1export fn foo() void {
 2    var a: f32 = 2;
 3    _ = &a;
 4    _ = @as(comptime_float, @floatCast(a));
 5}
 6export fn bar() void {
 7    var a: f32 = 2;
 8    _ = &a;
 9    _ = @as(f32, @intFromFloat(a));
10}
11export fn baz() void {
12    var a: f32 = 2;
13    _ = &a;
14    _ = @as(f32, @floatFromInt(a));
15}
16export fn qux() void {
17    var a: u32 = 2;
18    _ = &a;
19    _ = @as(f32, @floatCast(a));
20}
21
22// error
23//
24// :4:40: error: unable to cast runtime value to 'comptime_float'
25// :9:18: error: expected integer type, found 'f32'
26// :14:32: error: expected integer type, found 'f32'
27// :19:29: error: expected float or vector type, found 'u32'