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https://github.com/YosysHQ/yosys
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31 lines
1.4 KiB
Bash
31 lines
1.4 KiB
Bash
set -euo pipefail
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YS=../../yosys
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mkdir -p temp
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# non-POSIX sed -i inconsistency workaround
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remove_empty_lines() {
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local file="$1"
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sed '/^$/d' "$file" > temp/tmp
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mv temp/tmp "$file"
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}
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# write_rtlil and dump are equivalent
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$YS -p "read_verilog -sv everything.v; copy alu zzz; proc zzz; dump -o temp/roundtrip-text.dump.il; write_rtlil temp/roundtrip-text.write.il"
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remove_empty_lines temp/roundtrip-text.dump.il
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remove_empty_lines temp/roundtrip-text.write.il
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# Trim first line ("Generated by Yosys ...")
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tail -n +2 temp/roundtrip-text.write.il > temp/roundtrip-text.write-nogen.il
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diff temp/roundtrip-text.dump.il temp/roundtrip-text.write-nogen.il
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# Loading and writing it out again doesn't change the RTLIL
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$YS -p "read_rtlil temp/roundtrip-text.dump.il; write_rtlil temp/roundtrip-text.reload.il"
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remove_empty_lines temp/roundtrip-text.reload.il
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tail -n +2 temp/roundtrip-text.reload.il > temp/roundtrip-text.reload-nogen.il
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diff temp/roundtrip-text.dump.il temp/roundtrip-text.reload-nogen.il
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# Hashing differences don't change the RTLIL
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$YS --hash-seed=2345678 -p "read_rtlil temp/roundtrip-text.dump.il; write_rtlil temp/roundtrip-text.reload-hash.il"
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remove_empty_lines temp/roundtrip-text.reload-hash.il
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tail -n +2 temp/roundtrip-text.reload-hash.il > temp/roundtrip-text.reload-hash-nogen.il
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diff temp/roundtrip-text.dump.il temp/roundtrip-text.reload-hash-nogen.il
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