forked from OSchip/llvm-project
204 lines
4.8 KiB
C++
204 lines
4.8 KiB
C++
// RUN: %clang_cc1 -triple aarch64-windows -ffreestanding -emit-llvm -O0 \
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// RUN: -x c++ -o - %s | FileCheck %s
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// Pass and return for type size <= 8 bytes.
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// CHECK: define {{.*}} i64 @{{.*}}f1{{.*}}()
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// CHECK: call i64 {{.*}}func1{{.*}}(i64 %3)
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struct S1 {
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int a[2];
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};
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S1 func1(S1 x);
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S1 f1() {
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S1 x;
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return func1(x);
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}
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// Pass and return type size <= 16 bytes.
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// CHECK: define {{.*}} [2 x i64] @{{.*}}f2{{.*}}()
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// CHECK: call [2 x i64] {{.*}}func2{{.*}}([2 x i64] %3)
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struct S2 {
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int a[4];
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};
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S2 func2(S2 x);
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S2 f2() {
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S2 x;
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return func2(x);
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}
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// Pass and return for type size > 16 bytes.
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// CHECK: define {{.*}} void @{{.*}}f3{{.*}}(%struct.S3* noalias sret(%struct.S3) align 4 %agg.result)
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// CHECK: call void {{.*}}func3{{.*}}(%struct.S3* sret(%struct.S3) align 4 %agg.result, %struct.S3* %agg.tmp)
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struct S3 {
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int a[5];
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};
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S3 func3(S3 x);
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S3 f3() {
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S3 x;
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return func3(x);
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}
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// Pass and return aggregate (of size < 16 bytes) with non-trivial destructor.
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// Passed directly but returned indirectly.
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// CHECK: define {{.*}} void {{.*}}f4{{.*}}(%struct.S4* inreg noalias sret(%struct.S4) align 4 %agg.result)
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// CHECK: call void {{.*}}func4{{.*}}(%struct.S4* inreg sret(%struct.S4) align 4 %agg.result, [2 x i64] %5)
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struct S4 {
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int a[3];
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~S4();
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};
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S4 func4(S4 x);
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S4 f4() {
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S4 x;
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return func4(x);
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}
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// Pass and return from instance method called from instance method.
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// CHECK: define {{.*}} void @{{.*}}bar@Q1{{.*}}(%class.Q1* {{[^,]*}} %this, %class.P1* inreg noalias sret(%class.P1) align 1 %agg.result)
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// CHECK: call void {{.*}}foo@P1{{.*}}(%class.P1* {{[^,]*}} %ref.tmp, %class.P1* inreg sret(%class.P1) align 1 %agg.result, i8 %1)
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class P1 {
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public:
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P1 foo(P1 x);
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};
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class Q1 {
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public:
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P1 bar();
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};
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P1 Q1::bar() {
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P1 p1;
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return P1().foo(p1);
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}
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// Pass and return from instance method called from free function.
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// CHECK: define {{.*}} void {{.*}}bar{{.*}}()
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// CHECK: call void {{.*}}foo@P2{{.*}}(%class.P2* {{[^,]*}} %ref.tmp, %class.P2* inreg sret(%class.P2) align 1 %retval, i8 %0)
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class P2 {
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public:
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P2 foo(P2 x);
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};
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P2 bar() {
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P2 p2;
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return P2().foo(p2);
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}
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// Pass and return an object with a user-provided constructor (passed directly,
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// returned indirectly)
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// CHECK: define {{.*}} void @{{.*}}f5{{.*}}(%struct.S5* inreg noalias sret(%struct.S5) align 4 %agg.result)
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// CHECK: call void {{.*}}func5{{.*}}(%struct.S5* inreg sret(%struct.S5) align 4 %agg.result, i64 {{.*}})
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struct S5 {
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S5();
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int x;
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};
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S5 func5(S5 x);
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S5 f5() {
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S5 x;
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return func5(x);
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}
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// Pass and return an object with a non-trivial explicitly defaulted constructor
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// (passed directly, returned directly)
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// CHECK: define {{.*}} i8 @"?f6@@YA?AUS6@@XZ"()
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// CHECK: call i8 {{.*}}func6{{.*}}(i64 {{.*}})
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struct S6a {
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S6a();
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};
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struct S6 {
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S6() = default;
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S6a x;
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};
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S6 func6(S6 x);
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S6 f6() {
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S6 x;
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return func6(x);
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}
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// Pass and return an object with a non-trivial implicitly defaulted constructor
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// (passed directly, returned directly)
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// CHECK: define {{.*}} i8 @"?f7@@YA?AUS7@@XZ"()
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// CHECK: call i8 {{.*}}func7{{.*}}(i64 {{.*}})
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struct S7 {
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S6a x;
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};
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S7 func7(S7 x);
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S7 f7() {
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S7 x;
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return func7(x);
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}
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struct S8a {
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~S8a();
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};
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// Pass and return an object with a non-trivial default destructor (passed
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// directly, returne indirectly)
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struct S8 {
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S8a x;
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int y;
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};
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// CHECK: define {{.*}} void {{.*}}?f8{{.*}}(%struct.S8* inreg noalias sret(%struct.S8) align 4 {{.*}})
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// CHECK: call void {{.*}}func8{{.*}}(%struct.S8* inreg sret(%struct.S8) align 4 {{.*}}, i64 {{.*}})
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S8 func8(S8 x);
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S8 f8() {
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S8 x;
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return func8(x);
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}
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// Pass and return an object with a non-trivial copy-assignment operator and
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// a trivial copy constructor (passed directly, returned indirectly)
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// CHECK: define {{.*}} void @"?f9@@YA?AUS9@@XZ"(%struct.S9* inreg noalias sret(%struct.S9) align 4 {{.*}})
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// CHECK: call void {{.*}}func9{{.*}}(%struct.S9* inreg sret(%struct.S9) align 4 {{.*}}, i64 {{.*}})
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struct S9 {
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S9& operator=(const S9&);
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int x;
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};
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S9 func9(S9 x);
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S9 f9() {
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S9 x;
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S9 y = x;
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x = y;
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return func9(x);
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}
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// Pass and return an object with a base class (passed directly, returned
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// indirectly).
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// CHECK: define dso_local void {{.*}}f10{{.*}}(%struct.S10* inreg noalias sret(%struct.S10) align 4 {{.*}})
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// CHECK: call void {{.*}}func10{{.*}}(%struct.S10* inreg sret(%struct.S10) align 4 {{.*}}, [2 x i64] {{.*}})
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struct S10 : public S1 {
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int x;
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};
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S10 func10(S10 x);
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S10 f10() {
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S10 x;
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return func10(x);
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}
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// Pass and return a non aggregate object exceeding > 128 bits (passed
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// indirectly, returned indirectly)
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// CHECK: define dso_local void {{.*}}f11{{.*}}(%struct.S11* inreg noalias sret(%struct.S11) align 8 {{.*}})
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// CHECK: call void {{.*}}func11{{.*}}(%struct.S11* inreg sret(%struct.S11) align 8 {{.*}}, %struct.S11* {{.*}})
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struct S11 {
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virtual void f();
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int a[5];
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};
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S11 func11(S11 x);
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S11 f11() {
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S11 x;
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return func11(x);
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}
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