[all-commits] [llvm/llvm-project] 0cc063: Use .text.unlikely and .text.eh prefixes for Machi...

[Snehasish Kumar via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 0cc063a8ffc896aa82ebe4b11003f0bbd78d6d5b
      https://github.com/llvm/llvm-project/commit/0cc063a8ffc896aa82ebe4b11003f0bbd78d6d5b
  Author: Snehasish Kumar <snehasishk at google.com>
  Date:   2020-04-24 (Fri, 24 Apr 2020)

  Changed paths:
    M llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
    M llvm/test/CodeGen/X86/basicblock-sections-clusters-branches.ll
    M llvm/test/CodeGen/X86/basicblock-sections-clusters-eh.ll
    M llvm/test/CodeGen/X86/basicblock-sections-clusters.ll
    M llvm/test/CodeGen/X86/basicblock-sections-cold.ll

  Log Message:
  -----------
  Use .text.unlikely and .text.eh prefixes for MachineBasicBlock sections.

Summary:
Instead of adding a ".unlikely" or ".eh" suffix for machine basic blocks,
this change updates the behaviour to use an appropriate prefix
instead. This allows lld to group basic block sections together
when -z,keep-text-section-prefix is specified and matches the behaviour
observed in gcc.

Reviewers: tmsriram, mtrofin, efriedma

Reviewed By: tmsriram, efriedma

Subscribers: eli.friedman, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D78742