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Fix INT64_MIN modulo -1 #404

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Merged
tolauwae merged 1 commit into from
Aug 13, 2026
Merged

Fix INT64_MIN modulo -1 #404

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4 changes: 2 additions & 2 deletions src/Interpreter/instructions.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1052,7 +1052,7 @@ bool i_instr_binary_i64(Module *m, uint8_t opcode) {
f = d * e;
break; // i64.mul
case 0x7f:
if (d == 0x8000000000000000 && e == (uint32_t)-1) {
if (d == 0x8000000000000000ULL && e == UINT64_MAX) {
sprintf(exception, "integer overflow");
return false;
}
Expand All @@ -1062,7 +1062,7 @@ bool i_instr_binary_i64(Module *m, uint8_t opcode) {
f = d / e;
break; // i64.div_u
case 0x81:
if (d == 0x8000000000000000 && e == (uint32_t)-1) {
if (d == 0x8000000000000000ULL && e == UINT64_MAX) {
f = 0;
} else {
f = (int64_t)d % (int64_t)e;
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