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fix invalid memory access

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r4 2021-12-28 13:39:59 +01:00
parent 22f71d7e56
commit 0d5313a063
1 changed files with 1 additions and 1 deletions
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2
ir.c
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@ -143,7 +143,7 @@ void optimize_ir(IRToks *v) {
case IRJmp: { case IRJmp: {
/* resolve jump chains (esp. produced by if-else-if... statements) */ /* resolve jump chains (esp. produced by if-else-if... statements) */
size_t ja = i; size_t ja = i;
while (v->toks[ja].instr == IRJmp) while (ja < v->len && v->toks[ja].instr == IRJmp)
ja = v->toks[ja].Jmp.iaddr; ja = v->toks[ja].Jmp.iaddr;
v->toks[i].Jmp.iaddr = ja; v->toks[i].Jmp.iaddr = ja;
} }