From 2416da36ace2130607c652a94b814de7e724efeb Mon Sep 17 00:00:00 2001 From: Chad Rosier Date: Fri, 24 Jun 2011 21:15:36 +0000 Subject: [PATCH] Hoist simple check above more complex checking to avoid unnecessary overheads. No functional change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133824 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/X86/X86ISelLowering.cpp | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 13bef08fe53..6c606be5912 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -2556,6 +2556,11 @@ X86TargetLowering::IsEligibleForTailCallOptimization(SDValue Callee, if (isCalleeStructRet || isCallerStructRet) return false; + // An stdcall caller is expected to clean up its arguments; the callee + // isn't going to do that. + if (!CCMatch && CallerCC==CallingConv::X86_StdCall) + return false; + // Do not sibcall optimize vararg calls unless all arguments are passed via // registers. if (isVarArg && !Outs.empty()) { @@ -2692,11 +2697,6 @@ X86TargetLowering::IsEligibleForTailCallOptimization(SDValue Callee, } } - // An stdcall caller is expected to clean up its arguments; the callee - // isn't going to do that. - if (!CCMatch && CallerCC==CallingConv::X86_StdCall) - return false; - return true; } -- 2.34.1