From e351865b65e92bea8ceeb32ad757d783d0ecea0f Mon Sep 17 00:00:00 2001
From: Jack Carter <jack.carter@imgtec.com>
Date: Thu, 16 May 2013 20:24:27 +0000
Subject: Mips assembler: Add TwoOperandConstraint definitions

This patch removes alias definition for addiu $rs,$imm
and instead uses the TwoOperandAliasConstraint field in
the ArithLogicI instruction class.

This way all instructions that inherit ArithLogicI class
have the same macro defined.

The usage examples are added to test files.

Patch by Vladimir Medic


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182048 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/Mips/MipsInstrInfo.td | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'lib')

diff --git a/lib/Target/Mips/MipsInstrInfo.td b/lib/Target/Mips/MipsInstrInfo.td
index b203b1e40b..950e075c8a 100644
--- a/lib/Target/Mips/MipsInstrInfo.td
+++ b/lib/Target/Mips/MipsInstrInfo.td
@@ -391,6 +391,7 @@ class ArithLogicI<string opstr, Operand Od, RegisterOperand RO,
          [(set RO:$rt, (OpNode RO:$rs, imm_type:$imm16))],
          IIAlu, FrmI, opstr> {
   let isReMaterializable = 1;
+  let TwoOperandAliasConstraint = "$rs = $rt";
 }
 
 // Arithmetic Multiply ADD/SUB
@@ -1098,8 +1099,6 @@ def : InstAlias<"mfc2 $rt, $rd",
                 (MFC2_3OP CPURegsOpnd:$rt, CPURegsOpnd:$rd, 0), 0>;
 def : InstAlias<"mtc2 $rt, $rd",
                 (MTC2_3OP CPURegsOpnd:$rd, 0, CPURegsOpnd:$rt), 0>;
-def : InstAlias<"addiu $rs, $imm",
-                (ADDiu CPURegsOpnd:$rs, CPURegsOpnd:$rs, simm16:$imm), 0>;
 def : InstAlias<"bnez $rs,$offset",
                  (BNE CPURegsOpnd:$rs, ZERO, brtarget:$offset), 1>,
                  Requires<[NotMips64]>;
-- 
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