[PATCH] D101247: [Debug-Info] strict dwarf for DW_OP_stack_value

Jeremy Morse via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon May 17 10:12:17 PDT 2021


jmorse added subscribers: StephenTozer, jmorse.
jmorse added a comment.

Hi @shchenz, is it feasible to use DIExpression::isImplicit at a higher level to filter out these kinds of expressions? I believe it's possible to parse a DIExpression before it's lowered to a DWARF expression, and there are places where we rely on the isImplicit method for correctness already. Also paging @StephenTozer who's touched this area recently.

I believe this would work for DW_AT_location attributes of DW_TAG_variable and DW_TAG_formal_parameter's, I'm less certain about other parts of DWARF that use expressions.


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https://reviews.llvm.org/D101247



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