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Fix dumbing bug

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Mid 2025-10-02 13:46:08 +03:00
parent 1177462bda
commit 2f67a6f109
1 changed files with 7 additions and 7 deletions
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12
src/x86/dumberdowner.c
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@ -109,6 +109,10 @@ static void mark_d(ScopeItem *si) {
} }
} }
/*
* RULE ONE OF DUMBING: NEVER xopify NOR varify MORE THAN ONCE IN A SINGLE CALL TO VISITOR!!!
* IF YOU DO THIS, stmtPrev WILL FUCK UP AND STATEMENTS WILL BE LOST
*/
struct DumbenState { struct DumbenState {
AST *targetTLC; AST *targetTLC;
int effective; int effective;
@ -129,14 +133,10 @@ static void dumben_visitor(AST **nptr, AST *stmt, AST *stmtPrev, AST *chu, AST *
if(is_xop(e->exprBinOp.operands[0]) == XOP_NOT_XOP) { if(is_xop(e->exprBinOp.operands[0]) == XOP_NOT_XOP) {
e->exprBinOp.operands[0] = xopify(tlc, chu, stmtPrev, s, e->exprBinOp.operands[0]); e->exprBinOp.operands[0] = xopify(tlc, chu, stmtPrev, s, e->exprBinOp.operands[0]);
this->effective = 1; this->effective = 1;
} } else if(is_xop(e->exprBinOp.operands[1]) == XOP_NOT_XOP) {
if(is_xop(e->exprBinOp.operands[1]) == XOP_NOT_XOP) {
e->exprBinOp.operands[1] = xopify(tlc, chu, stmtPrev, s, e->exprBinOp.operands[1]); e->exprBinOp.operands[1] = xopify(tlc, chu, stmtPrev, s, e->exprBinOp.operands[1]);
this->effective = 1; this->effective = 1;
} } else if(is_xop(e->exprBinOp.operands[0]) == XOP_MEM && is_xop(e->exprBinOp.operands[1]) == XOP_MEM) {
if(is_xop(e->exprBinOp.operands[0]) == XOP_MEM && is_xop(e->exprBinOp.operands[1]) == XOP_MEM) {
// Can't have two mems; put one in var // Can't have two mems; put one in var
e->exprBinOp.operands[1] = varify(tlc, chu, stmtPrev, s, e->exprBinOp.operands[1]); e->exprBinOp.operands[1] = varify(tlc, chu, stmtPrev, s, e->exprBinOp.operands[1]);