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Merge pull request #1790 from YosysHQ/eddie/opt_expr_xor

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opt_expr: optimise $xor/$xnor/$_XOR_/$_XNOR_ -s with constant inputs
This commit is contained in:
Eddie Hung
2020-04-01 14:17:01 -07:00
committed by GitHub
parent e79bc45975 0c0dc4ffc3
commit 4ae7f3a8ed
4 changed files with 92 additions and 10 deletions
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5
tests/arch/anlogic/fsm.ys
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@@ -10,9 +10,6 @@ sat -verify -prove-asserts -show-public -set-at 1 in_reset 1 -seq 20 -prove-skip
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
cd fsm # Constrain all select calls below inside the top module
select -assert-count 1 t:AL_MAP_LUT2
select -assert-count 5 t:AL_MAP_LUT5
select -assert-count 1 t:AL_MAP_LUT6
select -assert-count 6 t:AL_MAP_SEQ
select -assert-none t:AL_MAP_LUT2 t:AL_MAP_LUT5 t:AL_MAP_LUT6 t:AL_MAP_SEQ %% t:* %D
select -assert-none t:AL_MAP_LUT* t:AL_MAP_SEQ %% t:* %D

5
tests/arch/efinix/fsm.ys
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@@ -10,7 +10,6 @@ sat -verify -prove-asserts -show-public -set-at 1 in_reset 1 -seq 20 -prove-skip
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
cd fsm # Constrain all select calls below inside the top module
select -assert-count 1 t:EFX_GBUFCE
select -assert-count 6 t:EFX_FF
select -assert-count 15 t:EFX_LUT4
select -assert-count 1 t:EFX_GBUFCE
select -assert-count 6 t:EFX_FF
select -assert-none t:EFX_GBUFCE t:EFX_FF t:EFX_LUT4 %% t:* %D