[gcc r14-2929] x86: fold two of vec_dupv2df<mask_name>'s alternatives

[gcc r14-2929] x86: fold two of vec_dupv2df<mask_name>'s alternatives

[Jan Beulich]

https://gcc.gnu.org/g:68c3aa7510b2f45f44379ecd77e97c88780a84ed

commit r14-2929-g68c3aa7510b2f45f44379ecd77e97c88780a84ed
Author: Jan Beulich <jbeulich@suse.com>
Date:   Wed Aug 2 11:04:37 2023 +0200

    x86: fold two of vec_dupv2df<mask_name>'s alternatives
    
    By using Yvm in the source, both can be expressed in one.
    
    gcc/
    
            * config/i386/sse.md (vec_dupv2df<mask_name>): Fold the middle
            two of the alternatives.

Diff:
---
 gcc/config/i386/sse.md | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
index 43afcfdc750..ab455c3e297 100644
--- a/gcc/config/i386/sse.md
+++ b/gcc/config/i386/sse.md
@@ -13784,21 +13784,20 @@
    (set_attr "mode" "DF,DF,V1DF,V1DF,V1DF,V2DF,V1DF,V1DF,V1DF")])
 
 (define_insn "vec_dupv2df<mask_name>"
-  [(set (match_operand:V2DF 0 "register_operand"     "=x,x,v,v")
+  [(set (match_operand:V2DF 0 "register_operand"     "=x,v,v")
 	(vec_duplicate:V2DF
-	  (match_operand:DF 1 "nonimmediate_operand" "0,xm,vm,vm")))]
+	  (match_operand:DF 1 "nonimmediate_operand" "0,Yvm,vm")))]
   "TARGET_SSE2"
   "@
    unpcklpd\t%0, %0
    %vmovddup\t{%1, %0<mask_operand2>|%0<mask_operand2>, %1}
-   vmovddup\t{%1, %0<mask_operand2>|%0<mask_operand2>, %1}
    vbroadcastsd\t{%1, }%g0<mask_operand2>{|, %1}"
-  [(set_attr "isa" "noavx,sse3,avx512vl,*")
-   (set_attr "type" "sselog1,ssemov,ssemov,ssemov")
-   (set_attr "prefix" "orig,maybe_vex,evex,evex")
-   (set_attr "mode" "V2DF,DF,DF,V8DF")
+  [(set_attr "isa" "noavx,sse3,*")
+   (set_attr "type" "sselog1,ssemov,ssemov")
+   (set_attr "prefix" "orig,maybe_evex,evex")
+   (set_attr "mode" "V2DF,DF,V8DF")
    (set (attr "enabled")
-	(cond [(eq_attr "alternative" "3")
+	(cond [(eq_attr "alternative" "2")
 		 (symbol_ref "TARGET_AVX512F && !TARGET_AVX512VL
 			      && !TARGET_PREFER_AVX256")
 	       (match_test "<mask_avx512vl_condition>")