[PR 48333] avoid -fcompare-debug errors from builtins in MEM attrs

[Alexandre Oliva]

Ping?  This fixes a case in which -g might change the executable code,
exposed with bootstrap-debug-lean.

On Apr  2, 2011, Alexandre Oliva <aoliva@redhat.com> wrote:

> 	PR debug/48333
> 	* calls.c (emit_call_1): Prefer the __builtin declaration of
> 	builtin functions.

http://gcc.gnu.org/ml/gcc-patches/2011-04/msg00114.html

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Alexandre Oliva, freedom fighter    http://FSFLA.org/~lxoliva/
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