[RISCV] Implement isLegalICmpImmediate
I'm unable to construct a representative test case that demonstrates the
advantage, but it seems sensible to report accurate target-specific
information regardless.
llvm-svn: 330938
diff --git a/llvm/lib/Target/RISCV/RISCVISelLowering.h b/llvm/lib/Target/RISCV/RISCVISelLowering.h
index 7e4a134..dccd031 100644
--- a/llvm/lib/Target/RISCV/RISCVISelLowering.h
+++ b/llvm/lib/Target/RISCV/RISCVISelLowering.h
@@ -42,6 +42,7 @@
bool isLegalAddressingMode(const DataLayout &DL, const AddrMode &AM, Type *Ty,
unsigned AS,
Instruction *I = nullptr) const override;
+ bool isLegalICmpImmediate(int64_t Imm) const override;
bool isLegalAddImmediate(int64_t Imm) const override;
// Provide custom lowering hooks for some operations.