Auto merge of #143833 - scottmcm:final-mcp-838, r=compiler-errors

Ban projecting into SIMD types [MCP838]

Closes https://github.com/rust-lang/compiler-team/issues/838

The actual compiler change here is tiny; there's just a bazillion tests to update.

~~Since I'm sure I've missed some, for now~~
~~r ghost~~

try-job: test-various
try-job: x86_64-gnu-nopt

1 files changed, 0 insertions, 31 deletions

diff --git a/tests/codegen/simd/project-to-simd-array-field.rs b/tests/codegen/simd/project-to-simd-array-field.rs
deleted file mode 100644
index 29fab640633..00000000000
--- a/tests/codegen/simd/project-to-simd-array-field.rs
+++ /dev/null
@@ -1,31 +0,0 @@
-//@compile-flags: -Copt-level=3
-
-#![crate_type = "lib"]
-#![feature(repr_simd, core_intrinsics)]
-
-#[allow(non_camel_case_types)]
-#[derive(Clone, Copy)]
-#[repr(simd)]
-struct i32x4([i32; 4]);
-
-#[inline(always)]
-fn to_array4(a: i32x4) -> [i32; 4] {
-    a.0
-}
-
-// CHECK-LABEL: simd_add_self_then_return_array(
-// CHECK-SAME: ptr{{.+}}sret{{.+}}%[[RET:.+]],
-// CHECK-SAME: ptr{{.+}}%a)
-#[no_mangle]
-pub fn simd_add_self_then_return_array(a: &i32x4) -> [i32; 4] {
-    // It would be nice to just ban `.0` into simd types,
-    // but until we do this has to keep working.
-    // See also <https://github.com/rust-lang/rust/issues/105439>
-
-    // CHECK: %[[T1:.+]] = load <4 x i32>, ptr %a
-    // CHECK: %[[T2:.+]] = shl <4 x i32> %[[T1]], {{splat \(i32 1\)|<i32 1, i32 1, i32 1, i32 1>}}
-    // CHECK: store <4 x i32> %[[T2]], ptr %[[RET]]
-    let a = *a;
-    let b = unsafe { core::intrinsics::simd::simd_add(a, a) };
-    to_array4(b)
-}