clang/test/CodeGen/cfi-icall-generalize.c

   1 // RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-icall -fsanitize-trap=cfi-icall -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=UNGENERALIZED %s
   2 // RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-icall -fsanitize-trap=cfi-icall -fsanitize-cfi-icall-generalize-pointers -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=GENERALIZED %s
   3
   4 // Test that const char* is generalized to const ptr and that const char** is
   5 // generalized to ptr
   6
   7 // CHECK: define{{.*}} ptr @f({{.*}} !type [[TYPE:![0-9]+]] !type [[TYPE_GENERALIZED:![0-9]+]]
   8 int** f(const char *a, const char **b) {
   9   return (int**)0;
  10 }
  11
  12 void g(int** (*fp)(const char *, const char **)) {
  13   // UNGENERALIZED: call i1 @llvm.type.test(ptr {{.*}}, metadata !"_ZTSFPPiPKcPS2_E")
  14   // GENERALIZED: call i1 @llvm.type.test(ptr {{.*}}, metadata !"_ZTSFPvPKvS_E.generalized")
  15   fp(0, 0);
  16 }
  17
  18 // CHECK: [[TYPE]] = !{i64 0, !"_ZTSFPPiPKcPS2_E"}
  19 // CHECK: [[TYPE_GENERALIZED]] = !{i64 0, !"_ZTSFPvPKvS_E.generalized"}