diff options
| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-09-17 07:47:49 +0000 |
|---|---|---|
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-09-17 07:47:49 +0000 |
| commit | 157cd65f8f218bfa79ae6765409f6bb122e71496 (patch) | |
| tree | 5503f1fa8c1ef7d6aec0b94ebada2f7c4bcb7308 /gcc | |
| parent | 3f8e75547a9af18ed9e2da238869b34f8e651553 (diff) | |
| download | gcc-157cd65f8f218bfa79ae6765409f6bb122e71496.tar.gz | |
2013-09-17 Richard Biener <rguenther@suse.de>
PR tree-optimization/58432
* tree-loop-distribution.c (tree_loop_distribution): Also
scan PHIs for outside loop uses and seed a partition from them.
* gcc.dg/pr58432.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@202644 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr58432.c | 17 | ||||
| -rw-r--r-- | gcc/tree-loop-distribution.c | 11 |
4 files changed, 39 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ebb3564381e..6c75db04de1 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2013-09-17 Richard Biener <rguenther@suse.de> + + PR tree-optimization/58432 + * tree-loop-distribution.c (tree_loop_distribution): Also + scan PHIs for outside loop uses and seed a partition from them. + 2013-09-17 Bin Cheng <bin.cheng@arm.com> * gimple-ssa-strength-reduction.c (backtrace_base_for_ref): New. diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index fedd45760bb..050e2206caa 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2013-09-17 Richard Biener <rguenther@suse.de> + + PR tree-optimization/58432 + * gcc.dg/pr58432.c: New testcase. + 2013-09-17 Bin Cheng <bin.cheng@arm.com> * gcc.dg/tree-ssa/slsr-39.c: New test. diff --git a/gcc/testsuite/gcc.dg/pr58432.c b/gcc/testsuite/gcc.dg/pr58432.c new file mode 100644 index 00000000000..22a720f142f --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr58432.c @@ -0,0 +1,17 @@ +/* { dg-do compile } */ +/* { dg-require-profiling "-fprofile-generate" } */ +/* { dg-options "-O3 -fprofile-generate" } */ + +struct { + int prefix; + int dir_idx; +} *a; +int b; +void fn1() { + int *c, *d; + for (; b; b++) + if (d[b]) { + c[b] = d[b]; + a[0].dir_idx = 0; + } +} diff --git a/gcc/tree-loop-distribution.c b/gcc/tree-loop-distribution.c index e3e4e12b025..7482d8c68bc 100644 --- a/gcc/tree-loop-distribution.c +++ b/gcc/tree-loop-distribution.c @@ -1676,6 +1676,17 @@ tree_loop_distribution (void) for (i = 0; i < loop->num_nodes; ++i) { gimple_stmt_iterator gsi; + for (gsi = gsi_start_phis (bbs[i]); !gsi_end_p (gsi); gsi_next (&gsi)) + { + gimple phi = gsi_stmt (gsi); + if (virtual_operand_p (gimple_phi_result (phi))) + continue; + /* Distribute stmts which have defs that are used outside of + the loop. */ + if (!stmt_has_scalar_dependences_outside_loop (loop, phi)) + continue; + work_list.safe_push (phi); + } for (gsi = gsi_start_bb (bbs[i]); !gsi_end_p (gsi); gsi_next (&gsi)) { gimple stmt = gsi_stmt (gsi); |