diff options
| author | Aditya Kumar <aditya.k7@samsung.com> | 2015-07-15 21:37:01 +0000 |
|---|---|---|
| committer | Sebastian Pop <spop@gcc.gnu.org> | 2015-07-15 21:37:01 +0000 |
| commit | d7f49f78a6446d958486ce2c96ed1727f6eca83e (patch) | |
| tree | 2e5b41ab4ae404aeba80a03d473d49a0a0d518e9 /gcc/graphite-scop-detection.c | |
| parent | 1ee9ef73c3f428df74ad1dad692b493f4210e049 (diff) | |
| download | gcc-d7f49f78a6446d958486ce2c96ed1727f6eca83e.tar.gz | |
[graphite] discard scops for which entry==exit
In this patch we discard the scops where entry and exit are the same BB.
This is an effort to remove graphite-scop-detection.c:limit_scops.
Removing the limit_scops function introduces correctness regressions.
We are making relevant changes in incremental steps to fix those bugs,
and finally we intend to remove limit_scops.
2015-06-29 Aditya Kumar <aditya.k7@samsung.com>
Sebastian Pop <s.pop@samsung.com>
* graphite-scop-detection.c (build_scops_1): Discard scops for which entry==exit
Co-Authored-By: Sebastian Pop <s.pop@samsung.com>
From-SVN: r225850
Diffstat (limited to 'gcc/graphite-scop-detection.c')
| -rw-r--r-- | gcc/graphite-scop-detection.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/gcc/graphite-scop-detection.c b/gcc/graphite-scop-detection.c index b45a6823df1..4fb4e028ac1 100644 --- a/gcc/graphite-scop-detection.c +++ b/gcc/graphite-scop-detection.c @@ -794,7 +794,14 @@ build_scops_1 (basic_block current, loop_p outermost_loop, { open_scop.exit = sinfo.exit; gcc_assert (open_scop.exit); - scops->safe_push (open_scop); + if (open_scop.entry != open_scop.exit) + scops->safe_push (open_scop); + else + { + sinfo.difficult = true; + sinfo.exits = false; + sinfo.exit = NULL; + } } result.exit = sinfo.exit; |