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| author | Richard Henderson <richard.henderson@linaro.org> | 2024-12-11 15:31:08 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2024-12-11 15:31:08 +0000 |
| commit | e00286187630b81fb3360d560ff7a6ca90f7191f (patch) | |
| tree | 58b924be69b72d7c60528a860497c962c7cda025 | |
| parent | f73bd7503def86ab322a8df560b00ef67e08ce6e (diff) | |
| download | qemu-e00286187630b81fb3360d560ff7a6ca90f7191f.zip qemu-e00286187630b81fb3360d560ff7a6ca90f7191f.tar.gz qemu-e00286187630b81fb3360d560ff7a6ca90f7191f.tar.bz2 | |
softfloat: Use goto for default nan case in pick_nan_muladd
Remove "3" as a special case for which and simply
branch to return the desired value.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20241203203949.483774-4-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| -rw-r--r-- | fpu/softfloat-parts.c.inc | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/fpu/softfloat-parts.c.inc b/fpu/softfloat-parts.c.inc index c1a97c3..be7e931 100644 --- a/fpu/softfloat-parts.c.inc +++ b/fpu/softfloat-parts.c.inc @@ -85,7 +85,7 @@ static FloatPartsN *partsN(pick_nan_muladd)(FloatPartsN *a, FloatPartsN *b, * But if we're not in default-NaN mode then the target must * specify. */ - which = 3; + goto default_nan; } else if (infzero) { /* * Inf * 0 + NaN -- some implementations return the @@ -93,17 +93,18 @@ static FloatPartsN *partsN(pick_nan_muladd)(FloatPartsN *a, FloatPartsN *b, */ switch (s->float_infzeronan_rule) { case float_infzeronan_dnan_never: - which = 2; break; case float_infzeronan_dnan_always: - which = 3; - break; + goto default_nan; case float_infzeronan_dnan_if_qnan: - which = is_qnan(c->cls) ? 3 : 2; + if (is_qnan(c->cls)) { + goto default_nan; + } break; default: g_assert_not_reached(); } + which = 2; } else { FloatClass cls[3] = { a->cls, b->cls, c->cls }; Float3NaNPropRule rule = s->float_3nan_prop_rule; @@ -123,11 +124,6 @@ static FloatPartsN *partsN(pick_nan_muladd)(FloatPartsN *a, FloatPartsN *b, } } - if (which == 3) { - parts_default_nan(a, s); - return a; - } - switch (which) { case 0: break; @@ -144,6 +140,10 @@ static FloatPartsN *partsN(pick_nan_muladd)(FloatPartsN *a, FloatPartsN *b, parts_silence_nan(a, s); } return a; + + default_nan: + parts_default_nan(a, s); + return a; } /* |