From 60a523de9207d0465a32cee5fd96820b116ff64c Mon Sep 17 00:00:00 2001
From: Hans Kratz <hans@appfour.com>
Date: Sun, 18 Jul 2021 13:06:13 +0200
Subject: Remove 0-sized paddings from field loyout tests.

---
 src/test/codegen/align-enum.rs   |  2 +-
 src/test/codegen/align-struct.rs | 10 +++++-----
 2 files changed, 6 insertions(+), 6 deletions(-)

(limited to 'src/test/codegen')

diff --git a/src/test/codegen/align-enum.rs b/src/test/codegen/align-enum.rs
index 0f2cf5a7616..441cd04690e 100644
--- a/src/test/codegen/align-enum.rs
+++ b/src/test/codegen/align-enum.rs
@@ -8,7 +8,7 @@ pub enum Align64 {
     A(u32),
     B(u32),
 }
-// CHECK: %Align64 = type { [0 x i32], i32, [15 x i32] }
+// CHECK: %Align64 = type { i32, [15 x i32] }
 
 pub struct Nested64 {
     a: u8,
diff --git a/src/test/codegen/align-struct.rs b/src/test/codegen/align-struct.rs
index 82eec67af0f..acc5a2d5499 100644
--- a/src/test/codegen/align-struct.rs
+++ b/src/test/codegen/align-struct.rs
@@ -5,7 +5,7 @@
 
 #[repr(align(64))]
 pub struct Align64(i32);
-// CHECK: %Align64 = type { [0 x i32], i32, [15 x i32] }
+// CHECK: %Align64 = type { i32, [15 x i32] }
 
 pub struct Nested64 {
     a: Align64,
@@ -13,20 +13,20 @@ pub struct Nested64 {
     c: i32,
     d: i8,
 }
-// CHECK: %Nested64 = type { [0 x i64], %Align64, [0 x i32], i32, [0 x i32], i32, [0 x i8], i8, [55 x i8] }
+// CHECK: %Nested64 = type { %Align64, i32, i32, i8, [55 x i8] }
 
 pub enum Enum4 {
     A(i32),
     B(i32),
 }
-// CHECK: %"Enum4::A" = type { [1 x i32], i32, [0 x i32] }
+// CHECK: %"Enum4::A" = type { [1 x i32], i32 }
 
 pub enum Enum64 {
     A(Align64),
     B(i32),
 }
-// CHECK: %Enum64 = type { [0 x i32], i32, [31 x i32] }
-// CHECK: %"Enum64::A" = type { [8 x i64], %Align64, [0 x i64] }
+// CHECK: %Enum64 = type { i32, [31 x i32] }
+// CHECK: %"Enum64::A" = type { [8 x i64], %Align64 }
 
 // CHECK-LABEL: @align64
 #[no_mangle]
-- 
cgit 1.4.1-3-g733a5


From 4a8202c4a68ec6161dbc31dcb5b0ec51d84c9d87 Mon Sep 17 00:00:00 2001
From: Hans Kratz <hans@appfour.com>
Date: Wed, 21 Jul 2021 13:20:35 +0200
Subject: Add testcase for proper LLVM representation of SIMD types.

Testcase to make sure that no 0-sized padding is inserted in structs and that structs are represented as expected by Neon intrinsics in LLVM.
---
 src/test/codegen/unpadded-simd.rs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 src/test/codegen/unpadded-simd.rs

(limited to 'src/test/codegen')

diff --git a/src/test/codegen/unpadded-simd.rs b/src/test/codegen/unpadded-simd.rs
new file mode 100644
index 00000000000..eb44dbd9313
--- /dev/null
+++ b/src/test/codegen/unpadded-simd.rs
@@ -0,0 +1,14 @@
+// Make sure that no 0-sized padding is inserted in structs and that
+// structs are represented as expected by Neon intrinsics in LLVM.
+// See #87254.
+
+#![crate_type = "lib"]
+#![feature(repr_simd)]
+
+#[derive(Copy, Clone, Debug)]
+#[repr(simd)]
+pub struct int16x4_t(pub i16, pub i16, pub i16, pub i16);
+
+#[derive(Copy, Clone, Debug)]
+pub struct int16x4x2_t(pub int16x4_t, pub int16x4_t);
+// CHECK: %int16x4x2_t = type { <4 x i16>, <4 x i16> }
-- 
cgit 1.4.1-3-g733a5