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| author | Joel Hutton <joel.hutton@arm.com> | 2020-11-19 10:39:38 +0000 |
|---|---|---|
| committer | Joel Hutton <joel.hutton@arm.com> | 2020-11-19 11:49:59 +0000 |
| commit | 9fc9573f9a5e9432e53c7de93985cfbd267f0309 (patch) | |
| tree | 036540bd548fffd4f3330fdd8e35940b1acda558 /gcc/tree-vect-stmts.c | |
| parent | ec46904edfec162f32b8b411301374afc8f5fcb5 (diff) | |
| download | gcc-9fc9573f9a5e9432e53c7de93985cfbd267f0309.zip gcc-9fc9573f9a5e9432e53c7de93985cfbd267f0309.tar.gz gcc-9fc9573f9a5e9432e53c7de93985cfbd267f0309.tar.bz2 | |
[2/3] [vect] Add widening add, subtract patterns
Add widening add, subtract patterns to tree-vect-patterns. Update the
widened code of patterns that detect PLUS_EXPR to also detect
WIDEN_PLUS_EXPR. These patterns take 2 vectors with N elements of size
S and perform an add/subtract on the elements, storing the results as N
elements of size 2*S (in 2 result vectors). This is implemented in the
aarch64 backend as addl,addl2 and subl,subl2 respectively. Add aarch64
tests for patterns.
gcc/ChangeLog:
* doc/generic.texi: Document new widen_plus/minus_lo/hi tree codes.
* doc/md.texi: Document new widenening add/subtract hi/lo optabs.
* expr.c (expand_expr_real_2): Add widen_add, widen_subtract cases.
* optabs-tree.c (optab_for_tree_code): Add case for widening optabs.
* optabs.def (OPTAB_D): Define vectorized widen add, subtracts.
* tree-cfg.c (verify_gimple_assign_binary): Add case for widening adds,
subtracts.
* tree-inline.c (estimate_operator_cost): Add case for widening adds,
subtracts.
* tree-vect-generic.c (expand_vector_operations_1): Add case for
widening adds, subtracts
* tree-vect-patterns.c (vect_recog_widen_add_pattern): New recog
pattern.
(vect_recog_widen_sub_pattern): New recog pattern.
(vect_recog_average_pattern): Update widened add code.
(vect_recog_average_pattern): Update widened add code.
* tree-vect-stmts.c (vectorizable_conversion): Add case for widened add,
subtract.
(supportable_widening_operation): Add case for widened add, subtract.
* tree.def
(WIDEN_PLUS_EXPR): New tree code.
(WIDEN_MINUS_EXPR): New tree code.
(VEC_WIDEN_ADD_HI_EXPR): New tree code.
(VEC_WIDEN_PLUS_LO_EXPR): New tree code.
(VEC_WIDEN_MINUS_HI_EXPR): New tree code.
(VEC_WIDEN_MINUS_LO_EXPR): New tree code.
gcc/testsuite/ChangeLog:
* gcc.target/aarch64/vect-widen-add.c: New test.
* gcc.target/aarch64/vect-widen-sub.c: New test.
Diffstat (limited to 'gcc/tree-vect-stmts.c')
| -rw-r--r-- | gcc/tree-vect-stmts.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c index 4e535fe..f88f07a 100644 --- a/gcc/tree-vect-stmts.c +++ b/gcc/tree-vect-stmts.c @@ -4571,6 +4571,8 @@ vectorizable_conversion (vec_info *vinfo, if (!CONVERT_EXPR_CODE_P (code) && code != FIX_TRUNC_EXPR && code != FLOAT_EXPR + && code != WIDEN_PLUS_EXPR + && code != WIDEN_MINUS_EXPR && code != WIDEN_MULT_EXPR && code != WIDEN_LSHIFT_EXPR) return false; @@ -4616,7 +4618,8 @@ vectorizable_conversion (vec_info *vinfo, if (op_type == binary_op) { - gcc_assert (code == WIDEN_MULT_EXPR || code == WIDEN_LSHIFT_EXPR); + gcc_assert (code == WIDEN_MULT_EXPR || code == WIDEN_LSHIFT_EXPR + || code == WIDEN_PLUS_EXPR || code == WIDEN_MINUS_EXPR); op1 = gimple_assign_rhs2 (stmt); tree vectype1_in; @@ -11535,6 +11538,16 @@ supportable_widening_operation (vec_info *vinfo, c2 = VEC_WIDEN_LSHIFT_HI_EXPR; break; + case WIDEN_PLUS_EXPR: + c1 = VEC_WIDEN_PLUS_LO_EXPR; + c2 = VEC_WIDEN_PLUS_HI_EXPR; + break; + + case WIDEN_MINUS_EXPR: + c1 = VEC_WIDEN_MINUS_LO_EXPR; + c2 = VEC_WIDEN_MINUS_HI_EXPR; + break; + CASE_CONVERT: c1 = VEC_UNPACK_LO_EXPR; c2 = VEC_UNPACK_HI_EXPR; |