forked from OSchip/llvm-project
179 lines
7.6 KiB
C
179 lines
7.6 KiB
C
// RUN: %clang -target x86_64 -emit-llvm -S -g %s -o - | FileCheck %s
|
|
|
|
#define _(x) (__builtin_preserve_access_index(x))
|
|
|
|
const void *unit1(const void *arg) {
|
|
return _(arg);
|
|
}
|
|
// CHECK: define dso_local i8* @unit1
|
|
// CHECK-NOT: llvm.preserve.array.access.index
|
|
// CHECK-NOT: llvm.preserve.struct.access.index
|
|
// CHECK-NOT: llvm.preserve.union.access.index
|
|
|
|
const void *unit2(void) {
|
|
return _((const void *)0xffffffffFFFF0000ULL);
|
|
}
|
|
// CHECK: define dso_local i8* @unit2
|
|
// CHECK-NOT: llvm.preserve.array.access.index
|
|
// CHECK-NOT: llvm.preserve.struct.access.index
|
|
// CHECK-NOT: llvm.preserve.union.access.index
|
|
|
|
const void *unit3(const int *arg) {
|
|
return _(arg + 1);
|
|
}
|
|
// CHECK: define dso_local i8* @unit3
|
|
// CHECK-NOT: llvm.preserve.array.access.index
|
|
// CHECK-NOT: llvm.preserve.struct.access.index
|
|
// CHECK-NOT: llvm.preserve.union.access.index
|
|
|
|
const void *unit4(const int *arg) {
|
|
return _(&arg[1]);
|
|
}
|
|
// CHECK: define dso_local i8* @unit4
|
|
// CHECK-NOT: getelementptr
|
|
// CHECK: call i32* @llvm.preserve.array.access.index.p0i32.p0i32(i32* elementtype(i32) %{{[0-9a-z]+}}, i32 0, i32 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[POINTER:[0-9]+]]
|
|
|
|
const void *unit5(const int *arg[5]) {
|
|
return _(&arg[1][2]);
|
|
}
|
|
// CHECK: define dso_local i8* @unit5
|
|
// CHECK-NOT: getelementptr
|
|
// CHECK: call i32** @llvm.preserve.array.access.index.p0p0i32.p0p0i32(i32** elementtype(i32*) %{{[0-9a-z]+}}, i32 0, i32 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index !{{[0-9]+}}
|
|
// CHECK-NOT: getelementptr
|
|
// CHECK: call i32* @llvm.preserve.array.access.index.p0i32.p0i32(i32* elementtype(i32) %{{[0-9a-z]+}}, i32 0, i32 2), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[POINTER:[0-9]+]]
|
|
|
|
struct s1 {
|
|
char a;
|
|
int b;
|
|
};
|
|
|
|
struct s2 {
|
|
char a1:1;
|
|
char a2:1;
|
|
int b;
|
|
};
|
|
|
|
struct s3 {
|
|
char a1:1;
|
|
char a2:1;
|
|
char :6;
|
|
int b;
|
|
};
|
|
|
|
const void *unit6(struct s1 *arg) {
|
|
return _(&arg->a);
|
|
}
|
|
// CHECK: define dso_local i8* @unit6
|
|
// CHECK-NOT: getelementptr
|
|
// CHECK: call i8* @llvm.preserve.struct.access.index.p0i8.p0s_struct.s1s(%struct.s1* elementtype(%struct.s1) %{{[0-9a-z]+}}, i32 0, i32 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[STRUCT_S1:[0-9]+]]
|
|
|
|
const void *unit7(struct s1 *arg) {
|
|
return _(&arg->b);
|
|
}
|
|
// CHECK: define dso_local i8* @unit7
|
|
// CHECK-NOT: getelementptr
|
|
// CHECK: call i32* @llvm.preserve.struct.access.index.p0i32.p0s_struct.s1s(%struct.s1* elementtype(%struct.s1) %{{[0-9a-z]+}}, i32 1, i32 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[STRUCT_S1]]
|
|
|
|
const void *unit8(struct s2 *arg) {
|
|
return _(&arg->b);
|
|
}
|
|
// CHECK: define dso_local i8* @unit8
|
|
// CHECK-NOT: getelementptr
|
|
// CHECK: call i32* @llvm.preserve.struct.access.index.p0i32.p0s_struct.s2s(%struct.s2* elementtype(%struct.s2) %{{[0-9a-z]+}}, i32 1, i32 2), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[STRUCT_S2:[0-9]+]]
|
|
|
|
const void *unit9(struct s3 *arg) {
|
|
return _(&arg->b);
|
|
}
|
|
// CHECK: define dso_local i8* @unit9
|
|
// CHECK-NOT: getelementptr
|
|
// CHECK: call i32* @llvm.preserve.struct.access.index.p0i32.p0s_struct.s3s(%struct.s3* elementtype(%struct.s3) %{{[0-9a-z]+}}, i32 1, i32 2), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[STRUCT_S3:[0-9]+]]
|
|
|
|
union u1 {
|
|
char a;
|
|
int b;
|
|
};
|
|
|
|
union u2 {
|
|
char a;
|
|
int :32;
|
|
int b;
|
|
};
|
|
|
|
const void *unit10(union u1 *arg) {
|
|
return _(&arg->a);
|
|
}
|
|
// CHECK: define dso_local i8* @unit10
|
|
// CHECK-NOT: getelementptr
|
|
// CHECK: call %union.u1* @llvm.preserve.union.access.index.p0s_union.u1s.p0s_union.u1s(%union.u1* %{{[0-9a-z]+}}, i32 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[UNION_U1:[0-9]+]]
|
|
|
|
const void *unit11(union u1 *arg) {
|
|
return _(&arg->b);
|
|
}
|
|
// CHECK: define dso_local i8* @unit11
|
|
// CHECK-NOT: getelementptr
|
|
// CHECK: call %union.u1* @llvm.preserve.union.access.index.p0s_union.u1s.p0s_union.u1s(%union.u1* %{{[0-9a-z]+}}, i32 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[UNION_U1]]
|
|
|
|
const void *unit12(union u2 *arg) {
|
|
return _(&arg->b);
|
|
}
|
|
// CHECK: define dso_local i8* @unit12
|
|
// CHECK-NOT: getelementptr
|
|
// CHECK: call %union.u2* @llvm.preserve.union.access.index.p0s_union.u2s.p0s_union.u2s(%union.u2* %{{[0-9a-z]+}}, i32 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[UNION_U2:[0-9]+]]
|
|
|
|
struct s4 {
|
|
char d;
|
|
union u {
|
|
int b[4];
|
|
char a;
|
|
} c;
|
|
};
|
|
|
|
union u3 {
|
|
struct s {
|
|
int b[4];
|
|
} c;
|
|
char a;
|
|
};
|
|
|
|
const void *unit13(struct s4 *arg) {
|
|
return _(&arg->c.b[2]);
|
|
}
|
|
// CHECK: define dso_local i8* @unit13
|
|
// CHECK: call %union.u* @llvm.preserve.struct.access.index.p0s_union.us.p0s_struct.s4s(%struct.s4* elementtype(%struct.s4) %{{[0-9a-z]+}}, i32 1, i32 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[STRUCT_S4:[0-9]+]]
|
|
// CHECK: call %union.u* @llvm.preserve.union.access.index.p0s_union.us.p0s_union.us(%union.u* %{{[0-9a-z]+}}, i32 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[UNION_I_U:[0-9]+]]
|
|
// CHECK: call i32* @llvm.preserve.array.access.index.p0i32.p0a4i32([4 x i32]* elementtype([4 x i32]) %{{[0-9a-z]+}}, i32 1, i32 2), !dbg !{{[0-9]+}}, !llvm.preserve.access.index !{{[0-9]+}}
|
|
|
|
const void *unit14(union u3 *arg) {
|
|
return _(&arg->c.b[2]);
|
|
}
|
|
// CHECK: define dso_local i8* @unit14
|
|
// CHECK: call %union.u3* @llvm.preserve.union.access.index.p0s_union.u3s.p0s_union.u3s(%union.u3* %{{[0-9a-z]+}}, i32 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[UNION_U3:[0-9]+]]
|
|
// CHECK: call [4 x i32]* @llvm.preserve.struct.access.index.p0a4i32.p0s_struct.ss(%struct.s* elementtype(%struct.s) %{{[0-9a-z]+}}, i32 0, i32 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[STRUCT_I_S:[0-9]+]]
|
|
// CHECK: call i32* @llvm.preserve.array.access.index.p0i32.p0a4i32([4 x i32]* elementtype([4 x i32]) %{{[0-9a-z]+}}, i32 1, i32 2), !dbg !{{[0-9]+}}, !llvm.preserve.access.index !{{[0-9]+}}
|
|
|
|
const void *unit15(struct s4 *arg) {
|
|
return _(&arg[2].c.a);
|
|
}
|
|
// CHECK: define dso_local i8* @unit15
|
|
// CHECK: call %struct.s4* @llvm.preserve.array.access.index.p0s_struct.s4s.p0s_struct.s4s(%struct.s4* elementtype(%struct.s4) %{{[0-9a-z]+}}, i32 0, i32 2), !dbg !{{[0-9]+}}, !llvm.preserve.access.index !{{[0-9]+}}
|
|
// CHECK: call %union.u* @llvm.preserve.struct.access.index.p0s_union.us.p0s_struct.s4s(%struct.s4* elementtype(%struct.s4) %{{[0-9a-z]+}}, i32 1, i32 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[STRUCT_S4]]
|
|
// CHECK: call %union.u* @llvm.preserve.union.access.index.p0s_union.us.p0s_union.us(%union.u* %{{[0-9a-z]+}}, i32 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[UNION_I_U]]
|
|
|
|
const void *unit16(union u3 *arg) {
|
|
return _(&arg[2].a);
|
|
}
|
|
// CHECK: define dso_local i8* @unit16
|
|
// CHECK: call %union.u3* @llvm.preserve.array.access.index.p0s_union.u3s.p0s_union.u3s(%union.u3* elementtype(%union.u3) %{{[0-9a-z]+}}, i32 0, i32 2), !dbg !{{[0-9]+}}, !llvm.preserve.access.index !{{[0-9]+}}
|
|
// CHECK: call %union.u3* @llvm.preserve.union.access.index.p0s_union.u3s.p0s_union.u3s(%union.u3* %{{[0-9a-z]+}}, i32 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[UNION_U3]]
|
|
|
|
// CHECK: ![[POINTER]] = !DIDerivedType(tag: DW_TAG_pointer_type
|
|
// CHECK: ![[STRUCT_S4]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s4"
|
|
// CHECK: ![[UNION_I_U]] = distinct !DICompositeType(tag: DW_TAG_union_type, name: "u"
|
|
// CHECK: ![[UNION_U3]] = distinct !DICompositeType(tag: DW_TAG_union_type, name: "u3"
|
|
// CHECK: ![[STRUCT_I_S]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s"
|
|
// CHECK: ![[STRUCT_S1]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s1"
|
|
// CHECK: ![[STRUCT_S2]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s2"
|
|
// CHECK: ![[STRUCT_S3]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s3"
|
|
// CHECK: ![[UNION_U1]] = distinct !DICompositeType(tag: DW_TAG_union_type, name: "u1"
|
|
// CHECK: ![[UNION_U2]] = distinct !DICompositeType(tag: DW_TAG_union_type, name: "u2"
|