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go/types: extend StdSizes to support amd64p32 #11716

dvyukov opened this issue Jul 14, 2015 · 1 comment

go/types: extend StdSizes to support amd64p32 #11716

dvyukov opened this issue Jul 14, 2015 · 1 comment


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dvyukov commented Jul 14, 2015

Currently StdSizes allows to specify only MaxAlignment and WordSize, but this cannot handle one of the standard architectures -- amd64p32. It should allow to specify WordSize and PointerSize independently.

@ianlancetaylor ianlancetaylor added this to the Unplanned milestone Jul 15, 2015
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StdSizes also doesn't exactly follow the gc-compiler's alignment and size computation in general. It's not meant to be a 1:1 drop-in.

What's more, the go/types API and thus StdSizes is frozen. It is easy enough to either a) write an external implementation of Sizes and provide it to go/types, or perhaps add a GCSizes type that matches the gc-behavior exactly. Either way, those approaches would solve this problem in a different way.

I'm going to close this as unfortunate.

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