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softfloat: Do not produce a default_nan from parts_silence_nan

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Require default_nan_mode to be set instead.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2020-10-22 09:23:46 -07:00
parent e9e5534ff3
commit a777d60334
1 changed files with 5 additions and 6 deletions
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11
fpu/softfloat-specialize.c.inc
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@ -179,16 +179,15 @@ static FloatParts parts_default_nan(float_status *status)
static FloatParts parts_silence_nan(FloatParts a, float_status *status) static FloatParts parts_silence_nan(FloatParts a, float_status *status)
{ {
g_assert(!no_signaling_nans(status)); g_assert(!no_signaling_nans(status));
#if defined(TARGET_HPPA) g_assert(!status->default_nan_mode);
a.frac &= ~(1ULL << (DECOMPOSED_BINARY_POINT - 1));
a.frac |= 1ULL << (DECOMPOSED_BINARY_POINT - 2); /* The only snan_bit_is_one target without default_nan_mode is HPPA. */
#else
if (snan_bit_is_one(status)) { if (snan_bit_is_one(status)) {
return parts_default_nan(status); a.frac &= ~(1ULL << (DECOMPOSED_BINARY_POINT - 1));
a.frac |= 1ULL << (DECOMPOSED_BINARY_POINT - 2);
} else { } else {
a.frac |= 1ULL << (DECOMPOSED_BINARY_POINT - 1); a.frac |= 1ULL << (DECOMPOSED_BINARY_POINT - 1);
} }
#endif
a.cls = float_class_qnan; a.cls = float_class_qnan;
return a; return a;
} }