On Tue, Jan 24, 2012 at 10:26 PM, Eric Botcazou wrote:
> Starting with the 4.5.x series, we have pathological cases (Ada code generated
> by a code generator from a model) where FWPROP takes 80% of the compilation
> time at -O1 (for essentially no benefits). There are very few basic blocks
> (typ
On Tue, Jan 24, 2012 at 10:26:28PM +0100, Eric Botcazou wrote:
> +static bool
> +is_too_expensive (const char *pass)
> +{
> + int ratio = DF_USES_TABLE_SIZE () / (n_basic_blocks - NUM_FIXED_BLOCKS);
> +
> + /* Trying to propagate into uses in functions with gigantic basic blocks
> + will take
