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make <= 1-word types immediate #9651

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thestinger opened this issue Oct 1, 2013 · 4 comments · Fixed by #9759
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make <= 1-word types immediate #9651

thestinger opened this issue Oct 1, 2013 · 4 comments · Fixed by #9759
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I-slow Issue: Problems and improvements with respect to performance of generated code.

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@thestinger
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I fixed newtype immediates in #9643 while working on making tuples immediate but there's more to fix than just flipping it on for other types.
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#9656 does this for tuples

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#9677 does this for enums, except for C-like ones

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#9699 does unit structs and C-like enums

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Small ty_struct is the only thing left to do, at least before increasing the threshold to a value queried from LLVM (slices, traits, closures, etc. could be immediate on some targets).

It hits a raw uncaught exception at the moment.

@thestinger thestinger mentioned this issue Oct 8, 2013
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bors added a commit that referenced this issue Oct 8, 2013
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auto merge of #9759 : thestinger/rust/immediate, r=alexcrichton
5c8c8bc 
Closes #9651
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I-slow Issue: Problems and improvements with respect to performance of generated code.
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make small ty_struct immediate
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