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target-ppc: simplify NaN propagation for vector functions 

Commit e024e881bb provided a pickNaN()
function for PowerPC, implementing the correct NaN propagation rules.
Therefore there is no need to test the operands manually, we can rely
on the softfloat code to do that.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Aurelien Jarno 2012-09-11 08:47:10 +00:00 committed by Alexander Graf
parent 794d00bfc7
commit ef9bd1507b
1 changed files with 7 additions and 19 deletions
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12
target-ppc/int_helper.c
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@ -409,10 +409,8 @@ VARITH(uwm, u32)
int i; \
\
for (i = 0; i < ARRAY_SIZE(r->f); i++) { \
HANDLE_NAN2(r->f[i], a->f[i], b->f[i]) { \
r->f[i] = func(a->f[i], b->f[i], &env->vec_status); \
} \
} \
}
VARITHFP(addfp, float32_add)
VARITHFP(subfp, float32_sub)
@ -1039,11 +1037,9 @@ void helper_vrefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b)
int i;
for (i = 0; i < ARRAY_SIZE(r->f); i++) {
HANDLE_NAN1(r->f[i], b->f[i]) {
r->f[i] = float32_div(float32_one, b->f[i], &env->vec_status);
}
}
}
#define VRFI(suffix, rounding) \
void helper_vrfi##suffix(CPUPPCState *env, ppc_avr_t *r, \
@ -1054,10 +1050,8 @@ void helper_vrefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b)
\
set_float_rounding_mode(rounding, &s); \
for (i = 0; i < ARRAY_SIZE(r->f); i++) { \
HANDLE_NAN1(r->f[i], b->f[i]) { \
r->f[i] = float32_round_to_int (b->f[i], &s); \
} \
} \
}
VRFI(n, float_round_nearest_even)
VRFI(m, float_round_down)
@ -1089,13 +1083,11 @@ void helper_vrsqrtefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b)
int i;
for (i = 0; i < ARRAY_SIZE(r->f); i++) {
HANDLE_NAN1(r->f[i], b->f[i]) {
float32 t = float32_sqrt(b->f[i], &env->vec_status);
r->f[i] = float32_div(float32_one, t, &env->vec_status);
}
}
}
void helper_vsel(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b,
ppc_avr_t *c)
@ -1109,22 +1101,18 @@ void helper_vexptefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b)
int i;
for (i = 0; i < ARRAY_SIZE(r->f); i++) {
HANDLE_NAN1(r->f[i], b->f[i]) {
r->f[i] = float32_exp2(b->f[i], &env->vec_status);
}
}
}
void helper_vlogefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b)
{
int i;
for (i = 0; i < ARRAY_SIZE(r->f); i++) {
HANDLE_NAN1(r->f[i], b->f[i]) {
r->f[i] = float32_log2(b->f[i], &env->vec_status);
}
}
}
#if defined(HOST_WORDS_BIGENDIAN)
#define LEFT 0