[gcc r12-2905] Fix xxeval predicates (PR 99921).

[gcc r12-2905] Fix xxeval predicates (PR 99921).

[Michael Meissner]

https://gcc.gnu.org/g:58eec9908c01e2f5a6eb9cd76bbf037bbe2cf5e6

commit r12-2905-g58eec9908c01e2f5a6eb9cd76bbf037bbe2cf5e6
Author: Michael Meissner <meissner@linux.ibm.com>
Date:   Fri Aug 13 19:43:27 2021 -0400

    Fix xxeval predicates (PR 99921).
    
    I noticed that the xxeval built-in function used the altivec_register_operand
    predicate.  Since it takes vsx registers, this might force the register
    allocate to issue a move when it could use a traditional floating point
    register.  This patch fixes that.
    
    2021-08-13  Michael Meissner  <meissner@linux.ibm.com>
    
    gcc/
            PR target/99921
            * config/rs6000/altivec.md (xxeval): Use register_predicate
            instead of altivec_register_predicate.

Diff:
---
 gcc/config/rs6000/altivec.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/config/rs6000/altivec.md b/gcc/config/rs6000/altivec.md
index d70c17e6bc2..fd86c300981 100644
--- a/gcc/config/rs6000/altivec.md
+++ b/gcc/config/rs6000/altivec.md
@@ -3875,9 +3875,9 @@
 
 (define_insn "xxeval"
   [(set (match_operand:V2DI 0 "register_operand" "=wa")
-	(unspec:V2DI [(match_operand:V2DI 1 "altivec_register_operand" "wa")
-		      (match_operand:V2DI 2 "altivec_register_operand" "wa")
-		      (match_operand:V2DI 3 "altivec_register_operand" "wa")
+	(unspec:V2DI [(match_operand:V2DI 1 "register_operand" "wa")
+		      (match_operand:V2DI 2 "register_operand" "wa")
+		      (match_operand:V2DI 3 "register_operand" "wa")
 		      (match_operand:QI 4 "u8bit_cint_operand" "n")]
 		     UNSPEC_XXEVAL))]
    "TARGET_POWER10"