forked from OSchip/llvm-project
176 lines
6.5 KiB
C++
176 lines
6.5 KiB
C++
// RUN: %clang_cc1 -std=c++1z -triple x86_64-linux-gnu -emit-llvm -o - %s | FileCheck %s
|
|
|
|
namespace std {
|
|
using size_t = decltype(sizeof(0));
|
|
template<typename> struct tuple_size;
|
|
template<size_t, typename> struct tuple_element;
|
|
}
|
|
|
|
struct Y { int n; };
|
|
struct X { X(); X(Y); X(const X&); ~X(); };
|
|
|
|
struct A { int a : 13; bool b; };
|
|
|
|
struct B {};
|
|
template<> struct std::tuple_size<B> { enum { value = 2 }; };
|
|
template<> struct std::tuple_element<0,B> { using type = X; };
|
|
template<> struct std::tuple_element<1,B> { using type = const int&; };
|
|
template<int N> auto get(B) {
|
|
if constexpr (N == 0)
|
|
return Y();
|
|
else
|
|
return 0.0;
|
|
}
|
|
|
|
using C = int[2];
|
|
|
|
typedef int D __attribute__((ext_vector_type(2)));
|
|
|
|
using E = _Complex int;
|
|
|
|
template<typename T> T &make();
|
|
|
|
// CHECK: @_ZDC2a12a2E ={{.*}} global {{.*}} zeroinitializer, align 4
|
|
auto [a1, a2] = make<A>();
|
|
// CHECK: @_ZDC2b12b2E ={{.*}} global {{.*}} zeroinitializer, align 1
|
|
// CHECK: @b1 ={{.*}} global {{.*}}* null, align 8
|
|
// CHECK: @_ZGR2b1_ = internal global {{.*}} zeroinitializer, align 1
|
|
// CHECK: @b2 ={{.*}} global i32* null, align 8
|
|
// CHECK: @_ZGR2b2_ = internal global i32 0, align 4
|
|
auto [b1, b2] = make<B>();
|
|
// CHECK: @_ZDC2c12c2E ={{.*}} global [2 x i32]* null, align 8
|
|
auto &[c1, c2] = make<C>();
|
|
// CHECK: @_ZDC2d12d2E ={{.*}} global <2 x i32> zeroinitializer, align 8
|
|
auto [d1, d2] = make<D>();
|
|
// CHECK: @_ZDC2e12e2E ={{.*}} global { i32, i32 } zeroinitializer, align 4
|
|
auto [e1, e2] = make<E>();
|
|
|
|
// CHECK: call {{.*}}* @_Z4makeI1AERT_v()
|
|
// CHECK: call {{.*}}memcpy{{.*}}@_ZDC2a12a2E
|
|
|
|
// CHECK: @_Z4makeI1BERT_v()
|
|
// CHECK: call i32 @_Z3getILi0EEDa1B()
|
|
// CHECK: call void @_ZN1XC1E1Y({{.*}}* {{[^,]*}} @_ZGR2b1_, i32
|
|
// CHECK: call i32 @__cxa_atexit({{.*}}@_ZN1XD1Ev{{.*}}@_ZGR2b1_
|
|
// CHECK: store {{.*}}* @_ZGR2b1_,
|
|
//
|
|
// CHECK: call double @_Z3getILi1EEDa1B()
|
|
// CHECK: fptosi double %{{.*}} to i32
|
|
// CHECK: store i32 %{{.*}}, i32* @_ZGR2b2_
|
|
// CHECK: store i32* @_ZGR2b2_, i32** @b2
|
|
|
|
// CHECK: call {{.*}}* @_Z4makeIA2_iERT_v()
|
|
// CHECK: store {{.*}}, [2 x i32]** @_ZDC2c12c2E
|
|
|
|
// CHECK: call {{.*}}* @_Z4makeIDv2_iERT_v()
|
|
// CHECK: store {{.*}}, <2 x i32>* @_ZDC2d12d2E, align 8
|
|
|
|
// CHECK: call {{.*}}* @_Z4makeICiERT_v()
|
|
// CHECK: store i32 %{{.*}}, i32* getelementptr inbounds ({ i32, i32 }, { i32, i32 }* @_ZDC2e12e2E, i32 0, i32 0)
|
|
// CHECK: store i32 %{{.*}}, i32* getelementptr inbounds ({ i32, i32 }, { i32, i32 }* @_ZDC2e12e2E, i32 0, i32 1)
|
|
|
|
// CHECK: define{{.*}} i32 @_Z12test_globalsv()
|
|
int test_globals() {
|
|
return a2 + b2 + c2 + d2 + e2;
|
|
// CHECK: load i8, i8* getelementptr inbounds (%struct.A, %struct.A* @_ZDC2a12a2E, i32 0, i32 1)
|
|
//
|
|
// CHECK: %[[b2:.*]] = load i32*, i32** @b2
|
|
// CHECK: load i32, i32* %[[b2]]
|
|
//
|
|
// CHECK: %[[c1c2:.*]] = load [2 x i32]*, [2 x i32]** @_ZDC2c12c2E
|
|
// CHECK: %[[c2:.*]] = getelementptr inbounds [2 x i32], [2 x i32]* %[[c1c2]], i64 0, i64 1
|
|
// CHECK: load i32, i32* %[[c2]]
|
|
//
|
|
// CHECK: %[[d1d2:.*]] = load <2 x i32>, <2 x i32>* @_ZDC2d12d2E
|
|
// CHECK: extractelement <2 x i32> %[[d1d2]], i32 1
|
|
//
|
|
// CHECK: load i32, i32* getelementptr inbounds ({ i32, i32 }, { i32, i32 }* @_ZDC2e12e2E, i32 0, i32 1)
|
|
}
|
|
|
|
// CHECK: define{{.*}} i32 @_Z11test_localsv()
|
|
int test_locals() {
|
|
auto [b1, b2] = make<B>();
|
|
|
|
// CHECK: @_Z4makeI1BERT_v()
|
|
// CHECK: call i32 @_Z3getILi0EEDa1B()
|
|
// CHECK: call void @_ZN1XC1E1Y({{.*}}* {{[^,]*}} %[[b1:.*]], i32
|
|
//
|
|
// CHECK: call double @_Z3getILi1EEDa1B()
|
|
// CHECK: %[[cvt:.*]] = fptosi double %{{.*}} to i32
|
|
// CHECK: store i32 %[[cvt]], i32* %[[b2:.*]],
|
|
// CHECK: store i32* %[[b2]], i32** %[[b2ref:.*]],
|
|
|
|
return b2;
|
|
// CHECK: %[[b2:.*]] = load i32*, i32** %[[b2ref]]
|
|
// CHECK: load i32, i32* %[[b2]]
|
|
|
|
// CHECK: call {{.*}}@_ZN1XD1Ev({{.*}}%[[b1]])
|
|
}
|
|
|
|
// CHECK: define{{.*}} void @_Z13test_bitfieldR1A(
|
|
void test_bitfield(A &a) {
|
|
auto &[a1, a2] = a;
|
|
a1 = 5;
|
|
// CHECK: load i16, i16* %[[BITFIELD:.*]],
|
|
// CHECK: and i16 %{{.*}}, -8192
|
|
// CHECK: or i16 %{{.*}}, 5
|
|
// CHECK: store i16 %{{.*}}, i16* %[[BITFIELD]],
|
|
}
|
|
|
|
// CHECK-LABEL: define {{.*}}@_Z18test_static_simple
|
|
void test_static_simple() {
|
|
static auto [x1, x2] = make<A>();
|
|
// CHECK: load atomic {{.*}}i64* @_ZGVZ18test_static_simplevEDC2x12x2E
|
|
// CHECK: br i1
|
|
// CHECK: @__cxa_guard_acquire(
|
|
// CHECK: call {{.*}} @_Z4makeI1AERT_v(
|
|
// CHECK: memcpy{{.*}} @_ZZ18test_static_simplevEDC2x12x2E
|
|
// CHECK: @__cxa_guard_release(
|
|
}
|
|
|
|
// CHECK-LABEL: define {{.*}}@_Z17test_static_tuple
|
|
int test_static_tuple() {
|
|
// Note that the desugaring specified for this construct requires three
|
|
// separate guarded initializations. It is possible for an exception to be
|
|
// thrown after the first initialization and before the second, and if that
|
|
// happens, we are not permitted to rerun the first initialization, so we
|
|
// can't combine these into a single guarded initialization in general.
|
|
static auto [x1, x2] = make<B>();
|
|
|
|
// Initialization of the implied variable.
|
|
// CHECK: load atomic {{.*}} @_ZGVZ17test_static_tuplevEDC2x12x2E
|
|
// CHECK: br i1
|
|
// CHECK: @__cxa_guard_acquire({{.*}} @_ZGVZ17test_static_tuplevEDC2x12x2E)
|
|
// CHECK: call {{.*}} @_Z4makeI1BERT_v(
|
|
// CHECK: @__cxa_guard_release({{.*}} @_ZGVZ17test_static_tuplevEDC2x12x2E)
|
|
|
|
// Initialization of the secret 'x1' variable.
|
|
// CHECK: load atomic {{.*}} @_ZGVZ17test_static_tuplevE2x1
|
|
// CHECK: br i1
|
|
// CHECK: @__cxa_guard_acquire({{.*}} @_ZGVZ17test_static_tuplevE2x1)
|
|
// CHECK: call {{.*}} @_Z3getILi0EEDa1B(
|
|
// CHECK: call {{.*}} @_ZN1XC1E1Y({{.*}} @_ZGRZ17test_static_tuplevE2x1_,
|
|
// CHECK: call {{.*}} @__cxa_atexit({{.*}} @_ZN1XD1Ev {{.*}} @_ZGRZ17test_static_tuplevE2x1_
|
|
// CHECK: store {{.*}} @_ZGRZ17test_static_tuplevE2x1_, {{.*}} @_ZZ17test_static_tuplevE2x1
|
|
// CHECK: call void @__cxa_guard_release({{.*}} @_ZGVZ17test_static_tuplevE2x1)
|
|
|
|
// Initialization of the secret 'x2' variable.
|
|
// CHECK: load atomic {{.*}} @_ZGVZ17test_static_tuplevE2x2
|
|
// CHECK: br i1
|
|
// CHECK: @__cxa_guard_acquire({{.*}} @_ZGVZ17test_static_tuplevE2x2)
|
|
// CHECK: call {{.*}} @_Z3getILi1EEDa1B(
|
|
// CHECK: store {{.*}}, {{.*}} @_ZGRZ17test_static_tuplevE2x2_
|
|
// CHECK: store {{.*}} @_ZGRZ17test_static_tuplevE2x2_, {{.*}} @_ZZ17test_static_tuplevE2x2
|
|
// CHECK: call void @__cxa_guard_release({{.*}} @_ZGVZ17test_static_tuplevE2x2)
|
|
|
|
struct Inner {
|
|
// CHECK-LABEL: define {{.*}}@_ZZ17test_static_tuplevEN5Inner1fEv(
|
|
// FIXME: This first load should be constant-folded to the _ZGV... temporary.
|
|
// CHECK: load {{.*}} @_ZZ17test_static_tuplevE2x2
|
|
// CHECK: load
|
|
// CHECK: ret
|
|
int f() { return x2; }
|
|
};
|
|
return Inner().f();
|
|
}
|