[PATCH, PR58942, Cilk+] Fix ICE when pointer is used in array notation

[Zamyatin, Igor]

Hi!

Following patch handles the case of pointers in Cilk+ builtins.

Regtested in x86_64.
Ok for trunk and 4.9?

Thanks,
Igor

gcc/c/ChangeLog:

2014-05-23  Igor Zamyatin  <igor.zamya...@intel.com>

PR c/58942
* c-array-notation.c (fix_builtin_array_notation_fn): Handle the case
with a pointer.

gcc/cp/ChangeLog:

2014-05-23  Igor Zamyatin  <igor.zamya...@intel.com>

PR c/58942
* cp-array-notation.c (expand_sec_reduce_builtin): Handle the case
with a pointer.

gcc/testsuite/ChangeLog

2014-05-23  Igor Zamyatin  <igor.zamya...@intel.com>

PR c/58942
* c-c++-common/cilk-plus/AN/pr58942.c: Check for correct handling
of the case with a pointer.



diff --git a/gcc/c/c-array-notation.c b/gcc/c/c-array-notation.c
index 0ac6ba8..42fc9e1 100644
--- a/gcc/c/c-array-notation.c
+++ b/gcc/c/c-array-notation.c
@@ -308,7 +308,9 @@ fix_builtin_array_notation_fn (tree an_builtin_fn, tree 
*new_var)
       || an_type == BUILT_IN_CILKPLUS_SEC_REDUCE_MIN_IND)
     array_ind_value = build_decl (location, VAR_DECL, NULL_TREE, 
                                  TREE_TYPE (func_parm));
-  array_op0 = (*array_operand)[0];                           
+  array_op0 = (*array_operand)[0];
+  if (TREE_CODE (array_op0) == INDIRECT_REF)
+    array_op0 = TREE_OPERAND (array_op0, 0);
   switch (an_type)
     {
     case BUILT_IN_CILKPLUS_SEC_REDUCE_ADD:
diff --git a/gcc/cp/cp-array-notation.c b/gcc/cp/cp-array-notation.c
index 65b8bcb..71312db 100644
--- a/gcc/cp/cp-array-notation.c
+++ b/gcc/cp/cp-array-notation.c
@@ -340,6 +340,8 @@ expand_sec_reduce_builtin (tree an_builtin_fn, tree 
*new_var)
     array_ind_value = get_temp_regvar (TREE_TYPE (func_parm), func_parm);
 
   array_op0 = (*array_operand)[0];
+  if (TREE_CODE (array_op0) == INDIRECT_REF)
+    array_op0 = TREE_OPERAND (array_op0, 0);
   switch (an_type)
     {
     case BUILT_IN_CILKPLUS_SEC_REDUCE_ADD:
diff --git a/gcc/testsuite/c-c++-common/cilk-plus/AN/pr58942.c 
b/gcc/testsuite/c-c++-common/cilk-plus/AN/pr58942.c
new file mode 100644
index 0000000..87903af
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/cilk-plus/AN/pr58942.c
@@ -0,0 +1,8 @@
+/* PR c/58942 */
+/* { dg-do compile } */
+/* { dg-options "-fcilkplus" } */
+
+int foo (int*p, int i)
+{
+  return __sec_reduce_max_ind(p[1:i]);
+}

cilk_58942.patch
Description: cilk_58942.patch