[all-commits] [llvm/llvm-project] 544181: [llvm-objdump][AArch64] Fix ADRP target label calc...

[chbessonova via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 54418125191ce83af65569348301a23a3dd892a5
      https://github.com/llvm/llvm-project/commit/54418125191ce83af65569348301a23a3dd892a5
  Author: Kristina Bessonova <kbessonova at accesssoftek.com>
  Date:   2022-12-18 (Sun, 18 Dec 2022)

  Changed paths:
    M llvm/lib/Target/AArch64/MCTargetDesc/AArch64MCTargetDesc.cpp
    M llvm/test/tools/llvm-objdump/ELF/AArch64/pcrel-address.yaml

  Log Message:
  -----------
  [llvm-objdump][AArch64] Fix ADRP target label calculation

This patch makes ADRP target label address calculations the same as
label address calculations (see AArch64InstPrinter::printAdrpLabel()).

Otherwise the target label looks misleading as ADRP's immediate offset is,
actually, not an offset to this PC, but an offset to the current PC's
page address in pages.

See for example, `llvm-objdump/ELF/AArch64/pcrel-address.yaml`.
Before this patch the target label `<_start+0x80>` represents the
address `0x200100 + 0x80` while `0x220000` is expected.

Note that with this patch llvm-objdump output matches GNU objdump.

Reviewed By: simon_tatham

Differential Revision: https://reviews.llvm.org/D139407