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[WinEH] Cache declarations of frame intrinsics

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239361 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Kleckner 2015-06-08 22:43:32 +00:00
parent dea5078cde
commit 38a2b24c12
1 changed files with 10 additions and 6 deletions
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16
lib/Target/X86/X86WinEHState.cpp
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@ -83,6 +83,9 @@ private:
StructType *EHLinkRegistrationTy = nullptr;
StructType *CXXEHRegistrationTy = nullptr;
StructType *SEHRegistrationTy = nullptr;
Function *FrameRecover = nullptr;
Function *FrameAddress = nullptr;
Function *FrameEscape = nullptr;
// Per-function state
EHPersonality Personality = EHPersonality::Unknown;
@ -109,6 +112,9 @@ char WinEHStatePass::ID = 0;
bool WinEHStatePass::doInitialization(Module &M) {
TheModule = &M;
FrameEscape = Intrinsic::getDeclaration(TheModule, Intrinsic::frameescape);
FrameRecover = Intrinsic::getDeclaration(TheModule, Intrinsic::framerecover);
FrameAddress = Intrinsic::getDeclaration(TheModule, Intrinsic::frameaddress);
return false;
}
@ -118,6 +124,9 @@ bool WinEHStatePass::doFinalization(Module &M) {
EHLinkRegistrationTy = nullptr;
CXXEHRegistrationTy = nullptr;
SEHRegistrationTy = nullptr;
FrameEscape = nullptr;
FrameRecover = nullptr;
FrameAddress = nullptr;
return false;
}
@ -392,10 +401,6 @@ void WinEHStatePass::addCXXStateStores(Function &F, MachineModuleInfo &MMI) {
int RegNodeEscapeIndex = escapeRegNode(F);
// Only insert stores in catch handlers.
Function *FrameRecover =
Intrinsic::getDeclaration(TheModule, Intrinsic::framerecover);
Function *FrameAddress =
Intrinsic::getDeclaration(TheModule, Intrinsic::frameaddress);
Constant *FI8 =
ConstantExpr::getBitCast(&F, Type::getInt8PtrTy(TheModule->getContext()));
for (auto P : FuncInfo.HandlerBaseState) {
@ -437,8 +442,7 @@ int WinEHStatePass::escapeRegNode(Function &F) {
// of the entry block.
IRBuilder<> Builder(&F.getEntryBlock(),
EscapeCall ? EscapeCall : F.getEntryBlock().end());
Builder.CreateCall(
Intrinsic::getDeclaration(TheModule, Intrinsic::frameescape), Args);
Builder.CreateCall(FrameEscape, Args);
if (EscapeCall)
EscapeCall->eraseFromParent();
return Args.size() - 1;