diff options
Diffstat (limited to 'tests/run-make-fulldeps/extern-fn-struct-passing-abi')
3 files changed, 457 insertions, 0 deletions
diff --git a/tests/run-make-fulldeps/extern-fn-struct-passing-abi/Makefile b/tests/run-make-fulldeps/extern-fn-struct-passing-abi/Makefile new file mode 100644 index 000000000..4f5d026f2 --- /dev/null +++ b/tests/run-make-fulldeps/extern-fn-struct-passing-abi/Makefile @@ -0,0 +1,5 @@ +include ../tools.mk + +all: $(call NATIVE_STATICLIB,test) + $(RUSTC) test.rs + $(call RUN,test) || exit 1 diff --git a/tests/run-make-fulldeps/extern-fn-struct-passing-abi/test.c b/tests/run-make-fulldeps/extern-fn-struct-passing-abi/test.c new file mode 100644 index 000000000..136b07129 --- /dev/null +++ b/tests/run-make-fulldeps/extern-fn-struct-passing-abi/test.c @@ -0,0 +1,314 @@ +#include <assert.h> +#include <stdint.h> + +struct Rect { + int32_t a; + int32_t b; + int32_t c; + int32_t d; +}; + +struct BiggerRect { + struct Rect s; + int32_t a; + int32_t b; +}; + +struct FloatRect { + int32_t a; + int32_t b; + double c; +}; + +struct Huge { + int32_t a; + int32_t b; + int32_t c; + int32_t d; + int32_t e; +}; + +struct FloatPoint { + double x; + double y; +}; + +struct FloatOne { + double x; +}; + +struct IntOdd { + int8_t a; + int8_t b; + int8_t c; +}; + +// System V x86_64 ABI: +// a, b, c, d, e should be in registers +// s should be byval pointer +// +// Win64 ABI: +// a, b, c, d should be in registers +// e should be on the stack +// s should be byval pointer +void byval_rect(int32_t a, int32_t b, int32_t c, int32_t d, int32_t e, struct Rect s) { + assert(a == 1); + assert(b == 2); + assert(c == 3); + assert(d == 4); + assert(e == 5); + assert(s.a == 553); + assert(s.b == 554); + assert(s.c == 555); + assert(s.d == 556); +} + +// System V x86_64 ABI: +// a, b, c, d, e, f should be in registers +// s should be byval pointer on the stack +// +// Win64 ABI: +// a, b, c, d should be in registers +// e, f should be on the stack +// s should be byval pointer on the stack +void byval_many_rect(int32_t a, int32_t b, int32_t c, int32_t d, int32_t e, + int32_t f, struct Rect s) { + assert(a == 1); + assert(b == 2); + assert(c == 3); + assert(d == 4); + assert(e == 5); + assert(f == 6); + assert(s.a == 553); + assert(s.b == 554); + assert(s.c == 555); + assert(s.d == 556); +} + +// System V x86_64 ABI: +// a, b, c, d, e, f, g should be in sse registers +// s should be split across 2 registers +// t should be byval pointer +// +// Win64 ABI: +// a, b, c, d should be in sse registers +// e, f, g should be on the stack +// s should be on the stack (treated as 2 i64's) +// t should be on the stack (treated as an i64 and a double) +void byval_rect_floats(float a, float b, double c, float d, float e, + float f, double g, struct Rect s, struct FloatRect t) { + assert(a == 1.); + assert(b == 2.); + assert(c == 3.); + assert(d == 4.); + assert(e == 5.); + assert(f == 6.); + assert(g == 7.); + assert(s.a == 553); + assert(s.b == 554); + assert(s.c == 555); + assert(s.d == 556); + assert(t.a == 3489); + assert(t.b == 3490); + assert(t.c == 8.); +} + +// System V x86_64 ABI: +// a, b, d, e, f should be in registers +// c passed via sse registers +// s should be byval pointer +// +// Win64 ABI: +// a, b, d should be in registers +// c passed via sse registers +// e, f should be on the stack +// s should be byval pointer +void byval_rect_with_float(int32_t a, int32_t b, float c, int32_t d, + int32_t e, int32_t f, struct Rect s) { + assert(a == 1); + assert(b == 2); + assert(c == 3.); + assert(d == 4); + assert(e == 5); + assert(f == 6); + assert(s.a == 553); + assert(s.b == 554); + assert(s.c == 555); + assert(s.d == 556); +} + +// System V x86_64 ABI: +// a, b, d, e, f should be byval pointer (on the stack) +// g passed via register (fixes #41375) +// +// Win64 ABI: +// a, b, d, e, f, g should be byval pointer +void byval_rect_with_many_huge(struct Huge a, struct Huge b, struct Huge c, + struct Huge d, struct Huge e, struct Huge f, + struct Rect g) { + assert(g.a == 123); + assert(g.b == 456); + assert(g.c == 789); + assert(g.d == 420); +} + +// System V x86_64 & Win64 ABI: +// a, b should be in registers +// s should be split across 2 integer registers +void split_rect(int32_t a, int32_t b, struct Rect s) { + assert(a == 1); + assert(b == 2); + assert(s.a == 553); + assert(s.b == 554); + assert(s.c == 555); + assert(s.d == 556); +} + +// System V x86_64 & Win64 ABI: +// a, b should be in sse registers +// s should be split across integer & sse registers +void split_rect_floats(float a, float b, struct FloatRect s) { + assert(a == 1.); + assert(b == 2.); + assert(s.a == 3489); + assert(s.b == 3490); + assert(s.c == 8.); +} + +// System V x86_64 ABI: +// a, b, d, f should be in registers +// c, e passed via sse registers +// s should be split across 2 registers +// +// Win64 ABI: +// a, b, d should be in registers +// c passed via sse registers +// e, f should be on the stack +// s should be on the stack (treated as 2 i64's) +void split_rect_with_floats(int32_t a, int32_t b, float c, + int32_t d, float e, int32_t f, struct Rect s) { + assert(a == 1); + assert(b == 2); + assert(c == 3.); + assert(d == 4); + assert(e == 5.); + assert(f == 6); + assert(s.a == 553); + assert(s.b == 554); + assert(s.c == 555); + assert(s.d == 556); +} + +// System V x86_64 & Win64 ABI: +// a, b, c should be in registers +// s should be split across 2 registers +// t should be a byval pointer +void split_and_byval_rect(int32_t a, int32_t b, int32_t c, struct Rect s, struct Rect t) { + assert(a == 1); + assert(b == 2); + assert(c == 3); + assert(s.a == 553); + assert(s.b == 554); + assert(s.c == 555); + assert(s.d == 556); + assert(t.a == 553); + assert(t.b == 554); + assert(t.c == 555); + assert(t.d == 556); +} + +// System V x86_64 & Win64 ABI: +// a, b should in registers +// s and return should be split across 2 registers +struct Rect split_ret_byval_struct(int32_t a, int32_t b, struct Rect s) { + assert(a == 1); + assert(b == 2); + assert(s.a == 553); + assert(s.b == 554); + assert(s.c == 555); + assert(s.d == 556); + return s; +} + +// System V x86_64 & Win64 ABI: +// a, b, c, d should be in registers +// return should be in a hidden sret pointer +// s should be a byval pointer +struct BiggerRect sret_byval_struct(int32_t a, int32_t b, int32_t c, int32_t d, struct Rect s) { + assert(a == 1); + assert(b == 2); + assert(c == 3); + assert(d == 4); + assert(s.a == 553); + assert(s.b == 554); + assert(s.c == 555); + assert(s.d == 556); + + struct BiggerRect t; + t.s = s; t.a = 27834; t.b = 7657; + return t; +} + +// System V x86_64 & Win64 ABI: +// a, b should be in registers +// return should be in a hidden sret pointer +// s should be split across 2 registers +struct BiggerRect sret_split_struct(int32_t a, int32_t b, struct Rect s) { + assert(a == 1); + assert(b == 2); + assert(s.a == 553); + assert(s.b == 554); + assert(s.c == 555); + assert(s.d == 556); + + struct BiggerRect t; + t.s = s; t.a = 27834; t.b = 7657; + return t; +} + +// System V x86_64 & Win64 ABI: +// s should be byval pointer (since sizeof(s) > 16) +// return should in a hidden sret pointer +struct Huge huge_struct(struct Huge s) { + assert(s.a == 5647); + assert(s.b == 5648); + assert(s.c == 5649); + assert(s.d == 5650); + assert(s.e == 5651); + + return s; +} + +// System V x86_64 ABI: +// p should be in registers +// return should be in registers +// +// Win64 ABI and 64-bit PowerPC ELFv1 ABI: +// p should be a byval pointer +// return should be in a hidden sret pointer +struct FloatPoint float_point(struct FloatPoint p) { + assert(p.x == 5.); + assert(p.y == -3.); + + return p; +} + +// 64-bit PowerPC ELFv1 ABI: +// f1 should be in a register +// return should be in a hidden sret pointer +struct FloatOne float_one(struct FloatOne f1) { + assert(f1.x == 7.); + + return f1; +} + +// 64-bit PowerPC ELFv1 ABI: +// i should be in the least-significant bits of a register +// return should be in a hidden sret pointer +struct IntOdd int_odd(struct IntOdd i) { + assert(i.a == 1); + assert(i.b == 2); + assert(i.c == 3); + + return i; +} diff --git a/tests/run-make-fulldeps/extern-fn-struct-passing-abi/test.rs b/tests/run-make-fulldeps/extern-fn-struct-passing-abi/test.rs new file mode 100644 index 000000000..afe0f52ef --- /dev/null +++ b/tests/run-make-fulldeps/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); + } +} |