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)
21 lines
548 B
Rust
21 lines
548 B
Rust
// Checks if the correct annotation for the sysv64 ABI is passed to
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// llvm. Also checks that the abi-sysv64 feature gate allows usage
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// of the sysv64 abi.
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//
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// needs-llvm-components: x86
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// compile-flags: -C no-prepopulate-passes --target=x86_64-unknown-linux-gnu
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#![crate_type = "lib"]
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#![no_core]
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#![feature(abi_x86_interrupt, no_core, lang_items)]
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#[lang = "sized"]
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trait Sized {}
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#[lang = "copy"]
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trait Copy {}
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// CHECK: define x86_64_sysvcc i64 @has_sysv64_abi
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#[no_mangle]
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pub extern "sysv64" fn has_sysv64_abi(a: i64) -> i64 {
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a
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}
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