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target/sparc: Set default NaN pattern explicitly

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Set the default NaN pattern explicitly for SPARC, and remove
the ifdef from parts64_default_nan.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241202131347.498124-50-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2024-12-11 15:31:07 +00:00
parent 5ab49c3a09
commit 45fb2cd61e
2 changed files with 3 additions and 4 deletions
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5
fpu/softfloat-specialize.c.inc
View file

@ -136,10 +136,7 @@ static void parts64_default_nan(FloatParts64 *p, float_status *status)
uint8_t dnan_pattern = status->default_nan_pattern;
if (dnan_pattern == 0) {
#if defined(TARGET_SPARC)
/* Sign bit clear, all frac bits set */
dnan_pattern = 0b01111111;
#elif defined(TARGET_HEXAGON)
#if defined(TARGET_HEXAGON)
/* Sign bit set, all frac bits set. */
dnan_pattern = 0b11111111;
#else

2
target/sparc/cpu.c
View file

@ -818,6 +818,8 @@ static void sparc_cpu_realizefn(DeviceState *dev, Error **errp)
set_float_3nan_prop_rule(float_3nan_prop_s_cba, &env->fp_status);
/* For inf * 0 + NaN, return the input NaN */
set_float_infzeronan_rule(float_infzeronan_dnan_never, &env->fp_status);
/* Default NaN value: sign bit clear, all frac bits set */
set_float_default_nan_pattern(0b01111111, &env->fp_status);
cpu_exec_realizefn(cs, &local_err);
if (local_err != NULL) {