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| // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsanitize=unsigned-integer-overflow %s -emit-llvm -o - | FileCheck %s
// Verify checked operations are emitted for integers and longs.
// unsigned short/char's tested in unsigned-promotion.c
unsigned long li, lj, lk;
unsigned int ii, ij, ik;
extern void opaquelong(unsigned long);
extern void opaqueint(unsigned int);
// CHECK-LABEL: define void @testlongadd()
void testlongadd() {
// CHECK: [[T1:%.*]] = load i64, i64* @lj
// CHECK-NEXT: [[T2:%.*]] = load i64, i64* @lk
// CHECK-NEXT: [[T3:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[T1]], i64 [[T2]])
// CHECK-NEXT: [[T4:%.*]] = extractvalue { i64, i1 } [[T3]], 0
// CHECK-NEXT: [[T5:%.*]] = extractvalue { i64, i1 } [[T3]], 1
// CHECK: call void @__ubsan_handle_add_overflow
li = lj + lk;
}
// CHECK-LABEL: define void @testlongsub()
void testlongsub() {
// CHECK: [[T1:%.*]] = load i64, i64* @lj
// CHECK-NEXT: [[T2:%.*]] = load i64, i64* @lk
// CHECK-NEXT: [[T3:%.*]] = call { i64, i1 } @llvm.usub.with.overflow.i64(i64 [[T1]], i64 [[T2]])
// CHECK-NEXT: [[T4:%.*]] = extractvalue { i64, i1 } [[T3]], 0
// CHECK-NEXT: [[T5:%.*]] = extractvalue { i64, i1 } [[T3]], 1
// CHECK: call void @__ubsan_handle_sub_overflow
li = lj - lk;
}
// CHECK-LABEL: define void @testlongmul()
void testlongmul() {
// CHECK: [[T1:%.*]] = load i64, i64* @lj
// CHECK-NEXT: [[T2:%.*]] = load i64, i64* @lk
// CHECK-NEXT: [[T3:%.*]] = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 [[T1]], i64 [[T2]])
// CHECK-NEXT: [[T4:%.*]] = extractvalue { i64, i1 } [[T3]], 0
// CHECK-NEXT: [[T5:%.*]] = extractvalue { i64, i1 } [[T3]], 1
// CHECK: call void @__ubsan_handle_mul_overflow
li = lj * lk;
}
// CHECK-LABEL: define void @testlongpostinc()
void testlongpostinc() {
opaquelong(li++);
// CHECK: [[T1:%.*]] = load i64, i64* @li
// CHECK-NEXT: [[T2:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[T1]], i64 1)
// CHECK-NEXT: [[T3:%.*]] = extractvalue { i64, i1 } [[T2]], 0
// CHECK-NEXT: [[T4:%.*]] = extractvalue { i64, i1 } [[T2]], 1
// CHECK: call void @__ubsan_handle_add_overflow
}
// CHECK-LABEL: define void @testlongpreinc()
void testlongpreinc() {
opaquelong(++li);
// CHECK: [[T1:%.*]] = load i64, i64* @li
// CHECK-NEXT: [[T2:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[T1]], i64 1)
// CHECK-NEXT: [[T3:%.*]] = extractvalue { i64, i1 } [[T2]], 0
// CHECK-NEXT: [[T4:%.*]] = extractvalue { i64, i1 } [[T2]], 1
// CHECK: call void @__ubsan_handle_add_overflow
}
// CHECK-LABEL: define void @testintadd()
void testintadd() {
// CHECK: [[T1:%.*]] = load i32, i32* @ij
// CHECK-NEXT: [[T2:%.*]] = load i32, i32* @ik
// CHECK-NEXT: [[T3:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[T1]], i32 [[T2]])
// CHECK-NEXT: [[T4:%.*]] = extractvalue { i32, i1 } [[T3]], 0
// CHECK-NEXT: [[T5:%.*]] = extractvalue { i32, i1 } [[T3]], 1
// CHECK: call void @__ubsan_handle_add_overflow
ii = ij + ik;
}
// CHECK-LABEL: define void @testintsub()
void testintsub() {
// CHECK: [[T1:%.*]] = load i32, i32* @ij
// CHECK-NEXT: [[T2:%.*]] = load i32, i32* @ik
// CHECK-NEXT: [[T3:%.*]] = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 [[T1]], i32 [[T2]])
// CHECK-NEXT: [[T4:%.*]] = extractvalue { i32, i1 } [[T3]], 0
// CHECK-NEXT: [[T5:%.*]] = extractvalue { i32, i1 } [[T3]], 1
// CHECK: call void @__ubsan_handle_sub_overflow
ii = ij - ik;
}
// CHECK-LABEL: define void @testintmul()
void testintmul() {
// CHECK: [[T1:%.*]] = load i32, i32* @ij
// CHECK-NEXT: [[T2:%.*]] = load i32, i32* @ik
// CHECK-NEXT: [[T3:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[T1]], i32 [[T2]])
// CHECK-NEXT: [[T4:%.*]] = extractvalue { i32, i1 } [[T3]], 0
// CHECK-NEXT: [[T5:%.*]] = extractvalue { i32, i1 } [[T3]], 1
// CHECK: call void @__ubsan_handle_mul_overflow
ii = ij * ik;
}
// CHECK-LABEL: define void @testintpostinc()
void testintpostinc() {
opaqueint(ii++);
// CHECK: [[T1:%.*]] = load i32, i32* @ii
// CHECK-NEXT: [[T2:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[T1]], i32 1)
// CHECK-NEXT: [[T3:%.*]] = extractvalue { i32, i1 } [[T2]], 0
// CHECK-NEXT: [[T4:%.*]] = extractvalue { i32, i1 } [[T2]], 1
// CHECK: call void @__ubsan_handle_add_overflow
}
// CHECK-LABEL: define void @testintpreinc()
void testintpreinc() {
opaqueint(++ii);
// CHECK: [[T1:%.*]] = load i32, i32* @ii
// CHECK-NEXT: [[T2:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[T1]], i32 1)
// CHECK-NEXT: [[T3:%.*]] = extractvalue { i32, i1 } [[T2]], 0
// CHECK-NEXT: [[T4:%.*]] = extractvalue { i32, i1 } [[T2]], 1
// CHECK: call void @__ubsan_handle_add_overflow
}
|