The problem here is that the Cilk+ code wasn't prepared to handle
internal calls that the new overflow builtins entail. Fixed by
checking that the CALL_EXPR_FN isn't NULL.
Looking at cilk-plus.exp, I think this file will need some tweaks
now that the C default is gnu11...
Bootstrapped/regtested on powerpc64-linux, ok for trunk?
2014-11-15 Marek Polacek pola...@redhat.com
PR middle-end/63884
c-family/
* array-notation-common.c (is_sec_implicit_index_fn): Return false
for NULL fndecl.
(extract_array_notation_exprs): Return for NULL node.
testsuite/
* c-c++-common/cilk-plus/AN/pr63884.c: New test.
diff --git gcc/c-family/array-notation-common.c
gcc/c-family/array-notation-common.c
index f8bce04..cb5708c 100644
--- gcc/c-family/array-notation-common.c
+++ gcc/c-family/array-notation-common.c
@@ -35,6 +35,9 @@ along with GCC; see the file COPYING3. If not see
bool
is_sec_implicit_index_fn (tree fndecl)
{
+ if (!fndecl)
+return false;
+
if (TREE_CODE (fndecl) == ADDR_EXPR)
fndecl = TREE_OPERAND (fndecl, 0);
@@ -327,6 +330,9 @@ extract_array_notation_exprs (tree node, bool
ignore_builtin_fn,
vectree, va_gc **array_list)
{
size_t ii = 0;
+
+ if (!node)
+return;
if (TREE_CODE (node) == ARRAY_NOTATION_REF)
{
vec_safe_push (*array_list, node);
diff --git gcc/testsuite/c-c++-common/cilk-plus/AN/pr63884.c
gcc/testsuite/c-c++-common/cilk-plus/AN/pr63884.c
index e69de29..c876a8d 100644
--- gcc/testsuite/c-c++-common/cilk-plus/AN/pr63884.c
+++ gcc/testsuite/c-c++-common/cilk-plus/AN/pr63884.c
@@ -0,0 +1,10 @@
+/* PR middle-end/63884 */
+/* { dg-do compile } */
+/* { dg-options -fcilkplus } */
+
+int
+foo (int x, int y)
+{
+ int r;
+ return __builtin_sadd_overflow (x, y, r);
+}
Marek
