From 20e0fa698d734f5c1b2c96ff5b266e393c82c0b9 Mon Sep 17 00:00:00 2001
From: Jim Grosbach <grosbach@apple.com>
Date: Wed, 8 Dec 2010 23:24:29 +0000
Subject: [PATCH] Fix T2TwoRegImm and use it for t2ADDrSPi12 and friends.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121314 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/ARM/ARMInstrThumb2.td | 28 +++++++++-------------------
 1 file changed, 9 insertions(+), 19 deletions(-)

diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td
index 597ef72204c..b2b32a9c7b8 100644
--- a/lib/Target/ARM/ARMInstrThumb2.td
+++ b/lib/Target/ARM/ARMInstrThumb2.td
@@ -285,9 +285,13 @@ class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
   : T2I<oops, iops, itin, opc, asm, pattern> {
   bits<4> Rd;
   bits<4> Rn;
+  bits<12> imm;
 
   let Inst{11-8}  = Rd;
-  let Inst{3-0}   = Rn;
+  let Inst{19-16} = Rn;
+  let Inst{26}    = imm{11};
+  let Inst{14-12} = imm{10-8};
+  let Inst{7-0}   = imm{7-0};
 }
 
 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
@@ -1159,18 +1163,12 @@ def t2ADDrSPi   : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_imm:$imm),
   let Inst{19-16} = 0b1101; // Rn = sp
   let Inst{15} = 0;
 }
-def t2ADDrSPi12 : T2I<(outs GPR:$Rd), (ins GPR:$sp, imm0_4095:$imm),
-                       IIC_iALUi, "addw", "\t$Rd, $sp, $imm", []> {
-  bits<4> Rd;
-  bits<12> imm;
+def t2ADDrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm),
+                       IIC_iALUi, "addw", "\t$Rd, $Rn, $imm", []> {
   let Inst{31-27} = 0b11110;
-  let Inst{26} = imm{11};
   let Inst{25-20} = 0b100000;
   let Inst{19-16} = 0b1101; // Rn = sp
   let Inst{15} = 0;
-  let Inst{14-12} = imm{10-8};
-  let Inst{11-8} = Rd;
-  let Inst{7-0} = imm{7-0};
 }
 
 // ADD r, sp, so_reg
@@ -1180,7 +1178,6 @@ def t2ADDrSPs   : T2sTwoRegShiftedReg<
   let Inst{31-27} = 0b11101;
   let Inst{26-25} = 0b01;
   let Inst{24-21} = 0b1000;
-  let Inst{19-16} = 0b1101; // Rn = sp
   let Inst{15} = 0;
 }
 
@@ -1193,18 +1190,11 @@ def t2SUBrSPi   : T2sTwoRegImm<(outs GPR:$Rd), (ins GPR:$sp, t2_so_imm:$imm),
   let Inst{19-16} = 0b1101; // Rn = sp
   let Inst{15} = 0;
 }
-def t2SUBrSPi12 : T2I<(outs GPR:$Rd), (ins GPR:$sp, imm0_4095:$imm),
-                       IIC_iALUi, "subw", "\t$Rd, $sp, $imm", []> {
-  bits<4> Rd;
-  bits<12> imm;
+def t2SUBrSPi12 : T2TwoRegImm<(outs GPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm),
+                       IIC_iALUi, "subw", "\t$Rd, $Rn, $imm", []> {
   let Inst{31-27} = 0b11110;
-  let Inst{26} = imm{11};
   let Inst{25-20} = 0b101010;
-  let Inst{19-16} = 0b1101; // Rn = sp
   let Inst{15} = 0;
-  let Inst{14-12} = imm{10-8};
-  let Inst{11-8} = Rd;
-  let Inst{7-0} = imm{7-0};
 }
 
 // SUB r, sp, so_reg
-- 
2.34.1