From 7805fa4acc85712c8c9d931f03dfc5888caed6d8 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Thu, 17 Mar 2005 16:29:26 +0000
Subject: [PATCH] Don't emit two comparisons when comparing a FP value against
 zero!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20651 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/X86/X86ISelPattern.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/Target/X86/X86ISelPattern.cpp b/lib/Target/X86/X86ISelPattern.cpp
index 9b68ad8b02d..4ae21305b7b 100644
--- a/lib/Target/X86/X86ISelPattern.cpp
+++ b/lib/Target/X86/X86ISelPattern.cpp
@@ -1078,6 +1078,7 @@ void ISel::EmitCMP(SDOperand LHS, SDOperand RHS, bool HasOneUse) {
       BuildMI(BB, X86::FTST, 1).addReg(Reg);
       BuildMI(BB, X86::FNSTSW8r, 0);
       BuildMI(BB, X86::SAHF, 1);
+      return;
     }
   }