[PATCH][MIPS] Add aliases for sync instruction used by Octeon CPU

[Kai Nacke]

Ping.

While checking the Octeon SDK I noticed that gas supports 2 additional 
aliases: syncio and syncioall. I also added them.

Regards,
Kai

On 02.09.2014 19:05, Kai Nacke wrote:
> Hi Daniel,
>
> the attached patch adds aliases for the sync instruction (synciobdma,
> syncs, syncw, syncws) which are used by the Octeon CPU.
>
> Please review.
>
> Regards,
> Kai
>
>
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>

-------------- next part --------------
diff --git a/lib/Target/Mips/Mips64InstrInfo.td b/lib/Target/Mips/Mips64InstrInfo.td
index f0b6814..d91e5b6 100644
--- a/lib/Target/Mips/Mips64InstrInfo.td
+++ b/lib/Target/Mips/Mips64InstrInfo.td
@@ -510,3 +510,11 @@ def : MipsInstAlias<"dmtc0 $rt, $rd", (DMTC0 GPR64Opnd:$rt, GPR64Opnd:$rd, 0), 0
 def : MipsInstAlias<"dmfc2 $rt, $rd", (DMFC2 GPR64Opnd:$rt, GPR64Opnd:$rd, 0), 0>;
 def : MipsInstAlias<"dmtc2 $rt, $rd", (DMTC2 GPR64Opnd:$rt, GPR64Opnd:$rd, 0), 0>;
 
+let Predicates = [HasMips64, HasCnMips] in {
+def : MipsInstAlias<"syncio",     (SYNC 0x1), 0>;
+def : MipsInstAlias<"synciobdma", (SYNC 0x2), 0>;
+def : MipsInstAlias<"syncioall",  (SYNC 0x3), 0>;
+def : MipsInstAlias<"syncs",      (SYNC 0x6), 0>;
+def : MipsInstAlias<"syncw",      (SYNC 0x4), 0>;
+def : MipsInstAlias<"syncws",     (SYNC 0x5), 0>;
+}
diff --git a/test/MC/Mips/octeon-instructions.s b/test/MC/Mips/octeon-instructions.s
index b7c89b4..8d7b667 100644
--- a/test/MC/Mips/octeon-instructions.s
+++ b/test/MC/Mips/octeon-instructions.s
@@ -35,6 +35,12 @@
 # CHECK: sne   $23, $23, $20          # encoding: [0x72,0xf4,0xb8,0x2b]
 # CHECK: snei  $4, $16, -313          # encoding: [0x72,0x04,0xb1,0xef]
 # CHECK: snei  $26, $26, 511          # encoding: [0x73,0x5a,0x7f,0xef]
+# CHECK: sync  1                      # encoding: [0x00,0x00,0x00,0x4f]
+# CHECK: sync  2                      # encoding: [0x00,0x00,0x00,0x8f]
+# CHECK: sync  3                      # encoding: [0x00,0x00,0x00,0xcf]
+# CHECK: sync  6                      # encoding: [0x00,0x00,0x01,0x8f]
+# CHECK: sync  4                      # encoding: [0x00,0x00,0x01,0x0f]
+# CHECK: sync  5                      # encoding: [0x00,0x00,0x01,0x4f]
 # CHECK: v3mulu $21, $10, $21         # encoding: [0x71,0x55,0xa8,0x11]
 # CHECK: v3mulu $20, $20, $10         # encoding: [0x72,0x8a,0xa0,0x11]
 # CHECK: vmm0  $3, $19, $16           # encoding: [0x72,0x70,0x18,0x10]
@@ -77,6 +83,12 @@
   sne   $23, $20
   snei  $4, $16, -313
   snei  $26, 511
+  syncio
+  synciobdma
+  syncioall
+  syncs
+  syncw
+  syncws
   v3mulu $21, $10, $21
   v3mulu $20, $10
   vmm0  $3, $19, $16