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fpu: Remove default handling for dnan_pattern

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Now that all our targets have bene converted to explicitly specify
their pattern for the default NaN value we can remove the remaining
fallback code in parts64_default_nan().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241202131347.498124-55-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2024-12-11 15:31:08 +00:00
parent d921f8fd56
commit 86bb2f44cd
1 changed files with 0 additions and 14 deletions
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14
fpu/softfloat-specialize.c.inc
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@ -135,20 +135,6 @@ static void parts64_default_nan(FloatParts64 *p, float_status *status)
uint64_t frac;
uint8_t dnan_pattern = status->default_nan_pattern;
if (dnan_pattern == 0) {
/*
* This case is true for Alpha, ARM, MIPS, OpenRISC, PPC, RISC-V,
* S390, SH4, TriCore, and Xtensa. Our other supported targets
* do not have floating-point.
*/
if (snan_bit_is_one(status)) {
/* sign bit clear, set all frac bits other than msb */
dnan_pattern = 0b00111111;
} else {
/* sign bit clear, set frac msb */
dnan_pattern = 0b01000000;
}
}
assert(dnan_pattern != 0);
sign = dnan_pattern >> 7;