @llvm.x86.seh.recoverfp(i8*, i8*)
declare i8* @llvm.eh.recoverfp(i8*, i8*)
declare i8* @llvm.localrecover(i8*, i8*, i32)
declare i32 @"\01?j@@YAJVf@@JPEAUk@@PEAH@Z"(i8, i32, %struct.k*, i32*) local_unnamed_addr
declare i32 @__C_specific_handler(...)