Re: [PATCH] x86: Check TARGET_AVX512VL when enabling FMA

[Jakub Jelinek via Gcc-patches]

On Thu, Jul 09, 2020 at 03:02:35PM -0700, H.J. Lu via Gcc-patches wrote:
--- a/gcc/config/i386/i386-expand.c
+++ b/gcc/config/i386/i386-expand.c
@@ -15540,7 +15540,11 @@ void ix86_emit_swsqrtsf (rtx res, rtx a, machine_mode 
mode, bool recip)
   /* e0 = x0 * a */
   emit_insn (gen_rtx_SET (e0, gen_rtx_MULT (mode, x0, a)));
 
-  if (TARGET_FMA || TARGET_AVX512F)
+  unsigned vector_size = GET_MODE_SIZE (mode);
+  if (TARGET_FMA
+      || (TARGET_AVX512F && vector_size == 64)
+      || (TARGET_AVX512VL && (vector_size == 32 || vector_size == 16)))
+
     emit_insn (gen_rtx_SET (e2,

Why the empty line in there?
Ok for trunk with that fixed.

                            gen_rtx_FMA (mode, e0, x0, mthree)));
   else
-- 
2.26.2



        Jakub