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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/tree-ssa/slsr-16.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/tree-ssa/slsr-16.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/slsr-16.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/slsr-16.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/slsr-16.c
new file mode 100644
index 000000000..5fe0175cb
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/slsr-16.c
@@ -0,0 +1,28 @@
+/* Straight-line strength reduction control flow variation. */
+
+/* { dg-do compile } */
+/* { dg-options "-O3 -fdump-tree-optimized" } */
+
+int
+f (int n, int c, int s)
+{
+ int a2, a3, a4, x1, x2, x3, x4;
+
+ x1 = c + s;
+ a2 = 3 * s;
+ x2 = c + a2;
+ x3 = x4 = c;
+
+ if (n > 64)
+ {
+ a3 = 5 * s;
+ x3 = c + a3;
+ a4 = 7 * s;
+ x4 = c + a4;
+ }
+
+ return x1 + x2 + x3 + x4;
+}
+
+/* { dg-final { scan-tree-dump-times " \\* " 1 "optimized" } } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */