1*f4a2713aSLionel Sambuc // RUN: not %clang_cc1 -verify -triple x86_64-apple-darwin -emit-llvm -o - %s | FileCheck %s 2*f4a2713aSLionel Sambuc 3*f4a2713aSLionel Sambuc // CHECK: @a = global i32 10 4*f4a2713aSLionel Sambuc int a = 10; 5*f4a2713aSLionel Sambuc // CHECK: @ar = constant i32* @a 6*f4a2713aSLionel Sambuc int &ar = a; 7*f4a2713aSLionel Sambuc 8*f4a2713aSLionel Sambuc void f(); 9*f4a2713aSLionel Sambuc // CHECK: @fr = constant void ()* @_Z1fv 10*f4a2713aSLionel Sambuc void (&fr)() = f; 11*f4a2713aSLionel Sambuc 12*f4a2713aSLionel Sambuc struct S { int& a; }; 13*f4a2713aSLionel Sambuc // CHECK: @s = global %struct.S { i32* @a } 14*f4a2713aSLionel Sambuc S s = { a }; 15*f4a2713aSLionel Sambuc 16*f4a2713aSLionel Sambuc // PR5581 17*f4a2713aSLionel Sambuc namespace PR5581 { 18*f4a2713aSLionel Sambuc class C { 19*f4a2713aSLionel Sambuc public: 20*f4a2713aSLionel Sambuc enum { e0, e1 }; 21*f4a2713aSLionel Sambuc unsigned f; 22*f4a2713aSLionel Sambuc }; 23*f4a2713aSLionel Sambuc 24*f4a2713aSLionel Sambuc // CHECK: @_ZN6PR55812g0E = global %"class.PR5581::C" { i32 1 } 25*f4a2713aSLionel Sambuc C g0 = { C::e1 }; 26*f4a2713aSLionel Sambuc } 27*f4a2713aSLionel Sambuc 28*f4a2713aSLionel Sambuc namespace test2 { 29*f4a2713aSLionel Sambuc struct A { 30*f4a2713aSLionel Sambuc static const double d = 1.0; 31*f4a2713aSLionel Sambuc static const float f = d / 2; 32*f4a2713aSLionel Sambuc static int g(); 33*f4a2713aSLionel Sambuc } a; 34*f4a2713aSLionel Sambuc 35*f4a2713aSLionel Sambuc // CHECK: @_ZN5test22t0E = global double {{1\.0+e\+0+}}, align 8 36*f4a2713aSLionel Sambuc // CHECK: @_ZN5test22t1E = global [2 x double] [double {{1\.0+e\+0+}}, double {{5\.0+e-0*}}1], align 16 37*f4a2713aSLionel Sambuc // CHECK: @_ZN5test22t2E = global double* @_ZN5test21A1d 38*f4a2713aSLionel Sambuc // CHECK: @_ZN5test22t3E = global {{.*}} @_ZN5test21A1g 39*f4a2713aSLionel Sambuc double t0 = A::d; 40*f4a2713aSLionel Sambuc double t1[] = { A::d, A::f }; 41*f4a2713aSLionel Sambuc const double *t2 = &a.d; 42*f4a2713aSLionel Sambuc int (*t3)() = &a.g; 43*f4a2713aSLionel Sambuc } 44*f4a2713aSLionel Sambuc 45*f4a2713aSLionel Sambuc // We don't expect to fold this in the frontend, but make sure it doesn't crash. 46*f4a2713aSLionel Sambuc // CHECK: @PR9558 = global float 0.000000e+0 47*f4a2713aSLionel Sambuc float PR9558 = reinterpret_cast<const float&>("asd"); 48*f4a2713aSLionel Sambuc 49*f4a2713aSLionel Sambuc // An initialized const automatic variable cannot be promoted to a constant 50*f4a2713aSLionel Sambuc // global if it has a mutable member. 51*f4a2713aSLionel Sambuc struct MutableMember { 52*f4a2713aSLionel Sambuc mutable int n; 53*f4a2713aSLionel Sambuc }; writeToMutable()54*f4a2713aSLionel Sambucint writeToMutable() { 55*f4a2713aSLionel Sambuc // CHECK-NOT: {{.*}}MM{{.*}} = {{.*}}constant 56*f4a2713aSLionel Sambuc const MutableMember MM = { 0 }; 57*f4a2713aSLionel Sambuc return ++MM.n; 58*f4a2713aSLionel Sambuc } 59*f4a2713aSLionel Sambuc 60*f4a2713aSLionel Sambuc // Make sure we don't try to fold this in the frontend; the backend can't 61*f4a2713aSLionel Sambuc // handle it. 62*f4a2713aSLionel Sambuc // CHECK: @PR11705 = global i128 0 63*f4a2713aSLionel Sambuc __int128_t PR11705 = (__int128_t)&PR11705; 64*f4a2713aSLionel Sambuc 65*f4a2713aSLionel Sambuc // Make sure we don't try to fold this either. 66*f4a2713aSLionel Sambuc // CHECK: @_ZZ23UnfoldableAddrLabelDiffvE1x = internal global i128 0 UnfoldableAddrLabelDiff()67*f4a2713aSLionel Sambucvoid UnfoldableAddrLabelDiff() { static __int128_t x = (long)&&a-(long)&&b; a:b:return;} 68*f4a2713aSLionel Sambuc 69*f4a2713aSLionel Sambuc // But make sure we do fold this. 70*f4a2713aSLionel Sambuc // CHECK: @_ZZ21FoldableAddrLabelDiffvE1x = internal global i64 sub (i64 ptrtoint (i8* blockaddress(@_Z21FoldableAddrLabelDiffv FoldableAddrLabelDiff()71*f4a2713aSLionel Sambucvoid FoldableAddrLabelDiff() { static long x = (long)&&a-(long)&&b; a:b:return;} 72*f4a2713aSLionel Sambuc 73*f4a2713aSLionel Sambuc // CHECK: @i = constant i32* bitcast (float* @PR9558 to i32*) 74*f4a2713aSLionel Sambuc int &i = reinterpret_cast<int&>(PR9558); 75*f4a2713aSLionel Sambuc 76*f4a2713aSLionel Sambuc int arr[2]; 77*f4a2713aSLionel Sambuc // CHECK: @pastEnd = constant i32* bitcast (i8* getelementptr (i8* bitcast ([2 x i32]* @arr to i8*), i64 8) to i32*) 78*f4a2713aSLionel Sambuc int &pastEnd = arr[2]; 79