From 231948f860df79b7f0926305caa065a64d758265 Mon Sep 17 00:00:00 2001
From: Jim Grosbach <grosbach@apple.com>
Date: Fri, 16 Sep 2011 16:58:03 +0000
Subject: [PATCH] Thumb2 assembly parsing and encoding for SMLALD/SMLALDX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139906 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/ARM/ARMInstrThumb2.td        |  8 ++++----
 test/MC/ARM/basic-thumb2-instructions.s | 16 ++++++++++++++++
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td
index df907d86fee..3183d7629d4 100644
--- a/lib/Target/ARM/ARMInstrThumb2.td
+++ b/lib/Target/ARM/ARMInstrThumb2.td
@@ -2624,12 +2624,12 @@ def t2SMLSDX  : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
             "\t$Rd, $Rn, $Rm, $Ra", []>,
           Requires<[IsThumb2, HasThumb2DSP]>;
 def t2SMLALD  : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
-                        (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
-                        "\t$Ra, $Rd, $Rm, $Rn", []>,
+                        (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64, "smlald",
+                        "\t$Ra, $Rd, $Rn, $Rm", []>,
           Requires<[IsThumb2, HasThumb2DSP]>;
 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
-                        (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
-                        "\t$Ra, $Rd, $Rm, $Rn", []>,
+                        (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaldx",
+                        "\t$Ra, $Rd, $Rn, $Rm", []>,
           Requires<[IsThumb2, HasThumb2DSP]>;
 def t2SMLSLD  : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
                         (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
diff --git a/test/MC/ARM/basic-thumb2-instructions.s b/test/MC/ARM/basic-thumb2-instructions.s
index adf585d63ed..84de70ff242 100644
--- a/test/MC/ARM/basic-thumb2-instructions.s
+++ b/test/MC/ARM/basic-thumb2-instructions.s
@@ -1822,6 +1822,22 @@ _func:
 @ CHECK: smlalttge	r8, r3, r8, r4  @ encoding: [0xc8,0xfb,0xb4,0x83]
 
 
+@------------------------------------------------------------------------------
+@ SMLALD/SMLALDX
+@------------------------------------------------------------------------------
+        smlald r2, r3, r5, r8
+        smlaldx r2, r3, r5, r8
+        ite eq
+        smlaldeq r2, r3, r5, r8
+        smlaldxne r2, r3, r5, r8
+
+@ CHECK: smlald	r2, r3, r5, r8          @ encoding: [0xc5,0xfb,0xc8,0x23]
+@ CHECK: smlaldx r2, r3, r5, r8         @ encoding: [0xc5,0xfb,0xd8,0x23]
+@ CHECK: ite	eq                      @ encoding: [0x0c,0xbf]
+@ CHECK: smlaldeq	r2, r3, r5, r8  @ encoding: [0xc5,0xfb,0xc8,0x23]
+@ CHECK: smlaldxne	r2, r3, r5, r8  @ encoding: [0xc5,0xfb,0xd8,0x23]
+
+
 @------------------------------------------------------------------------------
 @ SUB (register)
 @------------------------------------------------------------------------------