[PowerPC]clean PPC target feature FeatureBPERMD

[diggerlin]

clean unused PPC target feature FeatureBPERMD.

[llvmbot]

@llvm/pr-subscribers-backend-powerpc

Author: zhijian lin (diggerlin)

Changes

clean unused PPC target feature FeatureBPERMD.

---

Full diff: https://github.com/llvm/llvm-project/pull/148050.diff

2 Files Affected:

• (modified) llvm/lib/Target/PowerPC/PPC.td (-3)
• (modified) llvm/lib/Target/PowerPC/PPCInstrInfo.td (+1-1)

diff --git a/llvm/lib/Target/PowerPC/PPC.td b/llvm/lib/Target/PowerPC/PPC.td
index ea7c2203662bd..d4991bcba76f3 100644
--- a/llvm/lib/Target/PowerPC/PPC.td
+++ b/llvm/lib/Target/PowerPC/PPC.td
@@ -124,8 +124,6 @@ def FeatureFPCVT     : SubtargetFeature<"fpcvt", "HasFPCVT", "true",
                                         [FeatureFPU]>;
 def FeatureISEL      : SubtargetFeature<"isel","HasISEL", "true",
                                         "Enable the isel instruction">;
-def FeatureBPERMD    : SubtargetFeature<"bpermd", "HasBPERMD", "true",
-                                        "Enable the bpermd instruction">;
 def FeatureExtDiv    : SubtargetFeature<"extdiv", "HasExtDiv", "true",
                                         "Enable extended divide instructions">;
 def FeatureLDBRX     : SubtargetFeature<"ldbrx","HasLDBRX", "true",
@@ -394,7 +392,6 @@ def ProcessorFeatures {
                                                   FeatureLDBRX,
                                                   Feature64Bit,
                                                   /* Feature64BitRegs, */
-                                                  FeatureBPERMD,
                                                   FeatureExtDiv,
                                                   FeatureMFTB,
                                                   DeprecatedDST,
diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.td b/llvm/lib/Target/PowerPC/PPCInstrInfo.td
index 99ef89a7fdc0c..0ce6079e2636d 100644
--- a/llvm/lib/Target/PowerPC/PPCInstrInfo.td
+++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.td
@@ -739,7 +739,7 @@ def NoNaNsFPMath
     : Predicate<"Subtarget->getTargetMachine().Options.NoNaNsFPMath">;
 def NaNsFPMath
     : Predicate<"!Subtarget->getTargetMachine().Options.NoNaNsFPMath">;
-def HasBPERMD : Predicate<"Subtarget->hasBPERMD()">;
+def HasBPERMD : Predicate<"Subtarget->getCPUDirective() >= PPC::DIR_PWR7">;
 def HasExtDiv : Predicate<"Subtarget->hasExtDiv()">;
 def IsISA2_06 : Predicate<"Subtarget->isISA2_06()">;
 def IsISA2_07 : Predicate<"Subtarget->isISA2_07()">;