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[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.

llvm-svn: 312064
This commit is contained in:
Craig Topper 2017-08-29 23:13:36 +00:00
parent 68e460194a
commit 559f61e179
2 changed files with 5 additions and 0 deletions
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4
llvm/lib/Target/X86/X86InstrInfo.td
View File

@ -872,6 +872,7 @@ def FPStackf32 : Predicate<"!Subtarget->hasSSE1()">;
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;

1
llvm/lib/Target/X86/X86Subtarget.h
View File

@ -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(); }