xref: /aosp_15_r20/external/clang/test/CodeGen/bounds-checking.c (revision 67e74705e28f6214e480b399dd47ea732279e315) 
1*67e74705SXin Li // RUN: %clang_cc1 -fsanitize=local-bounds -emit-llvm -triple x86_64-apple-darwin10 %s -o - | FileCheck %s
2*67e74705SXin Li // RUN: %clang_cc1 -fsanitize=array-bounds -O -fsanitize-trap=array-bounds -emit-llvm -triple x86_64-apple-darwin10 -DNO_DYNAMIC %s -o - | FileCheck %s
3*67e74705SXin Li 
4*67e74705SXin Li // CHECK-LABEL: @f
f(int b,int i)5*67e74705SXin Li double f(int b, int i) {
6*67e74705SXin Li   double a[b];
7*67e74705SXin Li   // CHECK: call {{.*}} @llvm.trap
8*67e74705SXin Li   return a[i];
9*67e74705SXin Li }
10*67e74705SXin Li 
11*67e74705SXin Li // CHECK-LABEL: @f2
f2()12*67e74705SXin Li void f2() {
13*67e74705SXin Li   // everything is constant; no trap possible
14*67e74705SXin Li   // CHECK-NOT: call {{.*}} @llvm.trap
15*67e74705SXin Li   int a[2];
16*67e74705SXin Li   a[1] = 42;
17*67e74705SXin Li 
18*67e74705SXin Li #ifndef NO_DYNAMIC
19*67e74705SXin Li   short *b = malloc(64);
20*67e74705SXin Li   b[5] = *a + a[1] + 2;
21*67e74705SXin Li #endif
22*67e74705SXin Li }
23*67e74705SXin Li 
24*67e74705SXin Li // CHECK-LABEL: @f3
f3()25*67e74705SXin Li void f3() {
26*67e74705SXin Li   int a[1];
27*67e74705SXin Li   // CHECK: call {{.*}} @llvm.trap
28*67e74705SXin Li   a[2] = 1;
29*67e74705SXin Li }
30