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| author | Jakub Jelinek <jakub@redhat.com> | 2014-11-14 20:41:00 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2014-11-14 20:41:00 +0100 |
| commit | a601baa0f795f5f3df9bfa326be8feb1d7e0c2dc (patch) | |
| tree | 35d901bf887338d461c434fc17fdc6cff7b770df | |
| parent | 4c46b5f0c213c750a752468338af54d249e1da03 (diff) | |
| download | gcc-a601baa0f795f5f3df9bfa326be8feb1d7e0c2dc.zip gcc-a601baa0f795f5f3df9bfa326be8feb1d7e0c2dc.tar.gz gcc-a601baa0f795f5f3df9bfa326be8feb1d7e0c2dc.tar.bz2 | |
tree-ssa.dce.c (eliminate_unnecessary_stmts): Eliminate IFN_GOMP_SIMD_LANE without lhs as useless.
* tree-ssa.dce.c (eliminate_unnecessary_stmts): Eliminate
IFN_GOMP_SIMD_LANE without lhs as useless.
From-SVN: r217584
| -rw-r--r-- | gcc/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/tree-ssa-dce.c | 5 |
2 files changed, 8 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c5ea481..161b2a0 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,8 @@ 2014-11-14 Jakub Jelinek <jakub@redhat.com> + * tree-ssa.dce.c (eliminate_unnecessary_stmts): Eliminate + IFN_GOMP_SIMD_LANE without lhs as useless. + * ipa-pure-const.c (struct funct_state_d): Add can_free field. (varying_state): Add true for can_free. (check_call): For builtin or internal !nonfreeing_call_p set diff --git a/gcc/tree-ssa-dce.c b/gcc/tree-ssa-dce.c index 6543dc7..3a23058 100644 --- a/gcc/tree-ssa-dce.c +++ b/gcc/tree-ssa-dce.c @@ -1402,6 +1402,11 @@ eliminate_unnecessary_stmts (void) maybe_clean_or_replace_eh_stmt (stmt, stmt); update_stmt (stmt); release_ssa_name (name); + + /* GOMP_SIMD_LANE without lhs is not needed. */ + if (gimple_call_internal_p (stmt) + && gimple_call_internal_fn (stmt) == IFN_GOMP_SIMD_LANE) + remove_dead_stmt (&gsi, bb); } else if (gimple_call_internal_p (stmt)) switch (gimple_call_internal_fn (stmt)) |