llvm-project
4c3e0320 - [BOLT] Move call probe information to CallSiteInfo

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107 days ago
[BOLT] Move call probe information to CallSiteInfo Pseudo probe matching (#100446) needs callee information for call probes. Embed call probe information (probe id, inline tree node, indirect flag) into CallSiteInfo. As a consequence: - Remove call probes from PseudoProbeInfo to avoid duplication, making it only contain block probes. - Probe grouping across inline tree nodes becomes more potent + allows to unambiguously elide block id 1 (common case). Block mask (blx) encoding becomes a low-ROI optimization and will be replaced by a more compact encoding leveraging simplified PseudoProbeInfo in #166680. The size increase is ~3% for an XL profile (461->475MB). Compact block probe encoding shrinks it by ~6%. Test Plan: updated pseudoprobe-decoding-{inline,noinline}.test Reviewers: paschalis-mpeis, ayermolo, yota9, yozhu, rafaelauler, maksfb Reviewed By: rafaelauler Pull Request: https://github.com/llvm/llvm-project/pull/165490
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