Segher Boessenkool writes:
> gcc/
> * combine.c (is_parallel_of_n_reg_sets): New function.
> (can_split_parallel_of_n_reg_sets): New function.
> (try_combine): If I2 is a PARALLEL of two SETs, split it into
> two insns if possible.
This breaks bootstrap on m68k.
../../gc
On 11/27/14 18:44, Segher Boessenkool wrote:
If I2 is a PARALLEL of two SETs, split it into two instructions, I1
and I2. If there already was an I1, rename it to I0. If there
already was an I0, don't do anything.
This surprisingly simple patch is enough to let combine handle such
PARALLELs pro
If I2 is a PARALLEL of two SETs, split it into two instructions, I1
and I2. If there already was an I1, rename it to I0. If there
already was an I0, don't do anything.
This surprisingly simple patch is enough to let combine handle such
PARALLELs properly.
v2: Add some functions to make the chec
