| Message ID | 20241128104310.3452934-21-peter.maydell@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | fpu: Make pickNaNMulAdd behaviour runtime selected | expand |
On 11/28/24 04:43, Peter Maydell wrote: > Set the Float3NaNPropRule explicitly for SPARC, and remove the > ifdef from pickNaNMulAdd(). > > Signed-off-by: Peter Maydell<peter.maydell@linaro.org> > --- > target/sparc/cpu.c | 2 ++ > fpu/softfloat-specialize.c.inc | 2 -- > 2 files changed, 2 insertions(+), 2 deletions(-) Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
diff --git a/target/sparc/cpu.c b/target/sparc/cpu.c index 61f2d3fbf23..0f2997a85e6 100644 --- a/target/sparc/cpu.c +++ b/target/sparc/cpu.c @@ -814,6 +814,8 @@ static void sparc_cpu_realizefn(DeviceState *dev, Error **errp) * the CPU state struct so it won't get zeroed on reset. */ set_float_2nan_prop_rule(float_2nan_prop_s_ba, &env->fp_status); + /* For fused-multiply add, prefer SNaN over QNaN, then C->B->A */ + 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); diff --git a/fpu/softfloat-specialize.c.inc b/fpu/softfloat-specialize.c.inc index 31b23ddb9bb..565790b1834 100644 --- a/fpu/softfloat-specialize.c.inc +++ b/fpu/softfloat-specialize.c.inc @@ -508,8 +508,6 @@ static int pickNaNMulAdd(FloatClass a_cls, FloatClass b_cls, FloatClass c_cls, } else { rule = float_3nan_prop_s_cab; } -#elif defined(TARGET_SPARC) - rule = float_3nan_prop_s_cba; #elif defined(TARGET_XTENSA) if (status->use_first_nan) { rule = float_3nan_prop_abc;
Set the Float3NaNPropRule explicitly for SPARC, and remove the ifdef from pickNaNMulAdd(). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/sparc/cpu.c | 2 ++ fpu/softfloat-specialize.c.inc | 2 -- 2 files changed, 2 insertions(+), 2 deletions(-)