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| author | Martin Liska <mliska@suse.cz> | 2020-06-01 11:21:33 +0200 |
|---|---|---|
| committer | Martin Liska <mliska@suse.cz> | 2020-07-30 10:31:30 +0200 |
| commit | da346efd27eca48a8fe2e07d7e18b2c77ead0e2d (patch) | |
| tree | e7fb7b5d48a2935a5b1f5ea0e8ebd9c799d7a19f /gcc | |
| parent | 2c58f5cadfac338a67723fd6e41c9097760c4a33 (diff) | |
| download | gcc-da346efd27eca48a8fe2e07d7e18b2c77ead0e2d.zip gcc-da346efd27eca48a8fe2e07d7e18b2c77ead0e2d.tar.gz gcc-da346efd27eca48a8fe2e07d7e18b2c77ead0e2d.tar.bz2 | |
Re-format zen memcpy/memset costs.
The patch improves readability of the memcpy and memset
expansion strategies.
gcc/ChangeLog:
* config/i386/x86-tune-costs.h: Change code formatting.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/i386/x86-tune-costs.h | 38 |
1 files changed, 28 insertions, 10 deletions
diff --git a/gcc/config/i386/x86-tune-costs.h b/gcc/config/i386/x86-tune-costs.h index c73917e..1169178 100644 --- a/gcc/config/i386/x86-tune-costs.h +++ b/gcc/config/i386/x86-tune-costs.h @@ -1311,14 +1311,23 @@ const struct processor_costs bdver_cost = { very small blocks it is better to use loop. For large blocks, libcall can do nontemporary accesses and beat inline considerably. */ static stringop_algs znver1_memcpy[2] = { - {libcall, {{6, loop, false}, {14, unrolled_loop, false}, + /* 32-bit tuning. */ + {libcall, {{6, loop, false}, + {14, unrolled_loop, false}, {-1, rep_prefix_4_byte, false}}}, - {libcall, {{16, loop, false}, {8192, rep_prefix_8_byte, false}, + /* 64-bit tuning. */ + {libcall, {{16, loop, false}, + {8192, rep_prefix_8_byte, false}, {-1, libcall, false}}}}; static stringop_algs znver1_memset[2] = { - {libcall, {{8, loop, false}, {24, unrolled_loop, false}, - {2048, rep_prefix_4_byte, false}, {-1, libcall, false}}}, - {libcall, {{48, unrolled_loop, false}, {8192, rep_prefix_8_byte, false}, + /* 32-bit tuning. */ + {libcall, {{8, loop, false}, + {24, unrolled_loop, false}, + {2048, rep_prefix_4_byte, false}, + {-1, libcall, false}}}, + /* 64-bit tuning. */ + {libcall, {{48, unrolled_loop, false}, + {8192, rep_prefix_8_byte, false}, {-1, libcall, false}}}}; struct processor_costs znver1_cost = { { @@ -1448,14 +1457,23 @@ struct processor_costs znver1_cost = { very small blocks it is better to use loop. For large blocks, libcall can do nontemporary accesses and beat inline considerably. */ static stringop_algs znver2_memcpy[2] = { - {libcall, {{6, loop, false}, {14, unrolled_loop, false}, + /* 32-bit tuning. */ + {libcall, {{6, loop, false}, + {14, unrolled_loop, false}, {-1, rep_prefix_4_byte, false}}}, - {libcall, {{16, loop, false}, {64, rep_prefix_4_byte, false}, + /* 64-bit tuning. */ + {libcall, {{16, loop, false}, + {64, rep_prefix_4_byte, false}, {-1, libcall, false}}}}; static stringop_algs znver2_memset[2] = { - {libcall, {{8, loop, false}, {24, unrolled_loop, false}, - {2048, rep_prefix_4_byte, false}, {-1, libcall, false}}}, - {libcall, {{24, rep_prefix_4_byte, false}, {128, rep_prefix_8_byte, false}, + /* 32-bit tuning. */ + {libcall, {{8, loop, false}, + {24, unrolled_loop, false}, + {2048, rep_prefix_4_byte, false} + {-1, libcall, false}}}, + /* 64-bit tuning. */ + {libcall, {{24, rep_prefix_4_byte, false}, + {128, rep_prefix_8_byte, false}, {-1, libcall, false}}}}; struct processor_costs znver2_cost = { |