<div dir="ltr">Nadav,<div><br></div><div style>Looks like the debug info bot is still broken. Can you take a look and see what you ended up changing? For the record the particular tests are these:</div><div style><br></div>
gdb.cp/cp-blocks-linetables.exp: Fifth next <div>gdb.cp/cp-blocks-linetables.exp: Sixth next</div><div><br></div><div style>Thanks!</div><div><br></div><div style>-eric</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Sat, Mar 23, 2013 at 2:20 PM, David Blaikie <span dir="ltr"><<a href="mailto:dblaikie@gmail.com" target="_blank">dblaikie@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
This commit may've regressed debug info:<br>
<a href="http://lab.llvm.org:8011/builders/clang-x86_64-darwin10-gdb/builds/1578" target="_blank">http://lab.llvm.org:8011/builders/clang-x86_64-darwin10-gdb/builds/1578</a><br>
<div class="HOEnZb"><div class="h5"><br>
On Fri, Mar 22, 2013 at 11:43 PM, Nadav Rotem <<a href="mailto:nrotem@apple.com">nrotem@apple.com</a>> wrote:<br>
> Author: nadav<br>
> Date: Sat Mar 23 01:43:35 2013<br>
> New Revision: 177819<br>
><br>
> URL: <a href="http://llvm.org/viewvc/llvm-project?rev=177819&view=rev" target="_blank">http://llvm.org/viewvc/llvm-project?rev=177819&view=rev</a><br>
> Log:<br>
> Make clang to mark static stack allocations with lifetime markers to enable a more aggressive stack coloring.<br>
> Patch by John McCall with help by Shuxin Yang.<br>
> rdar://13115369<br>
><br>
><br>
> Added:<br>
> cfe/trunk/test/CodeGen/lifetime2.c<br>
> Modified:<br>
> cfe/trunk/lib/CodeGen/CGDecl.cpp<br>
> cfe/trunk/lib/CodeGen/CGStmt.cpp<br>
> cfe/trunk/lib/CodeGen/CodeGenFunction.cpp<br>
> cfe/trunk/lib/CodeGen/CodeGenFunction.h<br>
> cfe/trunk/lib/CodeGen/CodeGenModule.cpp<br>
> cfe/trunk/lib/CodeGen/CodeGenModule.h<br>
> cfe/trunk/test/CodeGenObjC/arc-blocks.m<br>
> cfe/trunk/test/CodeGenObjC/arc.m<br>
><br>
> Modified: cfe/trunk/lib/CodeGen/CGDecl.cpp<br>
> URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDecl.cpp?rev=177819&r1=177818&r2=177819&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDecl.cpp?rev=177819&r1=177818&r2=177819&view=diff</a><br>
> ==============================================================================<br>
> --- cfe/trunk/lib/CodeGen/CGDecl.cpp (original)<br>
> +++ cfe/trunk/lib/CodeGen/CGDecl.cpp Sat Mar 23 01:43:35 2013<br>
> @@ -452,6 +452,22 @@ namespace {<br>
> CGF.EmitCall(FnInfo, CleanupFn, ReturnValueSlot(), Args);<br>
> }<br>
> };<br>
> +<br>
> + /// A cleanup to call @llvm.lifetime.end.<br>
> + class CallLifetimeEnd : public EHScopeStack::Cleanup {<br>
> + llvm::Value *Addr;<br>
> + llvm::Value *Size;<br>
> + public:<br>
> + CallLifetimeEnd(llvm::Value *addr, llvm::Value *size)<br>
> + : Addr(addr), Size(size) {}<br>
> +<br>
> + void Emit(CodeGenFunction &CGF, Flags flags) {<br>
> + llvm::Value *castAddr = CGF.Builder.CreateBitCast(Addr, CGF.Int8PtrTy);<br>
> + CGF.Builder.CreateCall2(CGF.CGM.getLLVMLifetimeEndFn(),<br>
> + Size, castAddr)<br>
> + ->setDoesNotThrow();<br>
> + }<br>
> + };<br>
> }<br>
><br>
> /// EmitAutoVarWithLifetime - Does the setup required for an automatic<br>
> @@ -756,7 +772,6 @@ static bool shouldUseMemSetPlusStoresToI<br>
> // If a global is all zeros, always use a memset.<br>
> if (isa<llvm::ConstantAggregateZero>(Init)) return true;<br>
><br>
> -<br>
> // If a non-zero global is <= 32 bytes, always use a memcpy. If it is large,<br>
> // do it if it will require 6 or fewer scalar stores.<br>
> // TODO: Should budget depends on the size? Avoiding a large global warrants<br>
> @@ -768,6 +783,20 @@ static bool shouldUseMemSetPlusStoresToI<br>
> canEmitInitWithFewStoresAfterMemset(Init, StoreBudget);<br>
> }<br>
><br>
> +/// Should we use the LLVM lifetime intrinsics for the given local variable?<br>
> +static bool shouldUseLifetimeMarkers(CodeGenFunction &CGF, const VarDecl &D,<br>
> + unsigned Size) {<br>
> + // For now, only in optimized builds.<br>
> + if (CGF.CGM.getCodeGenOpts().OptimizationLevel == 0)<br>
> + return false;<br>
> +<br>
> + // Limit the size of marked objects to 32 bytes. We don't want to increase<br>
> + // compile time by marking tiny objects.<br>
> + unsigned SizeThreshold = 32;<br>
> +<br>
> + return Size > SizeThreshold;<br>
> +}<br>
> +<br>
><br>
> /// EmitAutoVarDecl - Emit code and set up an entry in LocalDeclMap for a<br>
> /// variable declaration with auto, register, or no storage class specifier.<br>
> @@ -870,6 +899,20 @@ CodeGenFunction::EmitAutoVarAlloca(const<br>
> getContext().toCharUnitsFromBits(Target.getPointerAlign(0)));<br>
> Alloc->setAlignment(allocaAlignment.getQuantity());<br>
> DeclPtr = Alloc;<br>
> +<br>
> + // Emit a lifetime intrinsic if meaningful. There's no point<br>
> + // in doing this if we don't have a valid insertion point (?).<br>
> + uint64_t size = CGM.getDataLayout().getTypeAllocSize(LTy);<br>
> + if (HaveInsertPoint() && shouldUseLifetimeMarkers(*this, D, size)) {<br>
> + llvm::Value *sizeV = llvm::ConstantInt::get(Int64Ty, size);<br>
> +<br>
> + emission.SizeForLifetimeMarkers = sizeV;<br>
> + llvm::Value *castAddr = Builder.CreateBitCast(Alloc, Int8PtrTy);<br>
> + Builder.CreateCall2(CGM.getLLVMLifetimeStartFn(), sizeV, castAddr)<br>
> + ->setDoesNotThrow();<br>
> + } else {<br>
> + assert(!emission.useLifetimeMarkers());<br>
> + }<br>
> }<br>
> } else {<br>
> // Targets that don't support recursion emit locals as globals.<br>
> @@ -1215,6 +1258,14 @@ void CodeGenFunction::EmitAutoVarCleanup<br>
><br>
> const VarDecl &D = *emission.Variable;<br>
><br>
> + // Make sure we call @llvm.lifetime.end. This needs to happen<br>
> + // *last*, so the cleanup needs to be pushed *first*.<br>
> + if (emission.useLifetimeMarkers()) {<br>
> + EHStack.pushCleanup<CallLifetimeEnd>(NormalCleanup,<br>
> + emission.getAllocatedAddress(),<br>
> + emission.getSizeForLifetimeMarkers());<br>
> + }<br>
> +<br>
> // Check the type for a cleanup.<br>
> if (QualType::DestructionKind dtorKind = D.getType().isDestructedType())<br>
> emitAutoVarTypeCleanup(emission, dtorKind);<br>
> @@ -1485,6 +1536,22 @@ void CodeGenFunction::pushRegularPartial<br>
> elementType, destroyer);<br>
> }<br>
><br>
> +/// Lazily declare the @llvm.lifetime.start intrinsic.<br>
> +llvm::Constant *CodeGenModule::getLLVMLifetimeStartFn() {<br>
> + if (LifetimeStartFn) return LifetimeStartFn;<br>
> + LifetimeStartFn = llvm::Intrinsic::getDeclaration(&getModule(),<br>
> + llvm::Intrinsic::lifetime_start);<br>
> + return LifetimeStartFn;<br>
> +}<br>
> +<br>
> +/// Lazily declare the @llvm.lifetime.end intrinsic.<br>
> +llvm::Constant *CodeGenModule::getLLVMLifetimeEndFn() {<br>
> + if (LifetimeEndFn) return LifetimeEndFn;<br>
> + LifetimeEndFn = llvm::Intrinsic::getDeclaration(&getModule(),<br>
> + llvm::Intrinsic::lifetime_end);<br>
> + return LifetimeEndFn;<br>
> +}<br>
> +<br>
> namespace {<br>
> /// A cleanup to perform a release of an object at the end of a<br>
> /// function. This is used to balance out the incoming +1 of a<br>
><br>
> Modified: cfe/trunk/lib/CodeGen/CGStmt.cpp<br>
> URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGStmt.cpp?rev=177819&r1=177818&r2=177819&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGStmt.cpp?rev=177819&r1=177818&r2=177819&view=diff</a><br>
> ==============================================================================<br>
> --- cfe/trunk/lib/CodeGen/CGStmt.cpp (original)<br>
> +++ cfe/trunk/lib/CodeGen/CGStmt.cpp Sat Mar 23 01:43:35 2013<br>
> @@ -319,6 +319,12 @@ CodeGenFunction::getJumpDestForLabel(con<br>
> }<br>
><br>
> void CodeGenFunction::EmitLabel(const LabelDecl *D) {<br>
> + // Add this label to the current lexical scope if we're within any<br>
> + // normal cleanups. Jumps "in" to this label --- when permitted by<br>
> + // the language --- may need to be routed around such cleanups.<br>
> + if (EHStack.hasNormalCleanups() && CurLexicalScope)<br>
> + CurLexicalScope->addLabel(D);<br>
> +<br>
> JumpDest &Dest = LabelMap[D];<br>
><br>
> // If we didn't need a forward reference to this label, just go<br>
> @@ -330,16 +336,36 @@ void CodeGenFunction::EmitLabel(const La<br>
> // it from the branch-fixups list.<br>
> } else {<br>
> assert(!Dest.getScopeDepth().isValid() && "already emitted label!");<br>
> - Dest = JumpDest(Dest.getBlock(),<br>
> - EHStack.stable_begin(),<br>
> - Dest.getDestIndex());<br>
> -<br>
> + Dest.setScopeDepth(EHStack.stable_begin());<br>
> ResolveBranchFixups(Dest.getBlock());<br>
> }<br>
><br>
> EmitBlock(Dest.getBlock());<br>
> }<br>
><br>
> +/// Change the cleanup scope of the labels in this lexical scope to<br>
> +/// match the scope of the enclosing context.<br>
> +void CodeGenFunction::LexicalScope::rescopeLabels() {<br>
> + assert(!Labels.empty());<br>
> + EHScopeStack::stable_iterator innermostScope<br>
> + = CGF.EHStack.getInnermostNormalCleanup();<br>
> +<br>
> + // Change the scope depth of all the labels.<br>
> + for (SmallVectorImpl<const LabelDecl*>::const_iterator<br>
> + i = Labels.begin(), e = Labels.end(); i != e; ++i) {<br>
> + assert(CGF.LabelMap.count(*i));<br>
> + JumpDest &dest = CGF.LabelMap.find(*i)->second;<br>
> + assert(dest.getScopeDepth().isValid());<br>
> + assert(innermostScope.encloses(dest.getScopeDepth()));<br>
> + dest.setScopeDepth(innermostScope);<br>
> + }<br>
> +<br>
> + // Reparent the labels if the new scope also has cleanups.<br>
> + if (innermostScope != EHScopeStack::stable_end() && ParentScope) {<br>
> + ParentScope->Labels.append(Labels.begin(), Labels.end());<br>
> + }<br>
> +}<br>
> +<br>
><br>
> void CodeGenFunction::EmitLabelStmt(const LabelStmt &S) {<br>
> EmitLabel(S.getDecl());<br>
><br>
> Modified: cfe/trunk/lib/CodeGen/CodeGenFunction.cpp<br>
> URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenFunction.cpp?rev=177819&r1=177818&r2=177819&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenFunction.cpp?rev=177819&r1=177818&r2=177819&view=diff</a><br>
> ==============================================================================<br>
> --- cfe/trunk/lib/CodeGen/CodeGenFunction.cpp (original)<br>
> +++ cfe/trunk/lib/CodeGen/CodeGenFunction.cpp Sat Mar 23 01:43:35 2013<br>
> @@ -45,7 +45,7 @@ CodeGenFunction::CodeGenFunction(CodeGen<br>
> IndirectBranch(0), SwitchInsn(0), CaseRangeBlock(0), UnreachableBlock(0),<br>
> CXXABIThisDecl(0), CXXABIThisValue(0), CXXThisValue(0),<br>
> CXXStructorImplicitParamDecl(0), CXXStructorImplicitParamValue(0),<br>
> - OutermostConditional(0), TerminateLandingPad(0),<br>
> + OutermostConditional(0), CurLexicalScope(0), TerminateLandingPad(0),<br>
> TerminateHandler(0), TrapBB(0) {<br>
> if (!suppressNewContext)<br>
> CGM.getCXXABI().getMangleContext().startNewFunction();<br>
><br>
> Modified: cfe/trunk/lib/CodeGen/CodeGenFunction.h<br>
> URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenFunction.h?rev=177819&r1=177818&r2=177819&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenFunction.h?rev=177819&r1=177818&r2=177819&view=diff</a><br>
> ==============================================================================<br>
> --- cfe/trunk/lib/CodeGen/CodeGenFunction.h (original)<br>
> +++ cfe/trunk/lib/CodeGen/CodeGenFunction.h Sat Mar 23 01:43:35 2013<br>
> @@ -562,6 +562,11 @@ public:<br>
> EHScopeStack::stable_iterator getScopeDepth() const { return ScopeDepth; }<br>
> unsigned getDestIndex() const { return Index; }<br>
><br>
> + // This should be used cautiously.<br>
> + void setScopeDepth(EHScopeStack::stable_iterator depth) {<br>
> + ScopeDepth = depth;<br>
> + }<br>
> +<br>
> private:<br>
> llvm::BasicBlock *Block;<br>
> EHScopeStack::stable_iterator ScopeDepth;<br>
> @@ -853,6 +858,8 @@ public:<br>
><br>
> class LexicalScope: protected RunCleanupsScope {<br>
> SourceRange Range;<br>
> + SmallVector<const LabelDecl*, 4> Labels;<br>
> + LexicalScope *ParentScope;<br>
><br>
> LexicalScope(const LexicalScope &) LLVM_DELETED_FUNCTION;<br>
> void operator=(const LexicalScope &) LLVM_DELETED_FUNCTION;<br>
> @@ -860,15 +867,23 @@ public:<br>
> public:<br>
> /// \brief Enter a new cleanup scope.<br>
> explicit LexicalScope(CodeGenFunction &CGF, SourceRange Range)<br>
> - : RunCleanupsScope(CGF), Range(Range) {<br>
> + : RunCleanupsScope(CGF), Range(Range), ParentScope(CGF.CurLexicalScope) {<br>
> + CGF.CurLexicalScope = this;<br>
> if (CGDebugInfo *DI = CGF.getDebugInfo())<br>
> DI->EmitLexicalBlockStart(CGF.Builder, Range.getBegin());<br>
> }<br>
><br>
> + void addLabel(const LabelDecl *label) {<br>
> + assert(PerformCleanup && "adding label to dead scope?");<br>
> + Labels.push_back(label);<br>
> + }<br>
> +<br>
> /// \brief Exit this cleanup scope, emitting any accumulated<br>
> /// cleanups.<br>
> ~LexicalScope() {<br>
> - if (PerformCleanup) endLexicalScope();<br>
> + // If we should perform a cleanup, force them now. Note that<br>
> + // this ends the cleanup scope before rescoping any labels.<br>
> + if (PerformCleanup) ForceCleanup();<br>
> }<br>
><br>
> /// \brief Force the emission of cleanups now, instead of waiting<br>
> @@ -880,9 +895,14 @@ public:<br>
><br>
> private:<br>
> void endLexicalScope() {<br>
> + CGF.CurLexicalScope = ParentScope;<br>
> if (CGDebugInfo *DI = CGF.getDebugInfo())<br>
> DI->EmitLexicalBlockEnd(CGF.Builder, Range.getEnd());<br>
> + if (!Labels.empty())<br>
> + rescopeLabels();<br>
> }<br>
> +<br>
> + void rescopeLabels();<br>
> };<br>
><br>
><br>
> @@ -1205,6 +1225,8 @@ private:<br>
> /// temporary should be destroyed conditionally.<br>
> ConditionalEvaluation *OutermostConditional;<br>
><br>
> + /// The current lexical scope.<br>
> + LexicalScope *CurLexicalScope;<br>
><br>
> /// ByrefValueInfoMap - For each __block variable, contains a pair of the LLVM<br>
> /// type as well as the field number that contains the actual data.<br>
> @@ -2001,18 +2023,34 @@ public:<br>
> /// initializer.<br>
> bool IsConstantAggregate;<br>
><br>
> + /// Non-null if we should use lifetime annotations.<br>
> + llvm::Value *SizeForLifetimeMarkers;<br>
> +<br>
> struct Invalid {};<br>
> AutoVarEmission(Invalid) : Variable(0) {}<br>
><br>
> AutoVarEmission(const VarDecl &variable)<br>
> : Variable(&variable), Address(0), NRVOFlag(0),<br>
> - IsByRef(false), IsConstantAggregate(false) {}<br>
> + IsByRef(false), IsConstantAggregate(false),<br>
> + SizeForLifetimeMarkers(0) {}<br>
><br>
> bool wasEmittedAsGlobal() const { return Address == 0; }<br>
><br>
> public:<br>
> static AutoVarEmission invalid() { return AutoVarEmission(Invalid()); }<br>
><br>
> + bool useLifetimeMarkers() const { return SizeForLifetimeMarkers != 0; }<br>
> + llvm::Value *getSizeForLifetimeMarkers() const {<br>
> + assert(useLifetimeMarkers());<br>
> + return SizeForLifetimeMarkers;<br>
> + }<br>
> +<br>
> + /// Returns the raw, allocated address, which is not necessarily<br>
> + /// the address of the object itself.<br>
> + llvm::Value *getAllocatedAddress() const {<br>
> + return Address;<br>
> + }<br>
> +<br>
> /// Returns the address of the object within this declaration.<br>
> /// Note that this does not chase the forwarding pointer for<br>
> /// __block decls.<br>
><br>
> Modified: cfe/trunk/lib/CodeGen/CodeGenModule.cpp<br>
> URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenModule.cpp?rev=177819&r1=177818&r2=177819&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenModule.cpp?rev=177819&r1=177818&r2=177819&view=diff</a><br>
> ==============================================================================<br>
> --- cfe/trunk/lib/CodeGen/CodeGenModule.cpp (original)<br>
> +++ cfe/trunk/lib/CodeGen/CodeGenModule.cpp Sat Mar 23 01:43:35 2013<br>
> @@ -86,6 +86,7 @@ CodeGenModule::CodeGenModule(ASTContext<br>
> NSConcreteGlobalBlock(0), NSConcreteStackBlock(0),<br>
> BlockObjectAssign(0), BlockObjectDispose(0),<br>
> BlockDescriptorType(0), GenericBlockLiteralType(0),<br>
> + LifetimeStartFn(0), LifetimeEndFn(0),<br>
> SanitizerBlacklist(CGO.SanitizerBlacklistFile),<br>
> SanOpts(SanitizerBlacklist.isIn(M) ?<br>
> SanitizerOptions::Disabled : LangOpts.Sanitize) {<br>
><br>
> Modified: cfe/trunk/lib/CodeGen/CodeGenModule.h<br>
> URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenModule.h?rev=177819&r1=177818&r2=177819&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenModule.h?rev=177819&r1=177818&r2=177819&view=diff</a><br>
> ==============================================================================<br>
> --- cfe/trunk/lib/CodeGen/CodeGenModule.h (original)<br>
> +++ cfe/trunk/lib/CodeGen/CodeGenModule.h Sat Mar 23 01:43:35 2013<br>
> @@ -381,6 +381,12 @@ class CodeGenModule : public CodeGenType<br>
> int GlobalUniqueCount;<br>
> } Block;<br>
><br>
> + /// void @llvm.lifetime.start(i64 %size, i8* nocapture <ptr>)<br>
> + llvm::Constant *LifetimeStartFn;<br>
> +<br>
> + /// void @llvm.lifetime.end(i64 %size, i8* nocapture <ptr>)<br>
> + llvm::Constant *LifetimeEndFn;<br>
> +<br>
> GlobalDecl initializedGlobalDecl;<br>
><br>
> llvm::BlackList SanitizerBlacklist;<br>
> @@ -757,6 +763,9 @@ public:<br>
><br>
> ///@}<br>
><br>
> + llvm::Constant *getLLVMLifetimeStartFn();<br>
> + llvm::Constant *getLLVMLifetimeEndFn();<br>
> +<br>
> // UpdateCompleteType - Make sure that this type is translated.<br>
> void UpdateCompletedType(const TagDecl *TD);<br>
><br>
><br>
> Added: cfe/trunk/test/CodeGen/lifetime2.c<br>
> URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/lifetime2.c?rev=177819&view=auto" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/lifetime2.c?rev=177819&view=auto</a><br>
> ==============================================================================<br>
> --- cfe/trunk/test/CodeGen/lifetime2.c (added)<br>
> +++ cfe/trunk/test/CodeGen/lifetime2.c Sat Mar 23 01:43:35 2013<br>
> @@ -0,0 +1,17 @@<br>
> +// RUN: %clang -S -emit-llvm -o - -O2 %s | FileCheck %s -check-prefix=O2<br>
> +// RUN: %clang -S -emit-llvm -o - -O0 %s | FileCheck %s -check-prefix=O0<br>
> +<br>
> +extern int bar(char *A, int n);<br>
> +<br>
> +// O0-NOT: @llvm.lifetime.start<br>
> +int foo (int n) {<br>
> + if (n) {<br>
> +// O2: @llvm.lifetime.start<br>
> + char A[100];<br>
> + return bar(A, 1);<br>
> + } else {<br>
> +// O2: @llvm.lifetime.start<br>
> + char A[100];<br>
> + return bar(A, 2);<br>
> + }<br>
> +}<br>
><br>
> Modified: cfe/trunk/test/CodeGenObjC/arc-blocks.m<br>
> URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenObjC/arc-blocks.m?rev=177819&r1=177818&r2=177819&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenObjC/arc-blocks.m?rev=177819&r1=177818&r2=177819&view=diff</a><br>
> ==============================================================================<br>
> --- cfe/trunk/test/CodeGenObjC/arc-blocks.m (original)<br>
> +++ cfe/trunk/test/CodeGenObjC/arc-blocks.m Sat Mar 23 01:43:35 2013<br>
> @@ -128,7 +128,7 @@ void test4(void) {<br>
> // CHECK-NEXT: call void @_Block_object_dispose(i8* [[T0]], i32 8)<br>
> // CHECK-NEXT: [[T0:%.*]] = load i8** [[SLOT]]<br>
> // CHECK-NEXT: call void @objc_release(i8* [[T0]])<br>
> - // CHECK-NEXT: ret void<br>
> + // CHECK: ret void<br>
><br>
> // CHECK: define internal void @__Block_byref_object_copy_<br>
> // CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]]* {{%.*}}, i32 0, i32 6<br>
> @@ -207,7 +207,7 @@ void test6(void) {<br>
> // CHECK: [[T0:%.*]] = bitcast [[BYREF_T]]* [[VAR]] to i8*<br>
> // CHECK-NEXT: call void @_Block_object_dispose(i8* [[T0]], i32 8)<br>
> // CHECK-NEXT: call void @objc_destroyWeak(i8** [[SLOT]])<br>
> - // CHECK-NEXT: ret void<br>
> + // CHECK: ret void<br>
><br>
> // CHECK: define internal void @__Block_byref_object_copy_<br>
> // CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]]* {{%.*}}, i32 0, i32 6<br>
> @@ -256,14 +256,14 @@ void test7(void) {<br>
> // CHECK: call void @test7_helper(<br>
> // CHECK-NEXT: call void @objc_destroyWeak(i8** {{%.*}})<br>
> // CHECK-NEXT: call void @objc_destroyWeak(i8** [[VAR]])<br>
> - // CHECK-NEXT: ret void<br>
> + // CHECK: ret void<br>
><br>
> // CHECK: define internal void @__test7_block_invoke<br>
> // CHECK: [[SLOT:%.*]] = getelementptr inbounds [[BLOCK_T]]* {{%.*}}, i32 0, i32 5<br>
> // CHECK-NEXT: [[T0:%.*]] = call i8* @objc_loadWeakRetained(i8** [[SLOT]])<br>
> // CHECK-NEXT: call void @test7_consume(i8* [[T0]])<br>
> // CHECK-NEXT: call void @objc_release(i8* [[T0]])<br>
> - // CHECK-NEXT: ret void<br>
> + // CHECK: ret void<br>
><br>
> // CHECK: define internal void @__copy_helper_block_<br>
> // CHECK: getelementptr<br>
> @@ -296,7 +296,7 @@ void test7(void) {<br>
> // CHECK-NEXT: [[T1:%.*]] = load [[TEST8]]** [[D0]]<br>
> // CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST8]]* [[T1]] to i8*<br>
> // CHECK-NEXT: call void @objc_release(i8* [[T2]])<br>
> -// CHECK-NEXT: ret void<br>
> +// CHECK: ret void<br>
><br>
> extern void test8_helper(void (^)(void));<br>
> test8_helper(^{ (void) self; });<br>
> @@ -354,7 +354,7 @@ void test10a(void) {<br>
> // CHECK-NEXT: [[T1:%.*]] = load void ()** [[SLOT]]<br>
> // CHECK-NEXT: [[T2:%.*]] = bitcast void ()* [[T1]] to i8*<br>
> // CHECK-NEXT: call void @objc_release(i8* [[T2]])<br>
> - // CHECK-NEXT: ret void<br>
> + // CHECK: ret void<br>
> }<br>
><br>
> // <rdar://problem/10402698>: do this copy and dispose with<br>
> @@ -374,7 +374,7 @@ void test10a(void) {<br>
> // CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainBlock(i8* [[T1]])<br>
> // CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to void ()*<br>
> // CHECK-NEXT: store void ()* [[T3]], void ()** [[D2]], align 8<br>
> -// CHECK-NEXT: ret void<br>
> +// CHECK: ret void<br>
><br>
> // CHECK: define internal void @__Block_byref_object_dispose<br>
> // CHECK: [[T0:%.*]] = load i8** {{%.*}}<br>
> @@ -418,7 +418,7 @@ void test10b(void) {<br>
> // CHECK-NEXT: [[T1:%.*]] = load void ()** [[SLOT]]<br>
> // CHECK-NEXT: [[T2:%.*]] = bitcast void ()* [[T1]] to i8*<br>
> // CHECK-NEXT: call void @objc_release(i8* [[T2]])<br>
> - // CHECK-NEXT: ret void<br>
> + // CHECK: ret void<br>
> }<br>
><br>
> // rdar://problem/10088932<br>
> @@ -438,7 +438,7 @@ void test11a(void) {<br>
> // CHECK-NEXT: call void @test11_helper(i8* [[T4]])<br>
> // CHECK-NEXT: [[T5:%.*]] = bitcast void ()* [[T3]] to i8*<br>
> // CHECK-NEXT: call void @objc_release(i8* [[T5]])<br>
> - // CHECK-NEXT: ret void<br>
> + // CHECK: ret void<br>
> }<br>
> void test11b(void) {<br>
> int x;<br>
> @@ -456,7 +456,7 @@ void test11b(void) {<br>
> // CHECK-NEXT: store i8* [[T4]], i8** [[B]], align 8<br>
> // CHECK-NEXT: [[T5:%.*]] = load i8** [[B]]<br>
> // CHECK-NEXT: call void @objc_release(i8* [[T5]])<br>
> - // CHECK-NEXT: ret void<br>
> + // CHECK: ret void<br>
> }<br>
><br>
> // rdar://problem/9979150<br>
><br>
> Modified: cfe/trunk/test/CodeGenObjC/arc.m<br>
> URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenObjC/arc.m?rev=177819&r1=177818&r2=177819&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenObjC/arc.m?rev=177819&r1=177818&r2=177819&view=diff</a><br>
> ==============================================================================<br>
> --- cfe/trunk/test/CodeGenObjC/arc.m (original)<br>
> +++ cfe/trunk/test/CodeGenObjC/arc.m Sat Mar 23 01:43:35 2013<br>
> @@ -353,7 +353,7 @@ void test12(void) {<br>
> // CHECK-NEXT: [[T4:%.*]] = load i8** [[Y]]<br>
> // CHECK-NEXT: call void @objc_release(i8* [[T4]]) [[NUW]], !clang.imprecise_release<br>
> // CHECK-NEXT: call void @objc_destroyWeak(i8** [[X]])<br>
> - // CHECK-NEXT: ret void<br>
> + // CHECK: ret void<br>
> }<br>
><br>
> // Indirect consuming calls.<br>
> @@ -460,8 +460,9 @@ void test13(void) {<br>
> void test19() {<br>
> // CHECK: define void @test19()<br>
> // CHECK: [[X:%.*]] = alloca [5 x i8*], align 16<br>
> + // CHECK: call void @llvm.lifetime.start<br>
> // CHECK-NEXT: [[T0:%.*]] = bitcast [5 x i8*]* [[X]] to i8*<br>
> - // CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[T0]], i8 0, i64 40, i32 16, i1 false)<br>
> + // CHECK: call void @llvm.memset.p0i8.i64(i8* [[T0]], i8 0, i64 40, i32 16, i1 false)<br>
> id x[5];<br>
><br>
> extern id test19_helper(void);<br>
><br>
><br>
> _______________________________________________<br>
> cfe-commits mailing list<br>
> <a href="mailto:cfe-commits@cs.uiuc.edu">cfe-commits@cs.uiuc.edu</a><br>
> <a href="http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits" target="_blank">http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits</a><br>
_______________________________________________<br>
cfe-commits mailing list<br>
<a href="mailto:cfe-commits@cs.uiuc.edu">cfe-commits@cs.uiuc.edu</a><br>
<a href="http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits" target="_blank">http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits</a><br>
</div></div></blockquote></div><br></div>