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target-i386: fix round{pd,ps,sd,ss} SSE2 instructions 

roundps and roundss SSE2 instructions have been broken when switching
target-i386 to softfloat. They use float64_round_to_int to convert a
float32, and while the implicit conversion from float32 to float64 was
correct for softfloat-native, it is not for pure softfloat. Fix that by
using the correct registers and correct functions.

Also fix roundpd and roundsd implementation at the same time, even if
these functions are behaving correctly.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2012-01-07 15:20:11 +01:00
parent a4d1f14254
commit adc7166611
1 changed files with 8 additions and 8 deletions
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16
target-i386/ops_sse.h
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@ -1653,10 +1653,10 @@ void glue(helper_roundps, SUFFIX) (Reg *d, Reg *s, uint32_t mode)
break;
}
d->L(0) = float64_round_to_int(s->L(0), &env->sse_status);
d->L(1) = float64_round_to_int(s->L(1), &env->sse_status);
d->L(2) = float64_round_to_int(s->L(2), &env->sse_status);
d->L(3) = float64_round_to_int(s->L(3), &env->sse_status);
d->XMM_S(0) = float32_round_to_int(s->XMM_S(0), &env->sse_status);
d->XMM_S(1) = float32_round_to_int(s->XMM_S(1), &env->sse_status);
d->XMM_S(2) = float32_round_to_int(s->XMM_S(2), &env->sse_status);
d->XMM_S(3) = float32_round_to_int(s->XMM_S(3), &env->sse_status);
#if 0 /* TODO */
if (mode & (1 << 3))
@ -1689,8 +1689,8 @@ void glue(helper_roundpd, SUFFIX) (Reg *d, Reg *s, uint32_t mode)
break;
}
d->Q(0) = float64_round_to_int(s->Q(0), &env->sse_status);
d->Q(1) = float64_round_to_int(s->Q(1), &env->sse_status);
d->XMM_D(0) = float64_round_to_int(s->XMM_D(0), &env->sse_status);
d->XMM_D(1) = float64_round_to_int(s->XMM_D(1), &env->sse_status);
#if 0 /* TODO */
if (mode & (1 << 3))
@ -1723,7 +1723,7 @@ void glue(helper_roundss, SUFFIX) (Reg *d, Reg *s, uint32_t mode)
break;
}
d->L(0) = float64_round_to_int(s->L(0), &env->sse_status);
d->XMM_S(0) = float32_round_to_int(s->XMM_S(0), &env->sse_status);
#if 0 /* TODO */
if (mode & (1 << 3))
@ -1756,7 +1756,7 @@ void glue(helper_roundsd, SUFFIX) (Reg *d, Reg *s, uint32_t mode)
break;
}
d->Q(0) = float64_round_to_int(s->Q(0), &env->sse_status);
d->XMM_D(0) = float64_round_to_int(s->XMM_D(0), &env->sse_status);
#if 0 /* TODO */
if (mode & (1 << 3))