diff options
Diffstat (limited to 'src/cmd/compile/internal/ssa/gen/ARM.rules')
| -rw-r--r-- | src/cmd/compile/internal/ssa/gen/ARM.rules | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/src/cmd/compile/internal/ssa/gen/ARM.rules b/src/cmd/compile/internal/ssa/gen/ARM.rules index 17d151d824..54d7395d0c 100644 --- a/src/cmd/compile/internal/ssa/gen/ARM.rules +++ b/src/cmd/compile/internal/ssa/gen/ARM.rules @@ -302,13 +302,12 @@ // Large zeroing uses a loop (Zero [s] ptr mem) - && SizeAndAlign(s).Size()%4 == 0 && (SizeAndAlign(s).Size() > 512 || config.noDuffDevice) - && SizeAndAlign(s).Align()%4 == 0 -> - (LoweredZero ptr (ADDconst <ptr.Type> ptr [SizeAndAlign(s).Size()]) (MOVWconst [0]) mem) - -// Unaligned zeroing uses a loop -(Zero [s] ptr mem) && SizeAndAlign(s).Size() > 4 && SizeAndAlign(s).Align()%4 != 0 -> - (LoweredZeroU ptr (ADDconst <ptr.Type> ptr [SizeAndAlign(s).Size()]) (MOVWconst [0]) mem) + && (SizeAndAlign(s).Size() > 512 || config.noDuffDevice) || SizeAndAlign(s).Align()%4 != 0 -> + (LoweredZero [SizeAndAlign(s).Align()] + ptr + (ADDconst <ptr.Type> ptr [SizeAndAlign(s).Size()-moveSize(SizeAndAlign(s).Align(), config)]) + (MOVWconst [0]) + mem) // moves (Move [s] _ _ mem) && SizeAndAlign(s).Size() == 0 -> mem @@ -343,13 +342,12 @@ // Large move uses a loop (Move [s] dst src mem) - && SizeAndAlign(s).Size()%4 == 0 && (SizeAndAlign(s).Size() > 512 || config.noDuffDevice) - && SizeAndAlign(s).Align()%4 == 0 -> - (LoweredMove dst src (ADDconst <src.Type> src [SizeAndAlign(s).Size()]) mem) - -// Unaligned move uses a loop -(Move [s] dst src mem) && SizeAndAlign(s).Size() > 4 && SizeAndAlign(s).Align()%4 != 0 -> - (LoweredMoveU dst src (ADDconst <src.Type> src [SizeAndAlign(s).Size()]) mem) + && (SizeAndAlign(s).Size() > 512 || config.noDuffDevice) || SizeAndAlign(s).Align()%4 != 0 -> + (LoweredMove [SizeAndAlign(s).Align()] + dst + src + (ADDconst <src.Type> src [SizeAndAlign(s).Size()-moveSize(SizeAndAlign(s).Align(), config)]) + mem) // calls (StaticCall [argwid] {target} mem) -> (CALLstatic [argwid] {target} mem) |