* gcc.c-torture/execute/20030222-1.c: New test.

From-SVN: r63767

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 22470c3b0967964ac909ab36324d22551ad4cc02..5f34024a2fdea1eb6d41ec3df0b5b1729c1641ff 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2003-03-04  Alexandre Oliva  <aoliva@redhat.com>
+
+       * gcc.c-torture/execute/20030222-1.c: New test.
+
 2003-03-03  James E Wilson  <wilson@tuliptree.org>
 
        * gcc.dg/m68k-slp-ice.c: New test for PR c/7872.

diff --git a/gcc/testsuite/gcc.c-torture/execute/20030222-1.c b/gcc/testsuite/gcc.c-torture/execute/20030222-1.c
new file mode 100644 (file)
index 0000000..93d1e3c
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20030222-1.c
@@ -0,0 +1,27 @@
+/* Verify that we get the low part of the long long as an int.  We
+   used to get it wrong on big-endian machines, if register allocation
+   succeeded at all.  We use volatile to make sure the long long is
+   actually truncated to int, in case a single register is wide enough
+   for a long long.  */
+
+#include <limits.h>
+
+void
+ll_to_int (long long x, volatile int *p)
+{
+  int i;
+  asm ("" : "=r" (i) : "0" (x));
+  *p = i;
+}
+
+int val = INT_MIN + 1;
+
+int main() {
+  volatile int i;
+
+  ll_to_int ((long long)val, &i);
+  if (i != val)
+    abort ();
+  
+  exit (0);
+}