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[Bazel] Add support for targeting macOS arm64

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In attempting to build JAX on Apple Silicon, we discovered an issue with
the bazel configuration in llvm-project-overlay. This patch fixes the
logic, at least when building JAX. More context is included on the
following GitHub issue: https://github.com/google/jax/issues/5501

Differential Revision: https://reviews.llvm.org/D109839
This commit is contained in:
Dan F-M 2021-09-21 12:19:07 -07:00 committed by Geoffrey Martin-Noble
parent f2fa6ad047
commit 33e1713a00
1 changed files with 2 additions and 1 deletions
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utils/bazel/llvm-project-overlay/llvm/config.bzl
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@ -76,7 +76,8 @@ os_defines = select({
# TODO: We should split out host vs. target here.
llvm_config_defines = os_defines + select({
"@bazel_tools//src/conditions:windows": native_arch_defines("X86", "x86_64-pc-win32"),
"@bazel_tools//src/conditions:darwin": native_arch_defines("X86", "x86_64-unknown-darwin"),
"@bazel_tools//src/conditions:darwin_arm64": native_arch_defines("AArch64", "arm64-apple-darwin"),
"@bazel_tools//src/conditions:darwin_x86_64": native_arch_defines("X86", "x86_64-unknown-darwin"),
"@bazel_tools//src/conditions:linux_aarch64": native_arch_defines("AArch64", "aarch64-unknown-linux-gnu"),
"//conditions:default": native_arch_defines("X86", "x86_64-unknown-linux-gnu"),
}) + [