diff options
Diffstat (limited to 'tests/codegen/mem-replace-big-type.rs')
| -rw-r--r-- | tests/codegen/mem-replace-big-type.rs | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/tests/codegen/mem-replace-big-type.rs b/tests/codegen/mem-replace-big-type.rs index f6898e2f7..c6b920cf5 100644 --- a/tests/codegen/mem-replace-big-type.rs +++ b/tests/codegen/mem-replace-big-type.rs @@ -11,7 +11,9 @@ #[repr(C, align(8))] pub struct Big([u64; 7]); pub fn replace_big(dst: &mut Big, src: Big) -> Big { - // Before the `read_via_copy` intrinsic, this emitted six `memcpy`s. + // Back in 1.68, this emitted six `memcpy`s. + // `read_via_copy` in 1.69 got that down to three. + // `write_via_move` and nvro get this down to the essential two. std::mem::replace(dst, src) } @@ -22,15 +24,10 @@ pub fn replace_big(dst: &mut Big, src: Big) -> Big { // For a large type, we expect exactly three `memcpy`s // CHECK-LABEL: define internal void @{{.+}}mem{{.+}}replace{{.+}}sret(%Big) - // CHECK-NOT: alloca - // CHECK: alloca %Big - // CHECK-NOT: alloca - // CHECK-NOT: call void @llvm.memcpy - // CHECK: call void @llvm.memcpy.{{.+}}({{i8\*|ptr}} align 8 %{{.*}}, {{i8\*|ptr}} align 8 %{{.*}}, i{{.*}} 56, i1 false) - // CHECK-NOT: call void @llvm.memcpy - // CHECK: call void @llvm.memcpy.{{.+}}({{i8\*|ptr}} align 8 %{{.*}}, {{i8\*|ptr}} align 8 %{{.*}}, i{{.*}} 56, i1 false) - // CHECK-NOT: call void @llvm.memcpy - // CHECK: call void @llvm.memcpy.{{.+}}({{i8\*|ptr}} align 8 %{{.*}}, {{i8\*|ptr}} align 8 %{{.*}}, i{{.*}} 56, i1 false) - // CHECK-NOT: call void @llvm.memcpy +// CHECK-NOT: call void @llvm.memcpy +// CHECK: call void @llvm.memcpy.{{.+}}({{i8\*|ptr}} align 8 %0, {{i8\*|ptr}} align 8 %dest, i{{.*}} 56, i1 false) +// CHECK-NOT: call void @llvm.memcpy +// CHECK: call void @llvm.memcpy.{{.+}}({{i8\*|ptr}} align 8 %dest, {{i8\*|ptr}} align 8 %src, i{{.*}} 56, i1 false) +// CHECK-NOT: call void @llvm.memcpy // CHECK-NOT: call void @llvm.memcpy |