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[dev.ssa] cmd/compile: move most types outside SSA

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The only types that remain in the ssa package
are special compiler-only types.

Change-Id: If957abf128ec0778910d67666c297f97f183b7ee
Reviewed-on: https://go-review.googlesource.com/12933
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Josh Bleecher Snyder 2015-07-30 11:03:05 -07:00
parent 165c1c16d1
commit 85e0329fbc
15 changed files with 262 additions and 192 deletions
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52
src/cmd/compile/internal/gc/ssa.go
View File

@ -67,8 +67,8 @@ func buildssa(fn *Node) (ssafn *ssa.Func, usessa bool) {
s.labels = map[string]*ssaLabel{}
s.labeledNodes = map[*Node]*ssaLabel{}
s.startmem = s.entryNewValue0(ssa.OpArg, ssa.TypeMem)
s.sp = s.entryNewValue0(ssa.OpSP, s.config.Uintptr) // TODO: use generic pointer type (unsafe.Pointer?) instead
s.sb = s.entryNewValue0(ssa.OpSB, s.config.Uintptr)
s.sp = s.entryNewValue0(ssa.OpSP, Types[TUINTPTR]) // TODO: use generic pointer type (unsafe.Pointer?) instead
s.sb = s.entryNewValue0(ssa.OpSB, Types[TUINTPTR])
// Generate addresses of local declarations
s.decladdrs = map[*Node]*ssa.Value{}
@ -90,8 +90,8 @@ func buildssa(fn *Node) (ssafn *ssa.Func, usessa bool) {
}
}
// nodfp is a special argument which is the function's FP.
aux := &ssa.ArgSymbol{Typ: s.config.Uintptr, Offset: 0, Sym: nodfp.Sym}
s.decladdrs[nodfp] = s.entryNewValue1A(ssa.OpAddr, s.config.Uintptr, aux, s.sp)
aux := &ssa.ArgSymbol{Typ: Types[TUINTPTR], Offset: 0, Sym: nodfp.Sym}
s.decladdrs[nodfp] = s.entryNewValue1A(ssa.OpAddr, Types[TUINTPTR], aux, s.sp)
// Convert the AST-based IR to the SSA-based IR
s.startBlock(s.f.Entry)
@ -1131,7 +1131,7 @@ func (s *state) expr(n *Node) *ssa.Value {
case OLT, OEQ, ONE, OLE, OGE, OGT:
a := s.expr(n.Left)
b := s.expr(n.Right)
return s.newValue2(s.ssaOp(n.Op, n.Left.Type), ssa.TypeBool, a, b)
return s.newValue2(s.ssaOp(n.Op, n.Left.Type), Types[TBOOL], a, b)
case OADD, OAND, OMUL, OOR, OSUB, OXOR:
a := s.expr(n.Left)
b := s.expr(n.Right)
@ -1209,7 +1209,7 @@ func (s *state) expr(n *Node) *ssa.Value {
case ODOTPTR:
p := s.expr(n.Left)
s.nilCheck(p)
p = s.newValue2(ssa.OpAddPtr, p.Type, p, s.constIntPtr(s.config.Uintptr, n.Xoffset))
p = s.newValue2(ssa.OpAddPtr, p.Type, p, s.constIntPtr(Types[TUINTPTR], n.Xoffset))
return s.newValue2(ssa.OpLoad, n.Type, p, s.mem())
case OINDEX:
@ -1220,10 +1220,10 @@ func (s *state) expr(n *Node) *ssa.Value {
var elemtype *Type
var len *ssa.Value
if n.Left.Type.IsString() {
len = s.newValue1(ssa.OpStringLen, s.config.Int, a)
len = s.newValue1(ssa.OpStringLen, Types[TINT], a)
elemtype = Types[TUINT8]
} else {
len = s.constInt(s.config.Int, n.Left.Type.Bound)
len = s.constInt(Types[TINT], n.Left.Type.Bound)
elemtype = n.Left.Type.Type
}
s.boundsCheck(i, len)
@ -1240,11 +1240,11 @@ func (s *state) expr(n *Node) *ssa.Value {
if n.Op == OCAP {
op = ssa.OpSliceCap
}
return s.newValue1(op, s.config.Int, s.expr(n.Left))
return s.newValue1(op, Types[TINT], s.expr(n.Left))
case n.Left.Type.IsString(): // string; not reachable for OCAP
return s.newValue1(ssa.OpStringLen, s.config.Int, s.expr(n.Left))
return s.newValue1(ssa.OpStringLen, Types[TINT], s.expr(n.Left))
default: // array
return s.constInt(s.config.Int, n.Left.Type.Bound)
return s.constInt(Types[TINT], n.Left.Type.Bound)
}
case OCALLFUNC, OCALLMETH:
@ -1281,7 +1281,7 @@ func (s *state) expr(n *Node) *ssa.Value {
if static {
call = s.newValue1A(ssa.OpStaticCall, ssa.TypeMem, left.Sym, s.mem())
} else {
entry := s.newValue2(ssa.OpLoad, s.config.Uintptr, closure, s.mem())
entry := s.newValue2(ssa.OpLoad, Types[TUINTPTR], closure, s.mem())
call = s.newValue3(ssa.OpClosureCall, ssa.TypeMem, entry, closure, s.mem())
}
dowidth(left.Type)
@ -1418,7 +1418,7 @@ func (s *state) addr(n *Node) *ssa.Value {
a := s.expr(n.Left)
i := s.expr(n.Right)
i = s.extendIndex(i)
len := s.newValue1(ssa.OpSliceLen, s.config.Uintptr, a)
len := s.newValue1(ssa.OpSliceLen, Types[TUINTPTR], a)
s.boundsCheck(i, len)
p := s.newValue1(ssa.OpSlicePtr, Ptrto(n.Left.Type.Type), a)
return s.newValue2(ssa.OpPtrIndex, Ptrto(n.Left.Type.Type), p, i)
@ -1426,7 +1426,7 @@ func (s *state) addr(n *Node) *ssa.Value {
a := s.addr(n.Left)
i := s.expr(n.Right)
i = s.extendIndex(i)
len := s.constInt(s.config.Int, n.Left.Type.Bound)
len := s.constInt(Types[TINT], n.Left.Type.Bound)
s.boundsCheck(i, len)
return s.newValue2(ssa.OpPtrIndex, Ptrto(n.Left.Type.Type), a, i)
}
@ -1436,11 +1436,11 @@ func (s *state) addr(n *Node) *ssa.Value {
return p
case ODOT:
p := s.addr(n.Left)
return s.newValue2(ssa.OpAddPtr, p.Type, p, s.constIntPtr(s.config.Uintptr, n.Xoffset))
return s.newValue2(ssa.OpAddPtr, p.Type, p, s.constIntPtr(Types[TUINTPTR], n.Xoffset))
case ODOTPTR:
p := s.expr(n.Left)
s.nilCheck(p)
return s.newValue2(ssa.OpAddPtr, p.Type, p, s.constIntPtr(s.config.Uintptr, n.Xoffset))
return s.newValue2(ssa.OpAddPtr, p.Type, p, s.constIntPtr(Types[TUINTPTR], n.Xoffset))
default:
s.Unimplementedf("addr: bad op %v", Oconv(int(n.Op), 0))
return nil
@ -1477,7 +1477,7 @@ func canSSA(n *Node) bool {
// Used only for automatically inserted nil checks,
// not for user code like 'x != nil'.
func (s *state) nilCheck(ptr *ssa.Value) {
c := s.newValue1(ssa.OpIsNonNil, ssa.TypeBool, ptr)
c := s.newValue1(ssa.OpIsNonNil, Types[TBOOL], ptr)
b := s.endBlock()
b.Kind = ssa.BlockIf
b.Control = c
@ -1496,7 +1496,7 @@ func (s *state) boundsCheck(idx, len *ssa.Value) {
// TODO: if index is 64-bit and we're compiling to 32-bit, check that high 32 bits are zero.
// bounds check
cmp := s.newValue2(ssa.OpIsInBounds, ssa.TypeBool, idx, len)
cmp := s.newValue2(ssa.OpIsInBounds, Types[TBOOL], idx, len)
b := s.endBlock()
b.Kind = ssa.BlockIf
b.Control = cmp
@ -2288,7 +2288,7 @@ func (s *state) extendIndex(v *ssa.Value) *ssa.Value {
s.Fatalf("bad unsigned index extension %s", v.Type)
}
}
return s.newValue1(op, s.config.Uintptr, v)
return s.newValue1(op, Types[TUINTPTR], v)
}
// ssaRegToReg maps ssa register numbers to obj register numbers.
@ -2374,6 +2374,20 @@ type ssaExport struct {
mustImplement bool
}
func (s *ssaExport) TypeBool() ssa.Type { return Types[TBOOL] }
func (s *ssaExport) TypeInt8() ssa.Type { return Types[TINT8] }
func (s *ssaExport) TypeInt16() ssa.Type { return Types[TINT16] }
func (s *ssaExport) TypeInt32() ssa.Type { return Types[TINT32] }
func (s *ssaExport) TypeInt64() ssa.Type { return Types[TINT64] }
func (s *ssaExport) TypeUInt8() ssa.Type { return Types[TUINT8] }
func (s *ssaExport) TypeUInt16() ssa.Type { return Types[TUINT16] }
func (s *ssaExport) TypeUInt32() ssa.Type { return Types[TUINT32] }
func (s *ssaExport) TypeUInt64() ssa.Type { return Types[TUINT64] }
func (s *ssaExport) TypeInt() ssa.Type { return Types[TINT] }
func (s *ssaExport) TypeUintptr() ssa.Type { return Types[TUINTPTR] }
func (s *ssaExport) TypeString() ssa.Type { return Types[TSTRING] }
func (s *ssaExport) TypeBytePtr() ssa.Type { return Ptrto(Types[TUINT8]) }
// StringData returns a symbol (a *Sym wrapped in an interface) which
// is the data component of a global string constant containing s.
func (*ssaExport) StringData(s string) interface{} {

36
src/cmd/compile/internal/ssa/config.go
View File

@ -5,11 +5,9 @@
package ssa
type Config struct {
arch string // "amd64", etc.
IntSize int64 // 4 or 8
PtrSize int64 // 4 or 8
Uintptr Type // pointer arithmetic type
Int Type
arch string // "amd64", etc.
IntSize int64 // 4 or 8
PtrSize int64 // 4 or 8
lowerBlock func(*Block) bool // lowering function
lowerValue func(*Value, *Config) bool // lowering function
fe Frontend // callbacks into compiler frontend
@ -17,7 +15,25 @@ type Config struct {
// TODO: more stuff. Compiler flags of interest, ...
}
type TypeSource interface {
TypeBool() Type
TypeInt8() Type
TypeInt16() Type
TypeInt32() Type
TypeInt64() Type
TypeUInt8() Type
TypeUInt16() Type
TypeUInt32() Type
TypeUInt64() Type
TypeInt() Type
TypeUintptr() Type
TypeString() Type
TypeBytePtr() Type // TODO: use unsafe.Pointer instead?
}
type Frontend interface {
TypeSource
// StringData returns a symbol pointing to the given string's contents.
StringData(string) interface{} // returns *gc.Sym
@ -50,16 +66,6 @@ func NewConfig(arch string, fe Frontend) *Config {
fe.Unimplementedf("arch %s not implemented", arch)
}
// cache the frequently-used types in the config
c.Uintptr = TypeUInt32
c.Int = TypeInt32
if c.PtrSize == 8 {
c.Uintptr = TypeUInt64
}
if c.IntSize == 8 {
c.Int = TypeInt64
}
return c
}

8
src/cmd/compile/internal/ssa/deadcode_test.go
View File

@ -7,7 +7,7 @@ package ssa
import "testing"
func TestDeadLoop(t *testing.T) {
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
fun := Fun(c, "entry",
Bloc("entry",
Valu("mem", OpArg, TypeMem, 0, ".mem"),
@ -37,7 +37,7 @@ func TestDeadLoop(t *testing.T) {
}
func TestDeadValue(t *testing.T) {
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
fun := Fun(c, "entry",
Bloc("entry",
Valu("mem", OpArg, TypeMem, 0, ".mem"),
@ -60,7 +60,7 @@ func TestDeadValue(t *testing.T) {
}
func TestNeverTaken(t *testing.T) {
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
fun := Fun(c, "entry",
Bloc("entry",
Valu("cond", OpConstBool, TypeBool, 0, false),
@ -95,7 +95,7 @@ func TestNeverTaken(t *testing.T) {
}
func TestNestedDeadBlocks(t *testing.T) {
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
fun := Fun(c, "entry",
Bloc("entry",
Valu("mem", OpArg, TypeMem, 0, ".mem"),

6
src/cmd/compile/internal/ssa/deadstore_test.go
View File

@ -9,7 +9,7 @@ import (
)
func TestDeadStore(t *testing.T) {
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
ptrType := &TypeImpl{Size_: 8, Ptr: true, Name: "testptr"} // dummy for testing
fun := Fun(c, "entry",
Bloc("entry",
@ -36,7 +36,7 @@ func TestDeadStore(t *testing.T) {
}
func TestDeadStorePhi(t *testing.T) {
// make sure we don't get into an infinite loop with phi values.
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
ptrType := &TypeImpl{Size_: 8, Ptr: true, Name: "testptr"} // dummy for testing
fun := Fun(c, "entry",
Bloc("entry",
@ -62,7 +62,7 @@ func TestDeadStoreTypes(t *testing.T) {
// stronger restriction, that one store can't shadow another unless the
// types of the address fields are identical (where identicalness is
// decided by the CSE pass).
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
t1 := &TypeImpl{Size_: 8, Ptr: true, Name: "t1"}
t2 := &TypeImpl{Size_: 4, Ptr: true, Name: "t2"}
fun := Fun(c, "entry",

16
src/cmd/compile/internal/ssa/dom_test.go
View File

@ -220,7 +220,7 @@ func verifyDominators(t *testing.T, fut fun, domFn domFunc, doms map[string]stri
}
func TestDominatorsSingleBlock(t *testing.T) {
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
fun := Fun(c, "entry",
Bloc("entry",
Valu("mem", OpArg, TypeMem, 0, ".mem"),
@ -235,7 +235,7 @@ func TestDominatorsSingleBlock(t *testing.T) {
}
func TestDominatorsSimple(t *testing.T) {
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
fun := Fun(c, "entry",
Bloc("entry",
Valu("mem", OpArg, TypeMem, 0, ".mem"),
@ -263,7 +263,7 @@ func TestDominatorsSimple(t *testing.T) {
}
func TestDominatorsMultPredFwd(t *testing.T) {
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
fun := Fun(c, "entry",
Bloc("entry",
Valu("mem", OpArg, TypeMem, 0, ".mem"),
@ -291,7 +291,7 @@ func TestDominatorsMultPredFwd(t *testing.T) {
}
func TestDominatorsDeadCode(t *testing.T) {
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
fun := Fun(c, "entry",
Bloc("entry",
Valu("mem", OpArg, TypeMem, 0, ".mem"),
@ -314,7 +314,7 @@ func TestDominatorsDeadCode(t *testing.T) {
}
func TestDominatorsMultPredRev(t *testing.T) {
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
fun := Fun(c, "entry",
Bloc("entry",
Valu("mem", OpArg, TypeMem, 0, ".mem"),
@ -342,7 +342,7 @@ func TestDominatorsMultPredRev(t *testing.T) {
}
func TestDominatorsMultPred(t *testing.T) {
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
fun := Fun(c, "entry",
Bloc("entry",
Valu("mem", OpArg, TypeMem, 0, ".mem"),
@ -370,7 +370,7 @@ func TestDominatorsMultPred(t *testing.T) {
}
func TestPostDominators(t *testing.T) {
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
fun := Fun(c, "entry",
Bloc("entry",
Valu("mem", OpArg, TypeMem, 0, ".mem"),
@ -396,7 +396,7 @@ func TestPostDominators(t *testing.T) {
}
func TestInfiniteLoop(t *testing.T) {
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
// note lack of an exit block
fun := Fun(c, "entry",
Bloc("entry",

20
src/cmd/compile/internal/ssa/export_test.go
View File

@ -11,6 +11,12 @@ var PrintFunc = printFunc
var Opt = opt
var Deadcode = deadcode
func testConfig(t *testing.T) *Config {
return NewConfig("amd64", DummyFrontend{t})
}
// DummyFrontend is a test-only frontend.
// It assumes 64 bit integers and pointers.
type DummyFrontend struct {
t testing.TB
}
@ -22,3 +28,17 @@ func (DummyFrontend) StringData(s string) interface{} {
func (d DummyFrontend) Logf(msg string, args ...interface{}) { d.t.Logf(msg, args...) }
func (d DummyFrontend) Fatalf(msg string, args ...interface{}) { d.t.Fatalf(msg, args...) }
func (d DummyFrontend) Unimplementedf(msg string, args ...interface{}) { d.t.Fatalf(msg, args...) }
func (d DummyFrontend) TypeBool() Type { return TypeBool }
func (d DummyFrontend) TypeInt8() Type { return TypeInt8 }
func (d DummyFrontend) TypeInt16() Type { return TypeInt16 }
func (d DummyFrontend) TypeInt32() Type { return TypeInt32 }
func (d DummyFrontend) TypeInt64() Type { return TypeInt64 }
func (d DummyFrontend) TypeUInt8() Type { return TypeUInt8 }
func (d DummyFrontend) TypeUInt16() Type { return TypeUInt16 }
func (d DummyFrontend) TypeUInt32() Type { return TypeUInt32 }
func (d DummyFrontend) TypeUInt64() Type { return TypeUInt64 }
func (d DummyFrontend) TypeInt() Type { return TypeInt64 }
func (d DummyFrontend) TypeUintptr() Type { return TypeUInt64 }
func (d DummyFrontend) TypeString() Type { panic("unimplemented") }
func (d DummyFrontend) TypeBytePtr() Type { return TypeBytePtr }

4
src/cmd/compile/internal/ssa/func_test.go
View File

@ -262,7 +262,7 @@ func addEdge(b, c *Block) {
}
func TestArgs(t *testing.T) {
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
fun := Fun(c, "entry",
Bloc("entry",
Valu("a", OpConst64, TypeInt64, 14, nil),
@ -282,7 +282,7 @@ func TestArgs(t *testing.T) {
}
func TestEquiv(t *testing.T) {
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
equivalentCases := []struct{ f, g fun }{
// simple case
{

12
src/cmd/compile/internal/ssa/gen/AMD64.rules
View File

@ -211,7 +211,7 @@
(IsNonNil p) -> (SETNE (TESTQ <TypeFlags> p p))
(IsInBounds idx len) -> (SETB (CMPQ <TypeFlags> idx len))
(Move [size] dst src mem) -> (REPMOVSB dst src (MOVQconst <TypeUInt64> [size]) mem)
(Move [size] dst src mem) -> (REPMOVSB dst src (MOVQconst <config.Frontend().TypeUInt64()> [size]) mem)
(Not x) -> (XORBconst [1] x)
@ -391,15 +391,15 @@
// lower Zero instructions with word sizes
(Zero [0] _ mem) -> (Copy mem)
(Zero [1] destptr mem) -> (MOVBstore destptr (MOVBconst <TypeInt8> [0]) mem)
(Zero [2] destptr mem) -> (MOVWstore destptr (MOVWconst <TypeInt16> [0]) mem)
(Zero [4] destptr mem) -> (MOVLstore destptr (MOVLconst <TypeInt32> [0]) mem)
(Zero [8] destptr mem) -> (MOVQstore destptr (MOVQconst <TypeInt64> [0]) mem)
(Zero [1] destptr mem) -> (MOVBstore destptr (MOVBconst <config.Frontend().TypeInt8()> [0]) mem)
(Zero [2] destptr mem) -> (MOVWstore destptr (MOVWconst <config.Frontend().TypeInt16()> [0]) mem)
(Zero [4] destptr mem) -> (MOVLstore destptr (MOVLconst <config.Frontend().TypeInt32()> [0]) mem)
(Zero [8] destptr mem) -> (MOVQstore destptr (MOVQconst <config.Frontend().TypeInt64()> [0]) mem)
// rewrite anything less than 4 words into a series of MOV[BWLQ] $0, ptr(off) instructions
(Zero [size] destptr mem) && size < 4*8 -> (MOVXzero [size] destptr mem)
// Use STOSQ to zero memory. Rewrite this into storing the words with REPSTOSQ and then filling in the remainder with linear moves
(Zero [size] destptr mem) && size >= 4*8 -> (Zero [size%8] (OffPtr <TypeUInt64> [size-(size%8)] destptr) (REPSTOSQ <TypeMem> destptr (MOVQconst <TypeUInt64> [size/8]) mem))
(Zero [size] destptr mem) && size >= 4*8 -> (Zero [size%8] (OffPtr <config.Frontend().TypeUInt64()> [size-(size%8)] destptr) (REPSTOSQ <TypeMem> destptr (MOVQconst <config.Frontend().TypeUInt64()> [size/8]) mem))
// Absorb InvertFlags into branches.
(LT (InvertFlags cmp) yes no) -> (GT cmp yes no)

16
src/cmd/compile/internal/ssa/gen/generic.rules
View File

@ -29,8 +29,8 @@
// tear apart slices
// TODO: anything that generates a slice needs to go in here.
(SlicePtr (Load ptr mem)) -> (Load ptr mem)
(SliceLen (Load ptr mem)) -> (Load (AddPtr <ptr.Type> ptr (ConstPtr <config.Uintptr> [config.PtrSize])) mem)
(SliceCap (Load ptr mem)) -> (Load (AddPtr <ptr.Type> ptr (ConstPtr <config.Uintptr> [config.PtrSize*2])) mem)
(SliceLen (Load ptr mem)) -> (Load (AddPtr <ptr.Type> ptr (ConstPtr <config.Frontend().TypeUintptr()> [config.PtrSize])) mem)
(SliceCap (Load ptr mem)) -> (Load (AddPtr <ptr.Type> ptr (ConstPtr <config.Frontend().TypeUintptr()> [config.PtrSize*2])) mem)
// slice and interface comparisons
// the frontend ensures that we can only compare against nil
@ -38,13 +38,13 @@
(EqFat x y) && x.Op == OpConstNil && y.Op != OpConstNil -> (EqFat y x)
(NeqFat x y) && x.Op == OpConstNil && y.Op != OpConstNil -> (NeqFat y x)
// it suffices to check the first word (backing array for slices, dynamic type for interfaces)
(EqFat (Load ptr mem) (ConstNil)) -> (EqPtr (Load <config.Uintptr> ptr mem) (ConstPtr <config.Uintptr> [0]))
(NeqFat (Load ptr mem) (ConstNil)) -> (NeqPtr (Load <config.Uintptr> ptr mem) (ConstPtr <config.Uintptr> [0]))
(EqFat (Load ptr mem) (ConstNil)) -> (EqPtr (Load <config.Frontend().TypeUintptr()> ptr mem) (ConstPtr <config.Frontend().TypeUintptr()> [0]))
(NeqFat (Load ptr mem) (ConstNil)) -> (NeqPtr (Load <config.Frontend().TypeUintptr()> ptr mem) (ConstPtr <config.Frontend().TypeUintptr()> [0]))
// indexing operations
// Note: bounds check has already been done
(ArrayIndex (Load ptr mem) idx) -> (Load (PtrIndex <v.Type.PtrTo()> ptr idx) mem)
(PtrIndex <t> ptr idx) -> (AddPtr ptr (MulPtr <config.Uintptr> idx (ConstPtr <config.Uintptr> [t.Elem().Size()])))
(PtrIndex <t> ptr idx) -> (AddPtr ptr (MulPtr <config.Frontend().TypeUintptr()> idx (ConstPtr <config.Frontend().TypeUintptr()> [t.Elem().Size()])))
(StructSelect [idx] (Load ptr mem)) -> (Load (OffPtr <v.Type.PtrTo()> [idx] ptr) mem)
// big-object moves
@ -52,11 +52,11 @@
(Store dst (Load <t> src mem) mem) && t.Size() > 8 -> (Move [t.Size()] dst src mem)
// string ops
(ConstString {s}) -> (StringMake (Addr <TypeBytePtr> {config.fe.StringData(s.(string))} (SB <config.Uintptr>)) (ConstPtr <config.Uintptr> [int64(len(s.(string)))]))
(Load <t> ptr mem) && t.IsString() -> (StringMake (Load <TypeBytePtr> ptr mem) (Load <config.Uintptr> (OffPtr <TypeBytePtr> [config.PtrSize] ptr) mem))
(ConstString {s}) -> (StringMake (Addr <config.Frontend().TypeBytePtr()> {config.fe.StringData(s.(string))} (SB <config.Frontend().TypeUintptr()>)) (ConstPtr <config.Frontend().TypeUintptr()> [int64(len(s.(string)))]))
(Load <t> ptr mem) && t.IsString() -> (StringMake (Load <config.Frontend().TypeBytePtr()> ptr mem) (Load <config.Frontend().TypeUintptr()> (OffPtr <config.Frontend().TypeBytePtr()> [config.PtrSize] ptr) mem))
(StringPtr (StringMake ptr _)) -> ptr
(StringLen (StringMake _ len)) -> len
(Store dst str mem) && str.Type.IsString() -> (Store (OffPtr <TypeBytePtr> [config.PtrSize] dst) (StringLen <config.Uintptr> str) (Store <TypeMem> dst (StringPtr <TypeBytePtr> str) mem))
(Store dst str mem) && str.Type.IsString() -> (Store (OffPtr <config.Frontend().TypeBytePtr()> [config.PtrSize] dst) (StringLen <config.Frontend().TypeUintptr()> str) (Store <TypeMem> dst (StringPtr <config.Frontend().TypeBytePtr()> str) mem))
(If (Not cond) yes no) -> (If cond no yes)
(If (ConstBool {c}) yes no) && c.(bool) -> (Plain nil yes)

60
src/cmd/compile/internal/ssa/rewriteAMD64.go
View File

@ -3392,7 +3392,7 @@ func rewriteValueAMD64(v *Value, config *Config) bool {
case OpMove:
// match: (Move [size] dst src mem)
// cond:
// result: (REPMOVSB dst src (MOVQconst <TypeUInt64> [size]) mem)
// result: (REPMOVSB dst src (MOVQconst <config.Frontend().TypeUInt64()> [size]) mem)
{
size := v.AuxInt
dst := v.Args[0]
@ -3405,14 +3405,14 @@ func rewriteValueAMD64(v *Value, config *Config) bool {
v.AddArg(dst)
v.AddArg(src)
v0 := v.Block.NewValue0(v.Line, OpAMD64MOVQconst, TypeInvalid)
v0.Type = TypeUInt64
v0.Type = config.Frontend().TypeUInt64()
v0.AuxInt = size
v.AddArg(v0)
v.AddArg(mem)
return true
}
goto end2aab774aedae2c616ee88bfa87cdf30e
end2aab774aedae2c616ee88bfa87cdf30e:
goto end4dd156b33beb9981378c91e46f055a56
end4dd156b33beb9981378c91e46f055a56:
;
case OpMul16:
// match: (Mul16 x y)
@ -6919,10 +6919,10 @@ func rewriteValueAMD64(v *Value, config *Config) bool {
;
// match: (Zero [1] destptr mem)
// cond:
// result: (MOVBstore destptr (MOVBconst <TypeInt8> [0]) mem)
// result: (MOVBstore destptr (MOVBconst <config.Frontend().TypeInt8()> [0]) mem)
{
if v.AuxInt != 1 {
goto end16839f51d2e9cf9548f216848406bd97
goto end56bcaef03cce4d15c03efff669bb5585
}
destptr := v.Args[0]
mem := v.Args[1]
@ -6932,21 +6932,21 @@ func rewriteValueAMD64(v *Value, config *Config) bool {
v.resetArgs()
v.AddArg(destptr)
v0 := v.Block.NewValue0(v.Line, OpAMD64MOVBconst, TypeInvalid)
v0.Type = TypeInt8
v0.Type = config.Frontend().TypeInt8()
v0.AuxInt = 0
v.AddArg(v0)
v.AddArg(mem)
return true
}
goto end16839f51d2e9cf9548f216848406bd97
end16839f51d2e9cf9548f216848406bd97:
goto end56bcaef03cce4d15c03efff669bb5585
end56bcaef03cce4d15c03efff669bb5585:
;
// match: (Zero [2] destptr mem)
// cond:
// result: (MOVWstore destptr (MOVWconst <TypeInt16> [0]) mem)
// result: (MOVWstore destptr (MOVWconst <config.Frontend().TypeInt16()> [0]) mem)
{
if v.AuxInt != 2 {
goto enddc4a090329efde9ca19983ad18174cbb
goto endf52f08f1f7b0ae220c4cfca6586a8586
}
destptr := v.Args[0]
mem := v.Args[1]
@ -6956,21 +6956,21 @@ func rewriteValueAMD64(v *Value, config *Config) bool {
v.resetArgs()
v.AddArg(destptr)
v0 := v.Block.NewValue0(v.Line, OpAMD64MOVWconst, TypeInvalid)
v0.Type = TypeInt16
v0.Type = config.Frontend().TypeInt16()
v0.AuxInt = 0
v.AddArg(v0)
v.AddArg(mem)
return true
}
goto enddc4a090329efde9ca19983ad18174cbb
enddc4a090329efde9ca19983ad18174cbb:
goto endf52f08f1f7b0ae220c4cfca6586a8586
endf52f08f1f7b0ae220c4cfca6586a8586:
;
// match: (Zero [4] destptr mem)
// cond:
// result: (MOVLstore destptr (MOVLconst <TypeInt32> [0]) mem)
// result: (MOVLstore destptr (MOVLconst <config.Frontend().TypeInt32()> [0]) mem)
{
if v.AuxInt != 4 {
goto end365a027b67399ad8d5d2d5eca847f7d8
goto end41c91e0c7a23e233de77812b5264fd10
}
destptr := v.Args[0]
mem := v.Args[1]
@ -6980,21 +6980,21 @@ func rewriteValueAMD64(v *Value, config *Config) bool {
v.resetArgs()
v.AddArg(destptr)
v0 := v.Block.NewValue0(v.Line, OpAMD64MOVLconst, TypeInvalid)
v0.Type = TypeInt32
v0.Type = config.Frontend().TypeInt32()
v0.AuxInt = 0
v.AddArg(v0)
v.AddArg(mem)
return true
}
goto end365a027b67399ad8d5d2d5eca847f7d8
end365a027b67399ad8d5d2d5eca847f7d8:
goto end41c91e0c7a23e233de77812b5264fd10
end41c91e0c7a23e233de77812b5264fd10:
;
// match: (Zero [8] destptr mem)
// cond:
// result: (MOVQstore destptr (MOVQconst <TypeInt64> [0]) mem)
// result: (MOVQstore destptr (MOVQconst <config.Frontend().TypeInt64()> [0]) mem)
{
if v.AuxInt != 8 {
goto end5808a5e9c68555a82c3514db39017e56
goto end157ad586af643d8dac6cc84a776000ca
}
destptr := v.Args[0]
mem := v.Args[1]
@ -7004,14 +7004,14 @@ func rewriteValueAMD64(v *Value, config *Config) bool {
v.resetArgs()
v.AddArg(destptr)
v0 := v.Block.NewValue0(v.Line, OpAMD64MOVQconst, TypeInvalid)
v0.Type = TypeInt64
v0.Type = config.Frontend().TypeInt64()
v0.AuxInt = 0
v.AddArg(v0)
v.AddArg(mem)
return true
}
goto end5808a5e9c68555a82c3514db39017e56
end5808a5e9c68555a82c3514db39017e56:
goto end157ad586af643d8dac6cc84a776000ca
end157ad586af643d8dac6cc84a776000ca:
;
// match: (Zero [size] destptr mem)
// cond: size < 4*8
@ -7037,13 +7037,13 @@ func rewriteValueAMD64(v *Value, config *Config) bool {
;
// match: (Zero [size] destptr mem)
// cond: size >= 4*8
// result: (Zero [size%8] (OffPtr <TypeUInt64> [size-(size%8)] destptr) (REPSTOSQ <TypeMem> destptr (MOVQconst <TypeUInt64> [size/8]) mem))
// result: (Zero [size%8] (OffPtr <config.Frontend().TypeUInt64()> [size-(size%8)] destptr) (REPSTOSQ <TypeMem> destptr (MOVQconst <config.Frontend().TypeUInt64()> [size/8]) mem))
{
size := v.AuxInt
destptr := v.Args[0]
mem := v.Args[1]
if !(size >= 4*8) {
goto endb3058a90f909821d5689fb358519828b
goto end84c39fe2e8d40e0042a10741a0ef16bd
}
v.Op = OpZero
v.AuxInt = 0
@ -7051,7 +7051,7 @@ func rewriteValueAMD64(v *Value, config *Config) bool {
v.resetArgs()
v.AuxInt = size % 8
v0 := v.Block.NewValue0(v.Line, OpOffPtr, TypeInvalid)
v0.Type = TypeUInt64
v0.Type = config.Frontend().TypeUInt64()
v0.AuxInt = size - (size % 8)
v0.AddArg(destptr)
v.AddArg(v0)
@ -7059,15 +7059,15 @@ func rewriteValueAMD64(v *Value, config *Config) bool {
v1.Type = TypeMem
v1.AddArg(destptr)
v2 := v.Block.NewValue0(v.Line, OpAMD64MOVQconst, TypeInvalid)
v2.Type = TypeUInt64
v2.Type = config.Frontend().TypeUInt64()
v2.AuxInt = size / 8
v1.AddArg(v2)
v1.AddArg(mem)
v.AddArg(v1)
return true
}
goto endb3058a90f909821d5689fb358519828b
endb3058a90f909821d5689fb358519828b:
goto end84c39fe2e8d40e0042a10741a0ef16bd
end84c39fe2e8d40e0042a10741a0ef16bd:
;
case OpZeroExt16to32:
// match: (ZeroExt16to32 x)

98
src/cmd/compile/internal/ssa/rewritegeneric.go
View File

@ -79,7 +79,7 @@ func rewriteValuegeneric(v *Value, config *Config) bool {
case OpConstString:
// match: (ConstString {s})
// cond:
// result: (StringMake (Addr <TypeBytePtr> {config.fe.StringData(s.(string))} (SB <config.Uintptr>)) (ConstPtr <config.Uintptr> [int64(len(s.(string)))]))
// result: (StringMake (Addr <config.Frontend().TypeBytePtr()> {config.fe.StringData(s.(string))} (SB <config.Frontend().TypeUintptr()>)) (ConstPtr <config.Frontend().TypeUintptr()> [int64(len(s.(string)))]))
{
s := v.Aux
v.Op = OpStringMake
@ -87,20 +87,20 @@ func rewriteValuegeneric(v *Value, config *Config) bool {
v.Aux = nil
v.resetArgs()
v0 := v.Block.NewValue0(v.Line, OpAddr, TypeInvalid)
v0.Type = TypeBytePtr
v0.Type = config.Frontend().TypeBytePtr()
v0.Aux = config.fe.StringData(s.(string))
v1 := v.Block.NewValue0(v.Line, OpSB, TypeInvalid)
v1.Type = config.Uintptr
v1.Type = config.Frontend().TypeUintptr()
v0.AddArg(v1)
v.AddArg(v0)
v2 := v.Block.NewValue0(v.Line, OpConstPtr, TypeInvalid)
v2.Type = config.Uintptr
v2.Type = config.Frontend().TypeUintptr()
v2.AuxInt = int64(len(s.(string)))
v.AddArg(v2)
return true
}
goto end1a01fc02fad8727f9a3b716cfdac3a44
end1a01fc02fad8727f9a3b716cfdac3a44:
goto end68cc91679848c7c30bd8b0a8ed533843
end68cc91679848c7c30bd8b0a8ed533843:
;
case OpEqFat:
// match: (EqFat x y)
@ -125,33 +125,33 @@ func rewriteValuegeneric(v *Value, config *Config) bool {
;
// match: (EqFat (Load ptr mem) (ConstNil))
// cond:
// result: (EqPtr (Load <config.Uintptr> ptr mem) (ConstPtr <config.Uintptr> [0]))
// result: (EqPtr (Load <config.Frontend().TypeUintptr()> ptr mem) (ConstPtr <config.Frontend().TypeUintptr()> [0]))
{
if v.Args[0].Op != OpLoad {
goto end2597220d1792c84d362da7901d2065d2
goto end540dc8dfbc66adcd3db2d7e819c534f6
}
ptr := v.Args[0].Args[0]
mem := v.Args[0].Args[1]
if v.Args[1].Op != OpConstNil {
goto end2597220d1792c84d362da7901d2065d2
goto end540dc8dfbc66adcd3db2d7e819c534f6
}
v.Op = OpEqPtr
v.AuxInt = 0
v.Aux = nil
v.resetArgs()
v0 := v.Block.NewValue0(v.Line, OpLoad, TypeInvalid)
v0.Type = config.Uintptr
v0.Type = config.Frontend().TypeUintptr()
v0.AddArg(ptr)
v0.AddArg(mem)
v.AddArg(v0)
v1 := v.Block.NewValue0(v.Line, OpConstPtr, TypeInvalid)
v1.Type = config.Uintptr
v1.Type = config.Frontend().TypeUintptr()
v1.AuxInt = 0
v.AddArg(v1)
return true
}
goto end2597220d1792c84d362da7901d2065d2
end2597220d1792c84d362da7901d2065d2:
goto end540dc8dfbc66adcd3db2d7e819c534f6
end540dc8dfbc66adcd3db2d7e819c534f6:
;
case OpIsInBounds:
// match: (IsInBounds (ConstPtr [c]) (ConstPtr [d]))
@ -179,27 +179,27 @@ func rewriteValuegeneric(v *Value, config *Config) bool {
case OpLoad:
// match: (Load <t> ptr mem)
// cond: t.IsString()
// result: (StringMake (Load <TypeBytePtr> ptr mem) (Load <config.Uintptr> (OffPtr <TypeBytePtr> [config.PtrSize] ptr) mem))
// result: (StringMake (Load <config.Frontend().TypeBytePtr()> ptr mem) (Load <config.Frontend().TypeUintptr()> (OffPtr <config.Frontend().TypeBytePtr()> [config.PtrSize] ptr) mem))
{
t := v.Type
ptr := v.Args[0]
mem := v.Args[1]
if !(t.IsString()) {
goto endce3ba169a57b8a9f6b12751d49b4e23a
goto end18afa4a6fdd6d0b92ed292840898c8f6
}
v.Op = OpStringMake
v.AuxInt = 0
v.Aux = nil
v.resetArgs()
v0 := v.Block.NewValue0(v.Line, OpLoad, TypeInvalid)
v0.Type = TypeBytePtr
v0.Type = config.Frontend().TypeBytePtr()
v0.AddArg(ptr)
v0.AddArg(mem)
v.AddArg(v0)
v1 := v.Block.NewValue0(v.Line, OpLoad, TypeInvalid)
v1.Type = config.Uintptr
v1.Type = config.Frontend().TypeUintptr()
v2 := v.Block.NewValue0(v.Line, OpOffPtr, TypeInvalid)
v2.Type = TypeBytePtr
v2.Type = config.Frontend().TypeBytePtr()
v2.AuxInt = config.PtrSize
v2.AddArg(ptr)
v1.AddArg(v2)
@ -207,8 +207,8 @@ func rewriteValuegeneric(v *Value, config *Config) bool {
v.AddArg(v1)
return true
}
goto endce3ba169a57b8a9f6b12751d49b4e23a
endce3ba169a57b8a9f6b12751d49b4e23a:
goto end18afa4a6fdd6d0b92ed292840898c8f6
end18afa4a6fdd6d0b92ed292840898c8f6:
;
case OpMul64:
// match: (Mul64 (Const64 [c]) (Const64 [d]))
@ -279,38 +279,38 @@ func rewriteValuegeneric(v *Value, config *Config) bool {
;
// match: (NeqFat (Load ptr mem) (ConstNil))
// cond:
// result: (NeqPtr (Load <config.Uintptr> ptr mem) (ConstPtr <config.Uintptr> [0]))
// result: (NeqPtr (Load <config.Frontend().TypeUintptr()> ptr mem) (ConstPtr <config.Frontend().TypeUintptr()> [0]))
{
if v.Args[0].Op != OpLoad {
goto end03a0fc8dde062c55439174f70c19e6ce
goto end67d723bb0f39a5c897816abcf411e5cf
}
ptr := v.Args[0].Args[0]
mem := v.Args[0].Args[1]
if v.Args[1].Op != OpConstNil {
goto end03a0fc8dde062c55439174f70c19e6ce
goto end67d723bb0f39a5c897816abcf411e5cf
}
v.Op = OpNeqPtr
v.AuxInt = 0
v.Aux = nil
v.resetArgs()
v0 := v.Block.NewValue0(v.Line, OpLoad, TypeInvalid)
v0.Type = config.Uintptr
v0.Type = config.Frontend().TypeUintptr()
v0.AddArg(ptr)
v0.AddArg(mem)
v.AddArg(v0)
v1 := v.Block.NewValue0(v.Line, OpConstPtr, TypeInvalid)
v1.Type = config.Uintptr
v1.Type = config.Frontend().TypeUintptr()
v1.AuxInt = 0
v.AddArg(v1)
return true
}
goto end03a0fc8dde062c55439174f70c19e6ce
end03a0fc8dde062c55439174f70c19e6ce:
goto end67d723bb0f39a5c897816abcf411e5cf
end67d723bb0f39a5c897816abcf411e5cf:
;
case OpPtrIndex:
// match: (PtrIndex <t> ptr idx)
// cond:
// result: (AddPtr ptr (MulPtr <config.Uintptr> idx (ConstPtr <config.Uintptr> [t.Elem().Size()])))
// result: (AddPtr ptr (MulPtr <config.Frontend().TypeUintptr()> idx (ConstPtr <config.Frontend().TypeUintptr()> [t.Elem().Size()])))
{
t := v.Type
ptr := v.Args[0]
@ -321,25 +321,25 @@ func rewriteValuegeneric(v *Value, config *Config) bool {
v.resetArgs()
v.AddArg(ptr)
v0 := v.Block.NewValue0(v.Line, OpMulPtr, TypeInvalid)
v0.Type = config.Uintptr
v0.Type = config.Frontend().TypeUintptr()
v0.AddArg(idx)
v1 := v.Block.NewValue0(v.Line, OpConstPtr, TypeInvalid)
v1.Type = config.Uintptr
v1.Type = config.Frontend().TypeUintptr()
v1.AuxInt = t.Elem().Size()
v0.AddArg(v1)
v.AddArg(v0)
return true
}
goto endfb3e605edaa4c3c0684c4fa9c8f150ee
endfb3e605edaa4c3c0684c4fa9c8f150ee:
goto endf7546737f42c76a99699f241d41f491a
endf7546737f42c76a99699f241d41f491a:
;
case OpSliceCap:
// match: (SliceCap (Load ptr mem))
// cond:
// result: (Load (AddPtr <ptr.Type> ptr (ConstPtr <config.Uintptr> [config.PtrSize*2])) mem)
// result: (Load (AddPtr <ptr.Type> ptr (ConstPtr <config.Frontend().TypeUintptr()> [config.PtrSize*2])) mem)
{
if v.Args[0].Op != OpLoad {
goto end18c7acae3d96b30b9e5699194df4a687
goto end6696811bf6bd45e505d24c1a15c68e70
}
ptr := v.Args[0].Args[0]
mem := v.Args[0].Args[1]
@ -351,23 +351,23 @@ func rewriteValuegeneric(v *Value, config *Config) bool {
v0.Type = ptr.Type
v0.AddArg(ptr)
v1 := v.Block.NewValue0(v.Line, OpConstPtr, TypeInvalid)
v1.Type = config.Uintptr
v1.Type = config.Frontend().TypeUintptr()
v1.AuxInt = config.PtrSize * 2
v0.AddArg(v1)
v.AddArg(v0)
v.AddArg(mem)
return true
}
goto end18c7acae3d96b30b9e5699194df4a687
end18c7acae3d96b30b9e5699194df4a687:
goto end6696811bf6bd45e505d24c1a15c68e70
end6696811bf6bd45e505d24c1a15c68e70:
;
case OpSliceLen:
// match: (SliceLen (Load ptr mem))
// cond:
// result: (Load (AddPtr <ptr.Type> ptr (ConstPtr <config.Uintptr> [config.PtrSize])) mem)
// result: (Load (AddPtr <ptr.Type> ptr (ConstPtr <config.Frontend().TypeUintptr()> [config.PtrSize])) mem)
{
if v.Args[0].Op != OpLoad {
goto end2dc65aee31bb0d91847032be777777d2
goto end9844ce3e290e81355493141e653e37d5
}
ptr := v.Args[0].Args[0]
mem := v.Args[0].Args[1]
@ -379,15 +379,15 @@ func rewriteValuegeneric(v *Value, config *Config) bool {
v0.Type = ptr.Type
v0.AddArg(ptr)
v1 := v.Block.NewValue0(v.Line, OpConstPtr, TypeInvalid)
v1.Type = config.Uintptr
v1.Type = config.Frontend().TypeUintptr()
v1.AuxInt = config.PtrSize
v0.AddArg(v1)
v.AddArg(v0)
v.AddArg(mem)
return true
}
goto end2dc65aee31bb0d91847032be777777d2
end2dc65aee31bb0d91847032be777777d2:
goto end9844ce3e290e81355493141e653e37d5
end9844ce3e290e81355493141e653e37d5:
;
case OpSlicePtr:
// match: (SlicePtr (Load ptr mem))
@ -443,40 +443,40 @@ func rewriteValuegeneric(v *Value, config *Config) bool {
;
// match: (Store dst str mem)
// cond: str.Type.IsString()
// result: (Store (OffPtr <TypeBytePtr> [config.PtrSize] dst) (StringLen <config.Uintptr> str) (Store <TypeMem> dst (StringPtr <TypeBytePtr> str) mem))
// result: (Store (OffPtr <config.Frontend().TypeBytePtr()> [config.PtrSize] dst) (StringLen <config.Frontend().TypeUintptr()> str) (Store <TypeMem> dst (StringPtr <config.Frontend().TypeBytePtr()> str) mem))
{
dst := v.Args[0]
str := v.Args[1]
mem := v.Args[2]
if !(str.Type.IsString()) {
goto endb47e037c1e5ac54c3a41d53163d8aef6
goto enddf0c5a150f4b4bf6715fd2bd4bb4cc20
}
v.Op = OpStore
v.AuxInt = 0
v.Aux = nil
v.resetArgs()
v0 := v.Block.NewValue0(v.Line, OpOffPtr, TypeInvalid)
v0.Type = TypeBytePtr
v0.Type = config.Frontend().TypeBytePtr()
v0.AuxInt = config.PtrSize
v0.AddArg(dst)
v.AddArg(v0)
v1 := v.Block.NewValue0(v.Line, OpStringLen, TypeInvalid)
v1.Type = config.Uintptr
v1.Type = config.Frontend().TypeUintptr()
v1.AddArg(str)
v.AddArg(v1)
v2 := v.Block.NewValue0(v.Line, OpStore, TypeInvalid)
v2.Type = TypeMem
v2.AddArg(dst)
v3 := v.Block.NewValue0(v.Line, OpStringPtr, TypeInvalid)
v3.Type = TypeBytePtr
v3.Type = config.Frontend().TypeBytePtr()
v3.AddArg(str)
v2.AddArg(v3)
v2.AddArg(mem)
v.AddArg(v2)
return true
}
goto endb47e037c1e5ac54c3a41d53163d8aef6
endb47e037c1e5ac54c3a41d53163d8aef6:
goto enddf0c5a150f4b4bf6715fd2bd4bb4cc20
enddf0c5a150f4b4bf6715fd2bd4bb4cc20:
;
case OpStringLen:
// match: (StringLen (StringMake _ len))

2
src/cmd/compile/internal/ssa/schedule_test.go
View File

@ -7,7 +7,7 @@ package ssa
import "testing"
func TestSchedule(t *testing.T) {
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
cases := []fun{
Fun(c, "entry",
Bloc("entry",

2
src/cmd/compile/internal/ssa/shift_test.go
View File

@ -9,7 +9,7 @@ import (
)
func TestShiftConstAMD64(t *testing.T) {
c := NewConfig("amd64", DummyFrontend{t})
c := testConfig(t)
fun := makeConstShiftFunc(c, 18, OpLsh64x64, TypeUInt64)
checkOpcodeCounts(t, fun.f, map[Op]int{OpAMD64SHLQconst: 1, OpAMD64CMPQconst: 0, OpAMD64ANDQconst: 0})
fun = makeConstShiftFunc(c, 66, OpLsh64x64, TypeUInt64)

67
src/cmd/compile/internal/ssa/type.go
View File

@ -29,39 +29,29 @@ type Type interface {
Equal(Type) bool
}
// Stub implementation for now, until we are completely using ../gc:Type
type TypeImpl struct {
Size_ int64
Align int64
Boolean bool
Integer bool
Signed bool
Float bool
Ptr bool
string bool
// Special compiler-only types.
type CompilerType struct {
Name string
Memory bool
Flags bool
Name string
}
func (t *TypeImpl) Size() int64 { return t.Size_ }
func (t *TypeImpl) Alignment() int64 { return t.Align }
func (t *TypeImpl) IsBoolean() bool { return t.Boolean }
func (t *TypeImpl) IsInteger() bool { return t.Integer }
func (t *TypeImpl) IsSigned() bool { return t.Signed }
func (t *TypeImpl) IsFloat() bool { return t.Float }
func (t *TypeImpl) IsPtr() bool { return t.Ptr }
func (t *TypeImpl) IsString() bool { return t.string }
func (t *TypeImpl) IsMemory() bool { return t.Memory }
func (t *TypeImpl) IsFlags() bool { return t.Flags }
func (t *TypeImpl) String() string { return t.Name }
func (t *TypeImpl) Elem() Type { panic("not implemented"); return nil }
func (t *TypeImpl) PtrTo() Type { panic("not implemented"); return nil }
func (t *CompilerType) Size() int64 { return 0 }
func (t *CompilerType) Alignment() int64 { return 0 }
func (t *CompilerType) IsBoolean() bool { return false }
func (t *CompilerType) IsInteger() bool { return false }
func (t *CompilerType) IsSigned() bool { return false }
func (t *CompilerType) IsFloat() bool { return false }
func (t *CompilerType) IsPtr() bool { return false }
func (t *CompilerType) IsString() bool { return false }
func (t *CompilerType) IsMemory() bool { return t.Memory }
func (t *CompilerType) IsFlags() bool { return t.Flags }
func (t *CompilerType) String() string { return t.Name }
func (t *CompilerType) Elem() Type { panic("not implemented") }
func (t *CompilerType) PtrTo() Type { panic("not implemented") }
func (t *TypeImpl) Equal(u Type) bool {
x, ok := u.(*TypeImpl)
func (t *CompilerType) Equal(u Type) bool {
x, ok := u.(*CompilerType)
if !ok {
return false
}
@ -69,22 +59,7 @@ func (t *TypeImpl) Equal(u Type) bool {
}
var (
// shortcuts for commonly used basic types
TypeInt8 = &TypeImpl{Size_: 1, Align: 1, Integer: true, Signed: true, Name: "int8"}
TypeInt16 = &TypeImpl{Size_: 2, Align: 2, Integer: true, Signed: true, Name: "int16"}
TypeInt32 = &TypeImpl{Size_: 4, Align: 4, Integer: true, Signed: true, Name: "int32"}
TypeInt64 = &TypeImpl{Size_: 8, Align: 8, Integer: true, Signed: true, Name: "int64"}
TypeUInt8 = &TypeImpl{Size_: 1, Align: 1, Integer: true, Name: "uint8"}
TypeUInt16 = &TypeImpl{Size_: 2, Align: 2, Integer: true, Name: "uint16"}
TypeUInt32 = &TypeImpl{Size_: 4, Align: 4, Integer: true, Name: "uint32"}
TypeUInt64 = &TypeImpl{Size_: 8, Align: 8, Integer: true, Name: "uint64"}
TypeBool = &TypeImpl{Size_: 1, Align: 1, Boolean: true, Name: "bool"}
//TypeString = types.Typ[types.String]
TypeBytePtr = &TypeImpl{Size_: 8, Align: 8, Ptr: true, Name: "*byte"}
TypeInvalid = &TypeImpl{Name: "invalid"}
// Additional compiler-only types go here.
TypeMem = &TypeImpl{Memory: true, Name: "mem"}
TypeFlags = &TypeImpl{Flags: true, Name: "flags"}
TypeInvalid = &CompilerType{Name: "invalid"}
TypeMem = &CompilerType{Name: "mem", Memory: true}
TypeFlags = &CompilerType{Name: "flags", Flags: true}
)

55
src/cmd/compile/internal/ssa/type_test.go Normal file
View File

@ -0,0 +1,55 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package ssa
// Stub implementation used for testing.
type TypeImpl struct {
Size_ int64
Align int64
Boolean bool
Integer bool
Signed bool
Float bool
Ptr bool
string bool
Name string
}
func (t *TypeImpl) Size() int64 { return t.Size_ }
func (t *TypeImpl) Alignment() int64 { return t.Align }
func (t *TypeImpl) IsBoolean() bool { return t.Boolean }
func (t *TypeImpl) IsInteger() bool { return t.Integer }
func (t *TypeImpl) IsSigned() bool { return t.Signed }
func (t *TypeImpl) IsFloat() bool { return t.Float }
func (t *TypeImpl) IsPtr() bool { return t.Ptr }
func (t *TypeImpl) IsString() bool { return t.string }
func (t *TypeImpl) IsMemory() bool { return false }
func (t *TypeImpl) IsFlags() bool { return false }
func (t *TypeImpl) String() string { return t.Name }
func (t *TypeImpl) Elem() Type { panic("not implemented") }
func (t *TypeImpl) PtrTo() Type { panic("not implemented") }
func (t *TypeImpl) Equal(u Type) bool {
x, ok := u.(*TypeImpl)
if !ok {
return false
}
return x == t
}
var (
// shortcuts for commonly used basic types
TypeInt8 = &TypeImpl{Size_: 1, Align: 1, Integer: true, Signed: true, Name: "int8"}
TypeInt16 = &TypeImpl{Size_: 2, Align: 2, Integer: true, Signed: true, Name: "int16"}
TypeInt32 = &TypeImpl{Size_: 4, Align: 4, Integer: true, Signed: true, Name: "int32"}
TypeInt64 = &TypeImpl{Size_: 8, Align: 8, Integer: true, Signed: true, Name: "int64"}
TypeUInt8 = &TypeImpl{Size_: 1, Align: 1, Integer: true, Name: "uint8"}
TypeUInt16 = &TypeImpl{Size_: 2, Align: 2, Integer: true, Name: "uint16"}
TypeUInt32 = &TypeImpl{Size_: 4, Align: 4, Integer: true, Name: "uint32"}
TypeUInt64 = &TypeImpl{Size_: 8, Align: 8, Integer: true, Name: "uint64"}
TypeBool = &TypeImpl{Size_: 1, Align: 1, Boolean: true, Name: "bool"}
TypeBytePtr = &TypeImpl{Size_: 8, Align: 8, Ptr: true, Name: "*byte"}
)