llgo/ssa: RunDefers
This commit is contained in:
xushiwei
@@ -1,7 +1,7 @@
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package main
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func f(s string) bool {
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return len(s) > 5
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return len(s) > 2
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}
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func fail() {
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@@ -11,9 +11,11 @@ func fail() {
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func main() {
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defer func() {
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println("hi")
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if e := recover(); e != nil {
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println(e.(string))
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}
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/*
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if e := recover(); e != nil {
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println(e.(string))
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}
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*/
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}()
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if s := "hello"; f(s) {
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defer println(s)
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@@ -0,0 +1,238 @@
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; ModuleID = 'main'
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source_filename = "main"
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%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
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%"github.com/goplus/llgo/internal/runtime.eface" = type { ptr, ptr }
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%"github.com/goplus/llgo/internal/runtime.Defer" = type { { ptr, ptr }, i64, ptr }
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@"main.init$guard" = global ptr null
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@0 = private unnamed_addr constant [6 x i8] c"error\00", align 1
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@_llgo_string = linkonce global ptr null
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@__llgo_argc = global ptr null
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@__llgo_argv = global ptr null
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@__llgo_defer = linkonce global ptr null
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@1 = private unnamed_addr constant [6 x i8] c"hello\00", align 1
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@2 = private unnamed_addr constant [6 x i8] c"hello\00", align 1
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@3 = private unnamed_addr constant [4 x i8] c"bye\00", align 1
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@4 = private unnamed_addr constant [6 x i8] c"world\00", align 1
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@5 = private unnamed_addr constant [3 x i8] c"hi\00", align 1
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define i1 @main.f(%"github.com/goplus/llgo/internal/runtime.String" %0) {
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_llgo_0:
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%1 = extractvalue %"github.com/goplus/llgo/internal/runtime.String" %0, 1
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%2 = icmp sgt i64 %1, 2
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ret i1 %2
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}
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define void @main.fail() {
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_llgo_0:
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%0 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
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%1 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %0, i32 0, i32 0
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store ptr @0, ptr %1, align 8
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%2 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %0, i32 0, i32 1
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store i64 5, ptr %2, align 4
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%3 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %0, align 8
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%4 = load ptr, ptr @_llgo_string, align 8
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%5 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 16)
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store %"github.com/goplus/llgo/internal/runtime.String" %3, ptr %5, align 8
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%6 = alloca %"github.com/goplus/llgo/internal/runtime.eface", align 8
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%7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %6, i32 0, i32 0
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store ptr %4, ptr %7, align 8
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%8 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.eface", ptr %6, i32 0, i32 1
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store ptr %5, ptr %8, align 8
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%9 = load %"github.com/goplus/llgo/internal/runtime.eface", ptr %6, align 8
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call void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface" %9)
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unreachable
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}
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define void @main.init() {
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_llgo_0:
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%0 = load i1, ptr @"main.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 @"main.init$guard", align 1
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%1 = load i32, ptr @__llgo_defer, align 4
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%2 = icmp eq i32 %1, ptr null
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br i1 %2, label %_llgo_3, label %_llgo_4
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br label %_llgo_2
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_llgo_2: ; preds = %_llgo_1, %_llgo_0
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ret void
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_llgo_3: ; preds = %_llgo_1
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%3 = call i32 @pthread_key_create(ptr @__llgo_defer, ptr null)
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br label %_llgo_4
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_llgo_4: ; preds = %_llgo_3, %_llgo_1
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call void @"main.init$abi"()
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}
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define i32 @main(i32 %0, ptr %1) {
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_llgo_0:
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store i32 %0, ptr @__llgo_argc, align 4
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store ptr %1, ptr @__llgo_argv, align 8
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call void @"github.com/goplus/llgo/internal/runtime.init"()
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call void @main.init()
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%2 = load i32, ptr @__llgo_defer, align 4
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%3 = call ptr @pthread_getspecific(i32 %2)
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%4 = alloca i8, i64 32, align 1
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%5 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Defer", ptr %4, i32 0, i32 0
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store ptr @main._llgo_defer, ptr %5, align 8
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%6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Defer", ptr %4, i32 0, i32 1
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store i64 0, ptr %6, align 4
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%7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Defer", ptr %4, i32 0, i32 2
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store ptr %3, ptr %7, align 8
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%8 = call i32 @pthread_setspecific(i32 %2, ptr %4)
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%9 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Defer", ptr %4, i32 0, i32 1
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%10 = load i64, ptr %9, align 4
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%11 = or i64 %10, 1
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store i64 %11, ptr %9, align 4
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%12 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
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%13 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %12, i32 0, i32 0
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store ptr @1, ptr %13, align 8
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%14 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %12, i32 0, i32 1
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store i64 5, ptr %14, align 4
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%15 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %12, align 8
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%16 = call i1 @main.f(%"github.com/goplus/llgo/internal/runtime.String" %15)
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br i1 %16, label %_llgo_2, label %_llgo_4
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_llgo_1: ; No predecessors!
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ret i32 0
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_llgo_2: ; preds = %_llgo_0
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%17 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
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%18 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %17, i32 0, i32 0
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store ptr @2, ptr %18, align 8
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%19 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %17, i32 0, i32 1
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store i64 5, ptr %19, align 4
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%20 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %17, align 8
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%21 = load i32, ptr @__llgo_defer, align 4
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%22 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Defer", ptr %4, i32 0, i32 1
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%23 = load i64, ptr %22, align 4
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%24 = or i64 %23, 2
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store i64 %24, ptr %22, align 4
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br label %_llgo_3
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_llgo_3: ; preds = %_llgo_4, %_llgo_2
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%25 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
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%26 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %25, i32 0, i32 0
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store ptr @3, ptr %26, align 8
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%27 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %25, i32 0, i32 1
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store i64 3, ptr %27, align 4
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%28 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %25, align 8
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%29 = load i32, ptr @__llgo_defer, align 4
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%30 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Defer", ptr %4, i32 0, i32 1
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%31 = load i64, ptr %30, align 4
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%32 = or i64 %31, 4
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store i64 %32, ptr %30, align 4
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%33 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Defer", ptr %4, i32 0, i32 1
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%34 = load i64, ptr %33, align 4
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call void @main._llgo_defer(i64 %34)
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ret i32 0
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_llgo_4: ; preds = %_llgo_0
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%35 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
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%36 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %35, i32 0, i32 0
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store ptr @4, ptr %36, align 8
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%37 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %35, i32 0, i32 1
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store i64 5, ptr %37, align 4
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%38 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %35, align 8
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%39 = load i32, ptr @__llgo_defer, align 4
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%40 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Defer", ptr %4, i32 0, i32 1
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%41 = load i64, ptr %40, align 4
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%42 = or i64 %41, 8
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store i64 %42, ptr %40, align 4
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call void @main.fail()
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br label %_llgo_3
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}
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define void @"main.init$abi"() {
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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/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/internal/runtime.Basic"(i64)
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declare ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64)
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declare void @"github.com/goplus/llgo/internal/runtime.TracePanic"(%"github.com/goplus/llgo/internal/runtime.eface")
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declare void @"github.com/goplus/llgo/internal/runtime.init"()
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define void @"main.main$1"() {
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_llgo_0:
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%0 = alloca %"github.com/goplus/llgo/internal/runtime.String", align 8
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%1 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %0, i32 0, i32 0
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store ptr @5, ptr %1, align 8
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%2 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.String", ptr %0, i32 0, i32 1
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store i64 2, ptr %2, align 4
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%3 = load %"github.com/goplus/llgo/internal/runtime.String", ptr %0, align 8
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call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %3)
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call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
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ret void
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}
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define void @main._llgo_defer(i64 %0) {
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_llgo_0:
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%1 = and i64 %0, 1
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%2 = icmp ne i64 %1, 0
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br i1 %2, label %_llgo_1, label %_llgo_2
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_llgo_1: ; preds = %_llgo_0
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call void @"main.main$1"()
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br label %_llgo_2
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_llgo_2: ; preds = %_llgo_1, %_llgo_0
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%3 = and i64 %0, 2
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%4 = icmp ne i64 %3, 0
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br i1 %4, 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/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %20)
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call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
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br label %_llgo_4
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_llgo_4: ; preds = %_llgo_3, %_llgo_2
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%5 = and i64 %0, 4
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%6 = icmp ne i64 %5, 0
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br i1 %6, 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/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %28)
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call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
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br label %_llgo_6
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_llgo_6: ; preds = %_llgo_5, %_llgo_4
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%7 = and i64 %0, 8
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%8 = icmp ne i64 %7, 0
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br i1 %8, label %_llgo_7, label %_llgo_8
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_llgo_7: ; preds = %_llgo_6
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call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %38)
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call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
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br label %_llgo_8
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_llgo_8: ; preds = %_llgo_7, %_llgo_6
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ret void
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}
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declare ptr @pthread_getspecific(i32)
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declare i32 @pthread_setspecific(i32, ptr)
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declare void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String")
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declare void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8)
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declare i32 @pthread_key_create(ptr, ptr)
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