mirror of https://github.com/YosysHQ/yosys.git
289 lines
7.5 KiB
Plaintext
289 lines
7.5 KiB
Plaintext
# Tests for opt_compact_prefix.
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log -header "Forward dense pack self-equivalence"
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log -push
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design -reset
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verific -cfg veri_optimize_wide_selector 1
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verific -cfg db_infer_wide_muxes_post_elaboration 0
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read -sv opt_compact_prefix_pack.sv
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verific -import opt_compact_prefix_pack
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proc; opt_clean
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rename opt_compact_prefix_pack gold
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read -sv opt_compact_prefix_pack.sv
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verific -import opt_compact_prefix_pack
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proc; opt_clean
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opt_compact_prefix
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opt_clean
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rename opt_compact_prefix_pack gate
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miter -equiv -flatten -make_assert gold gate miter
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hierarchy -top miter
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proc; opt; memory; opt
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sat -prove-asserts -verify
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design -reset
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log -pop
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log -header "Forward dense pack structural rewrite"
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log -push
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design -reset
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verific -cfg veri_optimize_wide_selector 1
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verific -cfg db_infer_wide_muxes_post_elaboration 0
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read -sv opt_compact_prefix_pack.sv
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verific -import opt_compact_prefix_pack
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proc; opt_clean
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opt_compact_prefix
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opt_clean
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select -assert-none t:$shl
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select -assert-none t:$mux
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select -assert-count 7 t:$add
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select -assert-count 8 t:$gt
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design -reset
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log -pop
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log -header "Reverse suffix read self-equivalence"
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log -push
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design -reset
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verific -cfg veri_optimize_wide_selector 1
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verific -cfg db_infer_wide_muxes_post_elaboration 0
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read -sv opt_compact_prefix_sub.sv
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verific -import opt_compact_prefix_sub
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proc; opt_clean
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rename opt_compact_prefix_sub gold
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read -sv opt_compact_prefix_sub.sv
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verific -import opt_compact_prefix_sub
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proc; opt_clean
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opt_compact_prefix
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opt_clean
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rename opt_compact_prefix_sub gate
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miter -equiv -flatten -make_assert gold gate miter
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hierarchy -top miter
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proc; opt; memory; opt
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sat -prove-asserts -verify
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design -reset
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log -pop
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log -header "Reverse suffix read structural rewrite"
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log -push
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design -reset
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verific -cfg veri_optimize_wide_selector 1
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verific -cfg db_infer_wide_muxes_post_elaboration 0
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read -sv opt_compact_prefix_sub.sv
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verific -import opt_compact_prefix_sub
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proc; opt_clean
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opt_compact_prefix
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opt_clean
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select -assert-none t:$sub
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select -assert-none t:$mux
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select -assert-min 1 t:$add
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select -assert-min 1 t:$eq
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design -reset
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log -pop
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log -header "Negative: unrelated mux module unchanged"
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log -push
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design -reset
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read_verilog <<EOF
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module top(input wire sel, input wire [7:0] a, b, output wire [7:0] y);
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assign y = sel ? a : b;
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endmodule
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EOF
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proc; opt_clean
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select -assert-count 1 t:$mux
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opt_compact_prefix
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select -assert-count 1 t:$mux
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design -reset
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log -pop
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log -header "Exact regression size: 32-bit forward dense pack"
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log -push
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design -reset
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verific -cfg veri_optimize_wide_selector 1
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verific -cfg db_infer_wide_muxes_post_elaboration 0
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read -sv opt_compact_prefix_pack32.sv
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verific -import opt_compact_prefix_pack32
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proc; opt_clean
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opt_compact_prefix
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opt_clean
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select -assert-none t:$shl
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select -assert-none t:$mux
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select -assert-count 31 t:$add
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select -assert-count 32 t:$gt
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design -reset
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log -pop
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log -header "Exact regression size: 16-entry reverse suffix read"
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log -push
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design -reset
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verific -cfg veri_optimize_wide_selector 1
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verific -cfg db_infer_wide_muxes_post_elaboration 0
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read -sv opt_compact_prefix_sub16.sv
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verific -import opt_compact_prefix_sub16
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proc; opt_clean
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opt_compact_prefix
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opt_clean
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select -assert-none t:$sub
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select -assert-none t:$mux
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select -assert-min 1 t:$add
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select -assert-min 1 t:$eq
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design -reset
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log -pop
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log -header "Reverse suffix read with add-by-minus-one decrement"
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log -push
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design -reset
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verific -cfg veri_optimize_wide_selector 1
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verific -cfg db_infer_wide_muxes_post_elaboration 0
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read -sv opt_compact_prefix_addneg.sv
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verific -import opt_compact_prefix_addneg
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proc; opt_clean
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rename opt_compact_prefix_addneg gold
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read -sv opt_compact_prefix_addneg.sv
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verific -import opt_compact_prefix_addneg
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proc; opt_clean
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opt_compact_prefix
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opt_clean
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rename opt_compact_prefix_addneg gate
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miter -equiv -flatten -make_assert gold gate miter
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hierarchy -top miter
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proc; opt; memory; opt
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sat -prove-asserts -verify
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design -reset
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log -pop
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log -header "Max width: forward pack left unchanged"
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log -push
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design -reset
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verific -cfg veri_optimize_wide_selector 1
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verific -cfg db_infer_wide_muxes_post_elaboration 0
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read -sv opt_compact_prefix_pack32.sv
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verific -import opt_compact_prefix_pack32
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proc; opt_clean
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select -assert-min 1 t:$shl
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opt_compact_prefix -max_width 8
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select -assert-min 1 t:$shl
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select -assert-none w:*compact*
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design -reset
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log -pop
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log -header "Max width: reverse suffix read left unchanged"
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log -push
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design -reset
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verific -cfg veri_optimize_wide_selector 1
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verific -cfg db_infer_wide_muxes_post_elaboration 0
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read -sv opt_compact_prefix_sub16.sv
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verific -import opt_compact_prefix_sub16
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proc; opt_clean
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select -assert-min 1 t:$sub
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opt_compact_prefix -max_width 8
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select -assert-min 1 t:$sub
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select -assert-none w:*compact*
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design -reset
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log -pop
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log -header "Negative near miss: same port names passthrough"
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log -push
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design -reset
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verific -cfg veri_optimize_wide_selector 1
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verific -cfg db_infer_wide_muxes_post_elaboration 0
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read -sv opt_compact_prefix_near_miss.sv
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verific -import opt_compact_prefix_pack_passthrough
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proc; opt_clean
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opt_compact_prefix
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select -assert-none w:*compact*
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design -reset
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log -pop
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log -header "Negative near miss: same port names nonzero pack init"
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log -push
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design -reset
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verific -cfg veri_optimize_wide_selector 1
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verific -cfg db_infer_wide_muxes_post_elaboration 0
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read -sv opt_compact_prefix_near_miss.sv
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verific -import opt_compact_prefix_pack_nonzero_init
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proc; opt_clean
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opt_compact_prefix
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select -assert-none w:*compact*
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design -reset
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log -pop
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log -header "Negative near miss: same port names non-unit pack stride"
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log -push
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design -reset
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verific -cfg veri_optimize_wide_selector 1
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verific -cfg db_infer_wide_muxes_post_elaboration 0
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read -sv opt_compact_prefix_near_miss.sv
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verific -import opt_compact_prefix_pack_stride2
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proc; opt_clean
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opt_compact_prefix
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select -assert-none w:*compact*
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design -reset
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log -pop
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log -header "Negative near miss: same port names nonzero reverse init"
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log -push
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design -reset
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verific -cfg veri_optimize_wide_selector 1
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verific -cfg db_infer_wide_muxes_post_elaboration 0
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read -sv opt_compact_prefix_near_miss.sv
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verific -import opt_compact_prefix_sub_nonzero_init
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proc; opt_clean
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opt_compact_prefix
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select -assert-none w:*compact*
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design -reset
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log -pop
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log -header "Scaling: 64-bit forward pack"
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log -push
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design -reset
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verific -cfg veri_optimize_wide_selector 1
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verific -cfg db_infer_wide_muxes_post_elaboration 0
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read -sv opt_compact_prefix_scale.sv
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verific -import opt_compact_prefix_pack64
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proc; opt_clean
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opt_compact_prefix
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opt_clean
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select -assert-none t:$shl
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select -assert-none t:$mux
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select -assert-count 63 t:$add
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select -assert-count 64 t:$gt
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design -reset
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log -pop
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log -header "Scaling: 128-bit forward pack with explicit max_width"
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log -push
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design -reset
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verific -cfg veri_optimize_wide_selector 1
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verific -cfg db_infer_wide_muxes_post_elaboration 0
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read -sv opt_compact_prefix_scale.sv
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verific -import opt_compact_prefix_pack128
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proc; opt_clean
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opt_compact_prefix -max_width 128
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opt_clean
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select -assert-none t:$shl
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select -assert-none t:$mux
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select -assert-count 127 t:$add
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select -assert-count 128 t:$gt
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design -reset
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log -pop
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log -header "Multi-module: only matching module rewrites"
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log -push
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design -reset
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verific -cfg veri_optimize_wide_selector 1
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verific -cfg db_infer_wide_muxes_post_elaboration 0
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read -sv opt_compact_prefix_multi.sv
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verific -import opt_compact_prefix_multi_match opt_compact_prefix_multi_keep
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proc; opt_clean
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opt_compact_prefix
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opt_clean
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select -assert-none opt_compact_prefix_multi_match/t:$shl
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select -assert-none opt_compact_prefix_multi_match/t:$mux
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select -assert-count 1 opt_compact_prefix_multi_keep/t:$mux
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design -reset
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log -pop
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