forked from OSchip/llvm-project
77 lines
2.9 KiB
C++
77 lines
2.9 KiB
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - -O1 %s | FileCheck %s
|
|
//
|
|
// Check that we generate !tbaa.struct metadata for struct copies.
|
|
struct A {
|
|
short s;
|
|
int i;
|
|
char c;
|
|
int j;
|
|
};
|
|
|
|
void copy(struct A *a, struct A *b) {
|
|
*a = *b;
|
|
}
|
|
|
|
// CHECK: target datalayout = "{{.*}}p:[[P:64|32]]
|
|
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i[[P]](i8* %{{.*}}, i8* %{{.*}}, i[[P]] 16, i32 4, i1 false), !tbaa.struct [[TS:!.*]]
|
|
|
|
struct B {
|
|
char c1;
|
|
struct A a;
|
|
int ii;
|
|
};
|
|
|
|
void copy2(struct B *a, struct B *b) {
|
|
*a = *b;
|
|
}
|
|
|
|
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i[[P]](i8* %{{.*}}, i8* %{{.*}}, i[[P]] 24, i32 4, i1 false), !tbaa.struct [[TS2:!.*]]
|
|
|
|
typedef _Complex int T2;
|
|
typedef _Complex char T5;
|
|
typedef _Complex int T7;
|
|
typedef struct T4 { T5 field0; T7 field1; } T4;
|
|
typedef union T1 { T2 field0; T4 field1; } T1;
|
|
|
|
void copy3 (T1 *a, T1 *b) {
|
|
*a = *b;
|
|
}
|
|
|
|
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i[[P]](i8* %{{.*}}, i8* %{{.*}}, i[[P]] 12, i32 4, i1 false), !tbaa.struct [[TS3:!.*]]
|
|
|
|
// 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;
|
|
void copy4(struct five *a, struct five *b) {
|
|
*a = *b;
|
|
}
|
|
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i[[P]](i8* %{{.*}}, i8* %{{.*}}, i[[P]] 3, i32 1, i1 false), !tbaa.struct [[TS4:!.*]]
|
|
|
|
struct six {
|
|
char a;
|
|
int :0;
|
|
char b;
|
|
char c;
|
|
};
|
|
void copy5(struct six *a, struct six *b) {
|
|
*a = *b;
|
|
}
|
|
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i[[P]](i8* %{{.*}}, i8* %{{.*}}, i[[P]] 6, i32 1, i1 false), !tbaa.struct [[TS5:!.*]]
|
|
|
|
// CHECK: [[TS]] = metadata !{i64 0, i64 2, metadata !{{.*}}, i64 4, i64 4, metadata !{{.*}}, i64 8, i64 1, metadata !{{.*}}, i64 12, i64 4, metadata !{{.*}}}
|
|
// CHECK: [[CHAR:!.*]] = metadata !{metadata !"omnipotent char", metadata !{{.*}}}
|
|
// CHECK: [[TAG_INT:!.*]] = metadata !{metadata [[INT:!.*]], metadata [[INT]], i64 0}
|
|
// CHECK: [[INT]] = metadata !{metadata !"int", metadata [[CHAR]]
|
|
// CHECK: [[TAG_CHAR:!.*]] = metadata !{metadata [[CHAR]], metadata [[CHAR]], i64 0}
|
|
// (offset, size) = (0,1) char; (4,2) short; (8,4) int; (12,1) char; (16,4) int; (20,4) int
|
|
// CHECK: [[TS2]] = metadata !{i64 0, i64 1, metadata !{{.*}}, i64 4, i64 2, metadata !{{.*}}, i64 8, i64 4, metadata !{{.*}}, i64 12, i64 1, metadata !{{.*}}, i64 16, i64 4, metadata {{.*}}, i64 20, i64 4, metadata {{.*}}}
|
|
// (offset, size) = (0,8) char; (0,2) char; (4,8) char
|
|
// CHECK: [[TS3]] = metadata !{i64 0, i64 8, metadata !{{.*}}, i64 0, i64 2, metadata !{{.*}}, i64 4, i64 8, metadata !{{.*}}}
|
|
// CHECK: [[TS4]] = metadata !{i64 0, i64 1, metadata [[TAG_CHAR]], i64 1, i64 4, metadata [[TAG_INT]], i64 1, i64 1, metadata [[TAG_CHAR]], i64 2, i64 1, metadata [[TAG_CHAR]]}
|
|
// CHECK: [[TS5]] = metadata !{i64 0, i64 1, metadata [[TAG_CHAR]], i64 4, i64 4, metadata [[TAG_INT]], i64 4, i64 1, metadata [[TAG_CHAR]], i64 5, i64 1, metadata [[TAG_CHAR]]}
|