diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/SystemZ/SystemZISelLowering.cpp | 1 | ||||
| -rw-r--r-- | llvm/lib/Target/SystemZ/SystemZISelLowering.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp index 4e9ee7feac6..583602506c7 100644 --- a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp +++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp @@ -249,6 +249,7 @@ SystemZTargetLowering::SystemZTargetLowering(const TargetMachine &TM, // We have native support for a 64-bit CTLZ, via FLOGR. setOperationAction(ISD::CTLZ, MVT::i32, Promote); + setOperationAction(ISD::CTLZ_ZERO_UNDEF, MVT::i32, Promote); setOperationAction(ISD::CTLZ, MVT::i64, Legal); // Give LowerOperation the chance to replace 64-bit ORs with subregs. diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.h b/llvm/lib/Target/SystemZ/SystemZISelLowering.h index a40eb4cbc2a..1be94836138 100644 --- a/llvm/lib/Target/SystemZ/SystemZISelLowering.h +++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.h @@ -391,6 +391,7 @@ public: return TypeWidenVector; return TargetLoweringBase::getPreferredVectorAction(VT); } + bool isCheapToSpeculateCtlz() const override { return true; } EVT getSetCCResultType(const DataLayout &DL, LLVMContext &, EVT) const override; bool isFMAFasterThanFMulAndFAdd(EVT VT) const override; |
