[6.0] Pass -lld-allow-duplicate-weak for coverage on Windows
#1657
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Profiling currently relies on the ability to emit duplicate weak symbols across translation units and having the linker coalesce them. Unfortunately `link.exe` does not support this, so require `lld-link` and pass `-lld-allow-duplicate-weak` when `-profile-generate` is passed. We ought to be able to remove this once coverage is changed to not rely on duplicate weak symbols, rdar://131295678 is tracking that. rdar://129337999
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@swift-ci please test |
bnbarham
approved these changes
Jul 11, 2024
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6.0 cherry-pick of #1655
lld-linkand passing-lld-allow-duplicate-weak