[committed] Add testcase for PR rtl-optimization/48381

[Jakub Jelinek]

Hi!

This PR has been fixed without testcase being added,
fixed thusly, regtested on x86_64-linux and i686-linux,
committed to trunk.

2011-05-05  Jakub Jelinek  <ja...@redhat.com>

        PR rtl-optimization/48381
        * gcc.c-torture/compile/pr48381.c: New test.

--- gcc/testsuite/gcc.c-torture/compile/pr48381.c.jj    2011-05-05 
12:16:29.000000000 +0200
+++ gcc/testsuite/gcc.c-torture/compile/pr48381.c       2011-05-05 
12:15:37.000000000 +0200
@@ -0,0 +1,25 @@
+/* PR rtl-optimization/48381 */
+
+struct S { int s; } t;
+
+int baz (void);
+void fn (int, unsigned, int, unsigned, char);
+
+static char
+foo (signed x, unsigned y)
+{
+  return x < 0 || y >= 32 ? 1 : x >> y;
+}
+
+long long
+bar (long long x, long y)
+{
+  return y < 0 ? 1LL : x - y;
+}
+
+void
+test (int x, unsigned y, unsigned z, char w)
+{
+  unsigned v[2];
+  fn (w || baz (), y, t.s, y, foo (bar (z, w) <= v[0], x));
+}

        Jakub