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[Qemu-devel] [PATCH v2 2/5] target-ppc: simplify NaN propagation for vec
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH v2 2/5] target-ppc: simplify NaN propagation for vector functions |
Date: |
Tue, 11 Sep 2012 20:47:10 +0200 |
Commit e024e881bb1a8b5085026589360d26ed97acdd64 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.
Cc: Alexander Graf <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>
---
target-ppc/int_helper.c | 26 +++++++-------------------
1 file changed, 7 insertions(+), 19 deletions(-)
diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c
index f638b2a..5b2a3c8 100644
--- a/target-ppc/int_helper.c
+++ b/target-ppc/int_helper.c
@@ -409,9 +409,7 @@ 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); \
- } \
+ r->f[i] = func(a->f[i], b->f[i], &env->vec_status); \
} \
}
VARITHFP(addfp, float32_add)
@@ -1039,9 +1037,7 @@ 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);
- }
+ r->f[i] = float32_div(float32_one, b->f[i], &env->vec_status);
}
}
@@ -1054,9 +1050,7 @@ 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); \
- } \
+ r->f[i] = float32_round_to_int (b->f[i], &s); \
} \
}
VRFI(n, float_round_nearest_even)
@@ -1089,11 +1083,9 @@ 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);
+ float32 t = float32_sqrt(b->f[i], &env->vec_status);
- r->f[i] = float32_div(float32_one, t, &env->vec_status);
- }
+ r->f[i] = float32_div(float32_one, t, &env->vec_status);
}
}
@@ -1109,9 +1101,7 @@ 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);
- }
+ r->f[i] = float32_exp2(b->f[i], &env->vec_status);
}
}
@@ -1120,9 +1110,7 @@ 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);
- }
+ r->f[i] = float32_log2(b->f[i], &env->vec_status);
}
}
--
1.7.10.4
- [Qemu-devel] [PATCH v2 0/5] target-ppc: get rid of manual NaN handling in vector functions, Aurelien Jarno, 2012/09/11
- [Qemu-devel] [PATCH v2 5/5] target-ppc: get rid of the HANDLE_NAN{1, 2, 3} macros, Aurelien Jarno, 2012/09/11
- [Qemu-devel] [PATCH v2 1/5] softfloat: make float_muladd_negate_* flags independent, Aurelien Jarno, 2012/09/11
- [Qemu-devel] [PATCH v2 4/5] target-ppc: use the softfloat float32_muladd function, Aurelien Jarno, 2012/09/11
- [Qemu-devel] [PATCH v2 3/5] target-ppc: use the softfloat min/max functions, Aurelien Jarno, 2012/09/11
- [Qemu-devel] [PATCH v2 2/5] target-ppc: simplify NaN propagation for vector functions,
Aurelien Jarno <=