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softfloat: Move pick_nan_muladd to softfloat-parts.c.inc 

At the same time, convert to pointers, rename to pick_nan_muladd$N
and define a macro for pick_nan_muladd using QEMU_GENERIC.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2020-10-23 17:12:12 -07:00
parent 22c355f417
commit 979582d071
2 changed files with 53 additions and 40 deletions
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40
fpu/softfloat-parts.c.inc
View File

@ -60,3 +60,43 @@ static FloatPartsN *partsN(pick_nan)(FloatPartsN *a, FloatPartsN *b,
}
return a;
}
static FloatPartsN *partsN(pick_nan_muladd)(FloatPartsN *a, FloatPartsN *b,
FloatPartsN *c, float_status *s,
int ab_mask, int abc_mask)
{
int which;
if (unlikely(abc_mask & float_cmask_snan)) {
float_raise(float_flag_invalid, s);
}
which = pickNaNMulAdd(a->cls, b->cls, c->cls,
ab_mask == float_cmask_infzero, s);
if (s->default_nan_mode || which == 3) {
/*
* Note that this check is after pickNaNMulAdd so that function
* has an opportunity to set the Invalid flag for infzero.
*/
parts_default_nan(a, s);
return a;
}
switch (which) {
case 0:
break;
case 1:
a = b;
break;
case 2:
a = c;
break;
default:
g_assert_not_reached();
}
if (is_snan(a->cls)) {
parts_silence_nan(a, s);
}
return a;
}

53
fpu/softfloat.c
View File

@ -721,6 +721,18 @@ static FloatParts128 *parts128_pick_nan(FloatParts128 *a, FloatParts128 *b,
#define parts_pick_nan(A, B, S) PARTS_GENERIC_64_128(pick_nan, A)(A, B, S)
static FloatParts64 *parts64_pick_nan_muladd(FloatParts64 *a, FloatParts64 *b,
FloatParts64 *c, float_status *s,
int ab_mask, int abc_mask);
static FloatParts128 *parts128_pick_nan_muladd(FloatParts128 *a,
FloatParts128 *b,
FloatParts128 *c,
float_status *s,
int ab_mask, int abc_mask);
#define parts_pick_nan_muladd(A, B, C, S, ABM, ABCM) \
PARTS_GENERIC_64_128(pick_nan_muladd, A)(A, B, C, S, ABM, ABCM)
/*
* Helper functions for softfloat-parts.c.inc, per-size operations.
*/
@ -948,45 +960,6 @@ static FloatParts64 round_canonical(FloatParts64 p, float_status *s,
return p;
}
static FloatParts64 pick_nan_muladd(FloatParts64 a, FloatParts64 b, FloatParts64 c,
bool inf_zero, float_status *s)
{
int which;
if (is_snan(a.cls) || is_snan(b.cls) || is_snan(c.cls)) {
float_raise(float_flag_invalid, s);
}
which = pickNaNMulAdd(a.cls, b.cls, c.cls, inf_zero, s);
if (s->default_nan_mode) {
/* Note that this check is after pickNaNMulAdd so that function
* has an opportunity to set the Invalid flag.
*/
which = 3;
}
switch (which) {
case 0:
break;
case 1:
a = b;
break;
case 2:
a = c;
break;
case 3:
parts_default_nan(&a, s);
break;
default:
g_assert_not_reached();
}
if (is_snan(a.cls)) {
parts_silence_nan(&a, s);
}
return a;
}
#define partsN(NAME) parts64_##NAME
#define FloatPartsN FloatParts64
@ -1497,7 +1470,7 @@ static FloatParts64 muladd_floats(FloatParts64 a, FloatParts64 b, FloatParts64 c
* off to the target-specific pick-a-NaN routine.
*/
if (unlikely(abc_mask & float_cmask_anynan)) {
return pick_nan_muladd(a, b, c, inf_zero, s);
return *parts_pick_nan_muladd(&a, &b, &c, s, ab_mask, abc_mask);
}
if (inf_zero) {