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add test and make help message more verbose

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N. Engelhardt 2019-12-12 20:51:59 +01:00
parent 4c7cda1c8b
commit 1187e91c2f
2 changed files with 20 additions and 1 deletions
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7
passes/cmds/scratchpad.cc
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@ -2,6 +2,7 @@
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2012 Clifford Wolf <clifford@clifford.at>
* 2019 Nina Engelhardt <nak@symbioticeda.com>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
@ -30,14 +31,18 @@ struct ScratchpadPass : public Pass {
{
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n");
log(" scratchpad [ -get id | -set id val | -unset id | -copy id1 id2 ]\n");
log(" scratchpad [options]\n");
log("\n");
log("This pass allows to read and modify values from the scratchpad of the current\n");
log("design. Options:\n");
log(" -get <identifier>\n");
log(" print the value saved in the scratchpad under the given identifier\n");
log(" -set <identifier> <value>\n");
log(" save the given value in the scratchpad under the given identifier\n");
log(" -unset <identifier>\n");
log(" remove the entry for the given identifier from the scratchpad\n");
log(" -copy <identifier_from> <identifier_to>\n");
log(" copy the value of the first identifier to the second identifier\n");
log("The identifier may not contain whitespace. By convention, it is usually prefixed\n");
log("by the name of the pass that uses it, e.g. 'opt.did_something'. If the value\n");
log("contains whitespace, it must be enclosed in double quotes.\n");

14
tests/various/scratchpad.sh Executable file
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@ -0,0 +1,14 @@
#!/bin/bash
trap 'echo "ERROR in scratchpad.sh" >&2; exit 1' ERR
../../yosys -qp "scratchpad -set foo \"bar baz\"; \
scratchpad -copy foo oof; scratchpad -unset foo; \
tee -o scratchpad1.log scratchpad -get oof; \
tee -o scratchpad2.log scratchpad -get foo"
test "$(cat scratchpad1.log)" = "bar baz"
test "$(cat scratchpad2.log)" = "\"foo\" not set"
rm scratchpad1.log
rm scratchpad2.log