Mark lea fi# as being really rematerializable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56698 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index c19628b81b53e3fe51571dfd265b0d3797948e98..c275418ddd8749ff0d6d8e2d95fc955216e4c1b6 100644 (file)
--- 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;