| // RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -o - %s | FileCheck %s |
| // RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -o - %s -O2 | opt - -S -globalopt -o - | FileCheck %s --check-prefix=O1 |
| // RUN: %clang_cc1 -triple %ms_abi_triple -emit-llvm -o - %s | FileCheck %s |
| // RUN: %clang_cc1 -triple %ms_abi_triple -emit-llvm -o - %s -O2 | opt - -S -globalopt -o - | FileCheck %s --check-prefix=O1 |
| |
| // Check that GlobalOpt can eliminate static constructors for simple implicit |
| // constructors. This is a targeted integration test to make sure that LLVM's |
| // optimizers are able to process Clang's IR. GlobalOpt in particular is |
| // sensitive to the casts we emit. |
| |
| // CHECK: @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] |
| // CHECK: [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_ctor_globalopt.cpp, i8* null }] |
| |
| // CHECK-LABEL: define internal {{.*}}void @_GLOBAL__sub_I_ctor_globalopt.cpp() |
| // CHECK: call {{.*}}void @ |
| // CHECK-NOT: call{{ }} |
| |
| // O1: @llvm.global_ctors = appending global [0 x { i32, void ()*, i8* }] zeroinitializer |
| |
| struct A { |
| virtual void f(); |
| int a; |
| }; |
| struct B : virtual A { |
| virtual void g(); |
| int b; |
| }; |
| B b; |
