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atomic demo

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This commit is contained in:
xushiwei
2024-06-16 16:39:55 +08:00
parent 340b5bd165
commit 5416e92dbf
2 changed files with 12 additions and 29 deletions
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2
cl/_testlibc/atomic/in.go
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@@ -9,7 +9,7 @@ func main() {
var v int64
atomic.Store(&v, 100)
println("store:", atomic.Load(&v))
c.Printf(c.Str("store: %ld\n"), atomic.Load(&v))
atomic.Add(&v, 1)
c.Printf(c.Str("v: %ld\n"), v)

39
cl/_testlibc/atomic/out.ll
View File

@@ -1,12 +1,10 @@
; 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 [6 x i8] c"store:", align 1
@0 = private unnamed_addr constant [12 x i8] c"store: %ld\0A\00", 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
@@ -34,28 +32,19 @@ _llgo_0:
%2 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 8)
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
%4 = call i32 (ptr, ...) @printf(ptr @0, i64 %3)
%5 = atomicrmw add ptr %2, i64 1 seq_cst, align 8
%6 = load i64, ptr %2, align 4
%7 = call i32 (ptr, ...) @printf(ptr @1, i64 %6)
%8 = cmpxchg ptr %2, i64 100, i64 102 seq_cst 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
%10 = call i32 (ptr, ...) @printf(ptr @2, i64 %9)
%11 = cmpxchg ptr %2, i64 101, 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
%13 = call i32 (ptr, ...) @printf(ptr @3, i64 %12)
%14 = atomicrmw sub ptr %2, i64 1 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)
%16 = call i32 (ptr, ...) @printf(ptr @4, i64 %15)
ret i32 0
}
@@ -63,10 +52,4 @@ 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, ...)