[llvm] r214250 - mbar without argument is equivalent to mbar 0.

[Joerg Sonnenberger]

Author: joerg
Date: Tue Jul 29 18:31:27 2014
New Revision: 214250

URL: http://llvm.org/viewvc/llvm-project?rev=214250&view=rev
Log:
mbar without argument is equivalent to mbar 0.

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

Modified: llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.td?rev=214250&r1=214249&r2=214250&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.td (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.td Tue Jul 29 18:31:27 2014
@@ -3123,6 +3123,8 @@ def : InstAlias<"wait", (WAIT 0)>;
 def : InstAlias<"waitrsv", (WAIT 1)>;
 def : InstAlias<"waitimpl", (WAIT 2)>;
 
+def : InstAlias<"mbar", (MBAR 0)>, Requires<[IsBookE]>;
+
 def : InstAlias<"crset $bx", (CREQV crbitrc:$bx, crbitrc:$bx, crbitrc:$bx)>;
 def : InstAlias<"crclr $bx", (CRXOR crbitrc:$bx, crbitrc:$bx, crbitrc:$bx)>;
 def : InstAlias<"crmove $bx, $by", (CROR crbitrc:$bx, crbitrc:$by, crbitrc:$by)>;

Modified: llvm/trunk/test/MC/PowerPC/ppc64-encoding-bookII.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/PowerPC/ppc64-encoding-bookII.s?rev=214250&r1=214249&r2=214250&view=diff
==============================================================================
--- llvm/trunk/test/MC/PowerPC/ppc64-encoding-bookII.s (original)
+++ llvm/trunk/test/MC/PowerPC/ppc64-encoding-bookII.s Tue Jul 29 18:31:27 2014
@@ -56,6 +56,8 @@
 # CHECK-BE: mbar 1                          # encoding: [0x7c,0x20,0x06,0xac]
 # CHECK-LE: mbar 1                          # encoding: [0xac,0x06,0x20,0x7c]
             mbar 1
+# CHECK-BE: mbar 0
+            mbar
 
 # Extended mnemonics