[all-commits] [llvm/llvm-project] 5bf191: [llvm-profgen] Fix index out of bounds error while...

[ictwanglei via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5bf191a381bba84edc791710e914147de23691dd
      https://github.com/llvm/llvm-project/commit/5bf191a381bba84edc791710e914147de23691dd
  Author: wlei <wlei at fb.com>
  Date:   2021-11-05 (Fri, 05 Nov 2021)

  Changed paths:
    A llvm/test/tools/llvm-profgen/Inputs/out-of-bounds.raw.prof
    M llvm/test/tools/llvm-profgen/inline-noprobe.test
    M llvm/tools/llvm-profgen/ProfileGenerator.cpp
    M llvm/tools/llvm-profgen/ProfiledBinary.cpp
    M llvm/tools/llvm-profgen/ProfiledBinary.h

  Log Message:
  -----------
  [llvm-profgen] Fix index out of bounds error while using ip.advance

Previously we assume there're some non-executing sections at the bottom of the text section so that we won't hit the array's bound. But on BOLTed binary, it turned out .bolt section is at the bottom of text section which can be profiled, then it crash llvm-profgen. This change try to fix it.

Reviewed By: hoy, wenlei

Differential Revision: https://reviews.llvm.org/D113238