re PR rtl-optimization/7003 ([ppc] address of array loaded int register twice without any need)

2007-09-27  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/7003
        * gcc.target/powerpc/gcse-1.c: New test.

From-SVN: r128856

gcc/testsuite/ChangeLog

+2007-09-27  Andrew Pinski  <andrew_pinski@playstation.sony.com>
+
+	PR middle-end/7003
+	* gcc.target/powerpc/gcse-1.c: New test.
+
 2007-09-27  Tobias Schlter  <tobi@gcc.gnu.org>
 
 	* gfortran.dg/array_initializer_3.f90: Adapt error annotations for

gcc/testsuite/gcc.target/powerpc/gcse-1.c

+/* { dg-do compile { target { *-*-linux* && ilp32 } } } */
+/* { dg-options "-O2" } */
+/* { dg-final { scan-assembler-times "@ha" 1 } } */
+
+
+/* Test for PR 7003, address of array loaded int register
+   twice without any need. */
+
+extern const char flags [256];
+
+unsigned char * f (unsigned char * s) {
+  while (flags[*++s]);
+  while (!flags[*++s]);
+  return s;
+}