45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
// RUN: %clang_cc1 -std=c++11 -S -emit-llvm -o - %s -triple x86_64-linux-gnu | FileCheck %s
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struct A { int a, b; int f(); };
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// CHECK: define {{.*}}@_Z3fn1i(
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int fn1(int x) {
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// CHECK: %[[INITLIST:.*]] = alloca %struct.A
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// CHECK: %[[A:.*]] = getelementptr inbounds %struct.A* %[[INITLIST]], i32 0, i32 0
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// CHECK: store i32 %{{.*}}, i32* %[[A]], align 4
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// CHECK: %[[B:.*]] = getelementptr inbounds %struct.A* %[[INITLIST]], i32 0, i32 1
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// CHECK: store i32 5, i32* %[[B]], align 4
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// CHECK: call i32 @_ZN1A1fEv(%struct.A* %[[INITLIST]])
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return A{x, 5}.f();
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}
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struct B { int &r; int &f() { return r; } };
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// CHECK: define {{.*}}@_Z3fn2Ri(
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int &fn2(int &v) {
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// CHECK: %[[INITLIST2:.*]] = alloca %struct.B, align 8
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// CHECK: %[[R:.*]] = getelementptr inbounds %struct.B* %[[INITLIST2:.*]], i32 0, i32 0
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// CHECK: store i32* %{{.*}}, i32** %[[R]], align 8
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// CHECK: call nonnull i32* @_ZN1B1fEv(%struct.B* %[[INITLIST2:.*]])
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return B{v}.f();
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}
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// CHECK: define {{.*}}@__cxx_global_var_init(
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//
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// CHECK: call {{.*}}@_ZN14NonTrivialInit1AC1Ev(
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// CHECK: getelementptr inbounds {{.*}}, i64 1
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// CHECK: br i1
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//
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// CHECK: getelementptr inbounds {{.*}}, i64 1
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// CHECK: icmp eq {{.*}}, i64 30
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// CHECK: br i1
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//
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// CHECK: call i32 @__cxa_atexit(
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namespace NonTrivialInit {
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struct A { A(); A(const A&) = delete; ~A(); };
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struct B { A a[20]; };
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// NB, this must be large enough to be worth memsetting for this test to be
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// meaningful.
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B b[30] = {};
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}
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