[llvm] r177611 - Add a WriteMicrocoded for ancient microcoded instructions.

[Jakob Stoklund Olesen]

Author: stoklund
Date: Wed Mar 20 19:07:17 2013
New Revision: 177611

URL: http://llvm.org/viewvc/llvm-project?rev=177611&view=rev
Log:
Add a WriteMicrocoded for ancient microcoded instructions.

Modified:
    llvm/trunk/lib/Target/X86/X86InstrInfo.td
    llvm/trunk/lib/Target/X86/X86Schedule.td

Modified: llvm/trunk/lib/Target/X86/X86InstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrInfo.td?rev=177611&r1=177610&r2=177611&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrInfo.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrInfo.td Wed Mar 20 19:07:17 2013
@@ -1513,6 +1513,7 @@ def CLTS : I<0x06, RawFrm, (outs), (ins)
 // Table lookup instructions
 def XLAT : I<0xD7, RawFrm, (outs), (ins), "xlatb", [], IIC_XLAT>;
 
+let SchedRW = [WriteMicrocoded] in {
 // ASCII Adjust After Addition
 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
 def AAA : I<0x37, RawFrm, (outs), (ins), "aaa", [], IIC_AAA>,
@@ -1542,7 +1543,9 @@ def DAA : I<0x27, RawFrm, (outs), (ins),
 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
 def DAS : I<0x2F, RawFrm, (outs), (ins), "das", [], IIC_DAS>,
             Requires<[In32BitMode]>;
+} // SchedRW
 
+let SchedRW = [WriteSystem] in {
 // Check Array Index Against Bounds
 def BOUNDS16rm : I<0x62, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
                    "bound\t{$src, $dst|$dst, $src}", [], IIC_BOUND>, OpSize,
@@ -1558,6 +1561,7 @@ def ARPL16rr : I<0x63, MRMDestReg, (outs
 def ARPL16mr : I<0x63, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
                  "arpl\t{$src, $dst|$dst, $src}", [], IIC_ARPL_MEM>,
                  Requires<[In32BitMode]>;
+} // SchedRW
 
 //===----------------------------------------------------------------------===//
 // MOVBE Instructions

Modified: llvm/trunk/lib/Target/X86/X86Schedule.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86Schedule.td?rev=177611&r1=177610&r2=177611&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86Schedule.td (original)
+++ llvm/trunk/lib/Target/X86/X86Schedule.td Wed Mar 20 19:07:17 2013
@@ -86,6 +86,9 @@ defm WriteCvtF2F : X86SchedWritePair; //
 // Catch-all for expensive system instructions.
 def WriteSystem : SchedWrite;
 
+// Old microcoded instructions that nobody use.
+def WriteMicrocoded : SchedWrite;
+
 //===----------------------------------------------------------------------===//
 // Instruction Itinerary classes used for X86
 def IIC_DEFAULT     : InstrItinClass;