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author | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
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committer | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
commit | be1de4be954c80875ad4108e0a33e8e131b2f2c0 (patch) | |
tree | 1fbbecf276bf7c7bdcbb4dd446099d6d90eaa516 /clang/test/CodeGenCXX/cxx0x-initializer-references.cpp | |
parent | c4626a62754862d20b41e8a46a3574264ea80e6d (diff) | |
parent | f1bd2e48c5324d3f7cda4090c87f8a5b6f463ce2 (diff) |
Merge branch 'master' of ssh://bitbucket.org/czan/honours
Diffstat (limited to 'clang/test/CodeGenCXX/cxx0x-initializer-references.cpp')
-rw-r--r-- | clang/test/CodeGenCXX/cxx0x-initializer-references.cpp | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/cxx0x-initializer-references.cpp b/clang/test/CodeGenCXX/cxx0x-initializer-references.cpp new file mode 100644 index 0000000..4c847b8 --- /dev/null +++ b/clang/test/CodeGenCXX/cxx0x-initializer-references.cpp @@ -0,0 +1,69 @@ +// RUN: %clang_cc1 -std=c++11 -S -emit-llvm -o - %s | FileCheck %s + +namespace reference { + struct A { + int i1, i2; + }; + + void single_init() { + // No superfluous instructions allowed here, they could be + // hiding extra temporaries. + + // CHECK: store i32 1, i32* + // CHECK-NEXT: store i32* %{{.*}}, i32** + const int &cri2a = 1; + + // CHECK-NEXT: store i32 1, i32* + // CHECK-NEXT: store i32* %{{.*}}, i32** + const int &cri1a = {1}; + + // CHECK-NEXT: store i32 1, i32* + int i = 1; + // CHECK-NEXT: store i32* %{{.*}}, i32** + int &ri1a = {i}; + + // CHECK-NEXT: bitcast + // CHECK-NEXT: memcpy + A a{1, 2}; + // CHECK-NEXT: store %{{.*}}* %{{.*}}, %{{.*}}** % + A &ra1a = {a}; + + // CHECK-NEXT: ret + } + + void reference_to_aggregate() { + // CHECK: getelementptr {{.*}}, i32 0, i32 0 + // CHECK-NEXT: store i32 1 + // CHECK-NEXT: getelementptr {{.*}}, i32 0, i32 1 + // CHECK-NEXT: store i32 2 + // CHECK-NEXT: store %{{.*}}* %{{.*}}, %{{.*}}** %{{.*}}, align + const A &ra1{1, 2}; + + // CHECK-NEXT: getelementptr inbounds [3 x i32]* %{{.*}}, i{{32|64}} 0, i{{32|64}} 0 + // CHECK-NEXT: store i32 1 + // CHECK-NEXT: getelementptr inbounds i32* %{{.*}}, i{{32|64}} 1 + // CHECK-NEXT: store i32 2 + // CHECK-NEXT: getelementptr inbounds i32* %{{.*}}, i{{32|64}} 1 + // CHECK-NEXT: store i32 3 + // CHECK-NEXT: store [3 x i32]* %{{.*}}, [3 x i32]** %{{.*}}, align + const int (&arrayRef)[] = {1, 2, 3}; + + // CHECK-NEXT: ret + } + + struct B { + B(); + ~B(); + }; + + void single_init_temp_cleanup() + { + // Ensure lifetime extension. + + // CHECK: call void @_ZN9reference1BC1Ev + // CHECK-NEXT: store %{{.*}}* %{{.*}}, %{{.*}}** % + const B &rb{ B() }; + // CHECK: call void @_ZN9reference1BD1Ev + } + +} |