| // RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 -disable-llvm-optzns %s -emit-llvm -o - | FileCheck %s |
| // RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 -struct-path-tbaa -disable-llvm-optzns %s -emit-llvm -o - | FileCheck %s -check-prefix=PATH |
| // Test TBAA metadata generated by front-end. |
| |
| typedef unsigned char uint8_t; |
| typedef unsigned short uint16_t; |
| typedef unsigned int uint32_t; |
| typedef unsigned long long uint64_t; |
| class StructA |
| { |
| public: |
| uint16_t f16; |
| uint32_t f32; |
| uint16_t f16_2; |
| uint32_t f32_2; |
| }; |
| class StructB |
| { |
| public: |
| uint16_t f16; |
| StructA a; |
| uint32_t f32; |
| }; |
| class StructC |
| { |
| public: |
| uint16_t f16; |
| StructB b; |
| uint32_t f32; |
| }; |
| class StructD |
| { |
| public: |
| uint16_t f16; |
| StructB b; |
| uint32_t f32; |
| uint8_t f8; |
| }; |
| |
| class StructS |
| { |
| public: |
| uint16_t f16; |
| uint32_t f32; |
| }; |
| class StructS2 : public StructS |
| { |
| public: |
| uint16_t f16_2; |
| uint32_t f32_2; |
| }; |
| |
| uint32_t g(uint32_t *s, StructA *A, uint64_t count) { |
| // CHECK: define i32 @{{.*}}( |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32:!.*]] |
| // CHECK: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH: define i32 @{{.*}}( |
| // 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: define i32 @{{.*}}( |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i16 4, i16* %{{.*}}, align 2, !tbaa [[TAG_i16:!.*]] |
| // PATH: define i32 @{{.*}}( |
| // PATH: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH: store i16 4, i16* %{{.*}}, align 2, !tbaa [[TAG_A_f16:!.*]] |
| *s = 1; |
| A->f16 = 4; |
| return *s; |
| } |
| |
| uint32_t g3(StructA *A, StructB *B, uint64_t count) { |
| // CHECK: define i32 @{{.*}}( |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH: define i32 @{{.*}}( |
| // 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: define i32 @{{.*}}( |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i16 4, i16* %{{.*}}, align 2, !tbaa [[TAG_i16]] |
| // PATH: define i32 @{{.*}}( |
| // PATH: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_A_f32]] |
| // PATH: store i16 4, i16* %{{.*}}, align 2, !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: define i32 @{{.*}}( |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH: define i32 @{{.*}}( |
| // 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: define i32 @{{.*}}( |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH: define i32 @{{.*}}( |
| // 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: define i32 @{{.*}}( |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH: define i32 @{{.*}}( |
| // 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: define i32 @{{.*}}( |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i16 4, i16* %{{.*}}, align 2, !tbaa [[TAG_i16]] |
| // PATH: define i32 @{{.*}}( |
| // PATH: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_A_f32]] |
| // PATH: store i16 4, i16* %{{.*}}, align 2, !tbaa [[TAG_S_f16:!.*]] |
| A->f32 = 1; |
| S->f16 = 4; |
| return A->f32; |
| } |
| |
| uint32_t g9(StructS *S, StructS2 *S2, uint64_t count) { |
| // CHECK: define i32 @{{.*}}( |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH: define i32 @{{.*}}( |
| // 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; |
| S2->f32 = 4; |
| return S->f32; |
| } |
| |
| uint32_t g10(StructS *S, StructS2 *S2, uint64_t count) { |
| // CHECK: define i32 @{{.*}}( |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH: define i32 @{{.*}}( |
| // PATH: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_S_f32]] |
| // PATH: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_S2_f32_2:!.*]] |
| S->f32 = 1; |
| S2->f32_2 = 4; |
| return S->f32; |
| } |
| |
| uint32_t g11(StructC *C, StructD *D, uint64_t count) { |
| // CHECK: define i32 @{{.*}}( |
| // CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // CHECK: store i32 4, i32* %{{.*}}, align 4, !tbaa [[TAG_i32]] |
| // PATH: define i32 @{{.*}}( |
| // 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: define i32 @{{.*}}( |
| // 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: define i32 @{{.*}}( |
| // 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; |
| } |
| |
| // CHECK: [[TAG_char:!.*]] = metadata !{metadata !"omnipotent char", metadata [[TAG_cxx_tbaa:!.*]]} |
| // CHECK: [[TAG_cxx_tbaa]] = metadata !{metadata !"Simple C/C++ TBAA"} |
| // CHECK: [[TAG_i32]] = metadata !{metadata !"int", metadata [[TAG_char]]} |
| // CHECK: [[TAG_i16]] = metadata !{metadata !"short", metadata [[TAG_char]]} |
| |
| // PATH: [[TYPE_CHAR:!.*]] = metadata !{metadata !"omnipotent char", metadata |
| // PATH: [[TAG_i32]] = metadata !{metadata [[TYPE_INT:!.*]], metadata [[TYPE_INT]], i64 0} |
| // PATH: [[TYPE_INT]] = metadata !{metadata !"int", metadata [[TYPE_CHAR]] |
| // PATH: [[TAG_A_f32]] = metadata !{metadata [[TYPE_A:!.*]], metadata [[TYPE_INT]], i64 4} |
| // PATH: [[TYPE_A]] = metadata !{metadata !"_ZTS7StructA", metadata [[TYPE_SHORT:!.*]], i64 0, metadata [[TYPE_INT]], i64 4, metadata [[TYPE_SHORT]], i64 8, metadata [[TYPE_INT]], i64 12} |
| // PATH: [[TYPE_SHORT:!.*]] = metadata !{metadata !"short", metadata [[TYPE_CHAR]] |
| // PATH: [[TAG_A_f16]] = metadata !{metadata [[TYPE_A]], metadata [[TYPE_SHORT]], i64 0} |
| // PATH: [[TAG_B_a_f32]] = metadata !{metadata [[TYPE_B:!.*]], metadata [[TYPE_INT]], i64 8} |
| // PATH: [[TYPE_B]] = metadata !{metadata !"_ZTS7StructB", metadata [[TYPE_SHORT]], i64 0, metadata [[TYPE_A]], i64 4, metadata [[TYPE_INT]], i64 20} |
| // PATH: [[TAG_B_a_f16]] = metadata !{metadata [[TYPE_B]], metadata [[TYPE_SHORT]], i64 4} |
| // PATH: [[TAG_B_f32]] = metadata !{metadata [[TYPE_B]], metadata [[TYPE_INT]], i64 20} |
| // PATH: [[TAG_B_a_f32_2]] = metadata !{metadata [[TYPE_B]], metadata [[TYPE_INT]], i64 16} |
| // PATH: [[TAG_S_f32]] = metadata !{metadata [[TYPE_S:!.*]], metadata [[TYPE_INT]], i64 4} |
| // PATH: [[TYPE_S]] = metadata !{metadata !"_ZTS7StructS", metadata [[TYPE_SHORT]], i64 0, metadata [[TYPE_INT]], i64 4} |
| // PATH: [[TAG_S_f16]] = metadata !{metadata [[TYPE_S]], metadata [[TYPE_SHORT]], i64 0} |
| // PATH: [[TAG_S2_f32_2]] = metadata !{metadata [[TYPE_S2:!.*]], metadata [[TYPE_INT]], i64 12} |
| // PATH: [[TYPE_S2]] = metadata !{metadata !"_ZTS8StructS2", metadata [[TYPE_SHORT]], i64 8, metadata [[TYPE_INT]], i64 12} |
| // PATH: [[TAG_C_b_a_f32]] = metadata !{metadata [[TYPE_C:!.*]], metadata [[TYPE_INT]], i64 12} |
| // PATH: [[TYPE_C]] = metadata !{metadata !"_ZTS7StructC", metadata [[TYPE_SHORT]], i64 0, metadata [[TYPE_B]], i64 4, metadata [[TYPE_INT]], i64 28} |
| // PATH: [[TAG_D_b_a_f32]] = metadata !{metadata [[TYPE_D:!.*]], metadata [[TYPE_INT]], i64 12} |
| // PATH: [[TYPE_D]] = metadata !{metadata !"_ZTS7StructD", metadata [[TYPE_SHORT]], i64 0, metadata [[TYPE_B]], i64 4, metadata [[TYPE_INT]], i64 28, metadata [[TYPE_CHAR]], i64 32} |