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authorAndi Kleen <ak@linux.intel.com>2014-11-11 05:11:09 +0000
committerAndi Kleen <ak@gcc.gnu.org>2014-11-11 05:11:09 +0000
commit14f68c3965a2ceb64228341bb5769155b1eb2e13 (patch)
treea73789fd2207b78d7d1e3be7c1f09c1b415ce99d
parente5e442524724592b9f6e969354ba33c4f20f6ab2 (diff)
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Add illegal cilk checks to C++ front.
Add calls for several illegal Cilk cases to the C++ frontend. C++ usually doesn't ICE unlike C on illegal cilk, but it's better to match C in what is allowed and what is not. if (_Cilk_spawn ...) is still not errored, but at least it doesn't ICE. gcc/cp/: 2014-11-10 Andi Kleen <ak@linux.intel.com> * semantics.c (finish_goto_stmt): Call check_no_cilk. (finish_while_stmt_cond): Dito. (finish_do_stmt): Dito. (finish_for_cond): Dito. (finish_switch_cond): Dito. From-SVN: r217337
-rw-r--r--gcc/cp/ChangeLog8
-rw-r--r--gcc/cp/semantics.c22
2 files changed, 30 insertions, 0 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 22b013e..9420908 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,11 @@
+2014-11-10 Andi Kleen <ak@linux.intel.com>
+
+ * semantics.c (finish_goto_stmt): Call check_no_cilk.
+ (finish_while_stmt_cond): Dito.
+ (finish_do_stmt): Dito.
+ (finish_for_cond): Dito.
+ (finish_switch_cond): Dito.
+
2014-11-10 Paolo Carlini <paolo.carlini@oracle.com>
* typeck.c (cp_build_binary_op): Use OPT_Wshift_count_negative and
diff --git a/gcc/cp/semantics.c b/gcc/cp/semantics.c
index 0d757ca..ebd9a43 100644
--- a/gcc/cp/semantics.c
+++ b/gcc/cp/semantics.c
@@ -625,6 +625,10 @@ finish_goto_stmt (tree destination)
TREE_USED (destination) = 1;
else
{
+ if (check_no_cilk (destination,
+ "Cilk array notation cannot be used as a computed goto expression",
+ "%<_Cilk_spawn%> statement cannot be used as a computed goto expression"))
+ destination = error_mark_node;
destination = mark_rvalue_use (destination);
if (!processing_template_decl)
{
@@ -796,6 +800,10 @@ begin_while_stmt (void)
void
finish_while_stmt_cond (tree cond, tree while_stmt, bool ivdep)
{
+ if (check_no_cilk (cond,
+ "Cilk array notation cannot be used as a condition for while statement",
+ "%<_Cilk_spawn%> statement cannot be used as a condition for while statement"))
+ cond = error_mark_node;
cond = maybe_convert_cond (cond);
finish_cond (&WHILE_COND (while_stmt), cond);
begin_maybe_infinite_loop (cond);
@@ -851,6 +859,10 @@ finish_do_body (tree do_stmt)
void
finish_do_stmt (tree cond, tree do_stmt, bool ivdep)
{
+ if (check_no_cilk (cond,
+ "Cilk array notation cannot be used as a condition for a do-while statement",
+ "%<_Cilk_spawn%> statement cannot be used as a condition for a do-while statement"))
+ cond = error_mark_node;
cond = maybe_convert_cond (cond);
end_maybe_infinite_loop (cond);
if (ivdep && cond != error_mark_node)
@@ -960,6 +972,10 @@ finish_for_init_stmt (tree for_stmt)
void
finish_for_cond (tree cond, tree for_stmt, bool ivdep)
{
+ if (check_no_cilk (cond,
+ "Cilk array notation cannot be used in a condition for a for-loop",
+ "%<_Cilk_spawn%> statement cannot be used in a condition for a for-loop"))
+ cond = error_mark_node;
cond = maybe_convert_cond (cond);
finish_cond (&FOR_COND (for_stmt), cond);
begin_maybe_infinite_loop (cond);
@@ -1122,6 +1138,12 @@ void
finish_switch_cond (tree cond, tree switch_stmt)
{
tree orig_type = NULL;
+
+ if (check_no_cilk (cond,
+ "Cilk array notation cannot be used as a condition for switch statement",
+ "%<_Cilk_spawn%> statement cannot be used as a condition for switch statement"))
+ cond = error_mark_node;
+
if (!processing_template_decl)
{
/* Convert the condition to an integer or enumeration type. */