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Merge pull request #5389 from jix/sva_continue

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verific: New `-sva-continue-on-error` import option
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Jannis Harder 2025-09-29 15:07:54 +02:00 • committed by GitHub
commit 6a7372626a
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7 changed files with 187 additions and 27 deletions
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38
tests/verific/sva_continue_on_err.ys Normal file
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verific -sv <<EOF
module top(input clk, input a, input b);
prop_supported: assert property (@(posedge clk) a ##1 b |=> b);
prop_unsupported1: assert property (@(posedge clk) a ##1 b #=# b);
prop_unsupported2: assert property (@(posedge clk) a ##1 @(posedge b) ##1 a);
sequence local_var_seq;
logic v;
(1, v = a) ##1 b ##1 (v == a);
endsequence
prop_unsupported3: assert property (@(posedge clk) local_var_seq);
endmodule
EOF
logger -expect warning "Mixed clocking is currently not supported" 1
logger -expect warning "Verific SVA primitive sva_non_overlapped_followed_by .* is currently unsupported in this context" 1
logger -expect warning "SVA sequences with local variable assignments are currently not supported" 1
logger -expect warning "Encountered 3 items containing unsupported SVA" 1
verific -import -sva-continue-on-err top
logger -check-expected
select -assert-count 4 top/t:$assert
select -assert-count 4 top/a:unsupported_sva top/prop_supported %% top/t:$assert %i
select -assert-count 3 top/a:unsupported_sva
select -assert-count 3 top/a:unsupported_sva top/prop_unsupported* %i
select -assert-count 1 top/a:unsupported_sva top/prop_unsupported1 %i
select -assert-count 1 top/a:unsupported_sva top/prop_unsupported2 %i
select -assert-count 1 top/a:unsupported_sva top/prop_unsupported3 %i
select -assert-count 0 top/a:unsupported_sva top/prop_supported %i
select -assert-count 1 top/prop_supported
logger -expect error "uses unsupported SVA constructs." 1
hierarchy -smtcheck -top top
logger -check-expected

31
tests/verific/sva_continue_on_err_explosion.ys Normal file
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verific -sv <<EOF
module top(input clk, input a, input b);
prop_supported1: assert property (@(posedge clk) a ##1 b |=> b);
prop_exploding: assert property (@(posedge clk)
((a [*7] ##1 b) [*11]) and
((a [*11] ##1 b) [*7]) and
((a [*13] ##1 b) [*5]) and
((a [*5] ##1 b) [*13])
);
prop_supported2: assert property (@(posedge clk) a [*5] ##1 b |=> b);
endmodule
EOF
logger -expect warning "Stopping to prevent exponential design size explosion." 1
verific -import -sva-continue-on-err top
logger -check-expected
select -assert-count 3 top/t:$assert
select -assert-count 1 top/a:unsupported_sva top/prop_exploding %% top/t:$assert %i
select -assert-count 0 top/a:unsupported_sva top/prop_supported1 %i
select -assert-count 0 top/a:unsupported_sva top/prop_supported2 %i
select -assert-count 2 top/prop_supported*
logger -expect error "uses unsupported SVA constructs." 1
hierarchy -smtcheck -top top
logger -check-expected

9
tests/verific/sva_no_continue_on_err.ys Normal file
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verific -sv <<EOF
module top(input clk, input a, input b);
prop_unsupported: assert property (@(posedge clk) a ##1 @(posedge b) ##1 a);
endmodule;
EOF
logger -expect error "Mixed clocking is currently not supported" 1
verific -import top