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

	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 745ce8e6c3236cf3a1b61b5fa4e25de0b31c219d..3e5a68b4533ea2f624558dbd62dd88b24c1a77e6 100644 (file)
--- 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 3d84316cd12d46a1c63d99fc686f96ca801464e9..8b29d82e3d94d5c854ebe7b7253d86e0269afdae 100644 (file)
--- 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 3879418c630c32a1a8cc2d2e92cae14d17eda3f9..21b11e9178e5522084e77f085343ebb79a57d9d7 100644 (file)
--- 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 (file)
index 0000000..fe2d430
--- /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" } */
+}