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DUALNUM: Fix narrowing of unary minus.

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Reported by Sergey Kaplun. #1418
This commit is contained in:
Mike Pall
2025-12-06 08:39:11 +01:00
parent 53d014fea8
commit b1cd2f83b5
1 changed files with 2 additions and 2 deletions
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4
src/lj_opt_narrow.c
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@@ -545,9 +545,9 @@ TRef lj_opt_narrow_unm(jit_State *J, TRef rc, TValue *vc)
rc = conv_str_tonum(J, rc, vc); rc = conv_str_tonum(J, rc, vc);
if (tref_isinteger(rc)) { if (tref_isinteger(rc)) {
uint32_t k = (uint32_t)numberVint(vc); uint32_t k = (uint32_t)numberVint(vc);
if ((LJ_DUALNUM || k != 0) && k != 0x80000000u) { if ((tvisint(vc) || k != 0) && k != 0x80000000u) {
TRef zero = lj_ir_kint(J, 0); TRef zero = lj_ir_kint(J, 0);
if (!LJ_DUALNUM) if (!tvisint(vc))
emitir(IRTGI(IR_NE), rc, zero); emitir(IRTGI(IR_NE), rc, zero);
return emitir(IRTGI(IR_SUBOV), zero, rc); return emitir(IRTGI(IR_SUBOV), zero, rc);
} }