[llvm-commits] [llvm] r120224 - in /llvm/trunk: lib/Target/X86/AsmParser/X86AsmParser.cpp lib/Target/X86/X86InstrInfo.td test/MC/X86/x86-64.s

[Rafael Espindola]

Author: rafael
Date: Sat Nov 27 14:29:45 2010
New Revision: 120224

URL: http://llvm.org/viewvc/llvm-project?rev=120224&view=rev
Log:
Implement the data16 prefix.

Modified:
    llvm/trunk/lib/Target/X86/AsmParser/X86AsmParser.cpp
    llvm/trunk/lib/Target/X86/X86InstrInfo.td
    llvm/trunk/test/MC/X86/x86-64.s

Modified: llvm/trunk/lib/Target/X86/AsmParser/X86AsmParser.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/AsmParser/X86AsmParser.cpp?rev=120224&r1=120223&r2=120224&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/AsmParser/X86AsmParser.cpp (original)
+++ llvm/trunk/lib/Target/X86/AsmParser/X86AsmParser.cpp Sat Nov 27 14:29:45 2010
@@ -708,7 +708,7 @@
     Name == "lock" || Name == "rep" ||
     Name == "repe" || Name == "repz" ||
     Name == "repne" || Name == "repnz" ||
-    Name == "rex64";
+    Name == "rex64" || Name == "data16";
 
 
   // This does the actual operand parsing.  Don't parse any more if we have a

Modified: llvm/trunk/lib/Target/X86/X86InstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrInfo.td?rev=120224&r1=120223&r2=120224&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrInfo.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrInfo.td Sat Nov 27 14:29:45 2010
@@ -1147,6 +1147,9 @@
 // Rex64 instruction prefix
 def REX64_PREFIX : I<0x48, RawFrm, (outs),  (ins), "rex64", []>;
 
+// Data16 instruction prefix
+def DATA16_PREFIX : I<0x66, RawFrm, (outs),  (ins), "data16", []>;
+
 // Repeat string operation instruction prefixes
 // These uses the DF flag in the EFLAGS register to inc or dec ECX
 let Defs = [ECX], Uses = [ECX,EFLAGS] in {

Modified: llvm/trunk/test/MC/X86/x86-64.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/X86/x86-64.s?rev=120224&r1=120223&r2=120224&view=diff
==============================================================================
--- llvm/trunk/test/MC/X86/x86-64.s (original)
+++ llvm/trunk/test/MC/X86/x86-64.s Sat Nov 27 14:29:45 2010
@@ -910,3 +910,4 @@
 movq	%mm5, %rbx // CHECK: movd %mm5, %rbx # encoding: [0x48,0x0f,0x7e,0xeb]
 
 rex64 // CHECK: rex64 # encoding: [0x48]
+data16 // CHECK: data16 # encoding: [0x66]