[cmake] Add support for building the swift stdlib with LTO. #36570
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This is controlled with the option SWIFT_STDLIB_ENABLE_LTO=thin|full.
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@swift-ci test |
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NOTE: This just handles the cmake part. There is a bunch of issues still with how we are doing this and in fact this will not work without some patches I have out of tree. But the right flags get to the right places with this one. |
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Build failed |
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@swift-ci test linux platform |
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This is controlled with the option SWIFT_STDLIB_ENABLE_LTO=thin|full.