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Auto merge of #126941 - GuillaumeGomez:migrate-run-make-llvm-ident, r…
…=<try> Migrate `run-make/llvm-ident` to `rmake.rs` Part of #121876. r? `@Kobzol` try-job: armhf-gnu
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//@ only-linux | ||
//@ ignore-cross-compile | ||
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use run_make_support::llvm::llvm_bin_dir; | ||
use run_make_support::{cmd, env_var, llvm_filecheck, read_dir, rustc, source_root}; | ||
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use std::ffi::OsStr; | ||
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fn main() { | ||
// `-Ccodegen-units=16 -Copt-level=2` is used here to trigger thin LTO | ||
// across codegen units to test deduplication of the named metadata | ||
// (see `LLVMRustPrepareThinLTOImport` for details). | ||
rustc() | ||
.emit("link,obj") | ||
.arg("-") | ||
.arg("-Csave-temps") | ||
.codegen_units(16) | ||
.opt_level("2") | ||
.target(&env_var("TARGET")) | ||
.stdin("fn main(){}") | ||
.run(); | ||
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// `llvm-dis` is used here since `--emit=llvm-ir` does not emit LLVM IR | ||
// for temporary outputs. | ||
let mut files = Vec::new(); | ||
read_dir(".", |path| { | ||
if path.is_file() && path.extension().is_some_and(|ext| ext == OsStr::new("bc")) { | ||
files.push(path.to_path_buf()); | ||
} | ||
}); | ||
cmd(llvm_bin_dir().join("llvm-dis")).args(&files).run(); | ||
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// Check LLVM IR files (including temporary outputs) have `!llvm.ident` | ||
// named metadata, reusing the related codegen test. | ||
let llvm_ident_path = source_root().join("tests/codegen/llvm-ident.rs"); | ||
read_dir(".", |path| { | ||
if path.is_file() && path.extension().is_some_and(|ext| ext == OsStr::new("ll")) { | ||
llvm_filecheck().input_file(path).arg(&llvm_ident_path).run(); | ||
} | ||
}); | ||
} |