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