From 3bcb327e9cd4725a7d5e50abfe29cf1f459724e8 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Fri, 26 Sep 2008 21:30:20 +0000
Subject: [PATCH] Mark lea fi# as being really rematerializable.

llvm-svn: 56698
---
 lib/Target/X86/X86InstrInfo.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index c19628b81b5..c275418ddd8 100644
--- a/lib/Target/X86/X86InstrInfo.cpp
+++ b/lib/Target/X86/X86InstrInfo.cpp
@@ -819,11 +819,12 @@ X86InstrInfo::isReallyTriviallyReMaterializable(const MachineInstr *MI) const {
  
      case X86::LEA32r:
      case X86::LEA64r: {
-       if (MI->getOperand(1).isRegister() &&
-           MI->getOperand(2).isImmediate() &&
+       if (MI->getOperand(2).isImmediate() &&
            MI->getOperand(3).isRegister() && MI->getOperand(3).getReg() == 0 &&
            !MI->getOperand(4).isRegister()) {
          // lea fi#, lea GV, etc. are all rematerializable.
+         if (!MI->getOperand(1).isRegister())
+           return true;
          unsigned BaseReg = MI->getOperand(1).getReg();
          if (BaseReg == 0)
            return true;