Cleanup dead blocks after noreturn folding #17258
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The utility function will be used in a follow-up commit by a different pass. rdar://41139395
Follow-up passes might not handle blocks with undef instruction operands well. rdar://41139395
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@swift-ci Please test and merge |
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@atrick Can you review this for swift-4.2-branch? |
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Look good for 4.2. I don't see the 4.2 PR yet. |
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Follow-up passes might not handle blocks with undef instruction operands
well.
rdar://41139395