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| author | Richard Sandiford <richard.sandiford@arm.com> | 2021-03-26 16:08:38 +0000 |
|---|---|---|
| committer | Richard Sandiford <richard.sandiford@arm.com> | 2021-03-26 16:08:38 +0000 |
| commit | 6b8b0c8e243bdc122a9ddd42030275494b1148ff (patch) | |
| tree | 8fd8df66a926282c55eac251c7ddd91c22391052 /gcc/ira.c | |
| parent | 1205a8cadb6bd41cdf5b13d7aca8fb44332002e5 (diff) | |
| download | gcc-6b8b0c8e243bdc122a9ddd42030275494b1148ff.zip gcc-6b8b0c8e243bdc122a9ddd42030275494b1148ff.tar.gz gcc-6b8b0c8e243bdc122a9ddd42030275494b1148ff.tar.bz2 | |
aarch64: Add costs for LD[34] and ST[34] postincrements
Most postincrements are cheap on Neoverse V1, but it's
generally better to avoid them on LD[34] and ST[34] instructions.
This patch adds separate address costs fields for these cases.
Other CPUs continue to use the same costs for all postincrements.
gcc/
* config/aarch64/aarch64-protos.h
(cpu_addrcost_table::post_modify_ld3_st3): New member variable.
(cpu_addrcost_table::post_modify_ld4_st4): Likewise.
* config/aarch64/aarch64.c (generic_addrcost_table): Update
accordingly, using the same costs as for post_modify.
(exynosm1_addrcost_table, xgene1_addrcost_table): Likewise.
(thunderx2t99_addrcost_table, thunderx3t110_addrcost_table):
(tsv110_addrcost_table, qdf24xx_addrcost_table): Likewise.
(a64fx_addrcost_table): Likewise.
(neoversev1_addrcost_table): New.
(neoversev1_tunings): Use neoversev1_addrcost_table.
(aarch64_address_cost): Use the new post_modify costs for CImode
and XImode.
Diffstat (limited to 'gcc/ira.c')
0 files changed, 0 insertions, 0 deletions