commit 2eca1928f9afb7cbc8e72a59dffb964c8319469a
author Richard Henderson <richard.henderson@linaro.org> Sun Dec 08 13:51:04 2024 -0600
committer Richard Henderson <richard.henderson@linaro.org> Tue Dec 24 08:32:15 2024 -0800
tree 0c8e0e45061f23dd3ca12e81a25accbcbda8f228
parent 655a83cac128574c7ea386042f8eefa5be5708e5

target/hexagon: Use float32_muladd for helper_sffms

There are no special cases for this instruction.  Since hexagon
always uses default-nan mode, explicitly negating the first
input is unnecessary.  Use float_muladd_negate_product instead.

Reviewed-by: Brian Cain <brian.cain@oss.qualcomm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/hexagon/op_helper.c

diff --git a/target/hexagon/op_helper.c b/target/hexagon/op_helper.c
index 15b143a..95bfa5d 100644
--- a/target/hexagon/op_helper.c
+++ b/target/hexagon/op_helper.c
@@ -1096,10 +1096,9 @@
 float32 HELPER(sffms)(CPUHexagonState *env, float32 RxV,
                       float32 RsV, float32 RtV)
 {
-    float32 neg_RsV;
     arch_fpop_start(env);
-    neg_RsV = float32_set_sign(RsV, float32_is_neg(RsV) ? 0 : 1);
-    RxV = internal_fmafx(neg_RsV, RtV, RxV, 0, &env->fp_status);
+    RxV = float32_muladd(RsV, RtV, RxV, float_muladd_negate_product,
+                         &env->fp_status);
     arch_fpop_end(env);
     return RxV;
 }