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Setjmp should always return zero if we don't implement longjmp. This avoids

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leaving trash in the register, fixing anagram


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7013 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-06-30 19:35:54 +00:00
parent 02c26b681e
commit eb093fbf6f
2 changed files with 4 additions and 0 deletions
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2
lib/Target/X86/InstSelectSimple.cpp
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@ -981,6 +981,8 @@ void ISel::visitIntrinsicCall(LLVMIntrinsic::ID ID, CallInst &CI) {
case LLVMIntrinsic::longjmp:
BuildMI(X86::CALLpcrel32, 1).addExternalSymbol("abort", true);
case LLVMIntrinsic::setjmp:
// Setjmp always returns zero...
BuildMI(BB, X86::MOVir32, 1, getReg(CI)).addZImm(0);
return;
default: assert(0 && "Unknown intrinsic for X86!");
}

2
lib/Target/X86/X86ISelSimple.cpp
View File

@ -981,6 +981,8 @@ void ISel::visitIntrinsicCall(LLVMIntrinsic::ID ID, CallInst &CI) {
case LLVMIntrinsic::longjmp:
BuildMI(X86::CALLpcrel32, 1).addExternalSymbol("abort", true);
case LLVMIntrinsic::setjmp:
// Setjmp always returns zero...
BuildMI(BB, X86::MOVir32, 1, getReg(CI)).addZImm(0);
return;
default: assert(0 && "Unknown intrinsic for X86!");
}