[cfe-dev] alternate testing

[reed kotler]

In some clang tests, they seem to use something other than filecheck

for example in Sema/address_spaces.c

// RUN: %clang_cc1 %s -fsyntax-only -verify

#define _AS1 __attribute__((address_space(1)))
#define _AS2 __attribute__((address_space(2)))
#define _AS3 __attribute__((address_space(3)))

void bar(_AS2 int a); // expected-error {{parameter may not be qualified 
with an address space}}

void foo(_AS3 float *a,
          _AS1 float b) // expected-error {{parameter may not be 
qualified with an address space}}


Where is this documented?

Tia.

Reed