mirror of https://github.com/rust-lang/rust
104 lines
2.5 KiB
Rust
104 lines
2.5 KiB
Rust
// Checks that we correctly codegen extern "C" functions returning structs.
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// See issues #52638 and #86163.
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//@ compile-flags: -O --target=sparc64-unknown-linux-gnu --crate-type=rlib
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//@ needs-llvm-components: sparc
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#![feature(no_core, lang_items)]
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#![no_core]
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#[lang="sized"]
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trait Sized { }
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#[lang="freeze"]
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trait Freeze { }
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#[lang="copy"]
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trait Copy { }
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#[repr(C)]
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pub struct Bool {
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b: bool,
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}
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// CHECK: define{{.*}} i64 @structbool()
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// CHECK-NEXT: start:
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// CHECK-NEXT: ret i64 72057594037927936
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#[no_mangle]
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pub extern "C" fn structbool() -> Bool {
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Bool { b: true }
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}
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#[repr(C)]
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pub struct BoolFloat {
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b: bool,
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f: f32,
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}
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// CHECK: define inreg { i32, float } @structboolfloat()
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// CHECK-NEXT: start:
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// CHECK-NEXT: ret { i32, float } { i32 16777216, float 0x40091EB860000000 }
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#[no_mangle]
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pub extern "C" fn structboolfloat() -> BoolFloat {
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BoolFloat { b: true, f: 3.14 }
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}
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// CHECK: define void @structboolfloat_input({ i32, float } inreg %0)
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// CHECK-NEXT: start:
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#[no_mangle]
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pub extern "C" fn structboolfloat_input(a: BoolFloat) { }
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#[repr(C)]
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pub struct ShortDouble {
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s: i16,
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d: f64,
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}
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// CHECK: define { i64, double } @structshortdouble()
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// CHECK-NEXT: start:
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// CHECK-NEXT: ret { i64, double } { i64 34621422135410688, double 3.140000e+00 }
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#[no_mangle]
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pub extern "C" fn structshortdouble() -> ShortDouble {
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ShortDouble { s: 123, d: 3.14 }
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}
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// CHECK: define void @structshortdouble_input({ i64, double } %0)
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// CHECK-NEXT: start:
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#[no_mangle]
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pub extern "C" fn structshortdouble_input(a: ShortDouble) { }
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#[repr(C)]
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pub struct FloatLongFloat {
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f: f32,
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i: i64,
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g: f32,
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}
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// CHECK: define inreg { float, i32, i64, float, i32 } @structfloatlongfloat()
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// CHECK-NEXT: start:
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// CHECK-NEXT: ret { float, i32, i64, float, i32 } { float 0x3FB99999A0000000, i32 undef, i64 123, float 0x40091EB860000000, i32 undef }
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#[no_mangle]
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pub extern "C" fn structfloatlongfloat() -> FloatLongFloat {
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FloatLongFloat { f: 0.1, i: 123, g: 3.14 }
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}
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#[repr(C)]
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pub struct FloatFloat {
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f: f32,
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g: f32,
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}
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#[repr(C)]
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pub struct NestedStructs {
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a: FloatFloat,
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b: FloatFloat,
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}
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// CHECK: define inreg { float, float, float, float } @structnestestructs()
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// CHECK-NEXT: start:
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// CHECK-NEXT: ret { float, float, float, float } { float 0x3FB99999A0000000, float 0x3FF19999A0000000, float 0x40019999A0000000, float 0x400A666660000000 }
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#[no_mangle]
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pub extern "C" fn structnestestructs() -> NestedStructs {
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NestedStructs { a: FloatFloat { f: 0.1, g: 1.1 }, b: FloatFloat { f: 2.2, g: 3.3 } }
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}
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