```zig
export fn entry() void {
    var c = true;
    var a = u8(4);
    const x = if (c) a else u32(8);
}
```

```llvm
define void @entry() #2 !dbg !35 {
Entry:
  %c = alloca i1, align 1
  %a = alloca i8, align 1
  %x = alloca i32, align 4
  store i1 true, i1* %c, align 1, !dbg !45
  call void @llvm.dbg.declare(metadata i1* %c, metadata !39, metadata !DIExpression()), !dbg !46
  store i8 4, i8* %a, align 1, !dbg !47
  call void @llvm.dbg.declare(metadata i8* %a, metadata !42, metadata !DIExpression()), !dbg !48
  %0 = load i1, i1* %c, align 1, !dbg !49
  br i1 %0, label %Then, label %Else, !dbg !49

Then:                                             ; preds = %Entry
  %1 = load i8, i8* %a, align 1, !dbg !50
  %2 = zext i8 %1 to i32, !dbg !50
  br label %EndIf, !dbg !51

Else:                                             ; preds = %Entry
  br label %EndIf, !dbg !51

EndIf:                                            ; preds = %Else, %Then
  %3 = phi i32 [ %2, %Then ], [ 8, %Else ], !dbg !51
  store i32 %3, i32* %x, align 4, !dbg !51
  call void @llvm.dbg.declare(metadata i32* %x, metadata !43, metadata !DIExpression()), !dbg !52
  ret void, !dbg !53
}
```