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| author | Tshepang Mbambo <hopsi@tuta.io> | 2025-07-25 05:36:15 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-07-25 05:36:15 +0200 |
| commit | e69303f372a6d810e02b2c3cb9c3daf9198edde4 (patch) | |
| tree | f1eb971f65244cd1e6781c87b5c81de8c18a47b8 /tests/codegen-llvm/array-codegen.rs | |
| parent | 1ecb68d48c2cd1a8c02cd7506274aae31e57c13e (diff) | |
| parent | e5b1e7d192780463c35d3a08ad79c6764119297e (diff) | |
| download | rust-e69303f372a6d810e02b2c3cb9c3daf9198edde4.tar.gz rust-e69303f372a6d810e02b2c3cb9c3daf9198edde4.zip | |
Merge pull request #2518 from rust-lang/rustc-pull
Rustc pull update
Diffstat (limited to 'tests/codegen-llvm/array-codegen.rs')
| -rw-r--r-- | tests/codegen-llvm/array-codegen.rs | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/tests/codegen-llvm/array-codegen.rs b/tests/codegen-llvm/array-codegen.rs new file mode 100644 index 00000000000..9b0c6e8c347 --- /dev/null +++ b/tests/codegen-llvm/array-codegen.rs @@ -0,0 +1,62 @@ +//@ compile-flags: -Copt-level=3 -C no-prepopulate-passes + +#![crate_type = "lib"] + +// CHECK-LABEL: @array_load +#[no_mangle] +pub fn array_load(a: &[u8; 4]) -> [u8; 4] { + // CHECK-NOT: alloca + // CHECK: %[[ALLOCA:.+]] = alloca [4 x i8], align 1 + // CHECK-NOT: alloca + // CHECK: call void @llvm.memcpy.{{.+}}(ptr align 1 %[[ALLOCA]], ptr align 1 %a, {{.+}} 4, i1 false) + // CHECK: %[[TEMP:.+]] = load i32, ptr %[[ALLOCA]], align 1 + // CHECK: ret i32 %[[TEMP]] + *a +} + +// CHECK-LABEL: @array_store +#[no_mangle] +pub fn array_store(a: [u8; 4], p: &mut [u8; 4]) { + // CHECK-NOT: alloca + // CHECK: %[[TEMP:.+]] = alloca [4 x i8], [[TEMPALIGN:align [0-9]+]] + // CHECK-NOT: alloca + // CHECK: %a = alloca [4 x i8] + // CHECK-NOT: alloca + // store i32 %0, ptr %[[TEMP]] + // CHECK: call void @llvm.memcpy.{{.+}}(ptr align 1 %a, ptr [[TEMPALIGN]] %[[TEMP]], {{.+}} 4, i1 false) + // CHECK: call void @llvm.memcpy.{{.+}}(ptr align 1 %p, ptr align 1 %a, {{.+}} 4, i1 false) + *p = a; +} + +// CHECK-LABEL: @array_copy +#[no_mangle] +pub fn array_copy(a: &[u8; 4], p: &mut [u8; 4]) { + // CHECK-NOT: alloca + // CHECK: %[[LOCAL:.+]] = alloca [4 x i8], align 1 + // CHECK-NOT: alloca + // CHECK: call void @llvm.memcpy.{{.+}}(ptr align 1 %[[LOCAL]], ptr align 1 %a, {{.+}} 4, i1 false) + // CHECK: call void @llvm.memcpy.{{.+}}(ptr align 1 %p, ptr align 1 %[[LOCAL]], {{.+}} 4, i1 false) + *p = *a; +} + +// CHECK-LABEL: @array_copy_1_element +#[no_mangle] +pub fn array_copy_1_element(a: &[u8; 1], p: &mut [u8; 1]) { + // CHECK-NOT: alloca + // CHECK: %[[LOCAL:.+]] = alloca [1 x i8], align 1 + // CHECK-NOT: alloca + // CHECK: call void @llvm.memcpy.{{.+}}(ptr align 1 %[[LOCAL]], ptr align 1 %a, {{.+}} 1, i1 false) + // CHECK: call void @llvm.memcpy.{{.+}}(ptr align 1 %p, ptr align 1 %[[LOCAL]], {{.+}} 1, i1 false) + *p = *a; +} + +// CHECK-LABEL: @array_copy_2_elements +#[no_mangle] +pub fn array_copy_2_elements(a: &[u8; 2], p: &mut [u8; 2]) { + // CHECK-NOT: alloca + // CHECK: %[[LOCAL:.+]] = alloca [2 x i8], align 1 + // CHECK-NOT: alloca + // CHECK: call void @llvm.memcpy.{{.+}}(ptr align 1 %[[LOCAL]], ptr align 1 %a, {{.+}} 2, i1 false) + // CHECK: call void @llvm.memcpy.{{.+}}(ptr align 1 %p, ptr align 1 %[[LOCAL]], {{.+}} 2, i1 false) + *p = *a; +} |