From: Joseph Myers <jsm@polyomino.org.uk>
Date: Sat, 18 Sep 2004 18:28:14 +0000 (+0100)
Subject: re PR c/17424 (ICE with sizeof an undeclared variable)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ad97f4bed6ac21187cce4f9267279d13ae56ecab;p=gcc.git

re PR c/17424 (ICE with sizeof an undeclared variable)

	PR c/17424
	* c-typeck.c (c_expr_sizeof_expr): Check for error_mark_node.

testsuite:
	* gcc.dg/pr17424-1.c: New test.

From-SVN: r87705
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8ac66921107..e733d00f434 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-09-18  Joseph S. Myers  <jsm@polyomino.org.uk>
+
+	PR c/17424
+	* c-typeck.c (c_expr_sizeof_expr): Check for error_mark_node.
+
 2004-09-18  Diego Novillo  <dnovillo@redhat.com>
 
 	* tree-ssa-alias.c (setup_pointers_and_addressables): Don't
diff --git a/gcc/c-typeck.c b/gcc/c-typeck.c
index c00b9ec4a61..a7f776390dd 100644
--- a/gcc/c-typeck.c
+++ b/gcc/c-typeck.c
@@ -1855,9 +1855,18 @@ struct c_expr
 c_expr_sizeof_expr (struct c_expr expr)
 {
   struct c_expr ret;
-  ret.value = c_sizeof (TREE_TYPE (expr.value));
-  ret.original_code = ERROR_MARK;
-  pop_maybe_used (C_TYPE_VARIABLE_SIZE (TREE_TYPE (expr.value)));
+  if (expr.value == error_mark_node)
+    {
+      ret.value = error_mark_node;
+      ret.original_code = ERROR_MARK;
+      pop_maybe_used (false);
+    }
+  else
+    {
+      ret.value = c_sizeof (TREE_TYPE (expr.value));
+      ret.original_code = ERROR_MARK;
+      pop_maybe_used (C_TYPE_VARIABLE_SIZE (TREE_TYPE (expr.value)));
+    }
   return ret;
 }
 
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 4bb46044e19..df5cc5314b3 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2004-09-18  Joseph S. Myers  <jsm@polyomino.org.uk>
+
+	PR c/17424
+	* gcc.dg/pr17424-1.c: New test.
+
 2004-09-18  Diego Novillo  <dnovillo@redhat.com>
 
 	* g++.dg/tree-ssa/pr17153.C: New test.
diff --git a/gcc/testsuite/gcc.dg/pr17424-1.c b/gcc/testsuite/gcc.dg/pr17424-1.c
new file mode 100644
index 00000000000..893b4af13d2
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr17424-1.c
@@ -0,0 +1,5 @@
+/* Test for bug 17424: ICE for sizeof an undeclared variable.  */
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+;int foezis = sizeof tni; /* { dg-error "'tni' undeclared" } */