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| author | Cherry Mui <cherryyz@google.com> | 2021-05-25 18:05:02 -0400 |
|---|---|---|
| committer | Cherry Mui <cherryyz@google.com> | 2021-05-27 16:37:50 +0000 |
| commit | 06df0ee7fa8b6d7d095de77274f53fb81a43d622 (patch) | |
| tree | b71fbd02344b04e156726695074718742296f289 /src/cmd/compile/internal/arm64 | |
| parent | 1ec056244e1a058ea3a21f0abd1165d710398416 (diff) | |
| download | go-06df0ee7fa8b6d7d095de77274f53fb81a43d622.tar.gz go-06df0ee7fa8b6d7d095de77274f53fb81a43d622.zip | |
[dev.typeparams] cmd/compile: add arg/result register load/spill code on ARM64
Add code that loads results into registers (used in defer return
code path) and spills argument registers (used for partially lived
in-register args).
Move some code from the amd64 package to a common place.
Change-Id: I8d59b68693048fdba86e10769c4ac58de5fcfb64
Reviewed-on: https://go-review.googlesource.com/c/go/+/322851
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Diffstat (limited to 'src/cmd/compile/internal/arm64')
| -rw-r--r-- | src/cmd/compile/internal/arm64/galign.go | 2 | ||||
| -rw-r--r-- | src/cmd/compile/internal/arm64/ssa.go | 20 |
2 files changed, 22 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/arm64/galign.go b/src/cmd/compile/internal/arm64/galign.go index d3db37e16f..2a61b9dd99 100644 --- a/src/cmd/compile/internal/arm64/galign.go +++ b/src/cmd/compile/internal/arm64/galign.go @@ -23,4 +23,6 @@ func Init(arch *ssagen.ArchInfo) { arch.SSAMarkMoves = func(s *ssagen.State, b *ssa.Block) {} arch.SSAGenValue = ssaGenValue arch.SSAGenBlock = ssaGenBlock + arch.LoadRegResult = loadRegResult + arch.SpillArgReg = spillArgReg } diff --git a/src/cmd/compile/internal/arm64/ssa.go b/src/cmd/compile/internal/arm64/ssa.go index d82788218d..74308a18f6 100644 --- a/src/cmd/compile/internal/arm64/ssa.go +++ b/src/cmd/compile/internal/arm64/ssa.go @@ -10,6 +10,7 @@ import ( "cmd/compile/internal/base" "cmd/compile/internal/ir" "cmd/compile/internal/logopt" + "cmd/compile/internal/objw" "cmd/compile/internal/ssa" "cmd/compile/internal/ssagen" "cmd/compile/internal/types" @@ -1278,3 +1279,22 @@ func ssaGenBlock(s *ssagen.State, b, next *ssa.Block) { b.Fatalf("branch not implemented: %s", b.LongString()) } } + +func loadRegResult(s *ssagen.State, f *ssa.Func, t *types.Type, reg int16, n *ir.Name, off int64) *obj.Prog { + p := s.Prog(loadByType(t)) + p.From.Type = obj.TYPE_MEM + p.From.Name = obj.NAME_AUTO + p.From.Sym = n.Linksym() + p.From.Offset = n.FrameOffset() + off + p.To.Type = obj.TYPE_REG + p.To.Reg = reg + return p +} + +func spillArgReg(pp *objw.Progs, p *obj.Prog, f *ssa.Func, t *types.Type, reg int16, n *ir.Name, off int64) *obj.Prog { + p = pp.Append(p, storeByType(t), obj.TYPE_REG, reg, 0, obj.TYPE_MEM, 0, n.FrameOffset()+off) + p.To.Name = obj.NAME_PARAM + p.To.Sym = n.Linksym() + p.Pos = p.Pos.WithNotStmt() + return p +} |