Merge pull request 55 from nickbabcock/fat-lot

README.md

@@ -91,6 +91,15 @@ enabled for the linker to deduce those do not panic.
 lto = "thin"
 ```
 
+If thin LTO isn't cutting it, the next thing to try would be fat LTO with a
+single codegen unit:
+
+```toml
+[profile.release]
+lto = "fat"
+codegen-units = 1
+```
+
 If you want no\_panic to just assume that some function you call doesn't panic,
 and get Undefined Behavior if it does at runtime, see [dtolnay/no-panic#16]; try
 wrapping that call in an `unsafe extern "C"` wrapper.