clang/test/CodeGen/ubsan-ignorelist.c

   1 // Verify ubsan doesn't emit checks for ignorelisted functions and files
   2 // RUN: echo "fun:hash" > %t-func.ignorelist
   3 // RUN: echo "src:%s" | sed -e 's/\\/\\\\/g' > %t-file.ignorelist
   4 // RUN: %clang_cc1 -fsanitize=unsigned-integer-overflow -emit-llvm %s -o - | FileCheck %s --check-prefix=DEFAULT
   5 // RUN: %clang_cc1 -fsanitize=unsigned-integer-overflow -fsanitize-ignorelist=%t-func.ignorelist -emit-llvm %s -o - | FileCheck %s --check-prefix=FUNC
   6 // RUN: %clang_cc1 -fsanitize=unsigned-integer-overflow -fsanitize-ignorelist=%t-file.ignorelist -emit-llvm %s -o - | FileCheck %s --check-prefix=FILE
   7
   8 unsigned i;
   9
  10 // DEFAULT: @hash
  11 // FUNC: @hash
  12 // FILE: @hash
  13 unsigned hash(void) {
  14 // DEFAULT: call {{.*}}void @__ubsan
  15 // FUNC-NOT: call {{.*}}void @__ubsan
  16 // FILE-NOT: call {{.*}}void @__ubsan
  17   return i * 37;
  18 }
  19
  20 // DEFAULT: @add
  21 // FUNC: @add
  22 // FILE: @add
  23 unsigned add(void) {
  24 // DEFAULT: call {{.*}}void @__ubsan
  25 // FUNC: call {{.*}}void @__ubsan
  26 // FILE-NOT: call {{.*}}void @__ubsan
  27   return i + 1;
  28 }