diff options
Diffstat (limited to 'src/cmd/compile/internal/ssa/gen/PPC64.rules')
| -rw-r--r-- | src/cmd/compile/internal/ssa/gen/PPC64.rules | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/ssa/gen/PPC64.rules b/src/cmd/compile/internal/ssa/gen/PPC64.rules index 6f133d4ca8..8fe6da2eb2 100644 --- a/src/cmd/compile/internal/ssa/gen/PPC64.rules +++ b/src/cmd/compile/internal/ssa/gen/PPC64.rules @@ -205,6 +205,58 @@ (MOVDstorezero [8] destptr (MOVDstorezero [0] destptr mem)))) +// Large zeroing uses a loop +(Zero [s] ptr mem) + && (SizeAndAlign(s).Size() > 512 || config.noDuffDevice) || SizeAndAlign(s).Align()%8 != 0 -> + (LoweredZero [SizeAndAlign(s).Align()] + ptr + (ADDconst <ptr.Type> ptr [SizeAndAlign(s).Size()-moveSize(SizeAndAlign(s).Align(), config)]) + mem) + +// moves +(Move [s] _ _ mem) && SizeAndAlign(s).Size() == 0 -> mem +(Move [s] dst src mem) && SizeAndAlign(s).Size() == 1 -> (MOVBstore dst (MOVBZload src mem) mem) +(Move [s] dst src mem) && SizeAndAlign(s).Size() == 2 && SizeAndAlign(s).Align()%2 == 0 -> + (MOVHstore dst (MOVHZload src mem) mem) +(Move [s] dst src mem) && SizeAndAlign(s).Size() == 2 -> + (MOVBstore [1] dst (MOVBZload [1] src mem) + (MOVBstore dst (MOVBZload src mem) mem)) +(Move [s] dst src mem) && SizeAndAlign(s).Size() == 4 && SizeAndAlign(s).Align()%4 == 0 -> + (MOVWstore dst (MOVWload src mem) mem) +(Move [s] dst src mem) && SizeAndAlign(s).Size() == 4 && SizeAndAlign(s).Align()%2 == 0 -> + (MOVHstore [2] dst (MOVHZload [2] src mem) + (MOVHstore dst (MOVHZload src mem) mem)) +(Move [s] dst src mem) && SizeAndAlign(s).Size() == 4 -> + (MOVBstore [3] dst (MOVBZload [3] src mem) + (MOVBstore [2] dst (MOVBZload [2] src mem) + (MOVBstore [1] dst (MOVBZload [1] src mem) + (MOVBstore dst (MOVBZload src mem) mem)))) + +(Move [s] dst src mem) && SizeAndAlign(s).Size() == 8 && SizeAndAlign(s).Align()%8 == 0 -> + (MOVDstore dst (MOVDload src mem) mem) +(Move [s] dst src mem) && SizeAndAlign(s).Size() == 8 && SizeAndAlign(s).Align()%4 == 0 -> + (MOVWstore [4] dst (MOVWZload [4] src mem) + (MOVWstore dst (MOVWZload src mem) mem)) +(Move [s] dst src mem) && SizeAndAlign(s).Size() == 8 && SizeAndAlign(s).Align()%2 == 0-> + (MOVHstore [6] dst (MOVHZload [6] src mem) + (MOVHstore [4] dst (MOVHZload [4] src mem) + (MOVHstore [2] dst (MOVHZload [2] src mem) + (MOVHstore dst (MOVHZload src mem) mem)))) + +(Move [s] dst src mem) && SizeAndAlign(s).Size() == 3 -> + (MOVBstore [2] dst (MOVBZload [2] src mem) + (MOVBstore [1] dst (MOVBZload [1] src mem) + (MOVBstore dst (MOVBZload src mem) mem))) + +// Large move uses a loop +(Move [s] dst src mem) + && (SizeAndAlign(s).Size() > 512 || config.noDuffDevice) || SizeAndAlign(s).Align()%8 != 0 -> + (LoweredMove [SizeAndAlign(s).Align()] + dst + src + (ADDconst <src.Type> src [SizeAndAlign(s).Size()-moveSize(SizeAndAlign(s).Align(), config)]) + mem) + // Calls // Lowering calls (StaticCall [argwid] {target} mem) -> (CALLstatic [argwid] {target} mem) |