[cfe-dev] Patch for __builtin_bzero

[Nico Weber]

Hi,

with the attached patch, vim7 can be built with `make CC=ccc`. Linking  
takes about 3 minutes (with a debug build of llvm), and vim's build  
process runs the linker several times (at least 3 times), so total  
linking time is about 3 minutes.

The patch adds support for __builtin_bzero. OS X' headers use that in  
FD_SET. __builtin_bzero() simply calls the library's bzero() in this  
patch. Would it be better to use the llvm.memset intrinsic instead? I  
believe Windows does not have bzero in its c library.

Nico

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