[PATCH] D79485: [BPI] Improve static heuristics for "cold" paths.

[Evgeniy via Phabricator via llvm-commits]

ebrevnov updated this revision to Diff 262860.
ebrevnov added a comment.

Number of changes:

1. Previous version had an issue and was not able to propagate estimated weight from loop exits (in case more than 1 exit) to its entries. To fix that we introduce LoopData structure and trakc weight for loops explicitly.
2. Returned old behavior for 'invoke' heuristics to dominate 'cold' heuristics.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D79485/new/

https://reviews.llvm.org/D79485

Files:
  llvm/include/llvm/Analysis/BranchProbabilityInfo.h
  llvm/include/llvm/Analysis/LazyBranchProbabilityInfo.h
  llvm/lib/Analysis/BranchProbabilityInfo.cpp
  llvm/lib/Analysis/OptimizationRemarkEmitter.cpp
  llvm/lib/Transforms/Scalar/LoopPredication.cpp
  llvm/test/Analysis/BlockFrequencyInfo/redundant_edges.ll
  llvm/test/Analysis/BranchProbabilityInfo/basic.ll
  llvm/test/Analysis/BranchProbabilityInfo/deopt-intrinsic.ll
  llvm/test/Analysis/BranchProbabilityInfo/deopt-invoke.ll
  llvm/test/Analysis/BranchProbabilityInfo/loop.ll
  llvm/test/Analysis/BranchProbabilityInfo/noreturn.ll
  llvm/test/Analysis/BranchProbabilityInfo/unreachable.ll
  llvm/test/CodeGen/ARM/ifcvt-branch-weight-bug.ll
  llvm/test/CodeGen/ARM/sub-cmp-peephole.ll
  llvm/test/CodeGen/PowerPC/pr36292.ll
  llvm/test/CodeGen/PowerPC/sms-cpy-1.ll
  llvm/test/CodeGen/SPARC/missinglabel.ll
  llvm/test/CodeGen/SystemZ/debuginstr-cgp.mir
  llvm/test/CodeGen/X86/2008-04-17-CoalescerBug.ll
  llvm/test/CodeGen/X86/block-placement.ll
  llvm/test/CodeGen/X86/misched_phys_reg_assign_order.ll
  llvm/test/CodeGen/X86/pr27501.ll
  llvm/test/CodeGen/X86/pr37916.ll
  llvm/test/CodeGen/X86/ragreedy-hoist-spill.ll

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