rust/tests/codegen/cffi/ffi-const.rs

//@ compile-flags: -C no-prepopulate-passes
#![crate_type = "lib"]
#![feature(ffi_const)]

pub fn bar() {
    unsafe { foo() }
}

extern "C" {
    // CHECK-LABEL: declare{{.*}}void @foo()
    // CHECK-SAME: [[ATTRS:#[0-9]+]]
    // CHECK-DAG: attributes [[ATTRS]] = { {{.*}}memory(none){{.*}} }
    #[ffi_const]
    pub fn foo();
}
[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives 2024-02-22 12:10:29 +00:00			`//@ compile-flags: -C no-prepopulate-passes`
Add tests for `#[ffi_const]` and `#[ffi_pure]` function attributes Based on the work of gnzlbg <gonzalobg88@gmail.com>. 2020-04-13 22:21:19 +00:00			`#![crate_type = "lib"]`
			`#![feature(ffi_const)]`

Run rustfmt on `tests/codegen/`. Except for `simd-intrinsic/`, which has a lot of files containing multiple types like `u8x64` which really are better when hand-formatted. There is a surprising amount of two-space indenting in this directory. Non-trivial changes: - `rustfmt::skip` needed in `debug-column.rs` to preserve meaning of the test. - `rustfmt::skip` used in a few places where hand-formatting read more nicely: `enum/enum-match.rs` - Line number adjustments needed for the expected output of `debug-column.rs` and `coroutine-debug.rs`. 2024-05-29 04:11:20 +00:00			`pub fn bar() {`
			`unsafe { foo() }`
			`}`
Add tests for `#[ffi_const]` and `#[ffi_pure]` function attributes Based on the work of gnzlbg <gonzalobg88@gmail.com>. 2020-04-13 22:21:19 +00:00
Update tests for extern block linting 2020-09-01 21:12:52 +00:00			`extern "C" {`
Manually set dso_local when its valid to do so 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 2021-03-27 22:11:24 +00:00			`// CHECK-LABEL: declare{{.*}}void @foo()`
Add tests for `#[ffi_const]` and `#[ffi_pure]` function attributes Based on the work of gnzlbg <gonzalobg88@gmail.com>. 2020-04-13 22:21:19 +00:00			`// CHECK-SAME: [[ATTRS:#[0-9]+]]`
Update the minimum external LLVM to 19 2025-04-02 19:08:01 +00:00			`// CHECK-DAG: attributes [[ATTRS]] = { {{.}}memory(none){{.}} }`
Run rustfmt on `tests/codegen/`. Except for `simd-intrinsic/`, which has a lot of files containing multiple types like `u8x64` which really are better when hand-formatted. There is a surprising amount of two-space indenting in this directory. Non-trivial changes: - `rustfmt::skip` needed in `debug-column.rs` to preserve meaning of the test. - `rustfmt::skip` used in a few places where hand-formatting read more nicely: `enum/enum-match.rs` - Line number adjustments needed for the expected output of `debug-column.rs` and `coroutine-debug.rs`. 2024-05-29 04:11:20 +00:00			`#[ffi_const]`
			`pub fn foo();`
Add tests for `#[ffi_const]` and `#[ffi_pure]` function attributes Based on the work of gnzlbg <gonzalobg88@gmail.com>. 2020-04-13 22:21:19 +00:00			`}`