diff options
| author | Richard Sandiford <richard.sandiford@linaro.org> | 2017-12-20 12:56:50 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2017-12-20 12:56:50 +0000 |
| commit | 8a91d5455313fb3c4fc07935d848921012cb297f (patch) | |
| tree | c67e2c4060eba6622d9a7853ef5030b77da88297 /gcc/poly-int-types.h | |
| parent | 7df9b6f12abfa68c13d9485855dbe22da3167d49 (diff) | |
poly_int: store merging
This patch makes pass_store_merging track polynomial sizes
and offsets. store_immediate_info remains restricted to stores
with a constant offset and size.
2017-12-20 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* poly-int-types.h (round_down_to_byte_boundary): New macro.
(round_up_to_byte_boundary): Likewise.
* expr.h (get_bit_range): Add temporary shim.
* gimple-ssa-store-merging.c (store_operand_info): Change the
bitsize, bitpos, bitregion_start and bitregion_end fields from
unsigned HOST_WIDE_INT to poly_uint64.
(merged_store_group): Likewise load_align_base.
(compatible_load_p, compatible_load_p): Update accordingly.
(imm_store_chain_info::coalesce_immediate_stores): Likewise.
(split_group, imm_store_chain_info::output_merged_store): Likewise.
(mem_valid_for_store_merging): Return the bitsize, bitpos,
bitregion_start and bitregion_end as poly_uint64s rather than
unsigned HOST_WIDE_INTs. Track polynomial offsets internally.
(handled_load): Take the bitsize, bitpos,
bitregion_start and bitregion_end as poly_uint64s rather than
unsigned HOST_WIDE_INTs.
(pass_store_merging::process_store): Update call to
mem_valid_for_store_merging.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r255894
Diffstat (limited to 'gcc/poly-int-types.h')
| -rw-r--r-- | gcc/poly-int-types.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/poly-int-types.h b/gcc/poly-int-types.h index 1c62ff88ff7..d681c374fc1 100644 --- a/gcc/poly-int-types.h +++ b/gcc/poly-int-types.h @@ -60,6 +60,18 @@ typedef poly_int<NUM_POLY_INT_COEFFS, widest_int> poly_widest_int; of bytes in size. */ #define num_trailing_bits(X) force_get_misalignment (X, BITS_PER_UNIT) +/* Round bit quantity X down to the nearest byte boundary. + + This is safe because non-constant mode sizes must be a whole number + of bytes in size. */ +#define round_down_to_byte_boundary(X) force_align_down (X, BITS_PER_UNIT) + +/* Round bit quantity X up the nearest byte boundary. + + This is safe because non-constant mode sizes must be a whole number + of bytes in size. */ +#define round_up_to_byte_boundary(X) force_align_up (X, BITS_PER_UNIT) + /* Return the size of an element in a vector of size SIZE, given that the vector has NELTS elements. The return value is in the same units as SIZE (either bits or bytes). |