tree 2d3b666ab2cc5f3f201ea54b14e664f07ddbb901
parent d8f6e6430b26bf199f4a52f0624becb7c29f3c19
author Roland Levillain <rpl@google.com> 1485546044 +0000
committer Roland Levillain <rpl@google.com> 1485781971 +0000

Handle cycles with double stack slots in ARM64 parallel moves.

When acquiring a scratch register to emit a move between two
double stack slots, ask for a FP register first, to avoid
depleting the core scratch register pool, which is used in
vixl::aarch64::MacroAssembler::LoadStoreMacro when the
offset does not fit in the immediate field of the load
instruction.

Test: make test-art-target (on ARM64)
Bug: 34760542
Change-Id: Ie9b37d007ed6ec5886931a35dcb22a9aff73bbbe