re PR rtl-optimization/8750 (Cygwin prolog generation erroneously emitting…

re PR rtl-optimization/8750 (Cygwin prolog generation erroneously emitting __alloca as regular function call)

	PR optimization/8750
	* gcc.c-torture/execute/20031012-1.c: New Test Case.

From-SVN: r72402

gcc/testsuite/ChangeLog

+2003-10-12  Kelley Cook  <kcook@gcc.gnu.org>
+
+	PR optimization/8750
+	* gcc.c-torture/execute/20031012-1.c: New test case.
+
 2003-10-11  Roger Sayle  <roger@eyesopen.com>
 
 	* gcc.c-torture/execute/string-opt-8.c: Don't test optimizations
@@ -16,7 +21,7 @@
 
 	* gcc.c-torture/compile/20031011-1.c: New test.
 
-Sat Oct 11 12:26:16 CEST 2003  Jan Hubicka  <jh@suse.cz>
+2003-10-11  Jan Hubicka  <jh@suse.cz>
 
 	* g++.dg/other/first-global.C: New test.
 
@@ -12876,12 +12881,12 @@ Mon 18-Sep-2000 19:23:11 BST  Neil Booth  <NeilB@earthling.net>
 	* gcc.c-torture/execute/20000917-1.c: New test.
 	* gcc.c-torture/execute/20000917-1.x: XFAIL.
 
-Sat 16-Sep-2000 08:14:58 BST  Neil Booth  <NeilB@earthling.net>
+2000-09-16  Neil Booth  <NeilB@earthling.net>
 
 	* gcc.dg/cpp/macro2.c: Testcase for multi-context arguments
 	in nested macro bug.
 
-Fri 15-Sep-2000 06:50:11 BST  Neil Booth  <NeilB@earthling.net>
+2000-09-15  Neil Booth  <NeilB@earthling.net>
 
 	* gcc.dg/cpp/paste10.c: Testcase for PASTE_LEFT buglet.
 

gcc/testsuite/gcc.c-torture/execute/20031012-1.c

+/* PR optimization/8750
+   Used to fail under Cygwin with 
+   -O2 -fomit-frame-pointer        
+   Testcase by David B. Trout     */
+
+#if defined(STACK_SIZE) && STACK_SIZE < 16000
+#define ARRAY_SIZE (STACK_SIZE / 2)
+#define STRLEN	   (ARRAY_SIZE - 9)
+#else
+#define ARRAY_SIZE 15000
+#define STRLEN     13371
+#endif
+
+extern void *memset (void *, int, __SIZE_TYPE__);
+extern void abort (void);
+
+static void foo ()
+{
+    char a[ARRAY_SIZE];
+
+    a[0]=0;
+    memset( &a[0], 0xCD, STRLEN );
+    a[STRLEN]=0;
+    if (strlen(a) != STRLEN)
+      abort ();
+}
+
+int main ( int argc, char* argv[] )
+{
+    foo();
+    return 0;
+}