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]: 3001d080c8/clang/lib/CodeGen/CodeGenModule.cpp (L945-L1039)
43 lines
769 B
Rust
43 lines
769 B
Rust
// compile-flags: -C no-prepopulate-passes
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#![crate_type = "staticlib"]
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// CHECK: define{{.*}}void @a()
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#[no_mangle]
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#[inline]
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pub extern "C" fn a() {}
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// CHECK: define{{.*}}void @b()
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#[export_name = "b"]
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#[inline]
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pub extern "C" fn b() {}
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// CHECK: define{{.*}}void @c()
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#[no_mangle]
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#[inline]
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extern "C" fn c() {}
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// CHECK: define{{.*}}void @d()
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#[export_name = "d"]
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#[inline]
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extern "C" fn d() {}
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// CHECK: define{{.*}}void @e()
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#[no_mangle]
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#[inline(always)]
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pub extern "C" fn e() {}
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// CHECK: define{{.*}}void @f()
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#[export_name = "f"]
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#[inline(always)]
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pub extern "C" fn f() {}
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// CHECK: define{{.*}}void @g()
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#[no_mangle]
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#[inline(always)]
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extern "C" fn g() {}
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// CHECK: define{{.*}}void @h()
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#[export_name = "h"]
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#[inline(always)]
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extern "C" fn h() {}
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