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i386: fix signed int overflow in #923 & #924

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This commit is contained in:
Nguyen Anh Quynh 2017-12-16 10:28:45 +08:00
parent e6c27cfbd5
commit 3e0d0cfab7
1 changed files with 2 additions and 2 deletions
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4
qemu/target-i386/ops_sse.h
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@ -1417,7 +1417,7 @@ void glue(helper_phaddd, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{ {
d->L(0) = (int32_t)d->L(0) + (int32_t)d->L(1); d->L(0) = (int32_t)d->L(0) + (int32_t)d->L(1);
XMM_ONLY(d->L(1) = (int32_t)d->L(2) + (int32_t)d->L(3)); XMM_ONLY(d->L(1) = (int32_t)d->L(2) + (int32_t)d->L(3));
d->L((1 << SHIFT) + 0) = (int32_t)s->L(0) + (int32_t)s->L(1); d->L((1 << SHIFT) + 0) = (uint32_t)((int32_t)s->L(0) + (int32_t)s->L(1));
XMM_ONLY(d->L(3) = (int32_t)s->L(2) + (int32_t)s->L(3)); XMM_ONLY(d->L(3) = (int32_t)s->L(2) + (int32_t)s->L(3));
} }
@ -1471,7 +1471,7 @@ void glue(helper_phsubd, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{ {
d->L(0) = (int32_t)d->L(0) - (int32_t)d->L(1); d->L(0) = (int32_t)d->L(0) - (int32_t)d->L(1);
XMM_ONLY(d->L(1) = (int32_t)d->L(2) - (int32_t)d->L(3)); XMM_ONLY(d->L(1) = (int32_t)d->L(2) - (int32_t)d->L(3));
d->L((1 << SHIFT) + 0) = (int32_t)s->L(0) - (int32_t)s->L(1); d->L((1 << SHIFT) + 0) = (uint32_t)((int32_t)s->L(0) - (int32_t)s->L(1));
XMM_ONLY(d->L(3) = (int32_t)s->L(2) - (int32_t)s->L(3)); XMM_ONLY(d->L(3) = (int32_t)s->L(2) - (int32_t)s->L(3));
} }