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https://github.com/goplus/llgo.git
synced 2025-09-26 19:51:21 +08:00
ssa: impl builtin alignof offsetof
This commit is contained in:
visualfc
38
cl/_testrt/tpunsafe/in.go
Normal file
38
cl/_testrt/tpunsafe/in.go
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@@ -0,0 +1,38 @@
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package main
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import (
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"unsafe"
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)
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type N[T any] struct {
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n1 T
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n2 T
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}
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type M[T any] struct {
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m0 T
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m1 int32
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m2 N[T]
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}
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func (m *M[T]) check(align, offset1, offset2 uintptr) {
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if v := unsafe.Alignof(m.m2); v != align {
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println("have", v, "want", align)
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panic("unsafe.Alignof error")
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}
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if v := unsafe.Offsetof(m.m2); v != offset1 {
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println("have", v, "want", offset1)
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panic("unsafe.Offsetof error")
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}
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if v := unsafe.Offsetof(m.m2.n2); v != offset2 {
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println("have", v, "want", offset2)
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panic("unsafe.Offsetof error")
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}
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}
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func main() {
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m1 := M[bool]{}
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m1.check(1, 8, 1)
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m2 := M[int64]{}
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m2.check(8, 16, 8)
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}
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220
cl/_testrt/tpunsafe/out.ll
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220
cl/_testrt/tpunsafe/out.ll
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@@ -0,0 +1,220 @@
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; ModuleID = 'github.com/goplus/llgo/cl/_testrt/tpunsafe'
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source_filename = "github.com/goplus/llgo/cl/_testrt/tpunsafe"
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%"github.com/goplus/llgo/cl/_testrt/tpunsafe.M[bool]" = type { i1, i32, %"github.com/goplus/llgo/cl/_testrt/tpunsafe.N[bool]" }
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%"github.com/goplus/llgo/cl/_testrt/tpunsafe.N[bool]" = type { i1, i1 }
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%"github.com/goplus/llgo/runtime/internal/runtime.String" = type { ptr, i64 }
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%"github.com/goplus/llgo/runtime/internal/runtime.eface" = type { ptr, ptr }
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%"github.com/goplus/llgo/cl/_testrt/tpunsafe.M[int64]" = type { i64, i32, %"github.com/goplus/llgo/cl/_testrt/tpunsafe.N[int64]" }
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%"github.com/goplus/llgo/cl/_testrt/tpunsafe.N[int64]" = type { i64, i64 }
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@"github.com/goplus/llgo/cl/_testrt/tpunsafe.init$guard" = global i1 false, align 1
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@0 = private unnamed_addr constant [4 x i8] c"have", align 1
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@1 = private unnamed_addr constant [4 x i8] c"want", align 1
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@2 = private unnamed_addr constant [20 x i8] c"unsafe.Alignof error", align 1
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@_llgo_string = linkonce global ptr null, align 8
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@3 = private unnamed_addr constant [21 x i8] c"unsafe.Offsetof error", align 1
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define void @"github.com/goplus/llgo/cl/_testrt/tpunsafe.init"() {
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_llgo_0:
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%0 = load i1, ptr @"github.com/goplus/llgo/cl/_testrt/tpunsafe.init$guard", align 1
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br i1 %0, label %_llgo_2, label %_llgo_1
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_llgo_1: ; preds = %_llgo_0
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store i1 true, ptr @"github.com/goplus/llgo/cl/_testrt/tpunsafe.init$guard", align 1
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call void @"github.com/goplus/llgo/cl/_testrt/tpunsafe.init$after"()
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br label %_llgo_2
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_llgo_2: ; preds = %_llgo_1, %_llgo_0
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ret void
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}
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define void @"github.com/goplus/llgo/cl/_testrt/tpunsafe.main"() {
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_llgo_0:
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%0 = call ptr @"github.com/goplus/llgo/runtime/internal/runtime.AllocZ"(i64 12)
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call void @"github.com/goplus/llgo/cl/_testrt/tpunsafe.(*M[bool]).check"(ptr %0, i64 1, i64 8, i64 1)
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%1 = call ptr @"github.com/goplus/llgo/runtime/internal/runtime.AllocZ"(i64 32)
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call void @"github.com/goplus/llgo/cl/_testrt/tpunsafe.(*M[int64]).check"(ptr %1, i64 8, i64 16, i64 8)
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ret void
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}
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declare ptr @"github.com/goplus/llgo/runtime/internal/runtime.AllocZ"(i64)
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define linkonce void @"github.com/goplus/llgo/cl/_testrt/tpunsafe.(*M[bool]).check"(ptr %0, i64 %1, i64 %2, i64 %3) {
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_llgo_0:
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%4 = getelementptr inbounds %"github.com/goplus/llgo/cl/_testrt/tpunsafe.M[bool]", ptr %0, i32 0, i32 2
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%5 = load %"github.com/goplus/llgo/cl/_testrt/tpunsafe.N[bool]", ptr %4, align 1
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%6 = icmp ne i64 1, %1
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br i1 %6, label %_llgo_1, label %_llgo_2
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_llgo_1: ; preds = %_llgo_0
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintString"(%"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @0, i64 4 })
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintInt"(i64 1)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintString"(%"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @1, i64 4 })
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintUint"(i64 %1)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 10)
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%7 = load ptr, ptr @_llgo_string, align 8
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%8 = call ptr @"github.com/goplus/llgo/runtime/internal/runtime.AllocU"(i64 16)
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store %"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @2, i64 20 }, ptr %8, align 8
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%9 = insertvalue %"github.com/goplus/llgo/runtime/internal/runtime.eface" undef, ptr %7, 0
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%10 = insertvalue %"github.com/goplus/llgo/runtime/internal/runtime.eface" %9, ptr %8, 1
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call void @"github.com/goplus/llgo/runtime/internal/runtime.Panic"(%"github.com/goplus/llgo/runtime/internal/runtime.eface" %10)
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unreachable
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_llgo_2: ; preds = %_llgo_0
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%11 = getelementptr inbounds %"github.com/goplus/llgo/cl/_testrt/tpunsafe.M[bool]", ptr %0, i32 0, i32 2
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%12 = load %"github.com/goplus/llgo/cl/_testrt/tpunsafe.N[bool]", ptr %11, align 1
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%13 = icmp ne i64 8, %2
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br i1 %13, label %_llgo_3, label %_llgo_4
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_llgo_3: ; preds = %_llgo_2
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintString"(%"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @0, i64 4 })
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintInt"(i64 8)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintString"(%"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @1, i64 4 })
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintUint"(i64 %2)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 10)
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%14 = load ptr, ptr @_llgo_string, align 8
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%15 = call ptr @"github.com/goplus/llgo/runtime/internal/runtime.AllocU"(i64 16)
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store %"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @3, i64 21 }, ptr %15, align 8
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%16 = insertvalue %"github.com/goplus/llgo/runtime/internal/runtime.eface" undef, ptr %14, 0
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%17 = insertvalue %"github.com/goplus/llgo/runtime/internal/runtime.eface" %16, ptr %15, 1
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call void @"github.com/goplus/llgo/runtime/internal/runtime.Panic"(%"github.com/goplus/llgo/runtime/internal/runtime.eface" %17)
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unreachable
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_llgo_4: ; preds = %_llgo_2
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%18 = getelementptr inbounds %"github.com/goplus/llgo/cl/_testrt/tpunsafe.M[bool]", ptr %0, i32 0, i32 2
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%19 = getelementptr inbounds %"github.com/goplus/llgo/cl/_testrt/tpunsafe.N[bool]", ptr %18, i32 0, i32 1
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%20 = load i1, ptr %19, align 1
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%21 = icmp ne i64 1, %3
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br i1 %21, label %_llgo_5, label %_llgo_6
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_llgo_5: ; preds = %_llgo_4
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintString"(%"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @0, i64 4 })
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintInt"(i64 1)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintString"(%"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @1, i64 4 })
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintUint"(i64 %3)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 10)
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%22 = load ptr, ptr @_llgo_string, align 8
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%23 = call ptr @"github.com/goplus/llgo/runtime/internal/runtime.AllocU"(i64 16)
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store %"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @3, i64 21 }, ptr %23, align 8
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%24 = insertvalue %"github.com/goplus/llgo/runtime/internal/runtime.eface" undef, ptr %22, 0
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%25 = insertvalue %"github.com/goplus/llgo/runtime/internal/runtime.eface" %24, ptr %23, 1
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call void @"github.com/goplus/llgo/runtime/internal/runtime.Panic"(%"github.com/goplus/llgo/runtime/internal/runtime.eface" %25)
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unreachable
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_llgo_6: ; preds = %_llgo_4
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ret void
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}
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define linkonce void @"github.com/goplus/llgo/cl/_testrt/tpunsafe.(*M[int64]).check"(ptr %0, i64 %1, i64 %2, i64 %3) {
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_llgo_0:
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%4 = getelementptr inbounds %"github.com/goplus/llgo/cl/_testrt/tpunsafe.M[int64]", ptr %0, i32 0, i32 2
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%5 = load %"github.com/goplus/llgo/cl/_testrt/tpunsafe.N[int64]", ptr %4, align 4
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%6 = icmp ne i64 8, %1
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br i1 %6, label %_llgo_1, label %_llgo_2
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_llgo_1: ; preds = %_llgo_0
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintString"(%"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @0, i64 4 })
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintInt"(i64 8)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintString"(%"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @1, i64 4 })
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintUint"(i64 %1)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 10)
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%7 = load ptr, ptr @_llgo_string, align 8
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%8 = call ptr @"github.com/goplus/llgo/runtime/internal/runtime.AllocU"(i64 16)
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store %"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @2, i64 20 }, ptr %8, align 8
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%9 = insertvalue %"github.com/goplus/llgo/runtime/internal/runtime.eface" undef, ptr %7, 0
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%10 = insertvalue %"github.com/goplus/llgo/runtime/internal/runtime.eface" %9, ptr %8, 1
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call void @"github.com/goplus/llgo/runtime/internal/runtime.Panic"(%"github.com/goplus/llgo/runtime/internal/runtime.eface" %10)
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unreachable
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_llgo_2: ; preds = %_llgo_0
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%11 = getelementptr inbounds %"github.com/goplus/llgo/cl/_testrt/tpunsafe.M[int64]", ptr %0, i32 0, i32 2
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%12 = load %"github.com/goplus/llgo/cl/_testrt/tpunsafe.N[int64]", ptr %11, align 4
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%13 = icmp ne i64 16, %2
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br i1 %13, label %_llgo_3, label %_llgo_4
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_llgo_3: ; preds = %_llgo_2
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintString"(%"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @0, i64 4 })
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintInt"(i64 16)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintString"(%"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @1, i64 4 })
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintUint"(i64 %2)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 10)
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%14 = load ptr, ptr @_llgo_string, align 8
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%15 = call ptr @"github.com/goplus/llgo/runtime/internal/runtime.AllocU"(i64 16)
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store %"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @3, i64 21 }, ptr %15, align 8
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%16 = insertvalue %"github.com/goplus/llgo/runtime/internal/runtime.eface" undef, ptr %14, 0
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%17 = insertvalue %"github.com/goplus/llgo/runtime/internal/runtime.eface" %16, ptr %15, 1
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call void @"github.com/goplus/llgo/runtime/internal/runtime.Panic"(%"github.com/goplus/llgo/runtime/internal/runtime.eface" %17)
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unreachable
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_llgo_4: ; preds = %_llgo_2
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%18 = getelementptr inbounds %"github.com/goplus/llgo/cl/_testrt/tpunsafe.M[int64]", ptr %0, i32 0, i32 2
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%19 = getelementptr inbounds %"github.com/goplus/llgo/cl/_testrt/tpunsafe.N[int64]", ptr %18, i32 0, i32 1
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%20 = load i64, ptr %19, align 4
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%21 = icmp ne i64 8, %3
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br i1 %21, label %_llgo_5, label %_llgo_6
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_llgo_5: ; preds = %_llgo_4
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintString"(%"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @0, i64 4 })
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintInt"(i64 8)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintString"(%"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @1, i64 4 })
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 32)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintUint"(i64 %3)
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call void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8 10)
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%22 = load ptr, ptr @_llgo_string, align 8
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%23 = call ptr @"github.com/goplus/llgo/runtime/internal/runtime.AllocU"(i64 16)
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store %"github.com/goplus/llgo/runtime/internal/runtime.String" { ptr @3, i64 21 }, ptr %23, align 8
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%24 = insertvalue %"github.com/goplus/llgo/runtime/internal/runtime.eface" undef, ptr %22, 0
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%25 = insertvalue %"github.com/goplus/llgo/runtime/internal/runtime.eface" %24, ptr %23, 1
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call void @"github.com/goplus/llgo/runtime/internal/runtime.Panic"(%"github.com/goplus/llgo/runtime/internal/runtime.eface" %25)
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unreachable
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_llgo_6: ; preds = %_llgo_4
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ret void
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}
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declare void @"github.com/goplus/llgo/runtime/internal/runtime.PrintString"(%"github.com/goplus/llgo/runtime/internal/runtime.String")
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declare void @"github.com/goplus/llgo/runtime/internal/runtime.PrintByte"(i8)
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declare void @"github.com/goplus/llgo/runtime/internal/runtime.PrintInt"(i64)
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declare void @"github.com/goplus/llgo/runtime/internal/runtime.PrintUint"(i64)
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define void @"github.com/goplus/llgo/cl/_testrt/tpunsafe.init$after"() {
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_llgo_0:
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%0 = load ptr, ptr @_llgo_string, align 8
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%1 = icmp eq ptr %0, null
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br i1 %1, label %_llgo_1, label %_llgo_2
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_llgo_1: ; preds = %_llgo_0
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%2 = call ptr @"github.com/goplus/llgo/runtime/internal/runtime.Basic"(i64 24)
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store ptr %2, ptr @_llgo_string, align 8
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br label %_llgo_2
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_llgo_2: ; preds = %_llgo_1, %_llgo_0
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ret void
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}
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declare ptr @"github.com/goplus/llgo/runtime/internal/runtime.Basic"(i64)
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declare ptr @"github.com/goplus/llgo/runtime/internal/runtime.AllocU"(i64)
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declare void @"github.com/goplus/llgo/runtime/internal/runtime.Panic"(%"github.com/goplus/llgo/runtime/internal/runtime.eface")
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16
ssa/expr.go
16
ssa/expr.go
@@ -1257,7 +1257,23 @@ func (b Builder) BuiltinCall(fn string, args ...Expr) (ret Expr) {
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case "Add":
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return b.Advance(args[0], args[1])
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case "Sizeof":
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// instance of generic function
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return b.Prog.Val(int(b.Prog.SizeOf(args[0].Type)))
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case "Alignof":
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// instance of generic function
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return b.Prog.Val(int(b.Prog.td.ABITypeAlignment(args[0].ll)))
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case "Offsetof":
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// instance of generic function
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if load := args[0].impl.IsALoadInst(); !load.IsNil() {
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if gep := load.Operand(0).IsAGetElementPtrInst(); !gep.IsNil() {
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typ := gep.GEPSourceElementType()
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offset := gep.Operand(2).IsAConstantInt()
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if typ.TypeKind() == llvm.StructTypeKind && !offset.IsNil() {
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return b.Prog.Val(int(b.Prog.td.ElementOffset(typ, int(offset.SExtValue()))))
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}
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}
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}
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panic("invalid argument for unsafe.Offsetof: must be a selector expression")
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}
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panic("todo: " + fn)
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}
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