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atomic Load/Store

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This commit is contained in:
xushiwei
2024-06-16 16:35:46 +08:00
parent fbd15a81b4
commit 340b5bd165
9 changed files with 236 additions and 156 deletions
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24
cl/_testlibc/atomic/in.go
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@@ -2,20 +2,24 @@ package main
import (
"github.com/goplus/llgo/c"
"github.com/goplus/llgo/c/sync"
"github.com/goplus/llgo/c/sync/atomic"
)
func main() {
var v int64 = 100
sync.FetchAndAdd(&v, 1)
c.Printf(c.Str("%ld\n"), v)
var v int64
sync.CompareAndXchg(&v, 100, 102)
c.Printf(c.Str("%ld\n"), v)
atomic.Store(&v, 100)
println("store:", atomic.Load(&v))
sync.CompareAndXchg(&v, 101, 102)
c.Printf(c.Str("%ld\n"), v)
atomic.Add(&v, 1)
c.Printf(c.Str("v: %ld\n"), v)
sync.FetchAndSub(&v, 1)
c.Printf(c.Str("%ld\n"), v)
atomic.CompareAndExchange(&v, 100, 102)
c.Printf(c.Str("v: %ld\n"), v)
atomic.CompareAndExchange(&v, 101, 102)
c.Printf(c.Str("v: %ld\n"), v)
atomic.Sub(&v, 1)
c.Printf(c.Str("v: %ld\n"), v)
}

54
cl/_testlibc/atomic/out.ll
View File

@@ -1,13 +1,16 @@
; ModuleID = 'main'
source_filename = "main"
%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
@"main.init$guard" = global i1 false, align 1
@__llgo_argc = global i32 0, align 4
@__llgo_argv = global ptr null, align 8
@0 = private unnamed_addr constant [5 x i8] c"%ld\0A\00", align 1
@1 = private unnamed_addr constant [5 x i8] c"%ld\0A\00", align 1
@2 = private unnamed_addr constant [5 x i8] c"%ld\0A\00", align 1
@3 = private unnamed_addr constant [5 x i8] c"%ld\0A\00", align 1
@0 = private unnamed_addr constant [6 x i8] c"store:", align 1
@1 = private unnamed_addr constant [8 x i8] c"v: %ld\0A\00", align 1
@2 = private unnamed_addr constant [8 x i8] c"v: %ld\0A\00", align 1
@3 = private unnamed_addr constant [8 x i8] c"v: %ld\0A\00", align 1
@4 = private unnamed_addr constant [8 x i8] c"v: %ld\0A\00", align 1
define void @main.init() {
_llgo_0:
@@ -29,19 +32,30 @@ _llgo_0:
call void @"github.com/goplus/llgo/internal/runtime.init"()
call void @main.init()
%2 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 8)
store i64 100, ptr %2, align 4
%3 = atomicrmw add ptr %2, i64 1 seq_cst, align 8
%4 = load i64, ptr %2, align 4
%5 = call i32 (ptr, ...) @printf(ptr @0, i64 %4)
%6 = cmpxchg ptr %2, i64 100, i64 102 seq_cst seq_cst, align 8
%7 = load i64, ptr %2, align 4
%8 = call i32 (ptr, ...) @printf(ptr @1, i64 %7)
%9 = cmpxchg ptr %2, i64 101, i64 102 seq_cst seq_cst, align 8
%10 = load i64, ptr %2, align 4
%11 = call i32 (ptr, ...) @printf(ptr @2, i64 %10)
%12 = atomicrmw sub ptr %2, i64 1 seq_cst, align 8
%13 = load i64, ptr %2, align 4
%14 = call i32 (ptr, ...) @printf(ptr @3, i64 %13)
store atomic i64 100, ptr %2 seq_cst, align 4
%3 = load atomic i64, ptr %2 seq_cst, align 4
%4 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
%5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 0
store ptr @0, ptr %5, align 8
%6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %4, i32 0, i32 1
store i64 6, ptr %6, align 4
%7 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %4, align 8
call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %7)
call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 32)
call void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64 %3)
call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
%8 = atomicrmw add ptr %2, i64 1 seq_cst, align 8
%9 = load i64, ptr %2, align 4
%10 = call i32 (ptr, ...) @printf(ptr @1, i64 %9)
%11 = cmpxchg ptr %2, i64 100, i64 102 seq_cst seq_cst, align 8
%12 = load i64, ptr %2, align 4
%13 = call i32 (ptr, ...) @printf(ptr @2, i64 %12)
%14 = cmpxchg ptr %2, i64 101, i64 102 seq_cst seq_cst, align 8
%15 = load i64, ptr %2, align 4
%16 = call i32 (ptr, ...) @printf(ptr @3, i64 %15)
%17 = atomicrmw sub ptr %2, i64 1 seq_cst, align 8
%18 = load i64, ptr %2, align 4
%19 = call i32 (ptr, ...) @printf(ptr @4, i64 %18)
ret i32 0
}
@@ -49,4 +63,10 @@ declare void @"github.com/goplus/llgo/internal/runtime.init"()
declare ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64)
declare void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String")
declare void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8)
declare void @"github.com/goplus/llgo/internal/runtime.PrintInt"(i64)
declare i32 @printf(ptr, ...)