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[midend-Loop-InductionVarStrengthReduction]支持了对部分除法运算取模运算的归纳变量的强度削弱策略。（mulh+魔数，负数2的幂次除法符号修正，2的幂次取模运算and优化）。增加了了Printer对移位指令的打印支持

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This commit is contained in:
rain2133
2025-08-13 17:41:41 +08:00
parent cd27f5fda9
commit 8b5123460b
4 changed files with 607 additions and 45 deletions
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4
src/midend/SysYIRPrinter.cpp
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@@ -240,6 +240,8 @@ void SysYPrinter::printInst(Instruction *pInst) {
case Kind::kMul:
case Kind::kDiv:
case Kind::kRem:
case Kind::kSrl:
case Kind::kSll:
case Kind::kSra:
case Kind::kMulh:
case Kind::kFAdd:
@@ -274,6 +276,8 @@ void SysYPrinter::printInst(Instruction *pInst) {
case Kind::kMul: std::cout << "mul"; break;
case Kind::kDiv: std::cout << "sdiv"; break;
case Kind::kRem: std::cout << "srem"; break;
case Kind::kSrl: std::cout << "lshr"; break;
case Kind::kSll: std::cout << "shl"; break;
case Kind::kSra: std::cout << "ashr"; break;
case Kind::kMulh: std::cout << "mulh"; break;
case Kind::kFAdd: std::cout << "fadd"; break;