From e4c7f0f6ec2fdc1b58541dab4445761a5e9c6e2a Mon Sep 17 00:00:00 2001
From: Johnny Chen <johnny.chen@apple.com>
Date: Thu, 11 Feb 2010 20:31:08 +0000
Subject: [PATCH] Added LDRT/LDRBT/STRT/STRBT for disassembly only.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95916 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/ARM/ARMInstrInfo.td | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td
index ea7a5692eff..dc4587cdc11 100644
--- a/lib/Target/ARM/ARMInstrInfo.td
+++ b/lib/Target/ARM/ARMInstrInfo.td
@@ -948,6 +948,20 @@ def LDRSB_POST: AI3ldsbpo<(outs GPR:$dst, GPR:$base_wb),
                    "ldrsb", "\t$dst, [$base], $offset", "$base = $base_wb", []>;
 }
 
+// LDRT and LDRBT are for disassembly only.
+
+def LDRT : AI2ldwpo<(outs GPR:$dst, GPR:$base_wb),
+                   (ins GPR:$base, am2offset:$offset), LdFrm, IIC_iLoadru,
+                   "ldrt", "\t$dst, [$base], $offset", "$base = $base_wb", []> {
+  let Inst{21} = 1; // overwrite
+}
+
+def LDRBT : AI2ldbpo<(outs GPR:$dst, GPR:$base_wb),
+                   (ins GPR:$base,am2offset:$offset), LdFrm, IIC_iLoadru,
+                   "ldrb", "\t$dst, [$base], $offset", "$base = $base_wb", []> {
+  let Inst{21} = 1; // overwrite
+}
+
 // Store
 def STR  : AI2stw<(outs), (ins GPR:$src, addrmode2:$addr), StFrm, IIC_iStorer,
                "str", "\t$src, $addr",
@@ -1011,6 +1025,24 @@ def STRB_POST: AI2stbpo<(outs GPR:$base_wb),
                     [(set GPR:$base_wb, (post_truncsti8 GPR:$src,
                                          GPR:$base, am2offset:$offset))]>;
 
+// STRT and STRBT are for disassembly only.
+
+def STRT : AI2stwpo<(outs GPR:$base_wb),
+                    (ins GPR:$src, GPR:$base,am2offset:$offset), 
+                    StFrm, IIC_iStoreru,
+                    "strt", "\t$src, [$base], $offset", "$base = $base_wb",
+                    [/* For disassembly only; pattern left blank */]> {
+  let Inst{21} = 1; // overwrite
+}
+
+def STRBT : AI2stbpo<(outs GPR:$base_wb),
+                     (ins GPR:$src, GPR:$base,am2offset:$offset), 
+                     StFrm, IIC_iStoreru,
+                     "strbt", "\t$src, [$base], $offset", "$base = $base_wb",
+                     [/* For disassembly only; pattern left blank */]> {
+  let Inst{21} = 1; // overwrite
+}
+
 //===----------------------------------------------------------------------===//
 //  Load / store multiple Instructions.
 //