Tested on x86_64-unknown-linux-gnu, applied.
Richard.
2012-06-29 Richard Guenther <rguent...@suse.de>
PR tree-optimization/47061
* gcc.dg/tree-ssa/vrp71.c: New testcase.
Index: gcc/testsuite/gcc.dg/tree-ssa/vrp71.c
===================================================================
--- gcc/testsuite/gcc.dg/tree-ssa/vrp71.c (revision 0)
+++ gcc/testsuite/gcc.dg/tree-ssa/vrp71.c (working copy)
@@ -0,0 +1,22 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-vrp1" } */
+
+int foo(int *p)
+{
+ int x = -10;
+ if (p[0]) x++;
+ if (p[1]) x++;
+ if (p[2]) x++;
+ if (p[3]) x++;
+ x <<= 2;
+ return (x > 0);
+}
+
+int bar(char c)
+{
+ int i = c << 1;
+ return i > 1000;
+}
+
+/* { dg-final { scan-tree-dump-times "return 0;" 2 "vrp1" } } */
+/* { dg-final { cleanup-tree-dump "vrp1" } } */
