[pull] swift/main from apple:swift/main#1009

Merged

pull[bot] merged 9 commits intoswiftwasm:swift/mainfrom

swiftlang:swift/main

Dec 22, 2020

Commits on Dec 21, 2020

[AnnotationRemarks] Also generate annotation remarks when using -O0.
fhahn
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[InstCombine] Precommit tests for !annotation metadata handling.
fhahn
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[SimplifyCFG] Precommit test for preserving !annotation.
fhahn
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[InstCombine] Preserve !annotation for newly created instructions.
fhahn
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[IRBuilder] Generalize debug loc handling for arbitrary metadata.
fhahn
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[SimplifyCFG] Preserve !annotation in FoldBranchToCommonDest.
fhahn
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[InstCombine] Preserve !annotation on newly created instructions.
fhahn
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Merge commit '0557af29dc3e' from apple/stable/20200714 into swift/release/5.4
git apple-llvm automerger
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Merge commit '7202186cf6ad' from swift/release/5.4 into swift/main
git apple-llvm automerger
committed