| // RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 -no-struct-path-tbaa -disable-llvm-passes %s -emit-llvm -o - | FileCheck %s |
| // RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 -disable-llvm-passes %s -emit-llvm -o - | FileCheck %s -check-prefixes=PATH,OLD-PATH |
| // RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 -new-struct-path-tbaa -disable-llvm-passes %s -emit-llvm -o - | FileCheck %s -check-prefixes=PATH,NEW-PATH |
| // RUN: %clang_cc1 -triple x86_64-apple-darwin -O0 -disable-llvm-passes %s -emit-llvm -o - | FileCheck %s -check-prefix=NO-TBAA |
| // RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 -relaxed-aliasing -disable-llvm-passes %s -emit-llvm -o - | FileCheck %s -check-prefix=NO-TBAA |
| // Test TBAA metadata generated by front-end. |
| // |
| // NO-TBAA-NOT: !tbaa |
| |
| typedef unsigned char uint8_t; |
| typedef unsigned short uint16_t; |
| typedef unsigned int uint32_t; |
| typedef unsigned long long uint64_t; |
| typedef struct |
| { |
| uint16_t f16; |
| uint32_t f32; |
| uint16_t f16_2; |
| uint32_t f32_2; |
| } StructA; |
| typedef struct |
| { |
| uint16_t f16; |
| StructA a; |
| uint32_t f32; |
| } StructB; |
| typedef struct |
| { |
| uint16_t f16; |
| StructB b; |
| uint32_t f32; |
| } StructC; |
| typedef struct |
| { |
| uint16_t f16; |
| StructB b; |
| uint32_t f32; |
| uint8_t f8; |
| } StructD; |
| |
| typedef struct |
| { |
| uint16_t f16; |
| uint32_t f32; |
| } StructS; |
| typedef struct |
| { |
| uint16_t f16; |
| uint32_t f32; |
| } StructS2; |
| |
| uint32_t g(uint32_t *s, StructA *A, uint64_t count) { |
| // CHECK-LABEL: define i32 @_Z1g |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32:!.*]] |
| // CHECK: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH-LABEL: define i32 @_Z1g |
| // PATH: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32:!.*]] |
| // PATH: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_A_f32:!.*]] |
| *s = 1; |
| A->f32 = 4; |
| return *s; |
| } |
| |
| uint32_t g2(uint32_t *s, StructA *A, uint64_t count) { |
| // CHECK-LABEL: define i32 @_Z2g2 |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i16 4, i16* %{{.*}}, align 4, !tbaa [[TAG_i16:!.*]] |
| // PATH-LABEL: define i32 @_Z2g2 |
| // PATH: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH: store i16 4, i16* %{{.*}}, align 4, !tbaa [[TAG_A_f16:!.*]] |
| *s = 1; |
| A->f16 = 4; |
| return *s; |
| } |
| |
| uint32_t g3(StructA *A, StructB *B, uint64_t count) { |
| // CHECK-LABEL: define i32 @_Z2g3 |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH-LABEL: define i32 @_Z2g3 |
| // PATH: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_A_f32]] |
| // PATH: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_B_a_f32:!.*]] |
| A->f32 = 1; |
| B->a.f32 = 4; |
| return A->f32; |
| } |
| |
| uint32_t g4(StructA *A, StructB *B, uint64_t count) { |
| // CHECK-LABEL: define i32 @_Z2g4 |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i16 4, i16* %{{.*}}, align 4, !tbaa [[TAG_i16]] |
| // PATH-LABEL: define i32 @_Z2g4 |
| // PATH: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_A_f32]] |
| // PATH: store i16 4, i16* %{{.*}}, align 4, !tbaa [[TAG_B_a_f16:!.*]] |
| A->f32 = 1; |
| B->a.f16 = 4; |
| return A->f32; |
| } |
| |
| uint32_t g5(StructA *A, StructB *B, uint64_t count) { |
| // CHECK-LABEL: define i32 @_Z2g5 |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH-LABEL: define i32 @_Z2g5 |
| // PATH: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_A_f32]] |
| // PATH: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_B_f32:!.*]] |
| A->f32 = 1; |
| B->f32 = 4; |
| return A->f32; |
| } |
| |
| uint32_t g6(StructA *A, StructB *B, uint64_t count) { |
| // CHECK-LABEL: define i32 @_Z2g6 |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH-LABEL: define i32 @_Z2g6 |
| // PATH: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_A_f32]] |
| // PATH: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_B_a_f32_2:!.*]] |
| A->f32 = 1; |
| B->a.f32_2 = 4; |
| return A->f32; |
| } |
| |
| uint32_t g7(StructA *A, StructS *S, uint64_t count) { |
| // CHECK-LABEL: define i32 @_Z2g7 |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH-LABEL: define i32 @_Z2g7 |
| // PATH: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_A_f32]] |
| // PATH: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_S_f32:!.*]] |
| A->f32 = 1; |
| S->f32 = 4; |
| return A->f32; |
| } |
| |
| uint32_t g8(StructA *A, StructS *S, uint64_t count) { |
| // CHECK-LABEL: define i32 @_Z2g8 |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i16 4, i16* %{{.*}}, align 4, !tbaa [[TAG_i16]] |
| // PATH-LABEL: define i32 @_Z2g8 |
| // PATH: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_A_f32]] |
| // PATH: store i16 4, i16* %{{.*}}, align 4, !tbaa [[TAG_S_f16:!.*]] |
| A->f32 = 1; |
| S->f16 = 4; |
| return A->f32; |
| } |
| |
| uint32_t g9(StructS *S, StructS2 *S2, uint64_t count) { |
| // CHECK-LABEL: define i32 @_Z2g9 |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH-LABEL: define i32 @_Z2g9 |
| // PATH: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_S_f32]] |
| // PATH: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_S2_f32:!.*]] |
| S->f32 = 1; |
| S2->f32 = 4; |
| return S->f32; |
| } |
| |
| uint32_t g10(StructS *S, StructS2 *S2, uint64_t count) { |
| // CHECK-LABEL: define i32 @_Z3g10 |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i16 4, i16* %{{.*}}, align 4, !tbaa [[TAG_i16]] |
| // PATH-LABEL: define i32 @_Z3g10 |
| // PATH: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_S_f32]] |
| // PATH: store i16 4, i16* %{{.*}}, align 4, !tbaa [[TAG_S2_f16:!.*]] |
| S->f32 = 1; |
| S2->f16 = 4; |
| return S->f32; |
| } |
| |
| uint32_t g11(StructC *C, StructD *D, uint64_t count) { |
| // CHECK-LABEL: define i32 @_Z3g11 |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH-LABEL: define i32 @_Z3g11 |
| // PATH: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_C_b_a_f32:!.*]] |
| // PATH: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_D_b_a_f32:!.*]] |
| C->b.a.f32 = 1; |
| D->b.a.f32 = 4; |
| return C->b.a.f32; |
| } |
| |
| uint32_t g12(StructC *C, StructD *D, uint64_t count) { |
| // CHECK-LABEL: define i32 @_Z3g12 |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // TODO: differentiate the two accesses. |
| // PATH-LABEL: define i32 @_Z3g12 |
| // PATH: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_B_a_f32]] |
| // PATH: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_B_a_f32]] |
| StructB *b1 = &(C->b); |
| StructB *b2 = &(D->b); |
| // b1, b2 have different context. |
| b1->a.f32 = 1; |
| b2->a.f32 = 4; |
| return b1->a.f32; |
| } |
| |
| // Make sure that zero-length bitfield works. |
| #define ATTR __attribute__ ((ms_struct)) |
| struct five { |
| char a; |
| int :0; /* ignored; prior field is not a bitfield. */ |
| char b; |
| char c; |
| } ATTR; |
| char g13(struct five *a, struct five *b) { |
| return a->b; |
| // CHECK-LABEL: define signext i8 @_Z3g13 |
| // CHECK: load i8, i8* %{{.*}}, align 1, !tbaa [[TAG_char:!.*]] |
| // PATH-LABEL: define signext i8 @_Z3g13 |
| // PATH: load i8, i8* %{{.*}}, align 1, !tbaa [[TAG_five_b:!.*]] |
| } |
| |
| struct six { |
| char a; |
| int :0; |
| char b; |
| char c; |
| }; |
| char g14(struct six *a, struct six *b) { |
| // CHECK-LABEL: define signext i8 @_Z3g14 |
| // CHECK: load i8, i8* %{{.*}}, align 1, !tbaa [[TAG_char]] |
| // PATH-LABEL: define signext i8 @_Z3g14 |
| // PATH: load i8, i8* %{{.*}}, align 1, !tbaa [[TAG_six_b:!.*]] |
| return a->b; |
| } |
| |
| // Types that differ only by name may alias. |
| typedef StructS StructS3; |
| uint32_t g15(StructS *S, StructS3 *S3, uint64_t count) { |
| // CHECK-LABEL: define i32 @_Z3g15 |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH-LABEL: define i32 @_Z3g15 |
| // PATH: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_S_f32]] |
| // PATH: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_S_f32]] |
| S->f32 = 1; |
| S3->f32 = 4; |
| return S->f32; |
| } |
| |
| // CHECK: [[TYPE_char:!.*]] = !{!"omnipotent char", [[TAG_cxx_tbaa:!.*]], |
| // CHECK: [[TAG_cxx_tbaa]] = !{!"Simple C++ TBAA"} |
| // CHECK: [[TAG_i32]] = !{[[TYPE_i32:!.*]], [[TYPE_i32]], i64 0} |
| // CHECK: [[TYPE_i32]] = !{!"int", [[TYPE_char]], |
| // CHECK: [[TAG_i16]] = !{[[TYPE_i16:!.*]], [[TYPE_i16]], i64 0} |
| // CHECK: [[TYPE_i16]] = !{!"short", [[TYPE_char]], |
| // CHECK: [[TAG_char]] = !{[[TYPE_char]], [[TYPE_char]], i64 0} |
| |
| // OLD-PATH: [[TYPE_CHAR:!.*]] = !{!"omnipotent char", ! |
| // OLD-PATH: [[TAG_i32]] = !{[[TYPE_INT:!.*]], [[TYPE_INT]], i64 0} |
| // OLD-PATH: [[TYPE_INT]] = !{!"int", [[TYPE_CHAR]] |
| // OLD-PATH: [[TAG_A_f32]] = !{[[TYPE_A:!.*]], [[TYPE_INT]], i64 4} |
| // OLD-PATH: [[TYPE_A]] = !{!"_ZTS7StructA", [[TYPE_SHORT:!.*]], i64 0, [[TYPE_INT]], i64 4, [[TYPE_SHORT]], i64 8, [[TYPE_INT]], i64 12} |
| // OLD-PATH: [[TYPE_SHORT:!.*]] = !{!"short", [[TYPE_CHAR]] |
| // OLD-PATH: [[TAG_A_f16]] = !{[[TYPE_A]], [[TYPE_SHORT]], i64 0} |
| // OLD-PATH: [[TAG_B_a_f32]] = !{[[TYPE_B:!.*]], [[TYPE_INT]], i64 8} |
| // OLD-PATH: [[TYPE_B]] = !{!"_ZTS7StructB", [[TYPE_SHORT]], i64 0, [[TYPE_A]], i64 4, [[TYPE_INT]], i64 20} |
| // OLD-PATH: [[TAG_B_a_f16]] = !{[[TYPE_B]], [[TYPE_SHORT]], i64 4} |
| // OLD-PATH: [[TAG_B_f32]] = !{[[TYPE_B]], [[TYPE_INT]], i64 20} |
| // OLD-PATH: [[TAG_B_a_f32_2]] = !{[[TYPE_B]], [[TYPE_INT]], i64 16} |
| // OLD-PATH: [[TAG_S_f32]] = !{[[TYPE_S:!.*]], [[TYPE_INT]], i64 4} |
| // OLD-PATH: [[TYPE_S]] = !{!"_ZTS7StructS", [[TYPE_SHORT]], i64 0, [[TYPE_INT]], i64 4} |
| // OLD-PATH: [[TAG_S_f16]] = !{[[TYPE_S]], [[TYPE_SHORT]], i64 0} |
| // OLD-PATH: [[TAG_S2_f32]] = !{[[TYPE_S2:!.*]], [[TYPE_INT]], i64 4} |
| // OLD-PATH: [[TYPE_S2]] = !{!"_ZTS8StructS2", [[TYPE_SHORT]], i64 0, [[TYPE_INT]], i64 4} |
| // OLD-PATH: [[TAG_S2_f16]] = !{[[TYPE_S2]], [[TYPE_SHORT]], i64 0} |
| // OLD-PATH: [[TAG_C_b_a_f32]] = !{[[TYPE_C:!.*]], [[TYPE_INT]], i64 12} |
| // OLD-PATH: [[TYPE_C]] = !{!"_ZTS7StructC", [[TYPE_SHORT]], i64 0, [[TYPE_B]], i64 4, [[TYPE_INT]], i64 28} |
| // OLD-PATH: [[TAG_D_b_a_f32]] = !{[[TYPE_D:!.*]], [[TYPE_INT]], i64 12} |
| // OLD-PATH: [[TYPE_D]] = !{!"_ZTS7StructD", [[TYPE_SHORT]], i64 0, [[TYPE_B]], i64 4, [[TYPE_INT]], i64 28, [[TYPE_CHAR]], i64 32} |
| // OLD-PATH: [[TAG_five_b]] = !{[[TYPE_five:!.*]], [[TYPE_CHAR]], i64 1} |
| // OLD-PATH: [[TYPE_five]] = !{!"_ZTS4five", [[TYPE_CHAR]], i64 0, [[TYPE_INT]], i64 1, [[TYPE_CHAR]], i64 1, [[TYPE_CHAR]], i64 2} |
| // OLD-PATH: [[TAG_six_b]] = !{[[TYPE_six:!.*]], [[TYPE_CHAR]], i64 4} |
| // OLD-PATH: [[TYPE_six]] = !{!"_ZTS3six", [[TYPE_CHAR]], i64 0, [[TYPE_INT]], i64 4, [[TYPE_CHAR]], i64 4, [[TYPE_CHAR]], i64 5} |
| |
| // NEW-PATH-DAG: [[ROOT:!.*]] = !{!"Simple C++ TBAA"} |
| // NEW-PATH-DAG: [[TYPE_char:!.*]] = !{[[ROOT]], i64 1, !"omnipotent char"} |
| // NEW-PATH-DAG: [[TYPE_short:!.*]] = !{[[TYPE_char]], i64 2, !"short"} |
| // NEW-PATH-DAG: [[TYPE_int:!.*]] = !{[[TYPE_char]], i64 4, !"int"} |
| // NEW-PATH-DAG: [[TAG_i32:!.*]] = !{[[TYPE_int]], [[TYPE_int]], i64 0, i64 4} |
| // NEW-PATH-DAG: [[TYPE_A:!.*]] = !{[[TYPE_char]], i64 16, !"_ZTS7StructA", [[TYPE_short]], i64 0, i64 2, [[TYPE_int]], i64 4, i64 4, !12, i64 8, i64 2, [[TYPE_int]], i64 12, i64 4} |
| // NEW-PATH-DAG: [[TAG_A_f16]] = !{[[TYPE_A]], [[TYPE_short]], i64 0, i64 2} |
| // NEW-PATH-DAG: [[TAG_A_f32]] = !{[[TYPE_A]], [[TYPE_int]], i64 4, i64 4} |
| // NEW-PATH-DAG: [[TYPE_B:!.*]] = !{[[TYPE_char]], i64 24, !"_ZTS7StructB", [[TYPE_short]], i64 0, i64 2, [[TYPE_A]], i64 4, i64 16, [[TYPE_int]], i64 20, i64 4} |
| // NEW-PATH-DAG: [[TAG_B_a_f16]] = !{[[TYPE_B]], [[TYPE_short]], i64 4, i64 2} |
| // NEW-PATH-DAG: [[TAG_B_a_f32]] = !{[[TYPE_B]], [[TYPE_int]], i64 8, i64 4} |
| // NEW-PATH-DAG: [[TAG_B_f32]] = !{[[TYPE_B]], [[TYPE_int]], i64 20, i64 4} |
| // NEW-PATH-DAG: [[TAG_B_a_f32_2]] = !{[[TYPE_B]], [[TYPE_int]], i64 16, i64 4} |
| // NEW-PATH-DAG: [[TYPE_S:!.*]] = !{[[TYPE_char]], i64 8, !"_ZTS7StructS", [[TYPE_short]], i64 0, i64 2, [[TYPE_int]], i64 4, i64 4} |
| // NEW-PATH-DAG: [[TAG_S_f16]] = !{[[TYPE_S]], [[TYPE_short]], i64 0, i64 2} |
| // NEW-PATH-DAG: [[TAG_S_f32]] = !{[[TYPE_S]], [[TYPE_int]], i64 4, i64 4} |
| // NEW-PATH-DAG: [[TYPE_S2:!.*]] = !{[[TYPE_char]], i64 8, !"_ZTS8StructS2", [[TYPE_short]], i64 0, i64 2, [[TYPE_int]], i64 4, i64 4} |
| // NEW-PATH-DAG: [[TAG_S2_f16]] = !{[[TYPE_S2]], [[TYPE_short]], i64 0, i64 2} |
| // NEW-PATH-DAG: [[TAG_S2_f32]] = !{[[TYPE_S2]], [[TYPE_int]], i64 4, i64 4} |
| // NEW-PATH-DAG: [[TYPE_C:!.*]] = !{[[TYPE_char]], i64 32, !"_ZTS7StructC", [[TYPE_short]], i64 0, i64 2, [[TYPE_B]], i64 4, i64 24, [[TYPE_int]], i64 28, i64 4} |
| // NEW-PATH-DAG: [[TAG_C_b_a_f32]] = !{[[TYPE_C]], [[TYPE_int]], i64 12, i64 4} |
| // NEW-PATH-DAG: [[TYPE_D:!.*]] = !{[[TYPE_char]], i64 36, !"_ZTS7StructD", [[TYPE_short]], i64 0, i64 2, [[TYPE_B]], i64 4, i64 24, [[TYPE_int]], i64 28, i64 4, [[TYPE_char]], i64 32, i64 1} |
| // NEW-PATH-DAG: [[TAG_D_b_a_f32]] = !{[[TYPE_D]], [[TYPE_int]], i64 12, i64 4} |
| // NEW-PATH-DAG: [[TYPE_five:!.*]] = !{[[TYPE_char]], i64 3, !"_ZTS4five", [[TYPE_char]], i64 0, i64 1, [[TYPE_int]], i64 1, i64 4, [[TYPE_char]], i64 1, i64 1, [[TYPE_char]], i64 2, i64 1} |
| // NEW-PATH-DAG: [[TAG_five_b]] = !{[[TYPE_five]], [[TYPE_char]], i64 1, i64 1} |
| // NEW-PATH-DAG: [[TYPE_six:!.*]] = !{[[TYPE_char]], i64 6, !"_ZTS3six", [[TYPE_char]], i64 0, i64 1, [[TYPE_int]], i64 4, i64 4, [[TYPE_char]], i64 4, i64 1, [[TYPE_char]], i64 5, i64 1} |
| // NEW-PATH-DAG: [[TAG_six_b]] = !{[[TYPE_six]], [[TYPE_char]], i64 4, i64 1} |
