[gcc r12-2786] Use CFN_BUILT_IN_CLRSB instead of BUILT_IN_CLRSB in switch.

[gcc r12-2786] Use CFN_BUILT_IN_CLRSB instead of BUILT_IN_CLRSB in switch.

[Roger Sayle]

https://gcc.gnu.org/g:9d8eacc2ae8b9ad6490fc14cbb5127a103847b21

commit r12-2786-g9d8eacc2ae8b9ad6490fc14cbb5127a103847b21
Author: Roger Sayle <roger@nextmovesoftware.com>
Date:   Fri Aug 6 12:30:53 2021 +0100

    Use CFN_BUILT_IN_CLRSB instead of BUILT_IN_CLRSB in switch.
    
    This patch replaces the use of BUILT_IN_CLRSB with CFN_BUILT_IN_CLRSB
    in my recent patch to tree-ssa-phiopt.c.  Both of these have identical
    values, so there's no change in behavior, but consistent use of the same
    enumeration avoids warnings when using clang (or static analysis tools).
    
    2021-08-06  Roger Sayle  <roger@nextmovesoftware.com>
    
    gcc/ChangeLog
            * tree-ssa-phiopt.c (cond_removal_in_builtin_zero_pattern): Use
            CFN_BUILT_IN_CLRSB* instead of BUILT_IN_CLRSB* for consistency.

Diff:
---
 gcc/tree-ssa-phiopt.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/tree-ssa-phiopt.c b/gcc/tree-ssa-phiopt.c
index 66af902e37e..0e339c46afa 100644
--- a/gcc/tree-ssa-phiopt.c
+++ b/gcc/tree-ssa-phiopt.c
@@ -2583,13 +2583,13 @@ cond_removal_in_builtin_zero_pattern (basic_block cond_bb,
 	    }
 	}
       return false;
-    case BUILT_IN_CLRSB:
+    case CFN_BUILT_IN_CLRSB:
       val = TYPE_PRECISION (integer_type_node) - 1;
       break;
-    case BUILT_IN_CLRSBL:
+    case CFN_BUILT_IN_CLRSBL:
       val = TYPE_PRECISION (long_integer_type_node) - 1;
       break;
-    case BUILT_IN_CLRSBLL:
+    case CFN_BUILT_IN_CLRSBLL:
       val = TYPE_PRECISION (long_long_integer_type_node) - 1;
       break;
     default: