From: Jakub Jelinek <jakub@redhat.com>
Date: Fri, 1 Dec 2023 07:11:34 +0000 (+0100)
Subject: s390: Fix builtin-classify-type-1.c on s390 too [PR112725]
X-Git-Tag: basepoints/gcc-15~4100
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=28944a016bb5eef9a99691b3c55b124882375180;p=thirdparty%2Fgcc.git

s390: Fix builtin-classify-type-1.c on s390 too [PR112725]

s390 suffers from the same issue with __builtin_classify_type vector
arguments, the target hook diagnoses those because it thinks a vector
is passed to an unprototyped function, but in this case it is a type-generic
builtin which can support vector types just fine, by folding into the
appropriate constant.

This fixes
-FAIL: c-c++-common/builtin-classify-type-1.c  -Wc++-compat  (test for excess errors)
-UNRESOLVED: c-c++-common/builtin-classify-type-1.c  -Wc++-compat  compilation failed to produce executable
on s390x-linux.

2023-12-01  Jakub Jelinek  <jakub@redhat.com>

	PR target/112725
	* config/s390/s390.cc (s390_invalid_arg_for_unprototyped_fn): Return
	NULL for __builtin_classify_type calls with vector arguments.
---

diff --git a/gcc/config/s390/s390.cc b/gcc/config/s390/s390.cc
index 29b5dc979207..4b16a75f8518 100644
--- a/gcc/config/s390/s390.cc
+++ b/gcc/config/s390/s390.cc
@@ -12650,7 +12650,8 @@ s390_invalid_arg_for_unprototyped_fn (const_tree typelist, const_tree funcdecl,
 	   && VECTOR_TYPE_P (TREE_TYPE (val))
 	   && (funcdecl == NULL_TREE
 	       || (TREE_CODE (funcdecl) == FUNCTION_DECL
-		   && DECL_BUILT_IN_CLASS (funcdecl) != BUILT_IN_MD)))
+		   && DECL_BUILT_IN_CLASS (funcdecl) != BUILT_IN_MD
+		   && !fndecl_built_in_p (funcdecl, BUILT_IN_CLASSIFY_TYPE))))
 	  ? N_("vector argument passed to unprototyped function")
 	  : NULL);
 }