ubsan-new-checks.cpp
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -std=c++11 -S -emit-llvm -fsanitize=alignment %s -o - | FileCheck %s
struct alignas(32) S1 {
int x;
S1();
};
struct alignas(32) S2 {
int x;
};
struct alignas(32) S3 {
int x;
S3(int *p = new int[4]);
};
struct S4 : public S3 {
S4() : S3() {}
};
typedef __attribute__((ext_vector_type(2), aligned(32))) float float32x2_t;
struct S5 {
float32x2_t x;
};
void *operator new (unsigned long, void *p) { return p; }
void *operator new[] (unsigned long, void *p) { return p; }
S1 *func_01() {
// CHECK-LABEL: define {{.*}} @_Z7func_01v
// CHECK: and i64 %{{.*}}, 31, !nosanitize
// CHECK: icmp eq i64 %{{.*}}, 0, !nosanitize
// CHECK: call void @_ZN2S1C1Ev(
// CHECK-NOT: and i64 %{{.*}}, 31
// CHECK: ret %struct.S1*
return new S1[20];
}
S2 *func_02() {
// CHECK-LABEL: define {{.*}} @_Z7func_02v
// CHECK: and i64 %{{.*}}, 31, !nosanitize
// CHECK: icmp eq i64 %{{.*}}, 0, !nosanitize
// CHECK: ret %struct.S2*
return new S2;
}
S2 *func_03() {
// CHECK-LABEL: define {{.*}} @_Z7func_03v
// CHECK: and i64 %{{.*}}, 31, !nosanitize
// CHECK: icmp eq i64 %{{.*}}, 0, !nosanitize
// CHECK-NOT: and i64 %{{.*}}, 31
// CHECK: ret %struct.S2*
return new S2[20];
}
float32x2_t *func_04() {
// CHECK-LABEL: define {{.*}} @_Z7func_04v
// CHECK: and i64 %{{.*}}, 31, !nosanitize
// CHECK: icmp eq i64 %{{.*}}, 0, !nosanitize
// CHECK: ret <2 x float>*
return new float32x2_t;
}
float32x2_t *func_05() {
// CHECK-LABEL: define {{.*}} @_Z7func_05v
// CHECK: and i64 %{{.*}}, 31, !nosanitize
// CHECK: icmp eq i64 %{{.*}}, 0, !nosanitize
// CHECK-NOT: and i64 %{{.*}}, 31
// CHECK: ret <2 x float>*
return new float32x2_t[20];
}
S3 *func_07() {
// CHECK-LABEL: define {{.*}} @_Z7func_07v
// CHECK: and i64 %{{.*}}, 31, !nosanitize
// CHECK: icmp eq i64 %{{.*}}, 0, !nosanitize
// CHECK: and i64 %{{.*}}, 3, !nosanitize
// CHECK: icmp eq i64 %{{.*}}, 0, !nosanitize
// CHECK: ret %struct.S3*
return new S3;
}
S3 *func_08() {
// CHECK-LABEL: define {{.*}} @_Z7func_08v
// CHECK: and i64 %{{.*}}, 31, !nosanitize
// CHECK: icmp eq i64 %{{.*}}, 0, !nosanitize
// CHECK: and i64 %{{.*}}, 3, !nosanitize
// CHECK: icmp eq i64 %{{.*}}, 0, !nosanitize
// CHECK: ret %struct.S3*
return new S3[10];
}
S2 *func_10(void *p) {
// CHECK-LABEL: define {{.*}} @_Z7func_10Pv
// CHECK: and i64 %{{.*}}, 31, !nosanitize
// CHECK: icmp eq i64 %{{.*}}, 0, !nosanitize
// CHECK: ret %struct.S2*
return new(p) S2;
}
S2 *func_11(void *p) {
// CHECK-LABEL: define {{.*}} @_Z7func_11Pv
// CHECK: and i64 %{{.*}}, 31, !nosanitize
// CHECK: icmp eq i64 %{{.*}}, 0, !nosanitize
// CHECK-NOT: and i64 %{{.*}}, 31, !nosanitize
// CHECK-NOT: icmp eq i64 %{{.*}}, 0, !nosanitize
// CHECK: ret %struct.S2*
return new(p) S2[10];
}
float32x2_t *func_12() {
// CHECK-LABEL: define {{.*}} @_Z7func_12v
// CHECK: and i64 %{{.*}}, 31, !nosanitize
// CHECK: icmp eq i64 %{{.*}}, 0, !nosanitize
// CHECK: ret <2 x float>*
return new float32x2_t;
}
float32x2_t *func_13() {
// CHECK-LABEL: define {{.*}} @_Z7func_13v
// CHECK: and i64 %{{.*}}, 31, !nosanitize
// CHECK: icmp eq i64 %{{.*}}, 0, !nosanitize
// CHECK-NOT: and i64 %{{.*}}, 31
// CHECK: ret <2 x float>*
return new float32x2_t[20];
}
S4 *func_14() {
// CHECK-LABEL: define {{.*}} @_Z7func_14v
// CHECK: and i64 %{{.*}}, 31, !nosanitize
// CHECK: icmp eq i64 %{{.*}}, 0, !nosanitize
// CHECK-NOT: and i64 %{{.*}}, 31
// CHECK: ret %struct.S4*
return new S4;
}
S5 *func_15(const S5 *ptr) {
// CHECK-LABEL: define {{.*}} @_Z7func_15PK2S5
// CHECK: and i64 %{{.*}}, 31, !nosanitize
// CHECK: icmp eq i64 %{{.*}}, 0, !nosanitize
// CHECK-NOT: and i64
// CHECK: ret %struct.S5*
return new S5(*ptr);
}