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softfloat: Pass have_snan to pickNaNMulAdd

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The new implementation of pickNaNMulAdd() will find it convenient
to know whether at least one of the three arguments to the muladd
was a signaling NaN. We already calculate that in the caller,
so pass it in as a new bool have_snan.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241202131347.498124-15-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2024-12-11 15:30:57 +00:00
parent 2bf5629c97
commit d62c734d52
2 changed files with 4 additions and 3 deletions
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2
fpu/softfloat-specialize.c.inc
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@ -473,7 +473,7 @@ static int pickNaN(FloatClass a_cls, FloatClass b_cls,
| Return values : 0 : a; 1 : b; 2 : c; 3 : default-NaN
*----------------------------------------------------------------------------*/
static int pickNaNMulAdd(FloatClass a_cls, FloatClass b_cls, FloatClass c_cls,
bool infzero, float_status *status)
bool infzero, bool have_snan, float_status *status)
{
/*
* We guarantee not to require the target to tell us how to