[llvm-commits] [llvm] r78083 - in /llvm/trunk/test/CodeGen/ARM: fnmscs.ll fnmuls.ll

[Chris Lattner]

On Aug 4, 2009, at 11:44 AM, Chris Lattner wrote:

>
> On Aug 4, 2009, at 11:26 AM, David Goodwin wrote:
>
>> Where is the documentation for FileCheck?
>
> I still need to write the docs unfortunately.
>
> Basically it does a grep for a prefix (defaulting to "CHECK:") and
> verifies that the strings occur, and in order.  Take a look at  
> CodeGen/
> arm/mul_const.ll for a simple example.  It also defaults to
> canonicalizing horizontal whitespace, so you don't have to do an exact
> match on tabs and spaces.
>
> One annoying current limitation is that it doesn't support regex's  
> yet.

Oh, one really nice thing about it is that it lets you merge multiple  
tiny .ll files into larger ones, which run faster. For example, see  
CodeGen/X86/sse41.ll

-Chris