From: Jakub Jelinek <jakub@redhat.com>
Date: Mon, 15 Feb 2016 21:30:50 +0000 (+0100)
Subject: re PR c++/69797 (ICE on invalid code on x86_64-linux-gnu in operator[], at vec.h... 
X-Git-Tag: basepoints/gcc-7~936
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ba6b3795d4d7fe18b27a467f7d96051b5b55ace2;p=thirdparty%2Fgcc.git

re PR c++/69797 (ICE on invalid code on x86_64-linux-gnu in operator[], at vec.h:714)

	PR c++/69797
	* c-common.c (sync_resolve_size): Diagnose too few arguments
	even when params is non-NULL empty vector.

	* c-c++-common/pr69797.c: New test.

From-SVN: r233434
---

diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog
index 745ce8e6c323..3e5a68b4533e 100644
--- a/gcc/c-family/ChangeLog
+++ b/gcc/c-family/ChangeLog
@@ -1,3 +1,9 @@
+2016-02-15  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/69797
+	* c-common.c (sync_resolve_size): Diagnose too few arguments
+	even when params is non-NULL empty vector.
+
 2016-02-08  Bernd Schmidt  <bschmidt@redhat.com>
 
 	PR target/60410
diff --git a/gcc/c-family/c-common.c b/gcc/c-family/c-common.c
index 3d84316cd12d..8b29d82e3d94 100644
--- a/gcc/c-family/c-common.c
+++ b/gcc/c-family/c-common.c
@@ -10675,7 +10675,7 @@ sync_resolve_size (tree function, vec<tree, va_gc> *params, bool fetch)
   tree type;
   int size;
 
-  if (!params)
+  if (vec_safe_is_empty (params))
     {
       error ("too few arguments to function %qE", function);
       return 0;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 3879418c630c..21b11e9178e5 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2016-02-15  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/69797
+	* c-c++-common/pr69797.c: New test.
+
 2016-02-15  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 
 	* lib/target-supports.exp (check_effective_target_section_anchors): Add
diff --git a/gcc/testsuite/c-c++-common/pr69797.c b/gcc/testsuite/c-c++-common/pr69797.c
new file mode 100644
index 000000000000..fe2d4304c34d
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/pr69797.c
@@ -0,0 +1,8 @@
+/* PR c++/69797 */
+/* { dg-do compile } */
+
+void
+foo () 
+{
+  __atomic_fetch_add ();	/* { dg-error "too few arguments to function" } */
+}