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

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

1 files changed, 6 insertions, 6 deletions

diff --git a/lib/Transforms/Utils/InlineFunction.cpp b/lib/Transforms/Utils/InlineFunction.cpp
index fad5675..b84de05 100644
--- a/lib/Transforms/Utils/InlineFunction.cpp
+++ b/lib/Transforms/Utils/InlineFunction.cpp
@@ -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];