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Simonas Kazlauskas
2f000a78bf
This should have no real effect in most cases, as e.g. `hidden` visibility already implies `dso_local` (or at least LLVM IR does not preserve the `dso_local` setting if the item is already `hidden`), but it should fix `-Crelocation-model=static` and improve codegen in executables. Note that this PR does not exhaustively port the logic in [clang]. Only the obviously correct portion and what is necessary to fix a regression from LLVM 12 that relates to `-Crelocation_model=static`. Fixes #83335 [clang]: https://github.com/llvm/llvm-project/blob/3001d080c813da20b329303bf8f45451480e5905/clang/lib/CodeGen/CodeGenModule.cpp#L945-L1039
13 lines
317 B
Rust
13 lines
317 B
Rust
// compile-flags: -C no-prepopulate-passes
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#![crate_type = "lib"]
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#![feature(ffi_pure)]
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pub fn bar() { unsafe { foo() } }
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extern "C" {
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// CHECK-LABEL: declare{{.*}}void @foo()
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// CHECK-SAME: [[ATTRS:#[0-9]+]]
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// CHECK-DAG: attributes [[ATTRS]] = { {{.*}}readonly{{.*}} }
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#[ffi_pure] pub fn foo();
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}
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