On 11/12/23 07:08, Lehua Ding wrote:
gcc/ChangeLog:
* hard-reg-set.h (struct HARD_REG_SET): New shift operator.
* ira-build.cc (ira_create_object): Adjust.
(find_object): New.
(find_object_anyway): New.
(ira_create_allocno): Adjust.
(get_range):
This patch supports tracking subreg liveness. It first extends
ira_object_t objects[2] to std::vector objects,
which can hold more than one object, and is used to collect all
access via subreg in program and the partial_in and partial_out
of the basic block live in/out.
Then there is a
