From 68bd9b9b165ffca1a49b80bb437ce9f87b738264 Mon Sep 17 00:00:00 2001 From: Alexandre Rames Date: Fri, 15 Jul 2016 17:41:13 +0100 Subject: ARM64: Improve code generated to spill/restore for slow paths. Aligning the accesses allows generating better code. Before: add x16, sp, #0x44 (68) stp x0, x1, [x16, #-16] After: stp x0, x1, [sp, #56] Change-Id: I3e20ad3fa59d00aee4b4d14ea9d59c7cd546509e --- compiler/optimizing/code_generator.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'compiler/optimizing/code_generator.h') diff --git a/compiler/optimizing/code_generator.h b/compiler/optimizing/code_generator.h index b8540baca2..47e6625d07 100644 --- a/compiler/optimizing/code_generator.h +++ b/compiler/optimizing/code_generator.h @@ -211,6 +211,8 @@ class CodeGenerator : public DeletableArenaObject { size_t maximum_number_of_live_fpu_registers, size_t number_of_out_slots, const ArenaVector& block_order); + // Backends can override this as necessary. For most, no special alignment is required. + virtual uint32_t GetPreferredSlotsAlignment() const { return 1; } uint32_t GetFrameSize() const { return frame_size_; } void SetFrameSize(uint32_t size) { frame_size_ = size; } -- cgit v1.2.3-59-g8ed1b