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| -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 c5ea4811458..161b2a03f17 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 6543dc7d26a..3a230584853 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)) |