You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
277 lines
10 KiB
277 lines
10 KiB
// RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 -no-struct-path-tbaa -disable-llvm-optzns %s -emit-llvm -o - | FileCheck %s
|
|
// RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 -disable-llvm-optzns %s -emit-llvm -o - | FileCheck %s -check-prefix=PATH
|
|
// RUN: %clang_cc1 -triple x86_64-apple-darwin -O0 -disable-llvm-optzns %s -emit-llvm -o - | FileCheck %s -check-prefix=NO-TBAA
|
|
// RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 -relaxed-aliasing -disable-llvm-optzns %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}
|
|
|
|
// PATH: [[TYPE_CHAR:!.*]] = !{!"omnipotent char", !
|
|
// PATH: [[TAG_i32]] = !{[[TYPE_INT:!.*]], [[TYPE_INT]], i64 0}
|
|
// PATH: [[TYPE_INT]] = !{!"int", [[TYPE_CHAR]]
|
|
// PATH: [[TAG_A_f32]] = !{[[TYPE_A:!.*]], [[TYPE_INT]], i64 4}
|
|
// PATH: [[TYPE_A]] = !{!"_ZTS7StructA", [[TYPE_SHORT:!.*]], i64 0, [[TYPE_INT]], i64 4, [[TYPE_SHORT]], i64 8, [[TYPE_INT]], i64 12}
|
|
// PATH: [[TYPE_SHORT:!.*]] = !{!"short", [[TYPE_CHAR]]
|
|
// PATH: [[TAG_A_f16]] = !{[[TYPE_A]], [[TYPE_SHORT]], i64 0}
|
|
// PATH: [[TAG_B_a_f32]] = !{[[TYPE_B:!.*]], [[TYPE_INT]], i64 8}
|
|
// PATH: [[TYPE_B]] = !{!"_ZTS7StructB", [[TYPE_SHORT]], i64 0, [[TYPE_A]], i64 4, [[TYPE_INT]], i64 20}
|
|
// PATH: [[TAG_B_a_f16]] = !{[[TYPE_B]], [[TYPE_SHORT]], i64 4}
|
|
// PATH: [[TAG_B_f32]] = !{[[TYPE_B]], [[TYPE_INT]], i64 20}
|
|
// PATH: [[TAG_B_a_f32_2]] = !{[[TYPE_B]], [[TYPE_INT]], i64 16}
|
|
// PATH: [[TAG_S_f32]] = !{[[TYPE_S:!.*]], [[TYPE_INT]], i64 4}
|
|
// PATH: [[TYPE_S]] = !{!"_ZTS7StructS", [[TYPE_SHORT]], i64 0, [[TYPE_INT]], i64 4}
|
|
// PATH: [[TAG_S_f16]] = !{[[TYPE_S]], [[TYPE_SHORT]], i64 0}
|
|
// PATH: [[TAG_S2_f32]] = !{[[TYPE_S2:!.*]], [[TYPE_INT]], i64 4}
|
|
// PATH: [[TYPE_S2]] = !{!"_ZTS8StructS2", [[TYPE_SHORT]], i64 0, [[TYPE_INT]], i64 4}
|
|
// PATH: [[TAG_S2_f16]] = !{[[TYPE_S2]], [[TYPE_SHORT]], i64 0}
|
|
// PATH: [[TAG_C_b_a_f32]] = !{[[TYPE_C:!.*]], [[TYPE_INT]], i64 12}
|
|
// PATH: [[TYPE_C]] = !{!"_ZTS7StructC", [[TYPE_SHORT]], i64 0, [[TYPE_B]], i64 4, [[TYPE_INT]], i64 28}
|
|
// PATH: [[TAG_D_b_a_f32]] = !{[[TYPE_D:!.*]], [[TYPE_INT]], i64 12}
|
|
// PATH: [[TYPE_D]] = !{!"_ZTS7StructD", [[TYPE_SHORT]], i64 0, [[TYPE_B]], i64 4, [[TYPE_INT]], i64 28, [[TYPE_CHAR]], i64 32}
|
|
// PATH: [[TAG_five_b]] = !{[[TYPE_five:!.*]], [[TYPE_CHAR]], i64 1}
|
|
// PATH: [[TYPE_five]] = !{!"_ZTS4five", [[TYPE_CHAR]], i64 0, [[TYPE_INT]], i64 1, [[TYPE_CHAR]], i64 1, [[TYPE_CHAR]], i64 2}
|
|
// PATH: [[TAG_six_b]] = !{[[TYPE_six:!.*]], [[TYPE_CHAR]], i64 4}
|
|
// PATH: [[TYPE_six]] = !{!"_ZTS3six", [[TYPE_CHAR]], i64 0, [[TYPE_INT]], i64 4, [[TYPE_CHAR]], i64 4, [[TYPE_CHAR]], i64 5}
|