32 lines · cpp
1// RUN: %clang_cc1 -triple x86_64-linux-gnu -std=c++20 %s -emit-llvm -o - | FileCheck %s --check-prefixes=ITANIUM,CHECK2// RUN: %clang_cc1 -triple x86_64-windows -std=c++20 %s -emit-llvm -o - | FileCheck %s --check-prefixes=MSABI,CHECK3 4struct S { char buf[32]; };5template<S s> constexpr const char *begin() { return s.buf; }6template<S s> constexpr const char *end() { return s.buf + __builtin_strlen(s.buf); }7 8namespace { struct T { char buf[32]; }; }9template<T t> constexpr const char* begin_anon() { return t.buf; }10 11// ITANIUM: [[HELLO:@_ZTAXtl1StlA32_cLc104ELc101ELc108ELc108ELc111ELc32ELc119ELc111ELc114ELc108ELc100EEEE]]12// 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@@@@@"]]13// 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 }> }, comdat14// 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 }> }, comdat15 16 17// ITANIUM: @p18// MSABI: @"?p@@3PEBDEB"19// CHECK-SAME: global ptr [[HELLO]]20const char *p = begin<S{"hello world"}>();21// ITANIUM: @q22// MSABI: @"?q@@3PEBDEB"23// CHECK-SAME: global ptr getelementptr (i8, ptr [[HELLO]], i64 11)24const char *q = end<S{"hello world"}>();25 26 27// CHECK: internal constant { <{ [10 x i8], [22 x i8] }> } { <{ [10 x i8], [22 x i8] }> <{ [10 x i8] c"hello anon", [22 x i8] zeroinitializer }> }28// CHECK-NOT: comdat29// ITANIUM: @r30// MSABI: @"?r@@3PEBDEB"31const char *r = begin_anon<T{"hello anon"}>();32