mirror of https://github.com/rust-lang/rust
70 lines
1.5 KiB
Rust
70 lines
1.5 KiB
Rust
//@ compile-flags: -C opt-level=0 -C no-prepopulate-passes
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// This test checks that arguments/returns in opt-level=0 builds,
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// while lacking attributes used for optimization, still have ABI-affecting attributes.
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#![crate_type = "lib"]
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#![feature(rustc_attrs)]
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pub struct S {
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_field: [i32; 8],
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}
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// CHECK: zeroext i1 @boolean(i1 zeroext %x)
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#[no_mangle]
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pub fn boolean(x: bool) -> bool {
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x
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}
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// CHECK-LABEL: @boolean_call
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#[no_mangle]
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pub fn boolean_call(x: bool, f: fn(bool) -> bool) -> bool {
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// CHECK: call zeroext i1 %f(i1 zeroext %x)
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f(x)
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}
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// CHECK: align 4 ptr @borrow(ptr align 4 %x)
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#[no_mangle]
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pub fn borrow(x: &i32) -> &i32 {
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x
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}
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// CHECK: align 4 ptr @borrow_mut(ptr align 4 %x)
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#[no_mangle]
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pub fn borrow_mut(x: &mut i32) -> &mut i32 {
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x
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}
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// CHECK-LABEL: @borrow_call
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#[no_mangle]
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pub fn borrow_call(x: &i32, f: fn(&i32) -> &i32) -> &i32 {
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// CHECK: call align 4 ptr %f(ptr align 4 %x)
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f(x)
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}
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// CHECK: void @struct_(ptr sret([32 x i8]) align 4{{( %_0)?}}, ptr align 4 %x)
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#[no_mangle]
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pub fn struct_(x: S) -> S {
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x
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}
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// CHECK-LABEL: @struct_call
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#[no_mangle]
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pub fn struct_call(x: S, f: fn(S) -> S) -> S {
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// CHECK: call void %f(ptr sret([32 x i8]) align 4{{( %_0)?}}, ptr align 4 %{{.+}})
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f(x)
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}
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// CHECK: { i1, i8 } @enum_(i1 zeroext %x.0, i8 %x.1)
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#[no_mangle]
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pub fn enum_(x: Option<u8>) -> Option<u8> {
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x
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}
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// CHECK-LABEL: @enum_call
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#[no_mangle]
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pub fn enum_call(x: Option<u8>, f: fn(Option<u8>) -> Option<u8>) -> Option<u8> {
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// CHECK: call { i1, i8 } %f(i1 zeroext %x.0, i8 %x.1)
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f(x)
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}
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