[Bug target/112374] [14 Regression] Failed bootstrap with `--with-arch=skylake-avx512 --with-cpu=skylake-avx512`, causes a comparison failure since r14-5076-g01c18f58d37865d5f3bbe93e666183b54ec

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112374

--- Comment #29 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
--- gcc/tree-vect-loop.cc.jj    2023-11-14 10:35:52.000000000 +0100
+++ gcc/tree-vect-loop.cc       2023-11-15 22:42:32.782007408 +0100
@@ -4105,9 +4105,9 @@ pop:
        /* In case of a COND_OP (mask, op1, op2, op1) reduction we might have
           op1 twice (once as definition, once as else) in the same operation.
           Allow this.  */
-         if (cond_fn_p)
+         if (cond_fn_p && op_use_stmt == use_stmt)
            {
-             gcall *call = dyn_cast<gcall *> (use_stmt);
+             gcall *call = as_a<gcall *> (use_stmt);
              unsigned else_pos
                = internal_fn_else_index (internal_fn (op.code));

doesn't cure the -fcompare-debug failure though.