27 lines
606 B
C++
27 lines
606 B
C++
#include "irgen/IRGen.h"
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#include <stdexcept>
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#include "SysYParser.h"
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#include "ir/IR.h"
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bool IRGenImpl::GenStmt(SysYParser::StmtContext& stmt) {
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if (stmt.varDecl()) {
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GenVarDecl(*stmt.varDecl());
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return false;
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}
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if (stmt.returnStmt()) {
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GenReturnStmt(*stmt.returnStmt());
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return true;
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}
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throw std::runtime_error("[irgen] 暂不支持的语句类型");
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}
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void IRGenImpl::GenReturnStmt(SysYParser::ReturnStmtContext& ret) {
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if (!ret.exp()) {
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throw std::runtime_error("[irgen] return 缺少表达式");
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}
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ir::Value* v = GenExpr(*ret.exp());
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builder_.CreateRet(v);
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}
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