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re PR c/40033 (ICE with invalid statement expression)

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PR c/40033
	* c-typeck.c (c_finish_stmt_expr): Do not wrap error_mark_node in
	a C_MAYBE_CONST_EXPR.

testsuite:
	* gcc.dg/noncompile/pr40033-1.c: New test.

From-SVN: r153522
This commit is contained in:
Joseph Myers 2009-10-24 01:44:17 +01:00 committed by Joseph Myers
parent 5e86b38ccb
commit 26d8af3556
4 changed files with 23 additions and 3 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2009-10-23 Joseph Myers <joseph@codesourcery.com>
PR c/40033
* c-typeck.c (c_finish_stmt_expr): Do not wrap error_mark_node in
a C_MAYBE_CONST_EXPR.
2009-10-23 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/41787

8
gcc/c-typeck.c
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@ -8653,11 +8653,13 @@ c_finish_stmt_expr (location_t loc, tree body)
goto continue_searching;
}
if (last == error_mark_node)
return last;
/* In the case that the BIND_EXPR is not necessary, return the
expression out from inside it. */
if (last == error_mark_node
|| (last == BIND_EXPR_BODY (body)
&& BIND_EXPR_VARS (body) == NULL))
if (last == BIND_EXPR_BODY (body)
&& BIND_EXPR_VARS (body) == NULL)
{
/* Even if this looks constant, do not allow it in a constant
expression. */

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2009-10-23 Joseph Myers <joseph@codesourcery.com>
PR c/40033
* gcc.dg/noncompile/pr40033-1.c: New test.
2009-10-23 Dodji Seketeli <dodji@redhat.com>
PR c++/40808

7
gcc/testsuite/gcc.dg/noncompile/pr40033-1.c Normal file
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@ -0,0 +1,7 @@
/* ICE from error_mark_node being wrapped in a C_MAYBE_CONST_EXPR. PR
40033. */
void foo()
{
({ 0,; }); /* { dg-error "expected" } */
}