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| author | Richard Guenther <rguenther@suse.de> | 2008-03-28 13:44:41 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2008-03-28 13:44:41 +0000 |
| commit | 626f4dd8f52c0e85892dc4bd9f7bb2a1c87e2f3c (patch) | |
| tree | 8d73720c47928662de6a55c6d3b21b4071f113de /gcc | |
| parent | 161031e3ae276973782ca4d86782c54267621c0f (diff) | |
| download | gcc-626f4dd8f52c0e85892dc4bd9f7bb2a1c87e2f3c.zip gcc-626f4dd8f52c0e85892dc4bd9f7bb2a1c87e2f3c.tar.gz gcc-626f4dd8f52c0e85892dc4bd9f7bb2a1c87e2f3c.tar.bz2 | |
re PR rtl-optimization/19580 (missed load/store motion)
2008-03-28 Richard Guenther <rguenther@suse.de>
PR tree-optimization/19580
* gcc.dg/tree-ssa/loop-34.c: New testcase.
From-SVN: r133683
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/loop-34.c | 21 |
2 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 3fd0aa2..8392cfe 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,10 @@ 2008-03-28 Richard Guenther <rguenther@suse.de> + PR tree-optimization/19580 + * gcc.dg/tree-ssa/loop-34.c: New testcase. + +2008-03-28 Richard Guenther <rguenther@suse.de> + PR tree-optimization/30317 PR tree-optimization/30911 PR tree-optimization/34793 diff --git a/gcc/testsuite/gcc.dg/tree-ssa/loop-34.c b/gcc/testsuite/gcc.dg/tree-ssa/loop-34.c new file mode 100644 index 0000000..4a0d1ea --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/loop-34.c @@ -0,0 +1,21 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-lim-details" } */ + +int r[6]; + +void f (int n) +{ + while (-- n) + { + r [0] += r [5]; + r [1] += r [0]; + r [2] += r [1]; + r [3] += r [2]; + r [4] += r [3]; + r [5] += r [4]; + } +} + + +/* { dg-final { scan-tree-dump-times "Executing store motion of r" 6 "lim" } } */ +/* { dg-final { cleanup-tree-dump "lim" } } */ |