[backend-fma]添加浮点乘加融合优化，提供开关简单控制是否启用

2025-08-17 00:07:04 +08:00
parent 7be5d25372
commit 07fd22def1
6 changed files with 115 additions and 3 deletions
--- a/src/backend/RISCv64/RISCv64AsmPrinter.cpp
+++ b/src/backend/RISCv64/RISCv64AsmPrinter.cpp
@@ -79,6 +79,7 @@ void RISCv64AsmPrinter::printInstruction(MachineInstr* instr, bool debug) {
        case RVOpcodes::FSUB_S:  *OS << "fsub.s ";  break;
        case RVOpcodes::FMUL_S:  *OS << "fmul.s ";  break;
        case RVOpcodes::FDIV_S:  *OS << "fdiv.s ";  break;
+        case RVOpcodes::FMADD_S: *OS << "fmadd.s "; break;
        case RVOpcodes::FNEG_S:  *OS << "fneg.s ";  break;
        case RVOpcodes::FEQ_S:   *OS << "feq.s ";   break;
        case RVOpcodes::FLT_S:   *OS << "flt.s ";   break;