clang/test/CodeGenCXX/template-param-objects.cpp

   1 // RUN: %clang_cc1 -triple x86_64-linux-gnu -std=c++20 %s -emit-llvm -o - | FileCheck %s --check-prefixes=ITANIUM,CHECK
   2 // RUN: %clang_cc1 -triple x86_64-windows -std=c++20 %s -emit-llvm -o - | FileCheck %s --check-prefixes=MSABI,CHECK
   3
   4 struct S { char buf[32]; };
   5 template<S s> constexpr const char *begin() { return s.buf; }
   6 template<S s> constexpr const char *end() { return s.buf + __builtin_strlen(s.buf); }
   7
   8 // ITANIUM: [[HELLO:@_ZTAXtl1StlA32_cLc104ELc101ELc108ELc108ELc111ELc32ELc119ELc111ELc114ELc108ELc100EEEE]]
   9 // MSABI: [[HELLO:@"[?][?]__N2US@@3D0GI@@0GF@@0GM@@0GM@@0GP@@0CA@@0HH@@0GP@@0HC@@0GM@@0GE@@0A@@0A@@0A@@0A@@0A@@0A@@0A@@0A@@0A@@0A@@0A@@0A@@0A@@0A@@0A@@0A@@0A@@0A@@0A@@0A@@0A@@@@@"]]
  10 // ITANIUM-SAME: = linkonce_odr constant { <{ [11 x i8], [21 x i8] }> } { <{ [11 x i8], [21 x i8] }> <{ [11 x i8] c"hello world", [21 x i8] zeroinitializer }> }, comdat
  11 // MSABI-SAME: = linkonce_odr dso_local constant { <{ [11 x i8], [21 x i8] }> } { <{ [11 x i8], [21 x i8] }> <{ [11 x i8] c"hello world", [21 x i8] zeroinitializer }> }, comdat
  12
  13
  14 // ITANIUM: @p
  15 // MSABI: @"?p@@3PEBDEB"
  16 // CHECK-SAME: global ptr [[HELLO]]
  17 const char *p = begin<S{"hello world"}>();
  18 // ITANIUM: @q
  19 // MSABI: @"?q@@3PEBDEB"
  20 // CHECK-SAME: global ptr getelementptr (i8, ptr [[HELLO]], i64 11)
  21 const char *q = end<S{"hello world"}>();