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Auto merge of #112267 - lqd:win-1cgu, r=Kobzol
Build `rustc` with 1CGU on `x86_64-pc-windows-msvc` Distribute `x86_64-pc-windows-msvc` artifacts built with `rust.codegen-units=1`, like we already do on Linux. 1) effect on code size on `x86_64-pc-windows-msvc`: it's a 3.67% reduction on `rustc_driver.dll` - before, [`41d97c8a5dea2731b0e56fe97cd7cb79e21cff79`](https://ci-artifacts.rust-lang.org/rustc-builds/41d97c8a5dea2731b0e56fe97cd7cb79e21cff79/rustc-nightly-x86_64-pc-windows-msvc.tar.xz): 137605632 - after, [`704aaa875e4acccc973cbe4579e66afbac425691`](https://ci-artifacts.rust-lang.org/rustc-builds/704aaa875e4acccc973cbe4579e66afbac425691/rustc-nightly-x86_64-pc-windows-msvc.tar.xz): 132551680 2) time it took on CI - the [first `try` build](https://github.com/rust-lang-ci/rust/actions/runs/8155647651/job/22291592507) took: 1h 31m - the [second `try` build](https://github.com/rust-lang-ci/rust/actions/runs/8157043594/job/22295790552) took: 1h 32m 3) most recent perf results: - on a slightly noisy desktop [here](https://github.com/rust-lang/rust/pull/112267#issuecomment-1575758155) - ChrisDenton's results [here](https://github.com/rust-lang/rust/pull/112267#issuecomment-1583295338) Related tracking issue for build configuration: #103595
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@ -442,7 +442,7 @@ jobs:
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os: windows-2019-8core-32gb
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- name: dist-x86_64-msvc
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env:
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RUST_CONFIGURE_ARGS: "--build=x86_64-pc-windows-msvc --host=x86_64-pc-windows-msvc --target=x86_64-pc-windows-msvc --enable-full-tools --enable-profiler"
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RUST_CONFIGURE_ARGS: "--build=x86_64-pc-windows-msvc --host=x86_64-pc-windows-msvc --target=x86_64-pc-windows-msvc --enable-full-tools --enable-profiler --set rust.codegen-units=1"
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SCRIPT: python x.py build --set rust.debug=true opt-dist && PGO_HOST=x86_64-pc-windows-msvc ./build/x86_64-pc-windows-msvc/stage0-tools-bin/opt-dist windows-ci -- python x.py dist bootstrap --include-default-paths
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DIST_REQUIRE_ALL_TOOLS: 1
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os: windows-2019-8core-32gb
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@ -692,6 +692,7 @@ jobs:
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--target=x86_64-pc-windows-msvc
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--enable-full-tools
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--enable-profiler
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--set rust.codegen-units=1
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SCRIPT: python x.py build --set rust.debug=true opt-dist && PGO_HOST=x86_64-pc-windows-msvc ./build/x86_64-pc-windows-msvc/stage0-tools-bin/opt-dist windows-ci -- python x.py dist bootstrap --include-default-paths
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DIST_REQUIRE_ALL_TOOLS: 1
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<<: *job-windows-8c
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