[all-commits] [llvm/llvm-project] cd4ebb: [LazyCallGraph] Skip blockaddresses

[aeubanks via All-commits]

  Branch: refs/heads/release/13.x
  Home:   https://github.com/llvm/llvm-project
  Commit: cd4ebb2918ae6cd938aabc3e95d5739b4d067f83
      https://github.com/llvm/llvm-project/commit/cd4ebb2918ae6cd938aabc3e95d5739b4d067f83
  Author: Arthur Eubanks <aeubanks at google.com>
  Date:   2021-12-20 (Mon, 20 Dec 2021)

  Changed paths:
    M llvm/include/llvm/Analysis/LazyCallGraph.h
    A llvm/test/Analysis/LazyCallGraph/blockaddress.ll
    M llvm/test/Transforms/Attributor/IPConstantProp/dangling-block-address.ll
    M llvm/test/Transforms/Attributor/liveness.ll
    M llvm/unittests/Analysis/LazyCallGraphTest.cpp

  Log Message:
  -----------
  [LazyCallGraph] Skip blockaddresses

blockaddresses do not participate in the call graph since the only
instructions that use them must all return to someplace within the
current function. And passes cannot retrieve a function address from a
blockaddress.

This was suggested by efriedma in D58260.

Fixes PR50881.

Reviewed By: nickdesaulniers

Differential Revision: https://reviews.llvm.org/D112178

(cherry picked from commit 029f1a53448979365ab965572356b83edc82f755)