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Merge pull request #6024 from YosysHQ/nella/scl-build-date

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Include build datetime in scl cache hash
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nella 2026-07-13 11:54:45 +00:00 • committed by GitHub
commit dddf137888
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4 changed files with 11 additions and 0 deletions
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1
kernel/version.cc.in
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@ -1,4 +1,5 @@
namespace Yosys {
const char *yosys_version_str = "@YOSYS_BUILD_INFO@";
const char *yosys_git_hash_str = "@YOSYS_CHECKOUT_INFO@";
const char *yosys_build_datetime_str = __DATE__ " " __TIME__;
}

1
kernel/yosys.h
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@ -82,6 +82,7 @@ extern std::set<std::string> yosys_input_files, yosys_output_files;
// from kernel/version_*.o (cc source generated from Makefile)
extern const char *yosys_version_str;
extern const char *yosys_git_hash_str;
extern const char *yosys_build_datetime_str;
const char* yosys_maybe_version();
// from passes/cmds/design.cc

2
passes/techmap/liberty_cache.h
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@ -49,6 +49,8 @@ inline std::string convert_liberty_files_to_merged_scl(const std::vector<std::st
}
hash_input += dont_use_args;
// Include build datetime so caches from other builds are not reused
hash_input += yosys_build_datetime_str;
unsigned int hash = 0;
for (char c : hash_input)

7
tests/liberty/scl_cache.ys Normal file
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@ -0,0 +1,7 @@
read_verilog small.v
synth -top small
abc -liberty normal.lib
logger -expect log "using cached merged SCL" 1
abc -liberty normal.lib
logger -check-expected