From: Jim Grosbach <grosbach@apple.com>
Date: Thu, 15 Sep 2011 18:13:30 +0000 (+0000)
Subject: Thumb2 assembly parsing and encoding for REV.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1b69a128d6b98456c666b4031cc46c3d0fbe6177;p=oota-llvm.git

Thumb2 assembly parsing and encoding for REV.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139813 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td
index fbc95ee96c6..9467f36f984 100644
--- a/lib/Target/ARM/ARMInstrThumb2.td
+++ b/lib/Target/ARM/ARMInstrThumb2.td
@@ -3841,3 +3841,5 @@ def : t2InstAlias<"push${p} $regs", (t2STMDB_UPD SP, pred:$p, reglist:$regs)>;
 def : t2InstAlias<"pop${p}.w $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
 def : t2InstAlias<"pop${p} $regs", (t2LDMIA_UPD SP, pred:$p, reglist:$regs)>;
 
+// Alias for REV without the ".w" optional width specifier.
+def : t2InstAlias<"rev${p} $Rd, $Rm", (t2REV rGPR:$Rd, rGPR:$Rm, pred:$p)>;
diff --git a/test/MC/ARM/basic-thumb2-instructions.s b/test/MC/ARM/basic-thumb2-instructions.s
index 9facc0ca605..9723407bbb0 100644
--- a/test/MC/ARM/basic-thumb2-instructions.s
+++ b/test/MC/ARM/basic-thumb2-instructions.s
@@ -1425,6 +1425,22 @@ _func:
 @ CHECK: rbitne	r1, r2                  @ encoding: [0x92,0xfa,0xa2,0xf1]
 
 
+@------------------------------------------------------------------------------
+@ REV
+@------------------------------------------------------------------------------
+        rev.w r1, r2
+        rev r2, r8
+        itt ne
+        revne r1, r2
+        revne r1, r8
+
+@ CHECK: rev.w	r1, r2                  @ encoding: [0x92,0xfa,0x82,0xf1]
+@ CHECK: rev.w	r2, r8                  @ encoding: [0x98,0xfa,0x88,0xf2]
+@ CHECK: itt	ne                      @ encoding: [0x1c,0xbf]
+@ CHECK: revne	r1, r2                  @ encoding: [0x11,0xba]
+@ CHECK: revne.w r1, r8                 @ encoding: [0x98,0xfa,0x88,0xf1]
+
+
 @------------------------------------------------------------------------------
 @ SUB (register)
 @------------------------------------------------------------------------------