[dataflow]: patch committed to improve -O0 performance.
Wed Mar 28 16:48:00 GMT 2007
I'm wondering, many passes that use DF_LIVE could actually use
DF_LR. If they sum up substantially, DF_UR/DF_LIVE could become
> +/* Just run the sub passes which do all of the work. */
> +static unsigned int
> +rest_of_handle_stack_regs (void)
> + return 0;
Just put NULL in the tree_pass structure.
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