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authorMingming Liu <mingmingl@google.com>2025-10-14 21:15:31 -0700
committerGitHub <noreply@github.com>2025-10-14 21:15:31 -0700
commitc63002eb9a7eafd2eab4f25b17d38f5fe73ae6b5 (patch)
tree0e181a22a9f0b2d9bcd4ebf20119031796ad9adc /llvm/lib/Support/SourceMgr.cpp
parent9a46060aedc6bde26e939999de36442a23c07783 (diff)
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[NFC][StaticDataProfileInfo] Refactor StaticDataProfileInfo::getConstantSectionPrefix and extract analysis based on PGO-counter to be a helper function (#162388)
`StaticDataProfileInfo::getConstantSectionPrefix` is used twice in codegen ([1] and [2]) to emit section prefix for constants. Before this patch, its implementation does analysis using PGO-counters, and PGO-counters are only available on module-internal constants. After this patch, the PGO-counter analysis are extracted to a helper function, and returns enum rather than StringPrefix. This way, the follow up patch https://github.com/llvm/llvm-project/pull/163325 can extend this function to use global variable section prefix and compute a max (the hotter one). [1] https://github.com/llvm/llvm-project/blob/975fba1b499422713e88cd6f374569f3bd38335e/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp#L3014-L3019 [2] https://github.com/llvm/llvm-project/blob/975fba1b499422713e88cd6f374569f3bd38335e/llvm/lib/CodeGen/StaticDataAnnotator.cpp#L77-L84
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