[RFC,08/15] softfloat: Tidy a * b + inf return

Commit Message

Richard Henderson Oct. 21, 2020, 4:51 a.m. UTC

No reason to set values in 'a', when we already
have float_class_inf in 'c', and can flip that sign.

Reviewed-by: Philippe Mathieu-Daudé <[e-mail]>
Reviewed-by: Alex Bennée <[e-mail]>
Reviewed-by: David Hildenbrand <[e-mail]>
Signed-off-by: Richard Henderson <[e-mail]>
---
 fpu/softfloat.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

Patch

diff --git a/fpu/softfloat.c b/fpu/softfloat.c
index 67cfa0fd82..9db55d2b11 100644
--- a/fpu/softfloat.c
+++ b/fpu/softfloat.c
@@ -1380,9 +1380,8 @@  static FloatParts muladd_floats(FloatParts a, FloatParts b, FloatParts c,
             s->float_exception_flags |= float_flag_invalid;
             return parts_default_nan(s);
         } else {
-            a.cls = float_class_inf;
-            a.sign = c.sign ^ sign_flip;
-            return a;
+            c.sign ^= sign_flip;
+            return c;
         }
     }