xref: /aosp_15_r20/external/clang/test/CodeGenCXX/operator-new.cpp (revision 67e74705e28f6214e480b399dd47ea732279e315) 
1*67e74705SXin Li // RUN: %clang_cc1 -triple i686-pc-linux-gnu -emit-llvm -o %t-1.ll %s
2*67e74705SXin Li // RUN: FileCheck -check-prefix SANE --input-file=%t-1.ll %s
3*67e74705SXin Li // RUN: %clang_cc1 -triple i686-pc-linux-gnu -emit-llvm -fno-assume-sane-operator-new -o %t-2.ll %s
4*67e74705SXin Li // RUN: FileCheck -check-prefix SANENOT --input-file=%t-2.ll %s
5*67e74705SXin Li 
6*67e74705SXin Li 
7*67e74705SXin Li class teste {
8*67e74705SXin Li   int A;
9*67e74705SXin Li public:
teste()10*67e74705SXin Li   teste() : A(2) {}
11*67e74705SXin Li };
12*67e74705SXin Li 
f1()13*67e74705SXin Li void f1() {
14*67e74705SXin Li   // SANE: declare noalias i8* @_Znwj(
15*67e74705SXin Li   // SANENOT: declare i8* @_Znwj(
16*67e74705SXin Li   new teste();
17*67e74705SXin Li }
18*67e74705SXin Li 
19*67e74705SXin Li // rdar://5739832 - operator new should check for overflow in multiply.
f2(long N)20*67e74705SXin Li void *f2(long N) {
21*67e74705SXin Li   return new int[N];
22*67e74705SXin Li 
23*67e74705SXin Li // SANE:      [[UWO:%.*]] = call {{.*}} @llvm.umul.with.overflow
24*67e74705SXin Li // SANE-NEXT: [[OVER:%.*]] = extractvalue {{.*}} [[UWO]], 1
25*67e74705SXin Li // SANE-NEXT: [[SUM:%.*]] = extractvalue {{.*}} [[UWO]], 0
26*67e74705SXin Li // SANE-NEXT: [[RESULT:%.*]] = select i1 [[OVER]], i32 -1, i32 [[SUM]]
27*67e74705SXin Li // SANE-NEXT: call i8* @_Znaj(i32 [[RESULT]])
28*67e74705SXin Li }
29*67e74705SXin Li 
30*67e74705SXin Li // SANE: declare noalias i8* @_Znaj(
31*67e74705SXin Li // SANENOT: declare i8* @_Znaj(
32