Stowage/go
2
0
Fork 0
mirror of https://github.com/golang/go.git synced 2025-12-08 06:10:04 +00:00
Code Issues Projects Releases Packages Wiki Activity

cmd/compile: intrinsify runtime/internal/atomic.{And,Or} on MIPS

Browse source 
This one is trivial, as there are already 32-bit AND and OR ops used to
implement the more complex 8-bit versions.

Change-Id: Ic48a53ea291d0067ebeab8e96c82e054daf20ae7
Reviewed-on: https://go-review.googlesource.com/c/go/+/263149
Run-TryBot: Michael Pratt <mpratt@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Michael Pratt <mpratt@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
This commit is contained in:
Michael Pratt 2020-10-16 16:49:56 -04:00
parent e313fd7448
commit e5ad73508e
3 changed files with 11 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

4
src/cmd/compile/internal/gc/ssa.go
View file

@ -3546,7 +3546,7 @@ func init() {
s.vars[&memVar] = s.newValue3(ssa.OpAtomicAnd32, types.TypeMem, args[0], args[1], s.mem())
return nil
},
sys.AMD64, sys.ARM64, sys.PPC64, sys.S390X) // TODO: same arches as And8.
sys.AMD64, sys.ARM64, sys.MIPS, sys.PPC64, sys.S390X)
addF("runtime/internal/atomic", "Or8",
func(s *state, n *Node, args []*ssa.Value) *ssa.Value {
s.vars[&memVar] = s.newValue3(ssa.OpAtomicOr8, types.TypeMem, args[0], args[1], s.mem())
@ -3558,7 +3558,7 @@ func init() {
s.vars[&memVar] = s.newValue3(ssa.OpAtomicOr32, types.TypeMem, args[0], args[1], s.mem())
return nil
},
sys.AMD64, sys.ARM64, sys.PPC64, sys.S390X) // TODO: same arches as And8.
sys.AMD64, sys.ARM64, sys.MIPS, sys.PPC64, sys.S390X)
alias("runtime/internal/atomic", "Loadint64", "runtime/internal/atomic", "Load64", all...)
alias("runtime/internal/atomic", "Xaddint64", "runtime/internal/atomic", "Xadd64", all...)

3
src/cmd/compile/internal/ssa/gen/MIPS.rules
View file

@ -383,6 +383,9 @@
(ANDconst <typ.UInt32> [3]
(XORconst <typ.UInt32> [3] ptr)))))) mem)
(AtomicAnd32 ...) => (LoweredAtomicAnd ...)
(AtomicOr32 ...) => (LoweredAtomicOr ...)
// checks
(NilCheck ...) => (LoweredNilCheck ...)

6
src/cmd/compile/internal/ssa/rewriteMIPS.go
View file

@ -44,6 +44,9 @@ func rewriteValueMIPS(v *Value) bool {
case OpAtomicAdd32:
v.Op = OpMIPSLoweredAtomicAdd
return true
case OpAtomicAnd32:
v.Op = OpMIPSLoweredAtomicAnd
return true
case OpAtomicAnd8:
return rewriteValueMIPS_OpAtomicAnd8(v)
case OpAtomicCompareAndSwap32:
@ -61,6 +64,9 @@ func rewriteValueMIPS(v *Value) bool {
case OpAtomicLoadPtr:
v.Op = OpMIPSLoweredAtomicLoad32
return true
case OpAtomicOr32:
v.Op = OpMIPSLoweredAtomicOr
return true
case OpAtomicOr8:
return rewriteValueMIPS_OpAtomicOr8(v)
case OpAtomicStore32: