[all-commits] [llvm/llvm-project] 118366: [PowerPC] Implement R_PPC64_REL24_NOTOC calls, cal...

[Victor Huang via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 118366dcb6c35239c1c816d109230d6f7f3660af
      https://github.com/llvm/llvm-project/commit/118366dcb6c35239c1c816d109230d6f7f3660af
  Author: Victor Huang <wei.huang at ibm.com>
  Date:   2020-07-10 (Fri, 10 Jul 2020)

  Changed paths:
    M lld/ELF/Arch/PPC64.cpp
    A lld/test/ELF/Inputs/ppc64-callee-global-hidden.s
    A lld/test/ELF/ppc64-pcrel-call-to-pcrel.s

  Log Message:
  -----------
  [PowerPC] Implement R_PPC64_REL24_NOTOC calls, callee also has no TOC

The PC Relative code allows for calls that are marked with the relocation
R_PPC64_REL24_NOTOC. This indicates that the caller does not have a valid TOC
pointer in R2 and does not require R2 to be restored after the call.

This patch is added to support local calls to callees tha also do not have a TOC.

Reviewed By: sfertile, MaskRay, stefanp

Differential Revision: https://reviews.llvm.org/D82816