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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/ldist-pr45948.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/ldist-pr45948.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ldist-pr45948.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ldist-pr45948.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ldist-pr45948.c
new file mode 100644
index 000000000..f25a91064
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ldist-pr45948.c
@@ -0,0 +1,23 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -ftree-loop-distribution -ftree-loop-distribute-patterns -fdump-tree-ldist-details" } */
+
+extern void bar(int);
+
+void
+foo (int i, int n)
+{
+ int a[30];
+ int b[30];
+ for (; i < n; i++)
+ a[i] = b[i] = 0;
+
+ while (1)
+ if (b[0])
+ bar (a[i - 1]);
+}
+
+/* We should apply loop distribution and generate 2 memset (0). */
+
+/* { dg-final { scan-tree-dump "distributed: split to 0 loops and 2 library calls" "ldist" } } */
+/* { dg-final { scan-tree-dump-times "generated memset zero" 2 "ldist" } } */
+/* { dg-final { cleanup-tree-dump "ldist" } } */