| // RUN: %clang_cc1 -triple aarch64_be-apple-darwin -emit-llvm -o - -O1 %s | \ | |
| // RUN: FileCheck -check-prefixes=CHECK %s | |
| // RUN: %clang_cc1 -triple aarch64-apple-darwin -emit-llvm -o - -O1 %s | \ | |
| // RUN: FileCheck -check-prefixes=CHECK %s | |
| // | |
| // Check that TBAA metadata for structs containing bitfields is | |
| // consistent between big and little endian layouts. | |
| struct NamedBitfields { | |
| int f1 : 8; | |
| int f2 : 8; | |
| unsigned f3 : 1; | |
| unsigned f4 : 15; | |
| int f5; | |
| double f6; | |
| }; | |
| // CHECK-LABEL: _Z4copyP14NamedBitfieldsS0_ | |
| // CHECK-SAME: ptr noundef writeonly captures(none) initializes((0, 16)) [[A1:%.*]], ptr noundef readonly captures(none) [[A2:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] { | |
| // CHECK-NEXT: entry: | |
| // CHECK-NEXT: tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) [[A1]], ptr noundef nonnull align 8 dereferenceable(16) [[A2]], i64 16, i1 false), !tbaa.struct [[TBAA_STRUCT6:![0-9]+]] | |
| // CHECK-NEXT: ret void | |
| // | |
| void copy(NamedBitfields *a1, NamedBitfields *a2) { | |
| *a1 = *a2; | |
| } | |
| // CHECK: [[META2:![0-9]+]] = !{[[META3:![0-9]+]], [[META3]], i64 0} | |
| // CHECK: [[META3]] = !{!"int", [[META4:![0-9]+]], i64 0} | |
| // CHECK: [[META4]] = !{!"omnipotent char", [[META5:![0-9]+]], i64 0} | |
| // CHECK: [[META5]] = !{!"Simple C++ TBAA"} | |
| // CHECK: [[TBAA_STRUCT6]] = !{i64 0, i64 4, [[META7:![0-9]+]], i64 4, i64 4, [[META2:![0-9]+]], i64 8, i64 8, [[META8:![0-9]+]]} | |
| // CHECK: [[META7]] = !{[[META4:![0-9]+]], [[META4]], i64 0} | |
| // CHECK: [[META8]] = !{[[META9:![0-9]+]], [[META9]], i64 0} | |
| // CHECK: [[META9]] = !{!"double", [[META4]], i64 0} |