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Merge pull request #227 from xushiwei/q

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abiType: support pointer
This commit is contained in:
xushiwei
2024-05-24 22:58:16 +08:00
committed by GitHub
parent f226177bca d1a6d29fdd
commit 0283a42273
8 changed files with 201 additions and 106 deletions
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9
cl/_testgo/strucintf/in.go
View File

@@ -1,20 +1,19 @@
package main
import (
"github.com/goplus/llgo/c"
"github.com/goplus/llgo/cl/internal/foo"
)
func main() {
bar := foo.Bar()
if x, ok := bar.(struct{ V int }); ok {
c.Printf(c.Str("%d\n"), x.V)
println(x.V)
} else {
c.Printf(c.Str("Bar: not ok\n"))
println("Bar: not ok")
}
if x, ok := foo.F().(struct{ v int }); ok {
c.Printf(c.Str("%d\n"), x.v)
println(x.v)
} else {
c.Printf(c.Str("F: not ok\n"))
println("F: not ok")
}
}

122
cl/_testgo/strucintf/out.ll
View File

@@ -11,17 +11,15 @@ source_filename = "main"
@__llgo_argc = global ptr null
@__llgo_argv = global ptr null
@"_llgo_struct$K-dZ9QotZfVPz2a0YdRa9vmZUuDXPTqZOlMShKEDJtk" = linkonce global ptr null
@0 = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
@"main.struct$MYpsoM99ZwFY087IpUOkIw1zjBA_sgFXVodmn1m-G88" = global ptr null
@1 = private unnamed_addr constant [13 x i8] c"Bar: not ok\0A\00", align 1
@2 = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
@3 = private unnamed_addr constant [11 x i8] c"F: not ok\0A\00", align 1
@4 = private unnamed_addr constant [2 x i8] c"V\00", align 1
@5 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
@6 = private unnamed_addr constant [5 x i8] c"main\00", align 1
@7 = private unnamed_addr constant [2 x i8] c"v\00", align 1
@8 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
@9 = private unnamed_addr constant [5 x i8] c"main\00", align 1
@0 = private unnamed_addr constant [12 x i8] c"Bar: not ok\00", align 1
@1 = private unnamed_addr constant [10 x i8] c"F: not ok\00", align 1
@2 = private unnamed_addr constant [2 x i8] c"V\00", align 1
@3 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
@4 = private unnamed_addr constant [5 x i8] c"main\00", align 1
@5 = private unnamed_addr constant [2 x i8] c"v\00", align 1
@6 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
@7 = private unnamed_addr constant [5 x i8] c"main\00", align 1
define void @main.init() {
_llgo_0:
@@ -77,55 +75,71 @@ _llgo_0:
_llgo_1: ; preds = %_llgo_0
%24 = getelementptr inbounds { i64 }, ptr %4, i32 0, i32 0
%25 = load i64, ptr %24, align 4
%26 = call i32 (ptr, ...) @printf(ptr @0, i64 %25)
call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %25)
call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
br label %_llgo_2
_llgo_2: ; preds = %_llgo_3, %_llgo_1
%27 = alloca { i64 }, align 8
%28 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %27, i64 8)
%29 = call %"github.com/goplus/llgo/internal/runtime.eface" @"github.com/goplus/llgo/cl/internal/foo.F"()
%30 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %29, 0
%31 = load ptr, ptr @"main.struct$MYpsoM99ZwFY087IpUOkIw1zjBA_sgFXVodmn1m-G88", align 8
%32 = icmp eq ptr %30, %31
%33 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %29, 1
%34 = ptrtoint ptr %33 to i64
%35 = alloca { i64 }, align 8
%36 = getelementptr inbounds { i64 }, ptr %35, i32 0, i32 0
store i64 %34, ptr %36, align 4
%37 = load { i64 }, ptr %35, align 4
%38 = alloca { { i64 }, i1 }, align 8
%39 = getelementptr inbounds { { i64 }, i1 }, ptr %38, i32 0, i32 0
store { i64 } %37, ptr %39, align 4
%40 = getelementptr inbounds { { i64 }, i1 }, ptr %38, i32 0, i32 1
store i1 true, ptr %40, align 1
%41 = load { { i64 }, i1 }, ptr %38, align 4
%42 = alloca { { i64 }, i1 }, align 8
%43 = getelementptr inbounds { { i64 }, i1 }, ptr %42, i32 0, i32 0
store { i64 } zeroinitializer, ptr %43, align 4
%44 = getelementptr inbounds { { i64 }, i1 }, ptr %42, i32 0, i32 1
store i1 false, ptr %44, align 1
%45 = load { { i64 }, i1 }, ptr %42, align 4
%46 = select i1 %32, { { i64 }, i1 } %41, { { i64 }, i1 } %45
%47 = extractvalue { { i64 }, i1 } %46, 0
store { i64 } %47, ptr %28, align 4
%48 = extractvalue { { i64 }, i1 } %46, 1
br i1 %48, label %_llgo_4, label %_llgo_6
%26 = alloca { i64 }, align 8
%27 = call ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr %26, i64 8)
%28 = call %"github.com/goplus/llgo/internal/runtime.eface" @"github.com/goplus/llgo/cl/internal/foo.F"()
%29 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %28, 0
%30 = load ptr, ptr @"main.struct$MYpsoM99ZwFY087IpUOkIw1zjBA_sgFXVodmn1m-G88", align 8
%31 = icmp eq ptr %29, %30
%32 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %28, 1
%33 = ptrtoint ptr %32 to i64
%34 = alloca { i64 }, align 8
%35 = getelementptr inbounds { i64 }, ptr %34, i32 0, i32 0
store i64 %33, ptr %35, align 4
%36 = load { i64 }, ptr %34, align 4
%37 = alloca { { i64 }, i1 }, align 8
%38 = getelementptr inbounds { { i64 }, i1 }, ptr %37, i32 0, i32 0
store { i64 } %36, ptr %38, align 4
%39 = getelementptr inbounds { { i64 }, i1 }, ptr %37, i32 0, i32 1
store i1 true, ptr %39, align 1
%40 = load { { i64 }, i1 }, ptr %37, align 4
%41 = alloca { { i64 }, i1 }, align 8
%42 = getelementptr inbounds { { i64 }, i1 }, ptr %41, i32 0, i32 0
store { i64 } zeroinitializer, ptr %42, align 4
%43 = getelementptr inbounds { { i64 }, i1 }, ptr %41, i32 0, i32 1
store i1 false, ptr %43, align 1
%44 = load { { i64 }, i1 }, ptr %41, align 4
%45 = select i1 %31, { { i64 }, i1 } %40, { { i64 }, i1 } %44
%46 = extractvalue { { i64 }, i1 } %45, 0
store { i64 } %46, ptr %27, align 4
%47 = extractvalue { { i64 }, i1 } %45, 1
br i1 %47, label %_llgo_4, label %_llgo_6
_llgo_3: ; preds = %_llgo_0
%49 = call i32 (ptr, ...) @printf(ptr @1)
%48 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
%49 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %48, i32 0, i32 0
store ptr @0, ptr %49, align 8
%50 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %48, i32 0, i32 1
store i64 11, ptr %50, align 4
%51 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %48, align 8
call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %51)
call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
br label %_llgo_2
_llgo_4: ; preds = %_llgo_2
%50 = getelementptr inbounds { i64 }, ptr %28, i32 0, i32 0
%51 = load i64, ptr %50, align 4
%52 = call i32 (ptr, ...) @printf(ptr @2, i64 %51)
%52 = getelementptr inbounds { i64 }, ptr %27, i32 0, i32 0
%53 = load i64, ptr %52, align 4
call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %53)
call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
br label %_llgo_5
_llgo_5: ; preds = %_llgo_6, %_llgo_4
ret i32 0
_llgo_6: ; preds = %_llgo_2
%53 = call i32 (ptr, ...) @printf(ptr @3)
%54 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
%55 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %54, i32 0, i32 0
store ptr @1, ptr %55, align 8
%56 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %54, i32 0, i32 1
store i64 9, ptr %56, align 4
%57 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %54, align 8
call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %57)
call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
br label %_llgo_5
}
@@ -137,10 +151,14 @@ declare %"github.com/goplus/llgo/internal/runtime.eface" @"github.com/goplus/llg
declare ptr @"github.com/goplus/llgo/internal/runtime.Zeroinit"(ptr, i64)
declare i32 @printf(ptr, ...)
declare void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64)
declare void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8)
declare %"github.com/goplus/llgo/internal/runtime.eface" @"github.com/goplus/llgo/cl/internal/foo.F"()
declare void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String")
define void @"main.init$abi"() {
_llgo_0:
%0 = load ptr, ptr @"_llgo_struct$K-dZ9QotZfVPz2a0YdRa9vmZUuDXPTqZOlMShKEDJtk", align 8
@@ -150,21 +168,21 @@ _llgo_0:
_llgo_1: ; preds = %_llgo_0
%2 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
%3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i32 0, i32 0
store ptr @4, ptr %3, align 8
store ptr @2, ptr %3, align 8
%4 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %2, i32 0, i32 1
store i64 1, ptr %4, align 4
%5 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %2, align 8
%6 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
%7 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
%8 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %7, i32 0, i32 0
store ptr @5, ptr %8, align 8
store ptr @3, ptr %8, align 8
%9 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %7, i32 0, i32 1
store i64 0, ptr %9, align 4
%10 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %7, align 8
%11 = call %"github.com/goplus/llgo/internal/abi.StructField" @"github.com/goplus/llgo/internal/runtime.StructField"(%"github.com/goplus/llgo/internal/runtime.String" %5, ptr %6, i64 0, %"github.com/goplus/llgo/internal/runtime.String" %10, i1 true, i1 false)
%12 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
%13 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %12, i32 0, i32 0
store ptr @6, ptr %13, align 8
store ptr @4, ptr %13, align 8
%14 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %12, i32 0, i32 1
store i64 4, ptr %14, align 4
%15 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %12, align 8
@@ -186,21 +204,21 @@ _llgo_1: ; preds = %_llgo_0
_llgo_2: ; preds = %_llgo_1, %_llgo_0
%24 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
%25 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %24, i32 0, i32 0
store ptr @7, ptr %25, align 8
store ptr @5, ptr %25, align 8
%26 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %24, i32 0, i32 1
store i64 1, ptr %26, align 4
%27 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %24, align 8
%28 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
%29 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
%30 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %29, i32 0, i32 0
store ptr @8, ptr %30, align 8
store ptr @6, ptr %30, align 8
%31 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %29, i32 0, i32 1
store i64 0, ptr %31, align 4
%32 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %29, align 8
%33 = call %"github.com/goplus/llgo/internal/abi.StructField" @"github.com/goplus/llgo/internal/runtime.StructField"(%"github.com/goplus/llgo/internal/runtime.String" %27, ptr %28, i64 0, %"github.com/goplus/llgo/internal/runtime.String" %32, i1 false, i1 false)
%34 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
%35 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %34, i32 0, i32 0
store ptr @9, ptr %35, align 8
store ptr @7, ptr %35, align 8
%36 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %34, i32 0, i32 1
store i64 4, ptr %36, align 4
%37 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %34, align 8

6
cl/_testrt/any/in.go
View File

@@ -4,10 +4,14 @@ import (
"github.com/goplus/llgo/internal/runtime/c"
)
func hi(a any) *c.Char {
return a.(*c.Char)
}
func incVal(a any) int {
return a.(int) + 1
}
func main() {
c.Printf(c.Str("Hello %d\n"), incVal(100))
c.Printf(c.Str("%s %d\n"), hi(c.Str("Hello")), incVal(100))
}

68
cl/_testrt/any/out.ll
View File

@@ -5,10 +5,35 @@ source_filename = "main"
%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
@"main.init$guard" = global ptr null
@"*_llgo_int8" = linkonce global ptr null
@0 = private unnamed_addr constant [22 x i8] c"type assertion failed\00", align 1
@1 = private unnamed_addr constant [22 x i8] c"type assertion failed\00", align 1
@__llgo_argc = global ptr null
@__llgo_argv = global ptr null
@1 = private unnamed_addr constant [10 x i8] c"Hello %d\0A\00", align 1
@2 = private unnamed_addr constant [7 x i8] c"%s %d\0A\00", align 1
@3 = private unnamed_addr constant [6 x i8] c"Hello\00", align 1
define ptr @main.hi(%"github.com/goplus/llgo/internal/runtime.eface" %0) {
_llgo_0:
%1 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %0, 0
%2 = load ptr, ptr @"*_llgo_int8", align 8
%3 = icmp eq ptr %1, %2
br i1 %3, label %_llgo_1, label %_llgo_2
_llgo_1: ; preds = %_llgo_0
%4 = extractvalue %"github.com/goplus/llgo/internal/runtime.eface" %0, 1
ret ptr %4
_llgo_2: ; preds = %_llgo_0
%5 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
%6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %5, i32 0, i32 0
store ptr @0, ptr %6, align 8
%7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %5, i32 0, i32 1
store i64 21, ptr %7, align 4
%8 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %5, align 8
call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.String" %8)
unreachable
}
define i64 @main.incVal(%"github.com/goplus/llgo/internal/runtime.eface" %0) {
_llgo_0:
@@ -26,7 +51,7 @@ _llgo_1: ; preds = %_llgo_0
_llgo_2: ; preds = %_llgo_0
%7 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
%8 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %7, i32 0, i32 0
store ptr @0, ptr %8, align 8
store ptr @1, ptr %8, align 8
%9 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %7, i32 0, i32 1
store i64 21, ptr %9, align 4
%10 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %7, align 8
@@ -41,6 +66,7 @@ _llgo_0:
_llgo_1: ; preds = %_llgo_0
store i1 true, ptr @"main.init$guard", align 1
call void @"main.init$abi"()
br label %_llgo_2
_llgo_2: ; preds = %_llgo_1, %_llgo_0
@@ -53,22 +79,48 @@ _llgo_0:
store ptr %1, ptr @__llgo_argv, align 8
call void @"github.com/goplus/llgo/internal/runtime.init"()
call void @main.init()
%2 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
%2 = load ptr, ptr @"*_llgo_int8", align 8
%3 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
%4 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %3, i32 0, i32 0
store ptr %2, ptr %4, align 8
%5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %3, i32 0, i32 1
store ptr inttoptr (i64 100 to ptr), ptr %5, align 8
store ptr @3, ptr %5, align 8
%6 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %3, align 8
%7 = call i64 @main.incVal(%"github.com/goplus/llgo/internal/runtime.eface" %6)
%8 = call i32 (ptr, ...) @printf(ptr @1, i64 %7)
%7 = call ptr @main.hi(%"github.com/goplus/llgo/internal/runtime.eface" %6)
%8 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
%9 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
%10 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %9, i32 0, i32 0
store ptr %8, ptr %10, align 8
%11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %9, i32 0, i32 1
store ptr inttoptr (i64 100 to ptr), ptr %11, align 8
%12 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %9, align 8
%13 = call i64 @main.incVal(%"github.com/goplus/llgo/internal/runtime.eface" %12)
%14 = call i32 (ptr, ...) @printf(ptr @2, ptr %7, i64 %13)
ret i32 0
}
declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
declare void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface")
declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
declare void @"github.com/goplus/llgo/internal/runtime.init"()
declare i32 @printf(ptr, ...)
define void @"main.init$abi"() {
_llgo_0:
%0 = load ptr, ptr @"*_llgo_int8", align 8
%1 = icmp eq ptr %0, null
br i1 %1, label %_llgo_1, label %_llgo_2
_llgo_1: ; preds = %_llgo_0
%2 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 3)
%3 = call ptr @"github.com/goplus/llgo/internal/runtime.Pointer"(ptr %2)
store ptr %3, ptr @"*_llgo_int8", align 8
br label %_llgo_2
_llgo_2: ; preds = %_llgo_1, %_llgo_0
ret void
}
declare ptr @"github.com/goplus/llgo/internal/runtime.Pointer"(ptr)

BIN
internal/runtime/llgo_autogen.lla
View File

Binary file not shown.

13
internal/runtime/z_type.go
View File

@@ -111,4 +111,17 @@ func Struct(size uintptr, pkgPath string, fields ...abi.StructField) *Type {
return &ret.Type
}
// Pointer returns a pointer type.
func Pointer(elem *Type) *Type {
ret := &abi.PtrType{
Type: Type{
Size_: unsafe.Sizeof(uintptr(0)),
Hash: uint32(abi.Pointer), // TODO(xsw): hash
Kind_: uint8(abi.Pointer),
},
Elem: elem,
}
return &ret.Type
}
// -----------------------------------------------------------------------------

87
ssa/interface.go
View File

@@ -40,43 +40,25 @@ func (b Builder) abiBasic(t *types.Basic) Expr {
return b.InlineCall(b.Pkg.rtFunc("Basic"), b.Prog.Val(kind))
}
// abiStruct returns the abi type of the specified struct type.
func (b Builder) abiStruct(t *types.Struct) Expr {
pkg := b.Pkg
name, private := pkg.abi.StructName(t)
g := pkg.VarOf(name)
if g == nil {
prog := b.Prog
g = pkg.doNewVar(name, prog.AbiTypePtrPtr())
g.Init(prog.Null(g.Type))
pub := !private
if pub {
g.impl.SetLinkage(llvm.LinkOnceAnyLinkage)
}
pkg.abiini = append(pkg.abiini, func(param unsafe.Pointer) {
b := Builder(param)
expr := g.Expr
var blks []BasicBlock
if pub {
eq := b.BinOp(token.EQL, b.Load(expr), b.Prog.Null(expr.Type))
blks = b.Func.MakeBlocks(2)
b.If(eq, blks[0], blks[1])
b.SetBlockEx(blks[0], AtEnd, false)
}
tabi := b.structOf(t)
b.Store(expr, tabi)
if pub {
b.Jump(blks[1])
b.SetBlockEx(blks[1], AtEnd, false)
b.blk.last = blks[1].last
}
})
func (b Builder) abiTypeOf(t types.Type) Expr {
switch t := t.(type) {
case *types.Basic:
return b.abiBasic(t)
case *types.Pointer:
return b.abiPointerOf(t)
case *types.Struct:
return b.abiStructOf(t)
}
return b.Load(g.Expr)
panic("todo")
}
func (b Builder) abiPointerOf(t *types.Pointer) Expr {
elem := b.abiTypeOf(t.Elem())
return b.Call(b.Pkg.rtFunc("Pointer"), elem)
}
// func Struct(size uintptr, pkgPath string, fields []abi.StructField) *abi.Type
func (b Builder) structOf(t *types.Struct) Expr {
func (b Builder) abiStructOf(t *types.Struct) Expr {
pkg := b.Pkg
prog := b.Prog
n := t.NumFields()
@@ -106,14 +88,41 @@ func (b Builder) structField(sfAbi Expr, prog Program, f *types.Var, offset uint
}
// abiType returns the abi type of the specified type.
func (b Builder) abiType(raw types.Type) Expr {
switch tx := raw.(type) {
case *types.Basic:
func (b Builder) abiType(t types.Type) Expr {
if tx, ok := t.(*types.Basic); ok {
return b.abiBasic(tx)
case *types.Struct:
return b.abiStruct(tx)
}
panic("todo")
pkg := b.Pkg
name, private := pkg.abi.TypeName(t)
g := pkg.VarOf(name)
if g == nil {
prog := b.Prog
g = pkg.doNewVar(name, prog.AbiTypePtrPtr())
g.Init(prog.Null(g.Type))
pub := !private
if pub {
g.impl.SetLinkage(llvm.LinkOnceAnyLinkage)
}
pkg.abiini = append(pkg.abiini, func(param unsafe.Pointer) {
b := Builder(param)
expr := g.Expr
var blks []BasicBlock
if pub {
eq := b.BinOp(token.EQL, b.Load(expr), b.Prog.Null(expr.Type))
blks = b.Func.MakeBlocks(2)
b.If(eq, blks[0], blks[1])
b.SetBlockEx(blks[0], AtEnd, false)
}
tabi := b.abiTypeOf(t)
b.Store(expr, tabi)
if pub {
b.Jump(blks[1])
b.SetBlockEx(blks[1], AtEnd, false)
b.blk.last = blks[1].last
}
})
}
return b.Load(g.Expr)
}
// unsafeEface(t *abi.Type, data unsafe.Pointer) Eface

2
ssa/stmt_builder.go
View File

@@ -29,7 +29,7 @@ import (
// -----------------------------------------------------------------------------
type aBasicBlock struct {
first llvm.BasicBlock
first llvm.BasicBlock // a Go SSA basic block may have multiple LLVM basic blocks
last llvm.BasicBlock
fn Function
idx int