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| author | Richard Guenther <rguenther@suse.de> | 2010-05-06 09:04:00 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2010-05-06 09:04:00 +0000 |
| commit | e3bdfed62abe1c163b93162e53a377b21b5658dc (patch) | |
| tree | 06f32bf636037d2caf5f7c51678ee35c661cafa5 /gcc/testsuite | |
| parent | a81b065a47a134e66937060f7ae14f1ae939b7b5 (diff) | |
| download | gcc-e3bdfed62abe1c163b93162e53a377b21b5658dc.zip gcc-e3bdfed62abe1c163b93162e53a377b21b5658dc.tar.gz gcc-e3bdfed62abe1c163b93162e53a377b21b5658dc.tar.bz2 | |
re PR tree-optimization/43934 (LIM should handle PHI nodes)
2010-05-06 Richard Guenther <rguenther@suse.de>
PR tree-optimization/43934
* tree-ssa-loop-im.c (movement_possibility): Handle PHI nodes.
(stmt_cost): Likewise.
(extract_true_false_args_from_phi): New helper.
(determine_max_movement): For PHI nodes verify we can hoist them
and compute their cost.
(determine_invariantness_stmt): Handle PHI nodes.
(move_computations_stmt): Likewise. Hoist PHI nodes in
if-converted form using COND_EXPRs.
(move_computations): Return TODO_cleanup_cfg if we hoisted PHI
nodes.
(tree_ssa_lim): Likewise.
* tree-flow.h (tree_ssa_lim): Adjust prototype.
* tree-ssa-loop.c (tree_ssa_loop_im): Return todo.
* gcc.dg/tree-ssa/ssa-lim-9.c: New testcase.
From-SVN: r159099
Diffstat (limited to 'gcc/testsuite')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 15 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/ssa-lim-9.c | 20 |
2 files changed, 35 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 36eea3d..2eebcf3 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,18 @@ +2010-05-06 Richard Guenther <rguenther@suse.de> + + PR tree-optimization/43934 + * gcc.dg/tree-ssa/ssa-lim-9.c: New testcase. + +2010-05-06 Richard Guenther <rguenther@suse.de> + + PR tree-optimization/43987 + * gcc.c-torture/execute/pr43987.c: New testcase. + * gcc.dg/torture/pta-escape-1.c: Adjust. + * gcc.dg/tree-ssa/pta-escape-1.c: Likewise. + * gcc.dg/tree-ssa/pta-escape-2.c: Likewise. + * gcc.dg/tree-ssa/pta-escape-3.c: Likewise. + * gcc.dg/ipa/ipa-pta-11.c: Likewise. + 2010-04-22 Jakub Jelinek <jakub@redhat.com> Dodji Seketeli <dodji@redhat.com> diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-lim-9.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-lim-9.c new file mode 100644 index 0000000..c5a6765 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-lim-9.c @@ -0,0 +1,20 @@ +/* { dg-do compile } */ +/* { dg-options "-O -fdump-tree-lim1-details" } */ + +void bar (int); +void foo (int n, int m) +{ + unsigned i; + for (i = 0; i < n; ++i) + { + int x; + if (m < 0) + x = 1+n; + else + x = m-n; + bar (x); + } +} + +/* { dg-final { scan-tree-dump-times "Moving PHI node" 1 "lim1" } } */ +/* { dg-final { cleanup-tree-dump "lim1" } } */ |