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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
commit | a4b7ed7a42c716ab9f05e351f003d589124fd55d (patch) | |
tree | b620cd3f223850b28716e474e80c58059dca5dd4 /tests/codegen/stores.rs | |
parent | Adding upstream version 1.67.1+dfsg1. (diff) | |
download | rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.tar.xz rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.zip |
Adding upstream version 1.68.2+dfsg1.upstream/1.68.2+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/codegen/stores.rs')
-rw-r--r-- | tests/codegen/stores.rs | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/tests/codegen/stores.rs b/tests/codegen/stores.rs new file mode 100644 index 000000000..837256e53 --- /dev/null +++ b/tests/codegen/stores.rs @@ -0,0 +1,35 @@ +// compile-flags: -C no-prepopulate-passes +// + +#![crate_type = "lib"] + +pub struct Bytes { + a: u8, + b: u8, + c: u8, + d: u8, +} + +// CHECK-LABEL: small_array_alignment +// The array is stored as i32, but its alignment is lower, go with 1 byte to avoid target +// dependent alignment +#[no_mangle] +pub fn small_array_alignment(x: &mut [i8; 4], y: [i8; 4]) { +// CHECK: [[TMP:%.+]] = alloca i32 +// CHECK: %y = alloca [4 x i8] +// CHECK: store i32 %0, {{i32\*|ptr}} [[TMP]] +// CHECK: call void @llvm.memcpy.{{.*}}({{i8\*|ptr}} align 1 {{.+}}, {{i8\*|ptr}} align 4 {{.+}}, i{{[0-9]+}} 4, i1 false) + *x = y; +} + +// CHECK-LABEL: small_struct_alignment +// The struct is stored as i32, but its alignment is lower, go with 1 byte to avoid target +// dependent alignment +#[no_mangle] +pub fn small_struct_alignment(x: &mut Bytes, y: Bytes) { +// CHECK: [[TMP:%.+]] = alloca i32 +// CHECK: %y = alloca %Bytes +// CHECK: store i32 %0, {{i32\*|ptr}} [[TMP]] +// CHECK: call void @llvm.memcpy.{{.*}}({{i8\*|ptr}} align 1 {{.+}}, {{i8\*|ptr}} align 4 {{.+}}, i{{[0-9]+}} 4, i1 false) + *x = y; +} |