From: Martin Liska Date: Mon, 1 Jun 2020 09:21:33 +0000 (+0200) Subject: Re-format zen memcpy/memset costs. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=da346efd27eca48a8fe2e07d7e18b2c77ead0e2d;p=gcc.git 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. --- diff --git a/gcc/config/i386/x86-tune-costs.h b/gcc/config/i386/x86-tune-costs.h index c73917e5a62..1169178433f 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 = {