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authorBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
committerBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
commit1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch)
treec607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.dg/no-strict-overflow-5.c
parent283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff)
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Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/no-strict-overflow-5.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/no-strict-overflow-5.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/no-strict-overflow-5.c b/gcc-4.9/gcc/testsuite/gcc.dg/no-strict-overflow-5.c
new file mode 100644
index 000000000..a63bf342b
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/no-strict-overflow-5.c
@@ -0,0 +1,20 @@
+/* { dg-do compile } */
+/* { dg-options "-fno-strict-overflow -O2 -fdump-tree-optimized" } */
+
+/* Dual of strict-overflow-5.c. */
+
+/* We can only unroll when using strict overflow semantics. */
+
+int foo (int i)
+{
+ int index;
+ int r=0;
+
+ for (index = i; index <= i+4; index+=2)
+ r++;
+
+ return r;
+}
+
+/* { dg-final { scan-tree-dump-times "r = 3" 0 "optimized" } } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */