Work around buggy sequence points #11

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opened 2023-08-21 17:26:03 +00:00 by fyrchik · 0 comments

fyrchik commented

2023-08-21 17:26:03 +00:00

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It seems there is a bug in the compiler currently. After optimization and offset recalculation, some sequence points do not correspond to any valid offset.

One of the ways to partially solve a problem is to not only remember instruction offset, but also instruction length. This way some +-1 errors in offset should be solved (and because of the nature of compiler optimizations we know that sequence points preserve their order, so this should work).

It seems there is a bug in the compiler currently. After optimization and offset recalculation, some sequence points do not correspond to any valid offset. One of the ways to partially solve a problem is to not only remember instruction offset, but also instruction length. This way some +-1 errors in offset should be solved (and because of the nature of compiler optimizations we know that sequence points preserve their order, so this should work).