Displaying 1 result from an estimated 1 matches for "dw_op_drop".
2020 Feb 25
2
[RFC] Allowing debug intrinsics to reference multiple SSA Values
>As the person who has advocated for DW_OP_LLVM_arg(N) before, my main motivation was to resolve the ambiguity of constant DIExpressions: As a worst-case example:
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>dbg.value(%undef, !DILocalVariable(x), DIExpression(DW_OP_constu, 42))
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>Is this undefined, or constant 42?
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>But if we make dbg.value fully variadic with all parameters pushed to the stack ahead of time, we can