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| author | Richard Biener <rguenther@suse.de> | 2012-12-21 10:32:43 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2012-12-21 10:32:43 +0000 |
| commit | d846aac9be9a94adc1be78166db42df57da3490a (patch) | |
| tree | af3401b2c1f3a7bda0d5e39900754b6b79979908 | |
| parent | 3cc6dd4dce2f275e8d539d0a32493ee563352ac9 (diff) | |
| download | gcc-d846aac9be9a94adc1be78166db42df57da3490a.zip gcc-d846aac9be9a94adc1be78166db42df57da3490a.tar.gz gcc-d846aac9be9a94adc1be78166db42df57da3490a.tar.bz2 | |
re PR middle-end/52996 (ice in verify_loop_structure, at cfgloop.c:1567)
2012-12-21 Richard Biener <rguenther@suse.de>
PR tree-optimization/52996
* gcc.dg/torture/pr52996.c: New testcase.
From-SVN: r194659
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/pr52996.c | 33 |
2 files changed, 38 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index b89fa02..a51f09e 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2012-12-21 Richard Biener <rguenther@suse.de> + + PR tree-optimization/52996 + * gcc.dg/torture/pr52996.c: New testcase. + 2012-12-20 Jakub Jelinek <jakub@redhat.com> PR middle-end/55750 diff --git a/gcc/testsuite/gcc.dg/torture/pr52996.c b/gcc/testsuite/gcc.dg/torture/pr52996.c new file mode 100644 index 0000000..200bc36 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr52996.c @@ -0,0 +1,33 @@ +/* { dg-do compile } */
+/* { dg-options "-funswitch-loops" } */
+
+int a, b, c, d, e, f;
+void
+fn1 ()
+{
+ int g, h;
+lbl_173:
+ if (a)
+ c++;
+lbl_158:
+ e = 0;
+ h = 0;
+ for (; h > -8; h--)
+ {
+ g = 0;
+ for (; g <= 0; g += 1)
+ {
+ d = 1;
+ for (; d >= 0; d -= 1)
+ a = 1;
+ if (b)
+ break;
+ if (f)
+ return;
+ if (h)
+ goto lbl_158;
+ }
+ }
+ goto lbl_173;
+}
+
|