https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110781
Bug ID: 110781
Summary: bpf: make use of the V4 long-range jump instruction
(jal/gotol)
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: jemarch at gcc dot gnu.org
Target Milestone: ---
The BPF V4 ISA introduces a new unconditional jump instruction (jal/gotol) that
has a much wide target range compared to the previous jal/goto instruction:
from PC-relative 16-bit to PC-relative 32-bit.
We shall make GCC to generate this instruction when it needs to emit jumps that
would be too long for the regular ja/goto instruction. But only if -mcpu=v4 is
used.
