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target/hexagon: Use float32_muladd for helper_sffms

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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>
This commit is contained in:
Richard Henderson 2024-12-08 13:51:04 -06:00
parent 655a83cac1
commit 2eca1928f9
1 changed files with 2 additions and 3 deletions
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target/hexagon/op_helper.c
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@ -1096,10 +1096,9 @@ float32 HELPER(sffma_sc)(CPUHexagonState *env, float32 RxV,
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;
}