// #target: x64-darwin
module defer1;
import std::io;

func void test(int x)
{
    defer io::println();
    defer io::print("A");
    if (x == 1) return;
    {
        defer io::print("B");
        if (x == 0) return;
    }
    io::print("!");
}

func void main()
{
    test(1); // Prints "A"
    test(0); // Prints "BA"
    test(10); // Prints "B!A"
}

// #expect: defer1.ll

define void @defer1.test(i32 %0) #0 {
entry:
  %x = alloca i32, align 4
  store i32 %0, i32* %x, align 4
  %1 = load i32, i32* %x, align 4
  %eq = icmp eq i32 %1, 1
  br i1 %eq, label %if.then, label %if.exit

if.then:                                          ; preds = %entry
  %2 = call i32 @"std::io.print"(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i32 0, i32 0))
  br label %exit

exit:                                             ; preds = %if.then
  %3 = call i32 @"std::io.println"(i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str.1, i32 0, i32 0)) #1
  br label %exit1

exit1:                                            ; preds = %exit
  ret void

if.exit:                                          ; preds = %entry
  %4 = load i32, i32* %x, align 4
  %eq2 = icmp eq i32 %4, 0
  br i1 %eq2, label %if.then3, label %if.exit7

if.then3:                                         ; preds = %if.exit
  %5 = call i32 @"std::io.print"(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i32 0, i32 0))
  br label %exit4

exit4:                                            ; preds = %if.then3
  %6 = call i32 @"std::io.print"(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i32 0, i32 0))
  br label %exit5

exit5:                                            ; preds = %exit4
  %7 = call i32 @"std::io.println"(i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str.4, i32 0, i32 0)) #1
  br label %exit6

exit6:                                            ; preds = %exit5
  ret void

if.exit7:                                         ; preds = %if.exit
  %8 = call i32 @"std::io.print"(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.5, i32 0, i32 0))
  br label %exit8

exit8:                                            ; preds = %if.exit7
  %9 = call i32 @"std::io.print"(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.6, i32 0, i32 0))
  %10 = call i32 @"std::io.print"(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.7, i32 0, i32 0))
  br label %exit9

exit9:                                            ; preds = %exit8
  %11 = call i32 @"std::io.println"(i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str.8, i32 0, i32 0)) #1
  br label %exit10

exit10:                                           ; preds = %exit9
  ret void
}

; Function Attrs: nounwind
define void @main() #0 {
entry:
  call void @defer1.test(i32 1)
  call void @defer1.test(i32 0)
  call void @defer1.test(i32 10)
  ret void
}