[llvm] r312064 - [X86] Finish the subtarget and predicate implementation of CLWB.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Tue Aug 29 16:13:36 2017
New Revision: 312064

URL: http://llvm.org/viewvc/llvm-project?rev=312064&view=rev
Log:
[X86] Finish the subtarget and predicate implementation of CLWB.

We don't have an intrinsic implemented for this instruction yet, but it looked odd that we were missing the accessor method from the subtarget.

Modified:
    llvm/trunk/lib/Target/X86/X86InstrInfo.td
    llvm/trunk/lib/Target/X86/X86Subtarget.h

Modified: llvm/trunk/lib/Target/X86/X86InstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrInfo.td?rev=312064&r1=312063&r2=312064&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrInfo.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrInfo.td Tue Aug 29 16:13:36 2017
@@ -872,6 +872,7 @@ def FPStackf32   : Predicate<"!Subtarget
 def FPStackf64   : Predicate<"!Subtarget->hasSSE2()">;
 def HasMPX       : Predicate<"Subtarget->hasMPX()">;
 def HasCLFLUSHOPT : Predicate<"Subtarget->hasCLFLUSHOPT()">;
+def HasCLWB      : Predicate<"Subtarget->hasCLWB()">;
 def HasCmpxchg16b: Predicate<"Subtarget->hasCmpxchg16b()">;
 def Not64BitMode : Predicate<"!Subtarget->is64Bit()">,
                              AssemblerPredicate<"!Mode64Bit", "Not 64-bit mode">;
@@ -2718,6 +2719,9 @@ let Predicates = [HasTBM] in {
 let Predicates = [HasCLFLUSHOPT] in
 def CLFLUSHOPT : I<0xAE, MRM7m, (outs), (ins i8mem:$src),
                    "clflushopt\t$src", [(int_x86_clflushopt addr:$src)]>, PD;
+
+// TODO: Add an instrincis for this.
+let Predicates = [HasCLWB] in
 def CLWB       : I<0xAE, MRM6m, (outs), (ins i8mem:$src), "clwb\t$src", []>, PD;
 
 

Modified: llvm/trunk/lib/Target/X86/X86Subtarget.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86Subtarget.h?rev=312064&r1=312063&r2=312064&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86Subtarget.h (original)
+++ llvm/trunk/lib/Target/X86/X86Subtarget.h Tue Aug 29 16:13:36 2017
@@ -507,6 +507,7 @@ public:
   bool hasPKU() const { return HasPKU; }
   bool hasMPX() const { return HasMPX; }
   bool hasCLFLUSHOPT() const { return HasCLFLUSHOPT; }
+  bool hasCLWB() const { return HasCLWB; }
 
   bool isXRaySupported() const override { return is64Bit(); }