From: Richard Guenther <rguenther@suse.de>
Date: Fri, 13 Apr 2012 09:24:28 +0000 (+0000)
Subject: re PR c/52549 (ice in pointer_diff)
X-Git-Tag: misc/gccgo-go1_1_2~3521
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1e867b228fc67a773e682bfd75ebd6ea3ce0a95e;p=thirdparty%2Fgcc.git

re PR c/52549 (ice in pointer_diff)

2012-04-13  Richard Guenther  <rguenther@suse.de>

	PR c/52549
	* c-typeck.c (pointer_diff): Remove bogus assert.

	* gcc.dg/pr52549.c: New testcase.

From-SVN: r186408
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d161985b518b..fdff5a767073 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2012-04-13  Richard Guenther  <rguenther@suse.de>
+
+	PR c/52549
+	* c-typeck.c (pointer_diff): Remove bogus assert.
+
 2012-04-13  Richard Guenther  <rguenther@suse.de>
 
 	PR c/52862
diff --git a/gcc/c-typeck.c b/gcc/c-typeck.c
index 9891348029c1..e7060e2c3d28 100644
--- a/gcc/c-typeck.c
+++ b/gcc/c-typeck.c
@@ -3446,8 +3446,6 @@ pointer_diff (location_t loc, tree op0, tree op1)
   else
     con1 = op1;
 
-  gcc_assert (TREE_CODE (con0) != PLUS_EXPR
-	      && TREE_CODE (con1) != PLUS_EXPR);
   if (TREE_CODE (con0) == POINTER_PLUS_EXPR)
     {
       lit0 = TREE_OPERAND (con0, 1);
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 23608c58065b..9abfbd3bded3 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2012-04-13  Richard Guenther  <rguenther@suse.de>
+
+	PR c/52549
+	* gcc.dg/pr52549.c: New testcase.
+
 2012-04-13  Richard Guenther  <rguenther@suse.de>
 
 	PR c/52862
diff --git a/gcc/testsuite/gcc.dg/pr52549.c b/gcc/testsuite/gcc.dg/pr52549.c
new file mode 100644
index 000000000000..89ec2aaf6cc3
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr52549.c
@@ -0,0 +1,6 @@
+/* { dg-do compile } */
+
+_mark (long obj, int i, char *a)
+{
+  (char *)&(((long *)(obj)) [i]) - a;
+}