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* x86-tune-costs.h (core_cost): Fix div, move and sqrt latencies.

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From-SVN: r253934
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Jan Hubicka 2017-10-20 14:25:18 +02:00 • committed by Jan Hubicka
parent 1031b5772a
commit ffa3ce5322
2 changed files with 24 additions and 17 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2017-10-19 Jan Hubicka <hubicka@ucw.cz>
* x86-tune-costs.h (core_cost): Fix div, move and sqrt latencies.
2017-10-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/82603

37
gcc/config/i386/x86-tune-costs.h
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@ -2305,38 +2305,40 @@ struct processor_costs core_cost = {
COSTS_N_INSNS (4), /* HI */
COSTS_N_INSNS (3), /* SI */
COSTS_N_INSNS (4), /* DI */
COSTS_N_INSNS (2)}, /* other */
COSTS_N_INSNS (4)}, /* other */
0, /* cost of multiply per each bit set */
{COSTS_N_INSNS (18), /* cost of a divide/mod for QI */
COSTS_N_INSNS (26), /* HI */
COSTS_N_INSNS (42), /* SI */
COSTS_N_INSNS (74), /* DI */
COSTS_N_INSNS (74)}, /* other */
{COSTS_N_INSNS (8), /* cost of a divide/mod for QI */
COSTS_N_INSNS (8), /* HI */
/* 8-11 */
COSTS_N_INSNS (11), /* SI */
/* 24-81 */
COSTS_N_INSNS (81), /* DI */
COSTS_N_INSNS (81)}, /* other */
COSTS_N_INSNS (1), /* cost of movsx */
COSTS_N_INSNS (1), /* cost of movzx */
8, /* "large" insn */
17, /* MOVE_RATIO */
4, /* cost for loading QImode using movzbl */
6, /* cost for loading QImode using movzbl */
{4, 4, 4}, /* cost of loading integer registers
in QImode, HImode and SImode.
Relative to reg-reg move (2). */
{4, 4, 4}, /* cost of storing integer registers */
4, /* cost of reg,reg fld/fst */
{12, 12, 12}, /* cost of loading fp registers
{6, 6, 6}, /* cost of storing integer registers */
2, /* cost of reg,reg fld/fst */
{6, 6, 8}, /* cost of loading fp registers
in SFmode, DFmode and XFmode */
{6, 6, 8}, /* cost of storing fp registers
{8, 6, 10}, /* cost of storing fp registers
in SFmode, DFmode and XFmode */
2, /* cost of moving MMX register */
{8, 8}, /* cost of loading MMX registers
{6, 6}, /* cost of loading MMX registers
in SImode and DImode */
{8, 8}, /* cost of storing MMX registers
{6, 6}, /* cost of storing MMX registers
in SImode and DImode */
2, /* cost of moving SSE register */
{8, 8, 8}, /* cost of loading SSE registers
{6, 6, 6}, /* cost of loading SSE registers
in SImode, DImode and TImode */
{8, 8, 8}, /* cost of storing SSE registers
{6, 6, 6}, /* cost of storing SSE registers
in SImode, DImode and TImode */
5, /* MMX or SSE register to integer */
2, /* MMX or SSE register to integer */
64, /* size of l1 cache. */
512, /* size of l2 cache. */
64, /* size of prefetch block */
@ -2345,10 +2347,11 @@ struct processor_costs core_cost = {
3, /* Branch cost */
COSTS_N_INSNS (3), /* cost of FADD and FSUB insns. */
COSTS_N_INSNS (5), /* cost of FMUL instruction. */
/* 10-24 */
COSTS_N_INSNS (24), /* cost of FDIV instruction. */
COSTS_N_INSNS (1), /* cost of FABS instruction. */
COSTS_N_INSNS (1), /* cost of FCHS instruction. */
COSTS_N_INSNS (24), /* cost of FSQRT instruction. */
COSTS_N_INSNS (23), /* cost of FSQRT instruction. */
COSTS_N_INSNS (1), /* cost of cheap SSE instruction. */
COSTS_N_INSNS (3), /* cost of ADDSS/SD SUBSS/SD insns. */