Add some groundwork for cross-language LTO.#50000

Merged

bors merged 12 commits intorust-lang:masterfrom michaelwoerister:cross-lang-lto

May 7, 2018

+160-17

Commits on May 3, 2018

Declare embedded LLVM bitcode section readonly.
michaelwoerister
committed
Add -Z cross-lang-lto flag in order to support linker-based LTO.
michaelwoerister
committed
Add tests for -Z cross-lang-lto.
michaelwoerister
committed
Add LLVM bin directory to PATH for running run-make tests.
michaelwoerister
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Use correct section name for embedded LLVM bitcode on OSX.
michaelwoerister
committed
Support test header directives in run-make mode too.
michaelwoerister
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Ignore cross-lang-lto test for LLVM versions without ThinLTO.
michaelwoerister
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Make run-make host_test!().
michaelwoerister
committed
Don't run LTO passes in rustc when cross-lang LTO is enabled.
michaelwoerister
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run-make/cross-lang-lto: Make output artifact names consistent across platforms.
michaelwoerister
committed

Commits on May 4, 2018

bootstrap: Fix LLVM bin path setup for Windows.
michaelwoerister
committed

Commits on May 7, 2018

Fix Mac OS section name for LLVM bitcode.
michaelwoerister
committed