Check in panic_utils.zig

crates/compiler/builtins/bitcode/src/panic.zig

@@ -0,0 +1,16 @@
+const std = @import("std");
+const RocStr = @import("str.zig").RocStr;
+const always_inline = std.builtin.CallOptions.Modifier.always_inline;
+
+// Signals to the host that the program has panicked
+extern fn roc_panic(msg: *const RocStr, tag_id: u32) callconv(.C) void;
+
+pub fn panic_help(msg: []const u8, tag_id: u32) void {
+    var str = RocStr.init(msg.ptr, msg.len);
+    roc_panic(&str, tag_id);
+}
+
+// must export this explicitly because right now it is not used from zig code
+pub fn panic(msg: *const RocStr, alignment: u32) callconv(.C) void {
+    return @call(.{ .modifier = always_inline }, roc_panic, .{ msg, alignment });
+}