[llvm] a6e5616 - [RISCV] Modify operand regclass in load store patterns (#133071)
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Thu Mar 27 04:50:28 PDT 2025
Author: Sudharsan Veeravalli
Date: 2025-03-27T17:20:25+05:30
New Revision: a6e56162c251db180f4618202c8088acba311ce8
URL: https://github.com/llvm/llvm-project/commit/a6e56162c251db180f4618202c8088acba311ce8
DIFF: https://github.com/llvm/llvm-project/commit/a6e56162c251db180f4618202c8088acba311ce8.diff
LOG: [RISCV] Modify operand regclass in load store patterns (#133071)
$rs1 is defined as GPRMem in the correspoding instruction definition
classes.
Added:
Modified:
llvm/lib/Target/RISCV/RISCVInstrInfo.td
Removed:
################################################################################
diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfo.td b/llvm/lib/Target/RISCV/RISCVInstrInfo.td
index 253f24aa0d68d..b61992298ca95 100644
--- a/llvm/lib/Target/RISCV/RISCVInstrInfo.td
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfo.td
@@ -1836,8 +1836,8 @@ def PseudoZEXT_W : Pseudo<(outs GPR:$rd), (ins GPR:$rs), [], "zext.w", "$rd, $rs
/// Loads
class LdPat<PatFrag LoadOp, RVInst Inst, ValueType vt = XLenVT>
- : Pat<(vt (LoadOp (AddrRegImm (XLenVT GPR:$rs1), simm12:$imm12))),
- (Inst GPR:$rs1, simm12:$imm12)>;
+ : Pat<(vt (LoadOp (AddrRegImm (XLenVT GPRMem:$rs1), simm12:$imm12))),
+ (Inst GPRMem:$rs1, simm12:$imm12)>;
def : LdPat<sextloadi8, LB>;
def : LdPat<extloadi8, LBU>; // Prefer unsigned due to no c.lb in Zcb.
@@ -1851,9 +1851,9 @@ def : LdPat<zextloadi16, LHU>;
class StPat<PatFrag StoreOp, RVInst Inst, RegisterClass StTy,
ValueType vt>
- : Pat<(StoreOp (vt StTy:$rs2), (AddrRegImm (XLenVT GPR:$rs1),
+ : Pat<(StoreOp (vt StTy:$rs2), (AddrRegImm (XLenVT GPRMem:$rs1),
simm12:$imm12)),
- (Inst StTy:$rs2, GPR:$rs1, simm12:$imm12)>;
+ (Inst StTy:$rs2, GPRMem:$rs1, simm12:$imm12)>;
def : StPat<truncstorei8, SB, GPR, XLenVT>;
def : StPat<truncstorei16, SH, GPR, XLenVT>;
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