diff options
Diffstat (limited to 'clang/test/CodeGen/builtin-preserve-access-index.c')
| -rw-r--r-- | clang/test/CodeGen/builtin-preserve-access-index.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/clang/test/CodeGen/builtin-preserve-access-index.c b/clang/test/CodeGen/builtin-preserve-access-index.c new file mode 100644 index 00000000000..954a3b827d2 --- /dev/null +++ b/clang/test/CodeGen/builtin-preserve-access-index.c @@ -0,0 +1,177 @@ +// 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* %{{[0-9a-z]+}}, i32 0, i32 1) + +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** %{{[0-9a-z]+}}, i32 0, i32 1) +// CHECK-NOT: getelementptr +// CHECK: call i32* @llvm.preserve.array.access.index.p0i32.p0i32(i32* %{{[0-9a-z]+}}, i32 0, i32 2) + +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* %{{[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* %{{[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* %{{[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* %{{[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* %{{[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]* %{{[0-9a-z]+}}, i32 1, i32 2) + +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* %{{[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]* %{{[0-9a-z]+}}, i32 1, i32 2) + +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* %{{[0-9a-z]+}}, i32 0, i32 2) +// CHECK: call %union.u* @llvm.preserve.struct.access.index.p0s_union.us.p0s_struct.s4s(%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* %{{[0-9a-z]+}}, i32 0, i32 2) +// 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: ![[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" +// 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" |
