[gcc(refs/users/meissner/heads/work120)] Allow variable element vec_extract to be loaded into vector registers.

[gcc(refs/users/meissner/heads/work120)] Allow variable element vec_extract to be loaded into vector registers.

[Michael Meissner]

https://gcc.gnu.org/g:cf6c9e6421d08e310767571d97c8b3967a7ba0c2

commit cf6c9e6421d08e310767571d97c8b3967a7ba0c2
Author: Michael Meissner <meissner@linux.ibm.com>
Date:   Mon May 1 17:46:24 2023 -0400

    Allow variable element vec_extract to be loaded into vector registers.
    
    This patch allows vec_extract of V4SI, V8HI, and V16QI vector types with a
    variable element number to be loaded into vector registers directly.
    
    2023-05-1   Michael Meissner  <meissner@linux.ibm.com>
    
    gcc/
    
            * config/rs6000/vsx.md (vsx_extract_<mode>_var_load): Allow vector
            registers to be loaded.

Diff:
---
 gcc/config/rs6000/vsx.md | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/gcc/config/rs6000/vsx.md b/gcc/config/rs6000/vsx.md
index 9c3e07fbfce..65bec8e1d5f 100644
--- a/gcc/config/rs6000/vsx.md
+++ b/gcc/config/rs6000/vsx.md
@@ -4159,23 +4159,25 @@
 }
   [(set_attr "isa" "p9v,*")])
 
-;; Variable V16QI/V8HI/V4SI extract from memory
+;; Variable V16QI/V8HI/V4SI extract from memory.
 (define_insn_and_split "*vsx_extract_<mode>_var_load"
-  [(set (match_operand:<VEC_base> 0 "gpc_reg_operand" "=r")
+  [(set (match_operand:<VEC_base> 0 "gpc_reg_operand" "=r,wa")
 	(unspec:<VEC_base>
-	 [(match_operand:VSX_EXTRACT_I 1 "memory_operand" "Q")
-	  (match_operand:DI 2 "gpc_reg_operand" "r")]
+	 [(match_operand:VSX_EXTRACT_I 1 "memory_operand" "Q,Q")
+	  (match_operand:DI 2 "gpc_reg_operand" "r,r")]
 	 UNSPEC_VSX_EXTRACT))
-   (clobber (match_scratch:DI 3 "=&b"))]
+   (clobber (match_scratch:DI 3 "=&b,&b"))]
   "VECTOR_MEM_VSX_P (<MODE>mode) && TARGET_DIRECT_MOVE_64BIT"
   "#"
   "&& reload_completed"
   [(set (match_dup 0) (match_dup 4))]
 {
-  operands[4] = rs6000_adjust_vec_address (operands[0], operands[1], operands[2],
-					   operands[3], <VEC_base>mode);
+  operands[4] = rs6000_adjust_vec_address (operands[0], operands[1],
+					   operands[2], operands[3],
+					   <VEC_base>mode);
 }
-  [(set_attr "type" "load")])
+  [(set_attr "type" "load,fpload")
+   (set_attr "isa" "*,<VSX_EX_ISA>")])
 
 ;; ISA 3.1 extract
 (define_expand "vextractl<mode>"