[llvm] r183687 - [PowerPC] Support extended sc mnemonic

[Ulrich Weigand]

Author: uweigand
Date: Mon Jun 10 12:19:43 2013
New Revision: 183687

URL: http://llvm.org/viewvc/llvm-project?rev=183687&view=rev
Log:

[PowerPC] Support extended sc mnemonic

A plain "sc" without argument is supposed to be treated like "sc 0"
by the assembler.  This patch adds a corresponding alias.

Problem reported by Joerg Sonnenberger.


Modified:
    llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.td
    llvm/trunk/test/MC/PowerPC/ppc64-encoding.s

Modified: llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.td?rev=183687&r1=183686&r2=183687&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.td (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.td Mon Jun 10 12:19:43 2013
@@ -2154,6 +2154,8 @@ class PPCAsmPseudo<string asm, dag iops>
   let isPseudo = 1;
 }
 
+def : InstAlias<"sc", (SC 0)>;
+
 def : InstAlias<"mr $rA, $rB", (OR8 g8rc:$rA, g8rc:$rB, g8rc:$rB)>;
 
 def SLWI : PPCAsmPseudo<"slwi $rA, $rS, $n",

Modified: llvm/trunk/test/MC/PowerPC/ppc64-encoding.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/PowerPC/ppc64-encoding.s?rev=183687&r1=183686&r2=183687&view=diff
==============================================================================
--- llvm/trunk/test/MC/PowerPC/ppc64-encoding.s (original)
+++ llvm/trunk/test/MC/PowerPC/ppc64-encoding.s Mon Jun 10 12:19:43 2013
@@ -43,6 +43,8 @@
 
 # CHECK: sc 1                            # encoding: [0x44,0x00,0x00,0x22]
          sc 1
+# CHECK: sc 0                            # encoding: [0x44,0x00,0x00,0x02]
+         sc
 
 # Fixed-point facility