[llvm-commits] [llvm] r147152 - /llvm/trunk/lib/Target/ARM/AsmParser/ARMAsmParser.cpp

[Jim Grosbach]

Author: grosbach
Date: Thu Dec 22 11:37:00 2011
New Revision: 147152

URL: http://llvm.org/viewvc/llvm-project?rev=147152&view=rev
Log:
ARM assembly parser canonicallize on 'lsl' for shift-by-zero form.

Modified:
    llvm/trunk/lib/Target/ARM/AsmParser/ARMAsmParser.cpp

Modified: llvm/trunk/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/AsmParser/ARMAsmParser.cpp?rev=147152&r1=147151&r2=147152&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/AsmParser/ARMAsmParser.cpp (original)
+++ llvm/trunk/lib/Target/ARM/AsmParser/ARMAsmParser.cpp Thu Dec 22 11:37:00 2011
@@ -2421,6 +2421,10 @@
         Error(ImmLoc, "immediate shift value out of range");
         return -1;
       }
+      // shift by zero is a nop. Always send it through as lsl.
+      // ('as' compatibility)
+      if (Imm == 0)
+        ShiftTy = ARM_AM::lsl;
     } else if (Parser.getTok().is(AsmToken::Identifier)) {
       ShiftReg = tryParseRegister();
       SMLoc L = Parser.getTok().getLoc();