tree eca31879fe2b4cfbb9c2d8648c91fc5f6f0b3490
parent fbbae9ea2bd1c89e39deb62c8a2f549a33e51fae
author Aly ElAshram <71949028+AlyElashram@users.noreply.github.com> 1748576494 +0300
committer GitHub <noreply@github.com> 1748576494 -0400
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[LibC] Refactor arm64 to aarch64 for darwin. (#141509)

Fixes [#141505](https://github.com/llvm/llvm-project/issues/141505)

The main intention behind this PR is to update the
LibCTargetArchitecture for arm64 to use the implementation of aarch64
architecture and not arm32.

This is a historical issue , and is a blocker to issue #138407. 

The intended fix is to set the `LibCTargetArchitecture` to aarch64 when
it matches arm64 , this in turn would help us run darwin/aarch64
specific code on our MacOs pipeline in the git actions.

Methods used to search and find "darwin/arm" directories was  

1. "find . -type d -path "*/libc/*/darwin/arm" in a linux terminal to
check for arm specifically
2. "find . -type d -path "*/libc/*/darwin/*" to ensure there are no
directories that are named "*arm*" where star is a wildcard for any
character.