[TargetLowering] Rename preferShiftsToClearExtremeBits and shouldFoldShiftPairToMask (PR41359)

As discussed on PR41359, this patch renames the pair of shift-mask target feature functions to make their purposes more obvious.

shouldFoldShiftPairToMask -> shouldFoldConstantShiftPairToMask

preferShiftsToClearExtremeBits -> shouldFoldMaskToVariableShiftPair

llvm-svn: 358526

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Target/Mips/MipsISelLowering.cpp b/llvm/lib/Target/Mips/MipsISelLowering.cpp
index f942d3f97ae..99de079788e 100644
--- a/llvm/lib/Target/Mips/MipsISelLowering.cpp
+++ b/llvm/lib/Target/Mips/MipsISelLowering.cpp
@@ -1190,8 +1190,8 @@ bool MipsTargetLowering::isCheapToSpeculateCtlz() const {
   return Subtarget.hasMips32();
 }
 
-bool MipsTargetLowering::shouldFoldShiftPairToMask(const SDNode *N,
-                                                   CombineLevel Level) const {
+bool MipsTargetLowering::shouldFoldConstantShiftPairToMask(
+    const SDNode *N, CombineLevel Level) const {
   if (N->getOperand(0).getValueType().isVector())
     return false;
   return true;