From eb093fbf6fd2878c842f2f215362597475ef1817 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Mon, 30 Jun 2003 19:35:54 +0000 Subject: [PATCH] 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 --- lib/Target/X86/InstSelectSimple.cpp | 2 ++ lib/Target/X86/X86ISelSimple.cpp | 2 ++ 2 files changed, 4 insertions(+) diff --git a/lib/Target/X86/InstSelectSimple.cpp b/lib/Target/X86/InstSelectSimple.cpp index e57a6ab75ad..b2e11ba9ca1 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 e57a6ab75ad..b2e11ba9ca1 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!"); }