[LLVMdev] Regular Expression lib support

[Chris Lattner]

On Aug 28, 2009, at 1:53 AM, Daniel Dunbar wrote:

> Nice!
>
> This looks good to me but probably Chris or someone else should sign  
> off on it.

This seems ok to me, please commit.  One minor comment:

+++ b/lib/Support/Regex.cpp

+  // Allocate pmatch with at least one element.
+  pmatch = new llvm_regmatch_t[nmatch > 0 ? nmatch : 1];
+  pmatch[0].rm_so = 0;
+  pmatch[0].rm_eo = String.size();

Can this be a smallvector to avoid a heap allocation on every match?

-Chris