[LLVMdev] frontend support for cross-compilation?

[John Regehr]

Thanks Chris.  I'll follow any ongoing discussion about this.  Unless I'm 
missing something, customizable widths for integer types is necessary to 
achieve source-level compatibility with existing cross-compilers.

It would be great to see the fronend being parameterized by integer widths 
at runtime.  There would be no noticable loss of efficiency and this would 
avoid the obnoxious and error-prone situation of keeping many C frontends 
sitting around.

FWIW CIL just lately became parameterizable at runtime with 
machine-specific information and it's really handy.

John


> There was a recent discussion about this specific issue.  We need to
> eliminate the implicit sign/zero extend to 32 bit logic from the code
> generator and have the front-ends insert them.
>
> -Chris
>
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