[all-commits] [llvm/llvm-project] 519b0e: [PowerPC] Pre-commit FISel with PC-Rel test

[Nemanja Ivanovic via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 519b0e3e9d6db21922d9a59c467d8b8709323a40
      https://github.com/llvm/llvm-project/commit/519b0e3e9d6db21922d9a59c467d8b8709323a40
  Author: Nemanja Ivanovic <nemanja.i.ibm at gmail.com>
  Date:   2020-08-21 (Fri, 21 Aug 2020)

  Changed paths:
    A llvm/test/CodeGen/PowerPC/fast-isel-pcrel.ll

  Log Message:
  -----------
  [PowerPC] Pre-commit FISel with PC-Rel test

Our handling of PC-Relative addressing is currently broken with
Fast ISel in 3 ways:
- FISel emits calls without handling all the PC-Rel intricacies
- FISel materializes FP constants through the TOC
- FISel materializes GV's through the TOC

As it would be unnecessarily tedious to implement all the handling
for PC-Rel in Fast ISel, we will turn off FISel for anything that
generates references to the TOC.