[lldb] Emit a warning when UB is detected in an expression IR #10350
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In rare cases missing type information results in IRGen lowering values into SILUndef. This may be for a variable that isn't even used in the expression, so we just warn about it. This is reported as an out-of-band warning, because LLDB suppresses warnings on successful expressions. rdar://147879706
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I manually tested this on the original reproducer, but I don't know how to reliably test this from the test suite. |
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@swift-ci test |
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In rare cases missing type information results in IRGen lowering values into SILUndef. This may be for a variable that isn't even used in the expression, so we just warn about it. This is reported as an out-of-band warning, because LLDB suppresses warnings on successful expressions.
rdar://147879706