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arcv: use correct costs and latencies for the RMX-500 #191

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arcv: use correct costs and latencies for the RMX-500 #191

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10 changes: 5 additions & 5 deletions gcc/config/riscv/arcv-rmx500.md
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Original file line number Diff line number Diff line change
Expand Up @@ -42,7 +42,7 @@
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)")
Expand All @@ -63,12 +63,12 @@
(eq_attr "type" "idiv"))
"arcv_rmx500_issueA_fuse0 + arcv_rmx500_DIV, nothing*21")

(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)")
Expand Down Expand Up @@ -101,5 +101,5 @@
(define_bypass 1 "arcv_rmx500_load_insn" "arcv_rmx500_mpy*_insn")
(define_bypass 1 "arcv_rmx500_load_insn" "arcv_rmx500_load_insn")
(define_bypass 1 "arcv_rmx500_load_insn" "arcv_rmx500_div_insn")
(define_bypass 9 "arcv_rmx500_mpy32_insn" "arcv_rmx500_mpy*_insn")
(define_bypass 3 "arcv_rmx500_mpy32_insn" "arcv_rmx500_mpy*_insn")
(define_bypass 9 "arcv_rmx500_mpy32_insn" "arcv_rmx500_div_insn")
16 changes: 8 additions & 8 deletions gcc/config/riscv/riscv.cc
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Expand Up @@ -607,15 +607,15 @@ static const struct riscv_tune_param arcv_rmx100_tune_info = {

/* 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_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 Down