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fpu/softfloat: Pass FloatClass to pickNaN

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For each operand, pass a single enumeration instead of a pair of booleans.
The commit also merges multiple different ifdef-selected implementations
of pickNaN into a single function whose body is ifdef-selected.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2018-05-10 15:21:31 -07:00
parent 247d1f2190
commit 4f251cfd52
2 changed files with 82 additions and 89 deletions
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3
fpu/softfloat.c
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@ -580,8 +580,7 @@ static FloatParts pick_nan(FloatParts a, FloatParts b, float_status *s)
if (s->default_nan_mode) {
return parts_default_nan(s);
} else {
if (pickNaN(is_qnan(a.cls), is_snan(a.cls),
is_qnan(b.cls), is_snan(b.cls),
if (pickNaN(a.cls, b.cls,
a.frac > b.frac ||
(a.frac == b.frac && a.sign < b.sign))) {
a = b;