From 6a07739dee3b1ac6c5107de88eb724b08187abfc Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hongjiu.lu@intel.com>
Date: Tue, 27 Apr 2010 00:25:18 +0000
Subject: [PATCH] Add a run-time testcase for PR tree-optimization/43904.
2010-04-26 H.J. Lu <hongjiu.lu@intel.com>
PR tree-optimization/43904
* gcc.dg/tree-ssa/tailcall-6.c: New.
From-SVN: r158757
---
gcc/testsuite/ChangeLog | 5 ++++
gcc/testsuite/gcc.dg/tree-ssa/tailcall-6.c | 33 ++++++++++++++++++++++
2 files changed, 38 insertions(+)
create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/tailcall-6.c
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 4351007c3a4b..f5ba72f73495 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2010-04-26 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR tree-optimization/43904
+ * gcc.dg/tree-ssa/tailcall-6.c: New.
+
2010-04-26 Iain Sandoe <iain.sandoe@sandoe-acoustics.co.uk>
PR testsuite/35165
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/tailcall-6.c b/gcc/testsuite/gcc.dg/tree-ssa/tailcall-6.c
new file mode 100644
index 000000000000..4997f9b8355b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/tailcall-6.c
@@ -0,0 +1,33 @@
+/* PR tree-optimization/43904. */
+/* { dg-do run } */
+/* { dg-options "-O1 -foptimize-sibling-calls" } */
+
+typedef __SIZE_TYPE__ size_t;
+extern void abort(void);
+
+void *memcpy(void *dest, const void *src, size_t n);
+
+void
+buggy_init(void *ptr, size_t size)
+{
+ const char *str = "Hello world!";
+ memcpy(ptr, &str, size);
+}
+
+void
+expose_bug(void *ptr, size_t size)
+{
+ const char *str;
+ memcpy(&str, ptr, size);
+ if (*str != 'H')
+ abort ();
+}
+
+int
+main()
+{
+ const char *ptr;
+ buggy_init(&ptr, sizeof(ptr));
+ expose_bug(&ptr, sizeof(ptr));
+ return 0;
+}
--
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