From a69534912ddf83d7f6f843d5305642cb537abe48 Mon Sep 17 00:00:00 2001
From: Akira Hatanaka <ahatanaka@mips.com>
Date: Wed, 18 Apr 2012 18:52:10 +0000
Subject: Mark instruction classes ArithLogicR, ArithLogicI and LoadUpper as
 isRematerializable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155031 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/Mips/MipsInstrInfo.td | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/Target/Mips/MipsInstrInfo.td b/lib/Target/Mips/MipsInstrInfo.td
index 9527645dc4..873d2bd99a 100644
--- a/lib/Target/Mips/MipsInstrInfo.td
+++ b/lib/Target/Mips/MipsInstrInfo.td
@@ -315,6 +315,7 @@ class ArithLogicR<bits<6> op, bits<6> func, string instr_asm, SDNode OpNode,
      [(set RC:$rd, (OpNode RC:$rs, RC:$rt))], itin> {
   let shamt = 0;
   let isCommutable = isComm;
+  let isReMaterializable = 1;
 }
 
 class ArithOverflowR<bits<6> op, bits<6> func, string instr_asm,
@@ -330,7 +331,9 @@ class ArithLogicI<bits<6> op, string instr_asm, SDNode OpNode,
                   Operand Od, PatLeaf imm_type, RegisterClass RC> :
   FI<op, (outs RC:$rt), (ins RC:$rs, Od:$imm16),
      !strconcat(instr_asm, "\t$rt, $rs, $imm16"),
-     [(set RC:$rt, (OpNode RC:$rs, imm_type:$imm16))], IIAlu>;
+     [(set RC:$rt, (OpNode RC:$rs, imm_type:$imm16))], IIAlu> {
+  let isReMaterializable = 1;
+}
 
 class ArithOverflowI<bits<6> op, string instr_asm, SDNode OpNode,
                      Operand Od, PatLeaf imm_type, RegisterClass RC> :
@@ -386,6 +389,7 @@ class LoadUpper<bits<6> op, string instr_asm, RegisterClass RC, Operand Imm>:
      !strconcat(instr_asm, "\t$rt, $imm16"), [], IIAlu> {
   let rs = 0;
   let neverHasSideEffects = 1;
+  let isReMaterializable = 1;
 }
 
 class FMem<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern,
-- 
cgit v1.2.3-18-g5258