rustc: Further tweak linkage in ThinLTO #46549
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r? @aturon (rust_highfive has picked a reviewer for you, use r? to override) |
kennytm
reviewed
Dec 7, 2017
| // except according to those terms. | ||
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| // compile-flags: -C codegen-units=8 -Z thinlto | ||
| // ignore-windows |
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Needs // min-llvm-version 4.0.
[00:48:34] ---- [run-pass] run-pass/thinlto/weak-works.rs stdout ----
[00:48:34]
[00:48:34] error: compilation failed!
[00:48:34] status: exit code: 101
[00:48:34] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/run-pass/thinlto/weak-works.rs" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-pass" "--target=x86_64-unknown-linux-gnu" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-pass/thinlto/weak-works.stage2-x86_64-unknown-linux-gnu" "-Crpath" "-O" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-C" "codegen-units=8" "-Z" "thinlto" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-pass/thinlto/weak-works.stage2-x86_64-unknown-linux-gnu.aux"
[00:48:34] stdout:
[00:48:34] ------------------------------------------
[00:48:34]
[00:48:34] ------------------------------------------
[00:48:34] stderr:
[00:48:34] ------------------------------------------
[00:48:34] error: this compiler's LLVM does not support ThinLTO
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Thank you, Alex! r=me with the test fixed. |
In rust-lang#46382 the logic around linkage preservation with ThinLTO ws tweaked but the loop that registered all otherwise exported GUID values as "don't internalize me please" was erroneously too conservative and only asking "external" linkage items to not be internalized. Instead we actually want the inversion of that condition, everything *without* "local" linkage to be internalized. This commit updates the condition there, adds a test, and... Closes rust-lang#46543
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@bors: r=michaelwoerister |
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📌 Commit 17fb43b has been approved by |
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Dec 8, 2017
rustc: Further tweak linkage in ThinLTO In #46382 the logic around linkage preservation with ThinLTO ws tweaked but the loop that registered all otherwise exported GUID values as "don't internalize me please" was erroneously too conservative and only asking "external" linkage items to not be internalized. Instead we actually want the inversion of that condition, everything *without* "local" linkage to be internalized. This commit updates the condition there, adds a test, and... Closes #46543
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☀️ Test successful - status-appveyor, status-travis |
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In #46382 the logic around linkage preservation with ThinLTO ws tweaked but the
loop that registered all otherwise exported GUID values as "don't internalize
me please" was erroneously too conservative and only asking "external" linkage
items to not be internalized. Instead we actually want the inversion of that
condition, everything without "local" linkage to be internalized.
This commit updates the condition there, adds a test, and...
Closes #46543