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| author | Richard Biener <rguenther@suse.de> | 2017-10-13 06:57:11 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2017-10-13 06:57:11 +0000 |
| commit | cae827b1a1a2f02d08fa0602e1cdaf991a8248ea (patch) | |
| tree | 04f9c8b68b60e096608ef25d8d8365e915731d06 /gcc/graphite-scop-detection.c | |
| parent | ca04e2cd566342ff5098d271d77cb6013adfefc9 (diff) | |
| download | gcc-cae827b1a1a2f02d08fa0602e1cdaf991a8248ea.zip gcc-cae827b1a1a2f02d08fa0602e1cdaf991a8248ea.tar.gz gcc-cae827b1a1a2f02d08fa0602e1cdaf991a8248ea.tar.bz2 | |
graphite-scop-detection.c (loop_ivs_can_be_represented): Remove.
2017-10-13 Richard Biener <rguenther@suse.de>
* graphite-scop-detection.c (loop_ivs_can_be_represented): Remove.
(scop_detection::harmful_loop_in_region): Remove premature
IV type restriction.
(scop_detection::graphite_can_represent_scev): We can handle
pointer IVs just fine.
From-SVN: r253705
Diffstat (limited to 'gcc/graphite-scop-detection.c')
| -rw-r--r-- | gcc/graphite-scop-detection.c | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/gcc/graphite-scop-detection.c b/gcc/graphite-scop-detection.c index 93ab035..3cd9932 100644 --- a/gcc/graphite-scop-detection.c +++ b/gcc/graphite-scop-detection.c @@ -254,28 +254,6 @@ dot_cfg () scops.release (); } -/* Can all ivs be represented by a signed integer? - As isl might generate negative values in its expressions, signed loop ivs - are required in the backend. */ - -static bool -loop_ivs_can_be_represented (loop_p loop) -{ - unsigned type_long_long = TYPE_PRECISION (long_long_integer_type_node); - for (gphi_iterator psi = gsi_start_phis (loop->header); !gsi_end_p (psi); - gsi_next (&psi)) - { - gphi *phi = psi.phi (); - tree res = PHI_RESULT (phi); - tree type = TREE_TYPE (res); - - if (TYPE_UNSIGNED (type) && TYPE_PRECISION (type) >= type_long_long) - return false; - } - - return true; -} - /* Returns a COND_EXPR statement when BB has a single predecessor, the edge between BB and its predecessor is not a loop exit edge, and the last statement of the single predecessor is a COND_EXPR. */ @@ -822,13 +800,6 @@ scop_detection::harmful_loop_in_region (sese_l scop) const return true; } - if (! loop_ivs_can_be_represented (loop)) - { - DEBUG_PRINT (dp << "[scop-detection-fail] loop_" << loop->num - << "IV cannot be represented.\n"); - return true; - } - /* Check if all loop nests have at least one data reference. ??? This check is expensive and loops premature at this point. If important to retain we can pre-compute this for all innermost @@ -968,14 +939,6 @@ scop_detection::graphite_can_represent_scev (tree scev) if (chrec_contains_undetermined (scev)) return false; - /* We disable the handling of pointer types, because it’s currently not - supported by Graphite with the isl AST generator. SSA_NAME nodes are - the only nodes, which are disabled in case they are pointers to object - types, but this can be changed. */ - - if (POINTER_TYPE_P (TREE_TYPE (scev)) && TREE_CODE (scev) == SSA_NAME) - return false; - switch (TREE_CODE (scev)) { case NEGATE_EXPR: |