| //@ compile-flags: -Cllvm-args=-not-a-real-llvm-arg | |
| //@ normalize-stderr: "--help" -> "-help" | |
| //@ normalize-stderr: "\n(\n|.)*" -> "" | |
| //@ ignore-backends: gcc | |
| // I'm seeing "--help" locally, but "-help" in CI, so I'm normalizing it to just "-help". | |
| // Note that the rustc-supplied "program name", given when invoking LLVM, is used by LLVM to | |
| // generate user-facing error messages and a usage (--help) messages. If the program name is | |
| // `rustc`, the usage message in response to `--llvm-args="--help"` starts with: | |
| // ``` | |
| // USAGE: rustc [options] | |
| // ``` | |
| // followed by the list of options not to `rustc` but to `llvm`. | |
| // | |
| // On the other hand, if the program name is set to `rustc -Cllvm-args="..." with`, the usage | |
| // message is more clear: | |
| // ``` | |
| // USAGE: rustc -Cllvm-args="..." with [options] | |
| // ``` | |
| // This test captures the effect of the current program name setting on LLVM command line | |
| // error messages. | |
| fn main() {} |