From 1769a3df4a81309ec055a8586c8ac35755fa79a2 Mon Sep 17 00:00:00 2001
From: Jim Grosbach <grosbach@apple.com>
Date: Wed, 20 Jul 2011 20:49:03 +0000
Subject: [PATCH] Tidy up a bit.

Move common definitions for ARM and Thumb2 into ARMInstrFormats.td and rename
them to be a bit more descriptive that they're for the PKH instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135617 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/ARM/ARMInstrFormats.td |  3 +++
 lib/Target/ARM/ARMInstrInfo.td    | 12 ++----------
 lib/Target/ARM/ARMInstrThumb2.td  |  4 ++--
 3 files changed, 7 insertions(+), 12 deletions(-)

diff --git a/lib/Target/ARM/ARMInstrFormats.td b/lib/Target/ARM/ARMInstrFormats.td
index cd109c9dc94..7960644e175 100644
--- a/lib/Target/ARM/ARMInstrFormats.td
+++ b/lib/Target/ARM/ARMInstrFormats.td
@@ -847,6 +847,9 @@ class AMiscA1I<bits<8> opcod, bits<4> opc7_4, dag oops, dag iops,
 }
 
 // PKH instructions
+def pkh_lsl_amt : ImmLeaf<i32, [{ return Imm >= 0 && Imm < 32; }]>;
+def pkh_asr_amt : ImmLeaf<i32, [{ return Imm > 0 && Imm <= 32; }]>;
+
 class APKHI<bits<8> opcod, bit tb, dag oops, dag iops, InstrItinClass itin,
             string opc, string asm, list<dag> pattern>
   : I<oops, iops, AddrModeNone, 4, IndexModeNone, ArithMiscFrm, itin,
diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td
index be81b598260..76714d550fb 100644
--- a/lib/Target/ARM/ARMInstrInfo.td
+++ b/lib/Target/ARM/ARMInstrInfo.td
@@ -3111,15 +3111,11 @@ def : ARMV6Pat<(or (sra (shl GPR:$Rm, (i32 24)), (i32 16)),
                    (and (srl GPR:$Rm, (i32 8)), 0xFF)),
                (REVSH GPR:$Rm)>;
 
-def lsl_amt : ImmLeaf<i32, [{
-  return Imm >= 0 && Imm < 32;
-}]>;
-
 def PKHBT : APKHI<0b01101000, 0, (outs GPR:$Rd),
                               (ins GPR:$Rn, GPR:$Rm, i32imm:$sh),
                IIC_iALUsi, "pkhbt", "\t$Rd, $Rn, $Rm, lsl $sh",
                [(set GPR:$Rd, (or (and GPR:$Rn, 0xFFFF),
-                                  (and (shl GPR:$Rm, lsl_amt:$sh),
+                                  (and (shl GPR:$Rm, pkh_lsl_amt:$sh),
                                        0xFFFF0000)))]>,
                Requires<[IsARM, HasV6]>;
 
@@ -3129,17 +3125,13 @@ def : ARMV6Pat<(or (and GPR:$Rn, 0xFFFF), (and GPR:$Rm, 0xFFFF0000)),
 def : ARMV6Pat<(or (and GPR:$Rn, 0xFFFF), (shl GPR:$Rm, imm16_31:$sh)),
                (PKHBT GPR:$Rn, GPR:$Rm, imm16_31:$sh)>;
 
-def asr_amt : ImmLeaf<i32, [{
-  return Imm > 0 && Imm <= 32;
-}]>;
-
 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
 // will match the pattern below.
 def PKHTB : APKHI<0b01101000, 1, (outs GPR:$Rd),
                               (ins GPR:$Rn, GPR:$Rm, i32imm:$sh),
                IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm, asr $sh",
                [(set GPR:$Rd, (or (and GPR:$Rn, 0xFFFF0000),
-                                  (and (sra GPR:$Rm, asr_amt:$sh),
+                                  (and (sra GPR:$Rm, pkh_asr_amt:$sh),
                                        0xFFFF)))]>,
                Requires<[IsARM, HasV6]>;
 
diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td
index 55dbd89f579..6241b31da60 100644
--- a/lib/Target/ARM/ARMInstrThumb2.td
+++ b/lib/Target/ARM/ARMInstrThumb2.td
@@ -2616,7 +2616,7 @@ def t2PKHBT : T2ThreeReg<
             (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$sh),
                   IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm, lsl $sh",
                   [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
-                                      (and (shl rGPR:$Rm, lsl_amt:$sh),
+                                      (and (shl rGPR:$Rm, pkh_lsl_amt:$sh),
                                            0xFFFF0000)))]>,
                   Requires<[HasT2ExtractPack, IsThumb2]> {
   let Inst{31-27} = 0b11101;
@@ -2644,7 +2644,7 @@ def t2PKHTB : T2ThreeReg<
                   (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$sh),
                   IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm, asr $sh",
                   [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
-                                       (and (sra rGPR:$Rm, asr_amt:$sh),
+                                       (and (sra rGPR:$Rm, pkh_asr_amt:$sh),
                                             0xFFFF)))]>,
                   Requires<[HasT2ExtractPack, IsThumb2]> {
   let Inst{31-27} = 0b11101;
-- 
2.34.1