diff options
Diffstat (limited to 'test/CodeGenCXX/const-init-cxx1y.cpp')
-rw-r--r-- | test/CodeGenCXX/const-init-cxx1y.cpp | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/test/CodeGenCXX/const-init-cxx1y.cpp b/test/CodeGenCXX/const-init-cxx1y.cpp new file mode 100644 index 0000000..978c428 --- /dev/null +++ b/test/CodeGenCXX/const-init-cxx1y.cpp @@ -0,0 +1,48 @@ +// RUN: not %clang_cc1 -verify -triple x86_64-apple-darwin -emit-llvm -o - %s -std=c++1y | FileCheck %s + +struct A { + constexpr A() : n(1) {} + ~A(); + int n; +}; +struct B : A { + A a[3]; + constexpr B() { + ++a[0].n; + a[1].n += 2; + a[2].n = n + a[1].n; + } +}; +B b; + +// CHECK: @b = global {{.*}} i32 1, {{.*}} { i32 2 }, {{.*}} { i32 3 }, {{.*}} { i32 4 } +// CHECK-NOT: _ZN1BC + +namespace ModifyStaticTemporary { + struct A { int &&temporary; int x; }; + constexpr int f(int &r) { r *= 9; return r - 12; } + A a = { 6, f(a.temporary) }; + // CHECK: @_ZGRN21ModifyStaticTemporary1aE = private global i32 54 + // CHECK: @_ZN21ModifyStaticTemporary1aE = global {{.*}} i32* @_ZGRN21ModifyStaticTemporary1aE, i32 42 + + A b = { 7, ++b.temporary }; + // CHECK: @_ZGRN21ModifyStaticTemporary1bE = private global i32 8 + // CHECK: @_ZN21ModifyStaticTemporary1bE = global {{.*}} i32* @_ZGRN21ModifyStaticTemporary1bE, i32 8 + + // Can't emit all of 'c' as a constant here, so emit the initial value of + // 'c.temporary', not the value as modified by the partial evaluation within + // the initialization of 'c.x'. + A c = { 10, (++c.temporary, b.x) }; + // CHECK: @_ZGRN21ModifyStaticTemporary1cE = private global i32 10 + // CHECK: @_ZN21ModifyStaticTemporary1cE = global {{.*}} zeroinitializer +} + +// CHECK: __cxa_atexit({{.*}} @_ZN1BD1Ev {{.*}} @b + +// CHECK: define +// CHECK-NOT: @_ZGRN21ModifyStaticTemporary1cE +// CHECK: store {{.*}} @_ZGRN21ModifyStaticTemporary1cE, {{.*}} @_ZN21ModifyStaticTemporary1cE +// CHECK: add +// CHECK: store +// CHECK: load {{.*}} @_ZN21ModifyStaticTemporary1bE +// CHECK: store {{.*}} @_ZN21ModifyStaticTemporary1cE |