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tests: add opt_expr tests

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This commit is contained in:
Eddie Hung 2020-04-23 15:58:36 -07:00
parent e7058593f4
commit b84415094c
5 changed files with 365 additions and 0 deletions
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89
tests/opt/opt_expr_xor.ys
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@ -50,3 +50,92 @@ assign z = a~^1'b1;
endmodule
EOT
equiv_opt opt_expr
# Single-bit $xor
design -reset
read_verilog -noopt <<EOT
module gold(input i, output o);
assign o = 1'bx ^ i;
endmodule
EOT
select -assert-count 1 t:$xor
copy gold coarse
copy gold fine
copy gold coarse_keepdc
copy gold fine_keepdc
cd coarse
opt_expr
select -assert-none c:*
cd fine
simplemap
opt_expr
select -assert-none c:*
cd
miter -equiv -flatten -make_assert -make_outputs -ignore_gold_x gold coarse miter
sat -verify -prove-asserts -show-ports -enable_undef miter
miter -equiv -flatten -make_assert -make_outputs coarse fine miter2
sat -verify -prove-asserts -show-ports -enable_undef miter2
cd coarse_keepdc
opt_expr -keepdc
select -assert-count 1 c:*
cd fine_keepdc
simplemap
opt_expr -keepdc
select -assert-count 1 c:*
cd
miter -equiv -flatten -make_assert -make_outputs gold coarse_keepdc miter3
sat -verify -prove-asserts -show-ports -enable_undef miter3
miter -equiv -flatten -make_assert -make_outputs coarse_keepdc fine_keepdc miter4
sat -verify -prove-asserts -show-ports -enable_undef miter4
# Multi-bit $xor
design -reset
read_verilog -noopt <<EOT
module gold(input i, output [6:0] o);
assign o = {1'bx, 1'b0, 1'b0, 1'b1, 1'bx, 1'b1, i} ^ {7{i}};
endmodule
EOT
select -assert-count 1 t:$xor
copy gold coarse
copy gold fine
copy gold coarse_keepdc
copy gold fine_keepdc
cd coarse
opt_expr -fine
select -assert-count 1 t:$xor # FIXME: Should be zero
cd fine
simplemap
opt_expr
select -assert-none t:$_XOR_
cd
miter -equiv -flatten -make_assert -make_outputs -ignore_gold_x gold coarse miter
sat -verify -prove-asserts -show-ports -enable_undef miter
miter -equiv -flatten -make_assert -make_outputs coarse fine miter2
sat -verify -prove-asserts -show-ports -enable_undef miter2
cd coarse_keepdc
opt_expr -keepdc -fine
dump
select -assert-count 2 t:$xor $ FIXME: Should be one
cd fine_keepdc
simplemap
opt_expr -keepdc
select -assert-count t c:$_XOR_
cd
miter -equiv -flatten -make_assert -make_outputs gold coarse_keepdc miter3
sat -verify -prove-asserts -show-ports -enable_undef -set-def in_i miter3
miter -equiv -flatten -make_assert -make_outputs coarse_keepdc fine_keepdc miter4
sat -verify -prove-asserts -show-ports -enable_undef miter4