From: Richard Biener <rguenther@suse.de>
Date: Wed, 7 May 2014 08:06:45 +0000 (+0000)
Subject: re PR tree-optimization/57864 (ICE in bitmap_set_replace_value, at tree-ssa-pre.c... 
X-Git-Tag: releases/gcc-4.8.3~83
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=616b36371c285578ca0419cbaba8181be6177e2a;p=thirdparty%2Fgcc.git

re PR tree-optimization/57864 (ICE in bitmap_set_replace_value, at tree-ssa-pre.c:862)

2014-05-07  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/57864
	* gcc.dg/torture/pr57864.c: New testcase.

From-SVN: r210145
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index a74b5e5e09d0..9fa27bafe7ba 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2014-05-07  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/57864
+	* gcc.dg/torture/pr57864.c: New testcase.
+
 2014-05-06  Richard Biener  <rguenther@suse.de>
 
 	Backport from mainline
diff --git a/gcc/testsuite/gcc.dg/torture/pr57864.c b/gcc/testsuite/gcc.dg/torture/pr57864.c
new file mode 100644
index 000000000000..93962c20e3fd
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/pr57864.c
@@ -0,0 +1,37 @@
+/* { dg-do compile } */
+
+union U {
+    double val;
+    union U *ptr;
+};
+
+union U *d;
+double a;
+int b;
+int c;
+
+static void fn1(union U *p1, int p2, _Bool p3)
+{
+    union U *e;
+
+    if (p2 == 0)
+	a = ((union U*)((unsigned long)p1 & ~1))->val;
+
+    if (b) {
+	e = p1;
+    } else if (c) {
+	e = ((union U*)((unsigned long)p1 & ~1))->ptr;
+	d = e;
+    } else {
+	e = 0;
+	d = ((union U*)0)->ptr;
+    }
+
+    fn1 (e, 0, 0);
+    fn1 (0, 0, p3);
+}
+
+void fn2 (void)
+{
+  fn1 (0, 0, 0);
+}