[opt] Add --save-stats option #167304
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[opt] Add --save-stats option #167304
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This patch adds a Clang-compatible --save-stats option to opt, to provide an easy to use way to save LLVM statistics files when working with opt on the middle end. This is a follow up on the addition to `llc`: llvm#163967 Like on Clang, one can specify --save-stats, --save-stats=cwd, and --save-stats=obj with the same semantics and JSON format. The pre-existing --stats option is not affected. The implementation extracts the flag and its methods into the common `CodeGen/CommandFlags` as `LLVM_ABI`, using a new registration class to conservatively enable opt-in rather than let all tools take it. Its only needed for llc and opt for now. Then it refactors llc and adds support for opt.
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dtcxzyw
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Nov 11, 2025
| cl::init(false)); | ||
| CGBINDOPT(DisableIntegratedAS); | ||
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| #undef CGBINDOPT |
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Should be moved after RegisterSaveStatsFlag
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I intentionally removed it because I dont think its needed anymore moving CGBINDOPT to a wider scope, becoming a redundant compile time overhead
jroelofs
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Nov 11, 2025
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This patch adds a Clang-compatible --save-stats option to opt, to provide an easy to use way to save LLVM statistics files when working with opt on the middle end. This is a follow up on the addition to `llc`: llvm#163967 Like on Clang, one can specify --save-stats, --save-stats=cwd, and --save-stats=obj with the same semantics and JSON format. The pre-existing --stats option is not affected. The implementation extracts the flag and its methods into the common `CodeGen/CommandFlags` as `LLVM_ABI`, using a new registration class to conservatively enable opt-in rather than let all tools take it. Its only needed for llc and opt for now. Then it refactors llc and adds support for opt. (cherry-pick 35ffe10)
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This patch adds a Clang-compatible --save-stats option to opt, to provide an easy to use way to save LLVM statistics files when working with opt on the middle end.
This is a follow up on the addition to
llc: #163967Like on Clang, one can specify --save-stats, --save-stats=cwd, and --save-stats=obj with the same semantics and JSON format. The pre-existing --stats option is not affected.
The implementation extracts the flag and its methods into the common
CodeGen/CommandFlagsasLLVM_ABI, using a new registration class to conservatively enable opt-in rather than let all tools take it. Its only needed for llc and opt for now. Then it refactors llc and adds support for opt.