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+//@ only-linux |
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+//@ ignore-cross-compile |
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+ |
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+use run_make_support::llvm::llvm_bin_dir; |
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+use run_make_support::{cmd, env_var, llvm_filecheck, read_dir, rustc, source_root}; |
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+ |
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+use std::ffi::OsStr; |
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+ |
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+fn main() { |
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+// `-Ccodegen-units=16 -Copt-level=2` is used here to trigger thin LTO |
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+// across codegen units to test deduplication of the named metadata |
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+// (see `LLVMRustPrepareThinLTOImport` for details). |
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+rustc() |
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+.emit("link,obj") |
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+.arg("-") |
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+.arg("-Csave-temps") |
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+.codegen_units(16) |
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+.opt_level("2") |
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+.target(&env_var("TARGET")) |
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+.stdin("fn main(){}") |
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+.run(); |
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+ |
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+// `llvm-dis` is used here since `--emit=llvm-ir` does not emit LLVM IR |
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+// for temporary outputs. |
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+let mut files = Vec::new(); |
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+read_dir(".", |path |
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+if path.is_file() && path.extension().is_some_and(|ext |
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+ files.push(path.to_path_buf()); |
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+} |
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+}); |
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+cmd(llvm_bin_dir().join("llvm-dis")).args(&files).run(); |
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+ |
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+// Check LLVM IR files (including temporary outputs) have `!llvm.ident` |
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+// named metadata, reusing the related codegen test. |
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+let llvm_ident_path = source_root().join("tests/codegen/llvm-ident.rs"); |
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+read_dir(".", |path |
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+if path.is_file() && path.extension().is_some_and(|ext |
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+llvm_filecheck().input_file(path).arg(&llvm_ident_path).run(); |
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+} |
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+}); |
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+} |