[Bug target/101529] [11/12 Regression] wrong code with __builtin_convertvector() and __builtin_shufflevector() at -Og

["pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101529

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Patch which I am testing:
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index 2c00583e12c..d5b0cb7ae2f 100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -23084,11 +23084,15 @@ aarch64_evpc_ins (struct expand_vec_perm_d *d)
     }
   gcc_assert (extractindex < nelt);

-  emit_move_insn (d->target, insv);
+  /* Use a new reg instead of target as one of the
+     operands might be target. */
+  rtx original = gen_reg_rtx (GET_MODE (insv));
+
+  emit_move_insn (original, insv);
   insn_code icode = code_for_aarch64_simd_vec_copy_lane (mode);
   expand_operand ops[5];
   create_output_operand (&ops[0], d->target, mode);
-  create_input_operand (&ops[1], d->target, mode);
+  create_input_operand (&ops[1], original, mode);
   create_integer_operand (&ops[2], 1 << idx);
   create_input_operand (&ops[3], extractv, mode);
   create_integer_operand (&ops[4], extractindex);