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Rmx500 latencies #193

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25 changes: 13 additions & 12 deletions gcc/config/riscv/arcv-rmx500.md
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Original file line number Diff line number Diff line change
Expand Up @@ -35,17 +35,18 @@
(define_cpu_unit "arcv_rmx500_issueB_fuse1" "arcv_rmx500")

;; Instruction reservation for arithmetic instructions (pipe A, pipe B).
;; instructions can be issued back to back - after 1 cycle the result is available
(define_insn_reservation "arcv_rmx500_alu_early_arith" 1
(and (eq_attr "tune" "arcv_rmx500")
(eq_attr "type" "unknown,move,const,arith,shift,slt,multi,auipc,nop,logical,\
bitmanip,min,max,minu,maxu,clz,ctz,atomic,\
condmove,mvpair,zicond,cpop,clmul"))
"((arcv_rmx500_issueA_fuse0 + arcv_rmx500_ALU_A_fuse0_early) | (arcv_rmx500_issueA_fuse1 + arcv_rmx500_ALU_A_fuse1_early)) | ((arcv_rmx500_issueB_fuse0 + arcv_rmx500_ALU_B_fuse0_early) | (arcv_rmx500_issueB_fuse1 + arcv_rmx500_ALU_B_fuse1_early))")

(define_insn_reservation "arcv_rmx500_imul_fused" 1
(define_insn_reservation "arcv_rmx500_imul_fused" 3
(and (eq_attr "tune" "arcv_rmx500")
(eq_attr "type" "imul_fused"))
"(arcv_rmx500_issueA_fuse0 + arcv_rmx500_issueA_fuse1 + arcv_rmx500_ALU_A_fuse0_early + arcv_rmx500_ALU_A_fuse1_early + arcv_rmx500_MPY32)")
"(arcv_rmx500_issueA_fuse0 + arcv_rmx500_issueA_fuse1 + arcv_rmx500_ALU_A_fuse0_early + arcv_rmx500_ALU_A_fuse1_early + arcv_rmx500_MPY32), nothing*2")

(define_insn_reservation "arcv_rmx500_alu_fused" 1
(and (eq_attr "tune" "arcv_rmx500")
Expand All @@ -58,36 +59,36 @@
(eq_attr "type" "branch,jump,call,jalr,ret,trap"))
"arcv_rmx500_issueA_fuse0 | arcv_rmx500_issueA_fuse1")

(define_insn_reservation "arcv_rmx500_div_insn" 22
(define_insn_reservation "arcv_rmx500_div_insn" 21
(and (eq_attr "tune" "arcv_rmx500")
(eq_attr "type" "idiv"))
"arcv_rmx500_issueA_fuse0 + arcv_rmx500_DIV, nothing*21")
"arcv_rmx500_issueA_fuse0 + arcv_rmx500_DIV, nothing*20")

(define_insn_reservation "arcv_rmx500_mpy32_insn" 10
(define_insn_reservation "arcv_rmx500_mpy32_insn" 3
(and (eq_attr "tune" "arcv_rmx500")
(eq_attr "type" "imul"))
"arcv_rmx500_issueA_fuse0 + arcv_rmx500_MPY32, nothing*9")
"arcv_rmx500_issueA_fuse0 + arcv_rmx500_MPY32, nothing*2")

(define_insn_reservation "arcv_rmx500_load_insn" 1
(define_insn_reservation "arcv_rmx500_load_insn" 2
(and (eq_attr "tune" "arcv_rmx500")
(eq_attr "type" "load,fpload"))
"(arcv_rmx500_issueB_fuse0 + arcv_rmx500_DMP_fuse0) | (arcv_rmx500_issueB_fuse1 + arcv_rmx500_DMP_fuse1)")
"(arcv_rmx500_issueB_fuse0 + arcv_rmx500_DMP_fuse0) | (arcv_rmx500_issueB_fuse1 + arcv_rmx500_DMP_fuse1), nothing")

(define_insn_reservation "arcv_rmx500_store_insn" 1
(and (eq_attr "tune" "arcv_rmx500")
(eq_attr "type" "store,fpstore"))
"(arcv_rmx500_issueB_fuse0 + arcv_rmx500_DMP_fuse0) | (arcv_rmx500_issueB_fuse1 + arcv_rmx500_DMP_fuse1)")

;; (soft) floating points
(define_insn_reservation "arcv_rmx500_xfer" 2
(define_insn_reservation "arcv_rmx500_xfer" 3
(and (eq_attr "tune" "arcv_rmx500")
(eq_attr "type" "mfc,mtc,fcvt,fcvt_i2f,fcvt_f2i,fmove,fcmp"))
"(arcv_rmx500_ALU_A_fuse0_early | arcv_rmx500_ALU_B_fuse0_early), nothing")
"(arcv_rmx500_ALU_A_fuse0_early | arcv_rmx500_ALU_B_fuse0_early), nothing*2")

(define_insn_reservation "arcv_rmx500_fmul" 2
(define_insn_reservation "arcv_rmx500_fmul" 3
(and (eq_attr "tune" "arcv_rmx500")
(eq_attr "type" "fadd,fmul,fmadd"))
"(arcv_rmx500_ALU_A_fuse0_early | arcv_rmx500_ALU_B_fuse0_early,nothing)")
"(arcv_rmx500_ALU_A_fuse0_early | arcv_rmx500_ALU_B_fuse0_early,nothing*2)")

(define_insn_reservation "arcv_rmx500_fdiv" 17
(and (eq_attr "tune" "arcv_rmx500")
Expand Down
36 changes: 18 additions & 18 deletions gcc/config/riscv/riscv.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -605,17 +605,17 @@ static const struct riscv_tune_param arcv_rmx100_tune_info = {
NULL, /* loop_align */
};

/* Costs to use when optimizing for Synopsys RMX-500. */
static const struct riscv_tune_param arcv_rmx500_tune_info = {
{COSTS_N_INSNS (2), COSTS_N_INSNS (2)}, /* fp_add */
{COSTS_N_INSNS (2), COSTS_N_INSNS (2)}, /* fp_mul */
{COSTS_N_INSNS (17), COSTS_N_INSNS (17)}, /* fp_div */
{COSTS_N_INSNS (2), COSTS_N_INSNS (2)}, /* int_mul */
{COSTS_N_INSNS (17), COSTS_N_INSNS (17)}, /* int_div */
1, /* issue_rate */
4, /* branch_cost */
/* Costs to use when optimizing for Synopsys RHX-100. */
static const struct riscv_tune_param arcv_rhx100_tune_info = {
{COSTS_N_INSNS (4), COSTS_N_INSNS (5)}, /* fp_add */
{COSTS_N_INSNS (4), COSTS_N_INSNS (5)}, /* fp_mul */
{COSTS_N_INSNS (20), COSTS_N_INSNS (20)}, /* fp_div */
{COSTS_N_INSNS (4), COSTS_N_INSNS (4)}, /* int_mul */
{COSTS_N_INSNS (27), COSTS_N_INSNS (43)}, /* int_div */
4, /* issue_rate */
9, /* branch_cost */
2, /* memory_cost */
4, /* fmv_cost */
8, /* fmv_cost */
false, /* slow_unaligned_access */
false, /* vector_unaligned_access */
false, /* use_divmod_expansion */
Expand All @@ -627,8 +627,8 @@ static const struct riscv_tune_param arcv_rmx500_tune_info = {
NULL, /* loop_align */
};

/* Costs to use when optimizing for Synopsys RHX-100. */
static const struct riscv_tune_param arcv_rhx100_tune_info = {
/* Costs to use when optimizing for Synopsys RPX-100. */
static const struct riscv_tune_param arcv_rpx100_tune_info = {
{COSTS_N_INSNS (4), COSTS_N_INSNS (5)}, /* fp_add */
{COSTS_N_INSNS (4), COSTS_N_INSNS (5)}, /* fp_mul */
{COSTS_N_INSNS (20), COSTS_N_INSNS (20)}, /* fp_div */
Expand All @@ -649,13 +649,13 @@ static const struct riscv_tune_param arcv_rhx100_tune_info = {
NULL, /* loop_align */
};

/* Costs to use when optimizing for Synopsys RPX-100. */
static const struct riscv_tune_param arcv_rpx100_tune_info = {
{COSTS_N_INSNS (4), COSTS_N_INSNS (5)}, /* fp_add */
{COSTS_N_INSNS (4), COSTS_N_INSNS (5)}, /* fp_mul */
{COSTS_N_INSNS (20), COSTS_N_INSNS (20)}, /* fp_div */
/* Costs to use when optimizing for Synopsys RMX-500. */
static const struct riscv_tune_param arcv_rmx500_tune_info = {
{COSTS_N_INSNS (4), COSTS_N_INSNS (64)}, /* fp_add */
{COSTS_N_INSNS (4), COSTS_N_INSNS (75)}, /* fp_mul */
{COSTS_N_INSNS (20), COSTS_N_INSNS (120)}, /* fp_div */
{COSTS_N_INSNS (4), COSTS_N_INSNS (4)}, /* int_mul */
{COSTS_N_INSNS (27), COSTS_N_INSNS (43)}, /* int_div */
{COSTS_N_INSNS (27), COSTS_N_INSNS (87)}, /* int_div */
4, /* issue_rate */
9, /* branch_cost */
2, /* memory_cost */
Expand Down