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| author | Richard Sandiford <richard.sandiford@arm.com> | 2019-09-19 13:33:55 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2019-09-19 13:33:55 +0000 |
| commit | c449d3ae28ff4e133114fb67dbf7dcc7a95ca5d5 (patch) | |
| tree | 12ab56e51ea7fe069d7e8ffa1c0b6e41ea5252ba /gcc/tree-vectorizer.h | |
| parent | 37bc3aa0474f21b7a678b09951634de3205d014e (diff) | |
| download | gcc-c449d3ae28ff4e133114fb67dbf7dcc7a95ca5d5.zip gcc-c449d3ae28ff4e133114fb67dbf7dcc7a95ca5d5.tar.gz gcc-c449d3ae28ff4e133114fb67dbf7dcc7a95ca5d5.tar.bz2 | |
Enforce correct COND_EXPR order for EXTRACT_LAST_REDUCTION
For conditional reductions, the "then" value needs to be the candidate
value calculated by this iteration while the "else" value needs to be
the result carried over from previous iterations. If the COND_EXPR
is the other way around, we need to swap it.
2019-09-19 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* tree-vectorizer.h (vectorizable_condition): Take an int
reduction index instead of a boolean flag.
* tree-vect-stmts.c (vectorizable_condition): Likewise.
Swap the "then" and "else" values for EXTRACT_LAST_REDUCTION
reductions if the reduction accumulator is the "then" rather
than the "else" value.
(vect_analyze_stmt): Update call accordingly.
(vect_transform_stmt): Likewise.
* tree-vect-loop.c (vectorizable_reduction): Likewise,
asserting that the index is > 0.
From-SVN: r275962
Diffstat (limited to 'gcc/tree-vectorizer.h')
| -rw-r--r-- | gcc/tree-vectorizer.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/tree-vectorizer.h b/gcc/tree-vectorizer.h index ac6e899..aef0ff8 100644 --- a/gcc/tree-vectorizer.h +++ b/gcc/tree-vectorizer.h @@ -1534,7 +1534,7 @@ extern void vect_remove_stores (stmt_vec_info); extern opt_result vect_analyze_stmt (stmt_vec_info, bool *, slp_tree, slp_instance, stmt_vector_for_cost *); extern bool vectorizable_condition (stmt_vec_info, gimple_stmt_iterator *, - stmt_vec_info *, bool, slp_tree, + stmt_vec_info *, int, slp_tree, stmt_vector_for_cost *); extern bool vectorizable_shift (stmt_vec_info, gimple_stmt_iterator *, stmt_vec_info *, slp_tree, |