Ping.
https://gcc.gnu.org/ml/gcc-patches/2015-04/msg01130.html
Thanks,
Kyrill
On 21/04/15 10:11, Kyrill Tkachov wrote:
Hi all,
This is the first of a series to clean up and simplify the arm rtx costs
function.
This patch initialises the cost to COSTS_N_INSNS (1) at the top and increments
it when appropriate
in the rest of the function. This makes it more similar to the aarch64 rtx
costs function and saves
us the trouble of having to remember to initialise the cost to COSTS_N_INSNS
(1) in each case of the
switch statement.
Bootstrapped and tested arm-none-linux-gnueabihf.
Compiled some large programs with no codegen difference, except some DIV
synthesis algorithms were changed,
presumably due to the cost of SDIV/UDIV, which is now being correctly
calculated (before it was missing the
baseline COSTS_N_INSNS (1)).
Ok for trunk?
Thanks,
Kyrill
2015-04-21 Kyrylo Tkachov <kyrylo.tkac...@arm.com>
* config/arm/arm.c (arm_new_rtx_costs): Initialise cost to
COSTS_N_INSNS (1) and increment it appropriately throughout the
function.
