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Patch for bug 20245
- From: "Joseph S. Myers" <joseph at codesourcery dot com>
- To: gcc-patches at gcc dot gnu dot org
- Date: Mon, 28 Feb 2005 19:22:47 +0000 (UTC)
- Subject: Patch for bug 20245
This patch fixes bug 20245, an ICE on parse error in the new C parser.
Bootstrapped with no regressions on x86_64-unknown-linux-gnu. Applied to
mainline.
--
Joseph S. Myers http://www.srcf.ucam.org/~jsm28/gcc/
jsm@polyomino.org.uk (personal mail)
joseph@codesourcery.com (CodeSourcery mail)
jsm28@gcc.gnu.org (Bugzilla assignments and CCs)
2005-02-28 Joseph S. Myers <joseph@codesourcery.com>
PR c/20245
* c-parser.c (c_parser_compound_statement): Return error_mark_node
instead of NULL_TREE on error.
testsuite:
2005-02-28 Joseph S. Myers <joseph@codesourcery.com>
PR c/20245
* gcc.dg/pr20245-1.c: New test.
diff -rupN GCC.orig/gcc/c-parser.c GCC/gcc/c-parser.c
--- GCC.orig/gcc/c-parser.c 2005-02-25 23:15:44.000000000 +0000
+++ GCC/gcc/c-parser.c 2005-02-28 18:08:20.000000000 +0000
@@ -3170,7 +3170,7 @@ c_parser_compound_statement (c_parser *p
{
tree stmt;
if (!c_parser_require (parser, CPP_OPEN_BRACE, "expected %<{%>"))
- return NULL_TREE;
+ return error_mark_node;
stmt = c_begin_compound_stmt (true);
c_parser_compound_statement_nostart (parser);
return c_end_compound_stmt (stmt, true);
diff -rupN GCC.orig/gcc/testsuite/gcc.dg/pr20245-1.c GCC/gcc/testsuite/gcc.dg/pr20245-1.c
--- GCC.orig/gcc/testsuite/gcc.dg/pr20245-1.c 1970-01-01 00:00:00.000000000 +0000
+++ GCC/gcc/testsuite/gcc.dg/pr20245-1.c 2005-02-28 18:09:13.000000000 +0000
@@ -0,0 +1,5 @@
+/* Bug 20245: the parse error should not result in an ICE. */
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+void foo() x; /* { dg-error "expected" } */