From 631cd5845e8de329d0e227aaa707d7ea228b8f8f Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:20:29 +0200 Subject: Merging upstream version 1.70.0+dfsg1. Signed-off-by: Daniel Baumann --- .../run-make/extern-fn-struct-passing-abi/test.rs | 138 +++++++++++++++++++++ 1 file changed, 138 insertions(+) create mode 100644 tests/run-make/extern-fn-struct-passing-abi/test.rs (limited to 'tests/run-make/extern-fn-struct-passing-abi/test.rs') diff --git a/tests/run-make/extern-fn-struct-passing-abi/test.rs b/tests/run-make/extern-fn-struct-passing-abi/test.rs new file mode 100644 index 000000000..afe0f52ef --- /dev/null +++ b/tests/run-make/extern-fn-struct-passing-abi/test.rs @@ -0,0 +1,138 @@ +// Passing structs via FFI should work regardless of whether +// they get passed in multiple registers, byval pointers or the stack + +#[derive(Clone, Copy, Debug, PartialEq)] +#[repr(C)] +struct Rect { + a: i32, + b: i32, + c: i32, + d: i32, +} + +#[derive(Clone, Copy, Debug, PartialEq)] +#[repr(C)] +struct BiggerRect { + s: Rect, + a: i32, + b: i32, +} + +#[derive(Clone, Copy, Debug, PartialEq)] +#[repr(C)] +struct FloatRect { + a: i32, + b: i32, + c: f64, +} + +#[derive(Clone, Copy, Debug, PartialEq)] +#[repr(C)] +struct Huge { + a: i32, + b: i32, + c: i32, + d: i32, + e: i32, +} + +#[derive(Clone, Copy, Debug, PartialEq)] +#[repr(C)] +struct FloatPoint { + x: f64, + y: f64, +} + +#[derive(Clone, Copy, Debug, PartialEq)] +#[repr(C)] +struct FloatOne { + x: f64, +} + +#[derive(Clone, Copy, Debug, PartialEq)] +#[repr(C)] +struct IntOdd { + a: i8, + b: i8, + c: i8, +} + +#[link(name = "test", kind = "static")] +extern "C" { + fn byval_rect(a: i32, b: i32, c: i32, d: i32, e: i32, s: Rect); + + fn byval_many_rect(a: i32, b: i32, c: i32, d: i32, e: i32, f: i32, s: Rect); + + fn byval_rect_floats( + a: f32, + b: f32, + c: f64, + d: f32, + e: f32, + f: f32, + g: f64, + s: Rect, + t: FloatRect, + ); + + fn byval_rect_with_float(a: i32, b: i32, c: f32, d: i32, e: i32, f: i32, s: Rect); + + fn byval_rect_with_many_huge(a: Huge, b: Huge, c: Huge, d: Huge, e: Huge, f: Huge, g: Rect); + + fn split_rect(a: i32, b: i32, s: Rect); + + fn split_rect_floats(a: f32, b: f32, s: FloatRect); + + fn split_rect_with_floats(a: i32, b: i32, c: f32, d: i32, e: f32, f: i32, s: Rect); + + fn split_and_byval_rect(a: i32, b: i32, c: i32, s: Rect, t: Rect); + + fn split_ret_byval_struct(a: i32, b: i32, s: Rect) -> Rect; + + fn sret_byval_struct(a: i32, b: i32, c: i32, d: i32, s: Rect) -> BiggerRect; + + fn sret_split_struct(a: i32, b: i32, s: Rect) -> BiggerRect; + + fn huge_struct(s: Huge) -> Huge; + + fn float_point(p: FloatPoint) -> FloatPoint; + + fn float_one(f: FloatOne) -> FloatOne; + + fn int_odd(i: IntOdd) -> IntOdd; +} + +fn main() { + let s = Rect { a: 553, b: 554, c: 555, d: 556 }; + let t = BiggerRect { s: s, a: 27834, b: 7657 }; + let u = FloatRect { a: 3489, b: 3490, c: 8. }; + let v = Huge { a: 5647, b: 5648, c: 5649, d: 5650, e: 5651 }; + let p = FloatPoint { x: 5., y: -3. }; + let f1 = FloatOne { x: 7. }; + let i = IntOdd { a: 1, b: 2, c: 3 }; + + unsafe { + byval_rect(1, 2, 3, 4, 5, s); + byval_many_rect(1, 2, 3, 4, 5, 6, s); + byval_rect_floats(1., 2., 3., 4., 5., 6., 7., s, u); + byval_rect_with_float(1, 2, 3.0, 4, 5, 6, s); + byval_rect_with_many_huge(v, v, v, v, v, v, Rect { a: 123, b: 456, c: 789, d: 420 }); + split_rect(1, 2, s); + split_rect_floats(1., 2., u); + split_rect_with_floats(1, 2, 3.0, 4, 5.0, 6, s); + split_and_byval_rect(1, 2, 3, s, s); + split_rect(1, 2, s); + assert_eq!(huge_struct(v), v); + assert_eq!(split_ret_byval_struct(1, 2, s), s); + assert_eq!(sret_byval_struct(1, 2, 3, 4, s), t); + assert_eq!(sret_split_struct(1, 2, s), t); + assert_eq!(float_point(p), p); + assert_eq!(int_odd(i), i); + + // MSVC/GCC/Clang are not consistent in the ABI of single-float aggregates. + // x86_64: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82028 + // i686: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82041 + #[cfg(not(all(windows, target_env = "gnu")))] + assert_eq!(float_one(f1), f1); + } +} -- cgit v1.2.3