[llvm-commits] [llvm] r140108 - /llvm/trunk/lib/Target/ARM/ARMInstrThumb.td

[Jim Grosbach]

Author: grosbach
Date: Mon Sep 19 19:10:37 2011
New Revision: 140108

URL: http://llvm.org/viewvc/llvm-project?rev=140108&view=rev
Log:
Thumb1 convenience aliases for disassembler round-trip testing. CPS instruction.

Modified:
    llvm/trunk/lib/Target/ARM/ARMInstrThumb.td

Modified: llvm/trunk/lib/Target/ARM/ARMInstrThumb.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMInstrThumb.td?rev=140108&r1=140107&r2=140108&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMInstrThumb.td (original)
+++ llvm/trunk/lib/Target/ARM/ARMInstrThumb.td Mon Sep 19 19:10:37 2011
@@ -1426,3 +1426,11 @@
 // In Thumb1, "nop" is encoded as a "mov r8, r8". Technically, the bf00
 // encoding is available on ARMv6K, but we don't differentiate that finely.
 def : InstAlias<"nop", (tMOVr R8, R8, 14, 0)>,Requires<[IsThumb, IsThumb1Only]>;
+
+
+// For round-trip assembly/disassembly, we have to handle a CPS instruction
+// without any iflags. That's not, strictly speaking, valid syntax, but it's
+// a useful extention and assembles to defined behaviour (the insn does
+// nothing).
+def : tInstAlias<"cps$imod", (tCPS imod_op:$imod, 0)>;
+def : tInstAlias<"cps$imod", (tCPS imod_op:$imod, 0)>;