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

Message ID 20201021045149.1582203-9-richard.henderson@linaro.org
State Accepted
Commit 9793c1e224a30252dfa7ca3c1f7a5c4827ca4cfc
Headers show
Series softfloat: alternate conversion of float128_addsub | expand

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 <f4bug@amsat.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 fpu/softfloat.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
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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;
         }
     }