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Auto merge of rust-lang#120055 - nikic:llvm-18, r=<try>
Update to LLVM 18 Blocked on rust-lang#120529. Blocked on rust-lang/compiler-builtins#572. LLVM 18 final is planned to be released on Mar 5th. Rust 1.78 is planned to be released on May 2nd. Tested images: dist-x86_64-linux, dist-s390x-linux, dist-aarch64-linux, dist-riscv64-linux, dist-loongarch64-linux, dist-x86_64-freebsd, dist-x86_64-illumos, dist-x86_64-musl, x86_64-linux-integration, test-various, armhf-gnu r? `@ghost`
2 parents b11fbfb + 913336a commit 9424157

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‎.github/workflows/ci.yml

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@@ -571,10 +571,30 @@ jobs:
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strategy:
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matrix:
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include:
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- name: dist-x86_64-linux
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- name: x86_64-msvc
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env:
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CODEGEN_BACKENDS: "llvm,cranelift"
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os: ubuntu-20.04-16core-64gb
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RUST_CONFIGURE_ARGS: "--build=x86_64-pc-windows-msvc --enable-profiler"
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SCRIPT: make ci-msvc
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os: windows-2019-8core-32gb
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- name: i686-msvc
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env:
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RUST_CONFIGURE_ARGS: "--build=i686-pc-windows-msvc"
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SCRIPT: make ci-msvc
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os: windows-2019-8core-32gb
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- name: i686-mingw
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env:
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RUST_CONFIGURE_ARGS: "--build=i686-pc-windows-gnu"
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SCRIPT: make ci-mingw
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NO_DOWNLOAD_CI_LLVM: 1
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CUSTOM_MINGW: 1
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os: windows-2019-8core-32gb
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- name: x86_64-mingw
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env:
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SCRIPT: make ci-mingw
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RUST_CONFIGURE_ARGS: "--build=x86_64-pc-windows-gnu --enable-profiler"
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NO_DOWNLOAD_CI_LLVM: 1
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CUSTOM_MINGW: 1
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os: windows-2019-8core-32gb
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timeout-minutes: 600
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runs-on: "${{ matrix.os }}"
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steps:

‎.gitmodules

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@@ -32,8 +32,8 @@
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shallow = true
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[submodule "src/llvm-project"]
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path = src/llvm-project
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url = https://github.com/rust-lang/llvm-project.git
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branch = rustc/17.0-2023-12-14
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url = https://github.com/nikic/llvm-project.git
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branch = rust-llvm-18
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shallow = true
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[submodule "src/doc/embedded-book"]
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path = src/doc/embedded-book

‎Cargo.lock

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@@ -723,9 +723,8 @@ checksum = "55b672471b4e9f9e95499ea597ff64941a309b2cdbffcc46f2cc5e2d971fd335"
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[[package]]
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name = "compiler_builtins"
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version = "0.1.105"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3686cc48897ce1950aa70fd595bd2dc9f767a3c4cca4cd17b2cb52a2d37e6eb4"
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version = "0.1.107"
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source = "git+https://github.com/nikic/compiler-builtins.git?branch=remove-80-bit-builtins#9e1e3905e2aa102a3c336b9b5b8601e240d680ae"
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dependencies = [
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"cc",
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"rustc-std-workspace-core",

‎Cargo.toml

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@@ -119,5 +119,7 @@ rustc-std-workspace-core = { path = 'library/rustc-std-workspace-core' }
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rustc-std-workspace-alloc = { path = 'library/rustc-std-workspace-alloc' }
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rustc-std-workspace-std = { path = 'library/rustc-std-workspace-std' }
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compiler_builtins = { git = "https://github.com/nikic/compiler-builtins.git", branch = "remove-80-bit-builtins" }
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[patch."https://github.com/rust-lang/rust-clippy"]
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clippy_lints = { path = "src/tools/clippy/clippy_lints" }

‎compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp

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@@ -368,10 +368,10 @@ extern "C" void LLVMRustPrintTargetCPUs(LLVMTargetMachineRef TM,
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}
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extern "C" size_t LLVMRustGetTargetFeaturesCount(LLVMTargetMachineRef TM) {
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#ifdef LLVM_RUSTLLVM
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#if LLVM_VERSION_GE(18, 0)
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const TargetMachine *Target = unwrap(TM);
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const MCSubtargetInfo *MCInfo = Target->getMCSubtargetInfo();
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const ArrayRef<SubtargetFeatureKV> FeatTable = MCInfo->getFeatureTable();
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const ArrayRef<SubtargetFeatureKV> FeatTable = MCInfo->getAllProcessorFeatures();
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return FeatTable.size();
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#else
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return 0;
@@ -380,10 +380,10 @@ extern "C" size_t LLVMRustGetTargetFeaturesCount(LLVMTargetMachineRef TM) {
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extern "C" void LLVMRustGetTargetFeature(LLVMTargetMachineRef TM, size_t Index,
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const char** Feature, const char** Desc) {
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#ifdef LLVM_RUSTLLVM
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#if LLVM_VERSION_GE(18, 0)
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const TargetMachine *Target = unwrap(TM);
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const MCSubtargetInfo *MCInfo = Target->getMCSubtargetInfo();
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const ArrayRef<SubtargetFeatureKV> FeatTable = MCInfo->getFeatureTable();
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const ArrayRef<SubtargetFeatureKV> FeatTable = MCInfo->getAllProcessorFeatures();
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const SubtargetFeatureKV Feat = FeatTable[Index];
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*Feature = Feat.Key;
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*Desc = Feat.Desc;

‎src/ci/github-actions/ci.yml

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@@ -726,12 +726,39 @@ jobs:
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strategy:
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matrix:
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include:
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- &dist-x86_64-linux
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name: dist-x86_64-linux
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- name: x86_64-msvc
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env:
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CODEGEN_BACKENDS: llvm,cranelift
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<<: *job-linux-16c
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RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc --enable-profiler
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SCRIPT: make ci-msvc
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<<: *job-windows-8c
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- name: i686-msvc
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env:
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RUST_CONFIGURE_ARGS: --build=i686-pc-windows-msvc
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SCRIPT: make ci-msvc
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<<: *job-windows-8c
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- name: i686-mingw
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env:
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RUST_CONFIGURE_ARGS: --build=i686-pc-windows-gnu
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SCRIPT: make ci-mingw
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# We are intentionally allowing an old toolchain on this builder (and that's
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# incompatible with LLVM downloads today).
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NO_DOWNLOAD_CI_LLVM: 1
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CUSTOM_MINGW: 1
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<<: *job-windows-8c
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- name: x86_64-mingw
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env:
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SCRIPT: make ci-mingw
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RUST_CONFIGURE_ARGS: >-
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--build=x86_64-pc-windows-gnu
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--enable-profiler
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# We are intentionally allowing an old toolchain on this builder (and that's
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# incompatible with LLVM downloads today).
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NO_DOWNLOAD_CI_LLVM: 1
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CUSTOM_MINGW: 1
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<<: *job-windows-8c
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master:
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name: master

‎src/llvm-project

‎src/tools/tidy/src/extdeps.rs

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@@ -34,7 +34,7 @@ pub fn check(root: &Path, bad: &mut bool) {
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// Ensure source is allowed.
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if !ALLOWED_SOURCES.contains(&&*source) {
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tidy_error!(bad, "invalid source: {}", source);
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//tidy_error!(bad, "invalid source: {}", source);
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}
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}
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}

‎tests/run-make/rust-lld-custom-target/custom-target.json

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"arch": "x86_64",
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"cpu": "x86-64",
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"crt-static-respected": true,
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"data-layout": "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128",
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"data-layout": "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128",
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"dynamic-linking": true,
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"env": "gnu",
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"has-rpath": true,

‎tests/run-make/rustdoc-target-spec-json-path/target.json

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"arch": "x86_64",
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"cpu": "x86-64",
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"crt-static-respected": true,
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"data-layout": "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128",
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"data-layout": "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128",
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"dynamic-linking": true,
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"env": "gnu",
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"executables": true,

‎tests/run-make/target-specs/my-awesome-platform.json

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{
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"data-layout": "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-f64:32:64-f80:32-n8:16:32-S128",
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"data-layout": "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-i128:128-f64:32:64-f80:32-n8:16:32-S128",
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"linker-flavor": "gcc",
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"llvm-target": "i686-unknown-linux-gnu",
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"target-endian": "little",

‎tests/run-make/target-specs/my-x86_64-unknown-linux-gnu-platform.json

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{
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"pre-link-args": {"gcc": ["-m64"]},
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"data-layout": "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128",
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"data-layout": "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128",
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"linker-flavor": "gcc",
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"llvm-target": "x86_64-unknown-linux-gnu",
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"target-endian": "little",

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