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By default, llvm.setjmp/llvm.longjmp intrinsics get lowered to their libc counterparts

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11483 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-02-15 22:24:51 +00:00
parent 860a16143c
commit 9b700f7951
2 changed files with 30 additions and 6 deletions
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18
lib/CodeGen/IntrinsicLowering.cpp
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@ -81,13 +81,25 @@ void DefaultIntrinsicLowering::LowerIntrinsicCall(CallInst *CI) {
// never optimized (ie, right out of the CFE), or if it has been hacked on
// by the lowerinvoke pass. In both cases, the right thing to do is to
// convert the call to an explicit setjmp or longjmp call.
case Intrinsic::setjmp:
case Intrinsic::sigsetjmp:
case Intrinsic::setjmp: {
static Function *SetjmpFCache = 0;
Value *V = ReplaceCallWith("setjmp", CI, CI->op_begin()+1, CI->op_end(),
Type::IntTy, SetjmpFCache);
if (CI->getType() != Type::VoidTy)
CI->replaceAllUsesWith(Constant::getNullValue(CI->getType()));
CI->replaceAllUsesWith(V);
break;
}
case Intrinsic::sigsetjmp:
if (CI->getType() != Type::VoidTy)
CI->replaceAllUsesWith(Constant::getNullValue(CI->getType()));
break;
case Intrinsic::longjmp:
static Function *LongjmpFCache = 0;
ReplaceCallWith("longjmp", CI, CI->op_begin()+1, CI->op_end(),
Type::VoidTy, LongjmpFCache);
break;
case Intrinsic::siglongjmp:
// Insert the call to abort
static Function *AbortFCache = 0;

18
lib/VMCore/IntrinsicLowering.cpp
View File

@ -81,13 +81,25 @@ void DefaultIntrinsicLowering::LowerIntrinsicCall(CallInst *CI) {
// never optimized (ie, right out of the CFE), or if it has been hacked on
// by the lowerinvoke pass. In both cases, the right thing to do is to
// convert the call to an explicit setjmp or longjmp call.
case Intrinsic::setjmp:
case Intrinsic::sigsetjmp:
case Intrinsic::setjmp: {
static Function *SetjmpFCache = 0;
Value *V = ReplaceCallWith("setjmp", CI, CI->op_begin()+1, CI->op_end(),
Type::IntTy, SetjmpFCache);
if (CI->getType() != Type::VoidTy)
CI->replaceAllUsesWith(Constant::getNullValue(CI->getType()));
CI->replaceAllUsesWith(V);
break;
}
case Intrinsic::sigsetjmp:
if (CI->getType() != Type::VoidTy)
CI->replaceAllUsesWith(Constant::getNullValue(CI->getType()));
break;
case Intrinsic::longjmp:
static Function *LongjmpFCache = 0;
ReplaceCallWith("longjmp", CI, CI->op_begin()+1, CI->op_end(),
Type::VoidTy, LongjmpFCache);
break;
case Intrinsic::siglongjmp:
// Insert the call to abort
static Function *AbortFCache = 0;