[all-commits] [llvm/llvm-project] 1b4e3d: [BFI][CGP] Add limited support for detecting misse...

[hjyamauchi via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 1b4e3def0362f93ef1ec7f5837a6b74e82132b8a
      https://github.com/llvm/llvm-project/commit/1b4e3def0362f93ef1ec7f5837a6b74e82132b8a
  Author: Hiroshi Yamauchi <yamauchi at google.com>
  Date:   2020-05-07 (Thu, 07 May 2020)

  Changed paths:
    M llvm/include/llvm/Analysis/BlockFrequencyInfo.h
    M llvm/include/llvm/Analysis/BlockFrequencyInfoImpl.h
    M llvm/lib/Analysis/BlockFrequencyInfo.cpp
    M llvm/lib/CodeGen/CodeGenPrepare.cpp
    M llvm/test/CodeGen/AArch64/aarch64-tbz.ll

  Log Message:
  -----------
  [BFI][CGP] Add limited support for detecting missed BFI updates and fix one in CodeGenPrepare.

Summary:
This helps detect some missed BFI updates during CodeGenPrepare.

This is debug build only and disabled behind a flag.

Fix a missed update in CodeGenPrepare::dupRetToEnableTailCallOpts().

Reviewers: davidxl

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D77417