1 // RUN: %clang_cc1 -triple x86_64-linux-gnu -std=c++20 %s -emit-llvm -o - | FileCheck %s
2 // RUN: %clang_cc1 -triple x86_64-linux-gnu -std=c++20 %s -emit-llvm -o - -fexperimental-new-constant-interpreter | FileCheck %s
3
4 struct S { char buf[32]; };
f()5 template<S s> constexpr const char* f() { return s.buf; }
6 const char* fbuf = f<S{"a"}>();
7 // CHECK: @_ZTAXtl1StlA32_cLc97EEEE = linkonce_odr constant { <{ i8, [31 x i8] }> }
8
9 namespace {
10 struct UN { char buf[64]; };
11 }
g()12 template <UN un> constexpr const char* g() { return un.buf; }
13 const char* gbuf = g<UN{"b"}>();
14 // CHECK: @_ZTAXtlN12_GLOBAL__N_12UNEtlA64_cLc98EEEE = internal constant { <{ i8, [63 x i8] }> }
15
16 struct Foo { int *i; };
17 int m = 0;
18 namespace { int n; }
19
20 template <Foo foo>
h()21 const int* h() { return foo.i; }
22
23 const int* hm = h<Foo{&m}>();
24 // CHECK: @_ZTAXtl3FooadL_Z1mEEE = linkonce_odr constant %struct.Foo { ptr @m }
25
26 const int* hn = h<Foo{&n}>();
27 // CHECK: @_ZTAXtl3FooadL_ZN12_GLOBAL__N_11nEEEE = internal constant %struct.Foo { ptr @_ZN12_GLOBAL__N_11nE }
28