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| author | Chris Lattner <sabre@nondot.org> | 2003-06-30 19:35:54 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2003-06-30 19:35:54 +0000 |
| commit | eb093fbf6fd2878c842f2f215362597475ef1817 (patch) | |
| tree | 627231ed08cfe387ff67732fa33a49ec582dc245 | |
| parent | 02c26b681ec70538fba8b273326e696e6a3dc4d2 (diff) | |
| download | external_llvm-eb093fbf6fd2878c842f2f215362597475ef1817.zip external_llvm-eb093fbf6fd2878c842f2f215362597475ef1817.tar.gz external_llvm-eb093fbf6fd2878c842f2f215362597475ef1817.tar.bz2 | |
Setjmp should always return zero if we don't implement longjmp. This avoids
leaving trash in the register, fixing anagram
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7013 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/InstSelectSimple.cpp | 2 | ||||
| -rw-r--r-- | lib/Target/X86/X86ISelSimple.cpp | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/X86/InstSelectSimple.cpp b/lib/Target/X86/InstSelectSimple.cpp index e57a6ab..b2e11ba 100644 --- a/lib/Target/X86/InstSelectSimple.cpp +++ b/lib/Target/X86/InstSelectSimple.cpp @@ -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!"); } diff --git a/lib/Target/X86/X86ISelSimple.cpp b/lib/Target/X86/X86ISelSimple.cpp index e57a6ab..b2e11ba 100644 --- a/lib/Target/X86/X86ISelSimple.cpp +++ b/lib/Target/X86/X86ISelSimple.cpp @@ -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!"); } |