clang/test/CodeGenCXX/debug-info-programming-language.cpp

   1 // RUN: %clang_cc1 -dwarf-version=5 -emit-llvm -triple %itanium_abi_triple %s -o - \
   2 // RUN:   -x c++ -std=c++14 -O0 -disable-llvm-passes -debug-info-kind=limited \
   3 // RUN:   | FileCheck --check-prefix=CHECK-CPP14 %s
   4 // RUN: %clang_cc1 -dwarf-version=3 -emit-llvm -triple %itanium_abi_triple %s -o - \
   5 // RUN:   -x c++ -std=c++14 -O0 -disable-llvm-passes -debug-info-kind=limited \
   6 // RUN:   | FileCheck --check-prefix=CHECK-CPP14 %s
   7 // RUN: %clang_cc1 -dwarf-version=3 -emit-llvm -triple %itanium_abi_triple %s -o - \
   8 // RUN:   -x c++ -std=c++17 -O0 -disable-llvm-passes -debug-info-kind=limited \
   9 // RUN:   | FileCheck --check-prefix=CHECK-CPP17 %s
  10 // RUN: %clang_cc1 -dwarf-version=3 -emit-llvm -triple %itanium_abi_triple %s -o - \
  11 // RUN:   -x c++ -std=c++20 -O0 -disable-llvm-passes -debug-info-kind=limited \
  12 // RUN:   | FileCheck --check-prefix=CHECK-CPP20 %s
  13 // RUN: %clang_cc1 -dwarf-version=3 -gstrict-dwarf -emit-llvm -triple %itanium_abi_triple %s -o - \
  14 // RUN:   -x c++ -std=c++14 -O0 -disable-llvm-passes -debug-info-kind=limited | FileCheck %s
  15 // RUN: %clang_cc1 -dwarf-version=5 -gstrict-dwarf -emit-llvm -triple %itanium_abi_triple %s -o - \
  16 // RUN:   -x c++ -std=c++14 -O0 -disable-llvm-passes -debug-info-kind=limited \
  17 // RUN:   | FileCheck --check-prefix=CHECK-CPP14 %s
  18
  19 int main() {
  20   return 0;
  21 }
  22
  23 // Update these tests once support for DW_LANG_C_plus_plus_17/20 is added - it's
  24 // a complicated tradeoff. The language codes are already published/blessed by
  25 // the DWARF committee, but haven't been released in a published standard yet,
  26 // so consumers might not be ready for these codes & could regress functionality
  27 // (because they wouldn't be able to identify that the language was C++). The
  28 // DWARFv6 language encoding, separating language from language version, would
  29 // remove this problem/not require new codes for new language versions and make
  30 // it possible to identify the base language irrespective of the version.
  31 // CHECK-CPP14: distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14,
  32 // CHECK-CPP17: distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14,
  33 // CHECK-CPP20: distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14,
  34 // CHECK: distinct !DICompileUnit(language: DW_LANG_C_plus_plus,