clang/test/CodeGenCXX/mangle-ms-auto-templates.cpp

   1 // RUN: %clang_cc1 -std=c++17 -fms-compatibility-version=19.20 -emit-llvm %s -o - -fms-extensions -fdelayed-template-parsing -triple=x86_64-pc-windows-msvc | FileCheck --check-prefix=AFTER %s
   2 // RUN: %clang_cc1 -std=c++17 -fms-compatibility-version=19.14 -emit-llvm %s -o - -fms-extensions -fdelayed-template-parsing -triple=x86_64-pc-windows-msvc | FileCheck --check-prefix=BEFORE %s
   3
   4 template <auto a>
   5 class AutoParmTemplate {
   6 public:
   7   AutoParmTemplate() {}
   8 };
   9
  10 template <auto...>
  11 class AutoParmsTemplate {
  12 public:
  13   AutoParmsTemplate() {}
  14 };
  15
  16 template <auto a>
  17 auto AutoFunc() {
  18   return a;
  19 }
  20
  21 void template_mangling() {
  22   AutoFunc<1>();
  23   // AFTER: call {{.*}} @"??$AutoFunc@$MH00@@YA?A?<auto>@@XZ"
  24   // BEFORE: call {{.*}} @"??$AutoFunc@$00@@YA?A?<auto>@@XZ"
  25   AutoParmTemplate<0> auto_int;
  26   // AFTER: call {{.*}} @"??0?$AutoParmTemplate@$MH0A@@@QEAA@XZ"
  27   // BEFORE: call {{.*}} @"??0?$AutoParmTemplate@$0A@@@QEAA@XZ"
  28   AutoParmTemplate<'a'> auto_char;
  29   // AFTER: call {{.*}} @"??0?$AutoParmTemplate@$MD0GB@@@QEAA@XZ"
  30   // BEFORE: call {{.*}} @"??0?$AutoParmTemplate@$0GB@@@QEAA@XZ"
  31   AutoParmTemplate<9223372036854775807LL> int64_max;
  32   // AFTER: call {{.*}} @"??0?$AutoParmTemplate@$M_J0HPPPPPPPPPPPPPPP@@@QEAA@XZ"
  33   // BEFORE: call {{.*}} @"??0?$AutoParmTemplate@$0HPPPPPPPPPPPPPPP@@@QEAA@XZ"
  34   AutoParmTemplate<-9223372036854775807LL - 1LL> int64_min;
  35   // AFTER: call {{.*}} @"??0?$AutoParmTemplate@$M_J0?IAAAAAAAAAAAAAAA@@@QEAA@XZ"
  36   // BEFORE: call {{.*}} @"??0?$AutoParmTemplate@$0?IAAAAAAAAAAAAAAA@@@QEAA@XZ"
  37   AutoParmTemplate<(unsigned long long)-1> uint64_neg_1;
  38   // AFTER: call {{.*}} @"??0?$AutoParmTemplate@$M_K0?0@@QEAA@XZ"
  39   // BEFORE: call {{.*}} @"??0?$AutoParmTemplate@$0?0@@QEAA@XZ"
  40
  41   AutoParmsTemplate<0, false, 'a'> c1;
  42   // AFTER: call {{.*}} @"??0?$AutoParmsTemplate@$MH0A@$M_N0A@$MD0GB@@@QEAA@XZ"
  43   // BEFORE: call {{.*}} @"??0?$AutoParmsTemplate@$0A@$0A@$0GB@@@QEAA@XZ"
  44   AutoParmsTemplate<(unsigned long)1, 9223372036854775807LL> c2;
  45   // AFTER: call {{.*}} @"??0?$AutoParmsTemplate@$MK00$M_J0HPPPPPPPPPPPPPPP@@@QEAA@XZ"
  46   // BEFORE: call {{.*}} @"??0?$AutoParmsTemplate@$00$0HPPPPPPPPPPPPPPP@@@QEAA@XZ"
  47 }