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authorJan Hubicka <hubicka@ucw.cz>2016-05-30 12:40:33 +0200
committerJan Hubicka <hubicka@gcc.gnu.org>2016-05-30 10:40:33 +0000
commit98bdbb39a6676776c528f3b51ce740669c06d708 (patch)
tree70d2283e17b094627b83cbfbd240e80625f370dd /gcc/testsuite/gcc.dg/tree-ssa/cunroll-13.c
parentd5cf3d8da6ef568929fc8bdfc1809593ff1988a8 (diff)
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predict.h (force_edge_cold): Declare.
* predict.h (force_edge_cold): Declare. * predict.c (force_edge_cold): New function. * tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Fix profile updating. (canonicalize_loop_induction_variables): Fix formating. * gcc.dg/tree-ssa/cunroll-12.c: New testcase. * gcc.dg/tree-ssa/cunroll-13.c: New testcase. * gcc.dg/tree-ssa/cunroll-14.c: New testcase. From-SVN: r236874
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/cunroll-13.c')
-rw-r--r--gcc/testsuite/gcc.dg/tree-ssa/cunroll-13.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/cunroll-13.c b/gcc/testsuite/gcc.dg/tree-ssa/cunroll-13.c
new file mode 100644
index 0000000..6e4417a
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/cunroll-13.c
@@ -0,0 +1,16 @@
+/* { dg-do compile } */
+/* { dg-options "-O3 -fdisable-tree-cunrolli -fdisable-tree-vrp1 -fdump-tree-cunroll-blocks-details" } */
+struct a {int a[8];int b;};
+void
+t(struct a *a)
+{
+ for (int i=0;i<123456 && a->a[i];i++)
+ a->a[i]++;
+}
+/* This pass relies on the fact that we do not eliminate the redundant test for i early.
+ It is necessary to disable all passes that do so. At the moment it is vrp1 and cunrolli. */
+/* { dg-final { scan-tree-dump-times "Loop 1 iterates 123454 times" 1 "cunroll" } } */
+/* { dg-final { scan-tree-dump-times "Last iteration exit edge was proved true" 1 "cunroll" } } */
+/* { dg-final { scan-tree-dump-times "Exit condition of peeled iterations was eliminated" 1 "cunroll" } } */
+/* { dg-final { scan-tree-dump-times "loop with 7 iterations completely unrolled" 1 "cunroll" } } */
+/* { dg-final { scan-tree-dump-not "Invalid sum" "cunroll" } } */