[PATCH][GCC][AARCH64] PR target/90712 Fix gcc.dg/rtl/aarch64/subs_adds_sp.c regression

gcc/
2019-07-05  Sam Tebbs  <sam.tebbs@arm.com>

	PR target/90712
	* aarch64/aarch64.c (aarch64_post_cfi_startproc): Replace thunk check
	with a frame laid out check.

From-SVN: r273138

gcc/ChangeLog

+2019-07-05  Sam Tebbs  <sam.tebbs@arm.com>
+
+	PR target/90712
+	* aarch64/aarch64.c (aarch64_post_cfi_startproc): Replace thunk check
+	with a frame laid out check.
+
 2019-07-05  Richard Biener  <rguenther@suse.de>
 
 	* tree-ssa-sccvn.c (vn_reference_lookup_3): Valueize RHS

gcc/config/aarch64/aarch64.c

@@ -15745,7 +15745,7 @@ aarch64_asm_output_external (FILE *stream, tree decl, const char* name)
 void
 aarch64_post_cfi_startproc (FILE *f, tree ignored ATTRIBUTE_UNUSED)
 {
-  if (!cfun->is_thunk && aarch64_return_address_signing_enabled ()
+  if (cfun->machine->frame.laid_out && aarch64_return_address_signing_enabled ()
       && aarch64_ra_sign_key == AARCH64_KEY_B)
 	asm_fprintf (f, "\t.cfi_b_key_frame\n");
 }