Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 76 insertions, 0 deletions

diff --git a/tests/codegen/union-abi.rs b/tests/codegen/union-abi.rs
new file mode 100644
index 000000000..c18f2a49f
--- /dev/null
+++ b/tests/codegen/union-abi.rs
@@ -0,0 +1,76 @@
+// ignore-emscripten vectors passed directly
+// compile-flags: -O -C no-prepopulate-passes
+
+// This test that using union forward the abi of the inner type, as
+// discussed in #54668
+
+#![crate_type="lib"]
+#![feature(repr_simd)]
+
+#[derive(Copy, Clone)]
+pub enum Unhab {}
+
+#[repr(simd)]
+#[derive(Copy, Clone)]
+pub struct i64x4(i64, i64, i64, i64);
+
+#[derive(Copy, Clone)]
+pub union UnionI64x4{ a:(), b: i64x4 }
+
+// CHECK: define void @test_UnionI64x4({{<4 x i64>\*|ptr}} {{.*}} %_1)
+#[no_mangle]
+pub fn test_UnionI64x4(_: UnionI64x4) { loop {} }
+
+pub union UnionI64x4_{ a: i64x4, b: (), c:i64x4, d: Unhab, e: ((),()), f: UnionI64x4 }
+
+// CHECK: define void @test_UnionI64x4_({{<4 x i64>\*|ptr}} {{.*}} %_1)
+#[no_mangle]
+pub fn test_UnionI64x4_(_: UnionI64x4_) { loop {} }
+
+pub union UnionI64x4I64{ a: i64x4, b: i64 }
+
+// CHECK: define void @test_UnionI64x4I64({{%UnionI64x4I64\*|ptr}} {{.*}} %_1)
+#[no_mangle]
+pub fn test_UnionI64x4I64(_: UnionI64x4I64) { loop {} }
+
+pub union UnionI64x4Tuple{ a: i64x4, b: (i64, i64, i64, i64) }
+
+// CHECK: define void @test_UnionI64x4Tuple({{%UnionI64x4Tuple\*|ptr}} {{.*}} %_1)
+#[no_mangle]
+pub fn test_UnionI64x4Tuple(_: UnionI64x4Tuple) { loop {} }
+
+
+pub union UnionF32{a:f32}
+
+// CHECK: define float @test_UnionF32(float %_1)
+#[no_mangle]
+pub fn test_UnionF32(_: UnionF32) -> UnionF32 { loop {} }
+
+pub union UnionF32F32{a:f32, b:f32}
+
+// CHECK: define float @test_UnionF32F32(float %_1)
+#[no_mangle]
+pub fn test_UnionF32F32(_: UnionF32F32) -> UnionF32F32 { loop {} }
+
+pub union UnionF32U32{a:f32, b:u32}
+
+// CHECK: define i32 @test_UnionF32U32(i32{{( %0)?}})
+#[no_mangle]
+pub fn test_UnionF32U32(_: UnionF32U32) -> UnionF32U32 { loop {} }
+
+pub union UnionU128{a:u128}
+// CHECK: define i128 @test_UnionU128(i128 %_1)
+#[no_mangle]
+pub fn test_UnionU128(_: UnionU128) -> UnionU128 { loop {} }
+
+#[repr(C)]
+pub union CUnionU128{a:u128}
+// CHECK: define void @test_CUnionU128({{%CUnionU128\*|ptr}} {{.*}} %_1)
+#[no_mangle]
+pub fn test_CUnionU128(_: CUnionU128) { loop {} }
+
+pub union UnionBool { b:bool }
+// CHECK: define noundef zeroext i1 @test_UnionBool(i8 %b)
+#[no_mangle]
+pub fn test_UnionBool(b: UnionBool) -> bool { unsafe { b.b }  }
+// CHECK: %0 = trunc i8 %b to i1