| // RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - -O1 %s | \ |
| // RUN: FileCheck -check-prefixes=CHECK,CHECK-OLD %s |
| // RUN: %clang_cc1 -triple x86_64-apple-darwin -new-struct-path-tbaa \ |
| // RUN: -emit-llvm -o - -O1 %s | \ |
| // RUN: FileCheck -check-prefixes=CHECK,CHECK-NEW %s |
| // |
| // Check that we generate TBAA metadata for struct copies correctly. |
| |
| struct A { |
| short s; |
| int i; |
| char c; |
| int j; |
| }; |
| |
| typedef A __attribute__((may_alias)) AA; |
| |
| void copy(A *a1, A *a2) { |
| // CHECK-LABEL: _Z4copyP1AS0_ |
| // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(16) %{{.*}}, ptr noundef nonnull align 4 dereferenceable(16) %{{.*}}, i64 16, i1 false) |
| // CHECK-OLD-SAME: !tbaa.struct [[TS:!.*]] |
| // CHECK-NEW-SAME: !tbaa [[TAG_A:![0-9]*]] |
| *a1 = *a2; |
| } |
| |
| struct B { |
| char c; |
| A a; |
| int i; |
| }; |
| |
| void copy2(B *b1, B *b2) { |
| // CHECK-LABEL: _Z5copy2P1BS0_ |
| // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(24) %{{.*}}, ptr noundef nonnull align 4 dereferenceable(24) %{{.*}}, i64 24, i1 false) |
| // CHECK-OLD-SAME: !tbaa.struct [[TS2:!.*]] |
| // CHECK-NEW-SAME: !tbaa [[TAG_B:![0-9]*]] |
| *b1 = *b2; |
| } |
| |
| struct S { |
| _Complex char cc; |
| _Complex int ci; |
| }; |
| |
| union U { |
| _Complex int ci; |
| S s; |
| }; |
| |
| void copy3(U *u1, U *u2) { |
| // CHECK-LABEL: _Z5copy3P1US0_ |
| // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(12) %{{.*}}, ptr noundef nonnull align 4 dereferenceable(12) %{{.*}}, i64 12, i1 false) |
| // CHECK-OLD-SAME: !tbaa.struct [[TS3:!.*]] |
| // CHECK-NEW-SAME: !tbaa [[TAG_U:![0-9]*]] |
| *u1 = *u2; |
| } |
| |
| // Make sure that zero-length bitfield works. |
| struct C { |
| char a; |
| int : 0; // Shall not be ignored; see r185018. |
| char b; |
| char c; |
| } __attribute__((ms_struct)); |
| |
| void copy4(C *c1, C *c2) { |
| // CHECK-LABEL: _Z5copy4P1CS0_ |
| // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 1 dereferenceable(3) {{.*}}, ptr noundef nonnull align 1 dereferenceable(3) {{.*}}, i64 3, i1 false) |
| // CHECK-OLD-SAME: !tbaa.struct [[TS4:!.*]] |
| // CHECK-NEW-SAME: !tbaa [[TAG_C:![0-9]*]] |
| *c1 = *c2; |
| } |
| |
| struct D { |
| char a; |
| int : 0; |
| char b; |
| char c; |
| }; |
| |
| void copy5(D *d1, D *d2) { |
| // CHECK-LABEL: _Z5copy5P1DS0_ |
| // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 1 dereferenceable(6) {{.*}}, ptr noundef nonnull align 1 dereferenceable(6) {{.*}}, i64 6, i1 false) |
| // CHECK-OLD-SAME: !tbaa.struct [[TS5:!.*]] |
| // CHECK-NEW-SAME: !tbaa [[TAG_D:![0-9]*]] |
| *d1 = *d2; |
| } |
| |
| void copy6(AA *a1, A *a2) { |
| // CHECK-LABEL: _Z5copy6P1AS0_ |
| // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(16) %{{.*}}, ptr noundef nonnull align 4 dereferenceable(16) %{{.*}}, i64 16, i1 false) |
| // CHECK-OLD-SAME: !tbaa.struct [[TS]] |
| // CHECK-NEW-SAME: !tbaa [[TAG_char:![0-9]*]] |
| *a1 = *a2; |
| } |
| |
| void copy7(A *a1, AA *a2) { |
| // CHECK-LABEL: _Z5copy7P1AS0_ |
| // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(16) %{{.*}}, ptr noundef nonnull align 4 dereferenceable(16) %{{.*}}, i64 16, i1 false) |
| // CHECK-OLD-SAME: !tbaa.struct [[TS]] |
| // CHECK-NEW-SAME: !tbaa [[TAG_char]] |
| *a1 = *a2; |
| } |
| |
| struct NamedBitfields { |
| signed f0 : 9; |
| unsigned f1 : 2; |
| char f2; |
| double f3; |
| }; |
| |
| void copy8(NamedBitfields *a1, NamedBitfields *a2) { |
| // CHECK-LABEL: _Z5copy8P14NamedBitfieldsS0_ |
| // CHECK: 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), |
| // CHECK-OLD-SAME: !tbaa.struct [[TS6:!.*]] |
| // CHECK-NEW-SAME: !tbaa [[TAG_NamedBitfields:!.+]], !tbaa.struct |
| *a1 = *a2; |
| } |
| |
| struct NamedBitfields2 { |
| char a, b, c; |
| signed f0 : 3; |
| unsigned f1 : 4; |
| char f2 : 7; |
| double f3; |
| unsigned f4 : 4; |
| }; |
| |
| void copy9(NamedBitfields2 *a1, NamedBitfields2 *a2) { |
| // CHECK-LABEL: _Z5copy9P15NamedBitfields2S0_ |
| // CHECK: tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(24) %a1, ptr noundef nonnull align 8 dereferenceable(24) %a2, i64 24, i1 false), |
| // CHECK-OLD-SAME: !tbaa.struct [[TS7:!.*]] |
| // CHECK-NEW-SAME: !tbaa [[TAG_NamedBitfields2:!.+]], !tbaa.struct |
| *a1 = *a2; |
| } |
| |
| // Test with unnamed bitfield at the start and in between named ones.. |
| struct NamedBitfields3 { |
| unsigned : 11; |
| signed f0 : 9; |
| char : 2; |
| int f1 : 2; |
| double f2; |
| }; |
| |
| void copy10(NamedBitfields3 *a1, NamedBitfields3 *a2) { |
| // CHECK-LABEL: _Z6copy10P15NamedBitfields3S0_ |
| // CHECK: 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), |
| // CHECK-OLD-SAME: !tbaa.struct [[TS8:!.*]] |
| // CHECK-NEW-SAME: !tbaa [[TAG_NamedBitfields3:!.+]], !tbaa.struct |
| *a1 = *a2; |
| } |
| |
| union U2 { |
| double d; |
| float f; |
| }; |
| |
| struct UnionMember1 { |
| U2 u; |
| int p; |
| }; |
| |
| void copy11(UnionMember1 *a1, UnionMember1 *a2) { |
| // CHECK-LABEL: _Z6copy11P12UnionMember1S0_ |
| // CHECK: 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), |
| // CHECK-OLD-SAME: !tbaa.struct [[TS9:!.*]] |
| // CHECK-NEW-SAME: !tbaa [[TAG_UnionMember1:!.+]], !tbaa.struct |
| *a1 = *a2; |
| } |
| |
| struct UnionMember2 { |
| int p; |
| U2 u; |
| }; |
| |
| void copy12(UnionMember2 *a1, UnionMember2 *a2) { |
| // CHECK-LABEL: _Z6copy12P12UnionMember2S0_ |
| // CHECK: 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), |
| // CHECK-OLD-SAME: !tbaa.struct [[TS10:!.*]] |
| // CHECK-NEW-SAME: !tbaa [[TAG_UnionMember2:!.+]], !tbaa.struct |
| |
| *a1 = *a2; |
| } |
| |
| // CHECK-OLD: [[TS]] = !{i64 0, i64 2, !{{.*}}, i64 4, i64 4, !{{.*}}, i64 8, i64 1, !{{.*}}, i64 12, i64 4, !{{.*}}} |
| // CHECK-OLD: [[CHAR:!.*]] = !{!"omnipotent char", !{{.*}}} |
| // CHECK-OLD: [[TAG_INT:!.*]] = !{[[INT:!.*]], [[INT]], i64 0} |
| // CHECK-OLD: [[INT]] = !{!"int", [[CHAR]] |
| // CHECK-OLD: [[TAG_CHAR:!.*]] = !{[[CHAR]], [[CHAR]], i64 0} |
| // (offset, size) = (0,1) char; (4,2) short; (8,4) int; (12,1) char; (16,4) int; (20,4) int |
| // CHECK-OLD: [[TS2]] = !{i64 0, i64 1, !{{.*}}, i64 4, i64 2, !{{.*}}, i64 8, i64 4, !{{.*}}, i64 12, i64 1, !{{.*}}, i64 16, i64 4, {{.*}}, i64 20, i64 4, {{.*}}} |
| // (offset, size) = (0,8) char; (0,2) char; (4,8) char |
| // CHECK-OLD: [[TS3]] = !{i64 0, i64 12, [[TAG_CHAR]]} |
| // CHECK-OLD: [[TS4]] = !{i64 0, i64 1, [[TAG_CHAR]], i64 1, i64 1, [[TAG_CHAR]], i64 2, i64 1, [[TAG_CHAR]]} |
| // CHECK-OLD: [[TS5]] = !{i64 0, i64 1, [[TAG_CHAR]], i64 4, i64 1, [[TAG_CHAR]], i64 5, i64 1, [[TAG_CHAR]]} |
| // CHECK-OLD: [[TS6]] = !{i64 0, i64 2, [[TAG_CHAR]], i64 2, i64 1, [[TAG_CHAR]], i64 8, i64 8, [[TAG_DOUBLE:!.+]]} |
| // CHECK-OLD: [[TAG_DOUBLE]] = !{[[DOUBLE:!.+]], [[DOUBLE]], i64 0} |
| // CHECK-OLD [[DOUBLE]] = !{!"double", [[CHAR]], i64 0} |
| // CHECK-OLD: [[TS7]] = !{i64 0, i64 1, [[TAG_CHAR]], i64 1, i64 1, [[TAG_CHAR]], i64 2, i64 1, [[TAG_CHAR]], i64 3, i64 2, [[TAG_CHAR]], i64 8, i64 8, [[TAG_DOUBLE]], i64 16, i64 1, [[TAG_CHAR]]} |
| // CHECK-OLD: [[TS8]] = !{i64 0, i64 4, [[TAG_CHAR]], i64 8, i64 8, [[TAG_DOUBLE]]} |
| // CHECK-OLD: [[TS9]] = !{i64 0, i64 8, [[TAG_CHAR]], i64 8, i64 4, [[TAG_INT]]} |
| // CHECK-OLD: [[TS10]] = !{i64 0, i64 4, [[TAG_INT]], i64 8, i64 8, [[TAG_CHAR]]} |
| |
| // CHECK-NEW-DAG: [[TYPE_char:!.*]] = !{{{.*}}, i64 1, !"omnipotent char"} |
| // CHECK-NEW-DAG: [[TAG_char]] = !{[[TYPE_char]], [[TYPE_char]], i64 0, i64 0} |
| // CHECK-NEW-DAG: [[TYPE_short:!.*]] = !{[[TYPE_char]], i64 2, !"short"} |
| // CHECK-NEW-DAG: [[TYPE_int:!.*]] = !{[[TYPE_char]], i64 4, !"int"} |
| // CHECK-NEW-DAG: [[TYPE_A:!.*]] = !{[[TYPE_char]], i64 16, !"_ZTS1A", [[TYPE_short]], i64 0, i64 2, [[TYPE_int]], i64 4, i64 4, [[TYPE_char]], i64 8, i64 1, [[TYPE_int]], i64 12, i64 4} |
| // CHECK-NEW-DAG: [[TAG_A]] = !{[[TYPE_A]], [[TYPE_A]], i64 0, i64 16} |
| // CHECK-NEW-DAG: [[TYPE_B:!.*]] = !{[[TYPE_char]], i64 24, !"_ZTS1B", [[TYPE_char]], i64 0, i64 1, [[TYPE_A]], i64 4, i64 16, [[TYPE_int]], i64 20, i64 4} |
| // CHECK-NEW-DAG: [[TAG_B]] = !{[[TYPE_B]], [[TYPE_B]], i64 0, i64 24} |
| // CHECK-NEW-DAG: [[TAG_U]] = !{[[TYPE_char]], [[TYPE_char]], i64 0, i64 12} |
| // CHECK-NEW-DAG: [[TYPE_C:!.*]] = !{[[TYPE_char]], i64 3, !"_ZTS1C", [[TYPE_char]], i64 0, i64 1, [[TYPE_char]], i64 1, i64 1, [[TYPE_char]], i64 2, i64 1} |
| // CHECK-NEW-DAG: [[TAG_C]] = !{[[TYPE_C]], [[TYPE_C]], i64 0, i64 3} |
| // CHECK-NEW-DAG: [[TYPE_D:!.*]] = !{[[TYPE_char]], i64 6, !"_ZTS1D", [[TYPE_char]], i64 0, i64 1, [[TYPE_char]], i64 4, i64 1, [[TYPE_char]], i64 5, i64 1} |
| // CHECK-NEW-DAG: [[TAG_D]] = !{[[TYPE_D]], [[TYPE_D]], i64 0, i64 6} |
| // CHECK-NEW-DAG: [[TAG_NamedBitfields]] = !{[[TYPE_NamedBitfields:!.+]], [[TYPE_NamedBitfields]], i64 0, i64 16} |
| // CHECK-NEW-DAG: [[TYPE_NamedBitfields]] = !{[[TYPE_char]], i64 16, !"_ZTS14NamedBitfields", [[TYPE_int]], i64 0, i64 4, [[TYPE_int]], i64 1, i64 4, [[TYPE_char]], i64 2, i64 1, [[TYPE_double:!.+]], i64 8, i64 8} |
| // CHECK-NEW-DAG: [[TYPE_double]] = !{[[TYPE_char]], i64 8, !"double"} |
| // CHECK-NEW-DAG: [[TAG_NamedBitfields2]] = !{[[TYPE_NamedBitfields2:!.+]], [[TYPE_NamedBitfields2]], i64 0, i64 24} |
| // CHECK-NEW-DAG: [[TYPE_NamedBitfields2]] = !{[[TYPE_char]], i64 24, !"_ZTS15NamedBitfields2", [[TYPE_char]], i64 0, i64 1, [[TYPE_char]], i64 1, i64 1, [[TYPE_char]], i64 2, i64 1, [[TYPE_int]], i64 3, i64 4, [[TYPE_int]], i64 3, i64 4, [[TYPE_char]], i64 4, i64 1, [[TYPE_double]], i64 8, i64 8, [[TYPE_int]], i64 16, i64 4} |
| // CHECK-NEW-DAG: [[TAG_NamedBitfields3]] = !{[[TYPE_NamedBitfields3:!.+]], [[TYPE_NamedBitfields3]], i64 0, i64 16} |
| // CHECK-NEW-DAG: [[TYPE_NamedBitfields3]] = !{[[TYPE_char]], i64 16, !"_ZTS15NamedBitfields3", [[TYPE_int]], i64 1, i64 4, [[TYPE_int]], i64 2, i64 4, [[TYPE_double]], i64 8, i64 8} |
| // CHECK-NEW-DAG: [[TAG_UnionMember1]] = !{[[TYPE_UnionMember1:!.+]], [[TYPE_UnionMember1]], i64 0, i64 16} |
| // CHECK-NEW-DAG: [[TYPE_UnionMember1]] = !{[[TYPE_char]], i64 16, !"_ZTS12UnionMember1", [[TYPE_char]], i64 0, i64 8, [[TYPE_int]], i64 8, i64 4} |
| // CHECK-NEW-DAG: [[TAG_UnionMember2]] = !{[[TYPE_UnionMember2:!.+]], [[TYPE_UnionMember2]], i64 0, i64 16} |
| // CHECK-NEW-DAG: [[TYPE_UnionMember2]] = !{[[TYPE_char]], i64 16, !"_ZTS12UnionMember2", [[TYPE_int]], i64 0, i64 4, [[TYPE_char]], i64 8, i64 8} |