re PR tree-optimization/43378 (IVOPTs messes up code)

	PR tree-optimization/43378
	* gcc.dg/tree-ssa/pr43378.c: New test.

From-SVN: r220563

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index f34de6e..ca2cf30 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2015-02-10  Bin Cheng  <bin.cheng@arm.com>
+
+       PR tree-optimization/43378
+       * gcc.dg/tree-ssa/pr43378.c: New test.
+
 2015-02-08  Jan Hubicka  <hubicka@ucw.cz>
 
        PR ipa/64978

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr43378.c b/gcc/testsuite/gcc.dg/tree-ssa/pr43378.c
new file mode 100644 (file)
index 0000000..1861b45
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr43378.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-ivopts" } */
+
+void bar (int, int, int);
+void foo (int left, int rite, int element)
+{
+  while (left <= rite)
+    {
+      rite -= element;
+      bar (left, rite, element);
+      left += element;
+    }
+}
+
+/* { dg-final { scan-tree-dump-times "rite_\[0-9\]* = rite_\[0-9\]* - element" 1 "ivopts"} } */
+/* { dg-final { scan-tree-dump-times "left_\[0-9\]* = left_\[0-9\]* \\+ element|left_\[0-9\]* = element_\[0-9\]*\\(D\\) \\+ left" 1 "ivopts"} } */
+/* { dg-final { cleanup-tree-dump "ivopts" } } */