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Add support for disabling llvm.lifetime intrinsics in the AlwaysInliner. These

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are optimization hints, but at -O0 we're not optimizing.  This becomes a problem
when the alwaysinline attribute is abused.
rdar://10921594



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151429 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chad Rosier
2012-02-25 02:56:01 +00:00
parent c69cbd0a74
commit fa086f1f00
7 changed files with 31 additions and 18 deletions
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12
lib/Transforms/Utils/InlineFunction.cpp
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@ -31,11 +31,11 @@
#include "llvm/Support/IRBuilder.h"
using namespace llvm;
bool llvm::InlineFunction(CallInst *CI, InlineFunctionInfo &IFI) {
return InlineFunction(CallSite(CI), IFI);
bool llvm::InlineFunction(CallInst *CI, InlineFunctionInfo &IFI, bool InsertLifetime) {
return InlineFunction(CallSite(CI), IFI, InsertLifetime);
}
bool llvm::InlineFunction(InvokeInst *II, InlineFunctionInfo &IFI) {
return InlineFunction(CallSite(II), IFI);
bool llvm::InlineFunction(InvokeInst *II, InlineFunctionInfo &IFI, bool InsertLifetime) {
return InlineFunction(CallSite(II), IFI, InsertLifetime);
}
namespace {
@ -484,7 +484,7 @@ static void fixupLineNumbers(Function *Fn, Function::iterator FI,
/// instruction 'call B' is inlined, and 'B' calls 'C', then the call to 'C' now
/// exists in the instruction stream. Similarly this will inline a recursive
/// function by one level.
bool llvm::InlineFunction(CallSite CS, InlineFunctionInfo &IFI) {
bool llvm::InlineFunction(CallSite CS, InlineFunctionInfo &IFI, bool InsertLifetime) {
Instruction *TheCall = CS.getInstruction();
assert(TheCall->getParent() && TheCall->getParent()->getParent() &&
"Instruction not in function!");
@ -655,7 +655,7 @@ bool llvm::InlineFunction(CallSite CS, InlineFunctionInfo &IFI) {
// Leave lifetime markers for the static alloca's, scoping them to the
// function we just inlined.
if (!IFI.StaticAllocas.empty()) {
if (InsertLifetime && !IFI.StaticAllocas.empty()) {
IRBuilder<> builder(FirstNewBlock->begin());
for (unsigned ai = 0, ae = IFI.StaticAllocas.size(); ai != ae; ++ai) {
AllocaInst *AI = IFI.StaticAllocas[ai];