[PATCH] Fix RTL DSE compile time hog (PR rtl-optimization/48141)

[Mike Stump]

On Mar 15, 2011, at 4:05 PM, Jakub Jelinek wrote:
> --- gcc/testsuite/gcc.dg/pr48141.c.jj	2011-03-15 21:48:46.000000000 +0100
> +++ gcc/testsuite/gcc.dg/pr48141.c	2011-03-15 21:48:27.000000000 +0100
> @@ -0,0 +1,17 @@
> +/* PR rtl-optimization/48141 */
> +/* { dg-do compile } */
> +/* { dg-options "-O" } */
> +
> +#define A i = 0;
> +#define B A A A A A A A A A A
> +#define C B B B B B B B B B B
> +#define D C C C C C C C C C C
> +#define E D D D D D D D D D D

Long term, I'd welcome a systematic way to test all things like this, but without the expense.