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