[PATCH] Additional builtin memset optimization

Richard Henderson rth@redhat.com
Mon Apr 22 15:38:00 GMT 2002


On Sun, Apr 21, 2002 at 04:39:25PM -0600, Roger Sayle wrote:
> 	* builtins.c (builtin_memset_gen_str): New function.
> 	(expand_builtin_memset): Optimize the case of constant
> 	length, but unknown value.

Ok.

> 	* gcc.c-torture/execute/string-opt-17.c: New test case.

I'd suggest a test for correctness instead, since you're
allowing memset to pop through for len >= 2.


r~



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