forked from OSchip/llvm-project
220 lines
7.0 KiB
C++
220 lines
7.0 KiB
C++
// RUN: %clang_cc1 %s -I%S -triple=x86_64-apple-darwin10 -fstrict-vtable-pointers -disable-llvm-passes -O2 -emit-llvm -o %t.ll
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// RUN: FileCheck --check-prefix=CHECK-CTORS %s < %t.ll
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// RUN: FileCheck --check-prefix=CHECK-NEW %s < %t.ll
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// RUN: FileCheck --check-prefix=CHECK-DTORS %s < %t.ll
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// RUN: FileCheck --check-prefix=CHECK-LINK-REQ %s < %t.ll
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typedef __typeof__(sizeof(0)) size_t;
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void *operator new(size_t, void*) throw();
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struct NotTrivialDtor {
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~NotTrivialDtor();
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};
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struct DynamicBase1 {
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NotTrivialDtor obj;
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virtual void foo();
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};
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struct DynamicDerived : DynamicBase1 {
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void foo();
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};
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struct DynamicBase2 {
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virtual void bar();
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~DynamicBase2() {
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bar();
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}
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};
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struct DynamicDerivedMultiple : DynamicBase1, DynamicBase2 {
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virtual void foo();
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virtual void bar();
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};
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struct StaticBase {
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NotTrivialDtor obj;
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void bar();
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};
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struct DynamicFromStatic : StaticBase {
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virtual void bar();
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};
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struct DynamicFromVirtualStatic1 : virtual StaticBase {
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};
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struct DynamicFromVirtualStatic2 : virtual StaticBase {
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};
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struct DynamicFrom2Virtuals :
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DynamicFromVirtualStatic1,
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DynamicFromVirtualStatic2 {
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};
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// CHECK-NEW-LABEL: define void @_Z12LocalObjectsv()
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// CHECK-NEW-NOT: @llvm.invariant.group.barrier(
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// CHECK-NEW-LABEL: {{^}}}
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void LocalObjects() {
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DynamicBase1 DB;
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DB.foo();
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DynamicDerived DD;
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DD.foo();
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DynamicBase2 DB2;
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DB2.bar();
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StaticBase SB;
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SB.bar();
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DynamicDerivedMultiple DDM;
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DDM.foo();
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DDM.bar();
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DynamicFromStatic DFS;
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DFS.bar();
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DynamicFromVirtualStatic1 DFVS1;
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DFVS1.bar();
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DynamicFrom2Virtuals DF2V;
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DF2V.bar();
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}
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struct DynamicFromVirtualStatic1;
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// CHECK-CTORS-LABEL: define linkonce_odr void @_ZN25DynamicFromVirtualStatic1C1Ev
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// CHECK-CTORS-NOT: @llvm.invariant.group.barrier(
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// CHECK-CTORS-LABEL: {{^}}}
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struct DynamicFrom2Virtuals;
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// CHECK-CTORS-LABEL: define linkonce_odr void @_ZN20DynamicFrom2VirtualsC1Ev
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// CHECK-CTORS: call i8* @llvm.invariant.group.barrier(
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// CHECK-CTORS-LABEL: {{^}}}
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// CHECK-NEW-LABEL: define void @_Z9Pointers1v()
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// CHECK-NEW-NOT: @llvm.invariant.group.barrier(
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// CHECK-NEW-LABEL: call void @_ZN12DynamicBase1C1Ev(
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// CHECK-NEW: %[[THIS3:.*]] = call i8* @llvm.invariant.group.barrier(i8* %[[THIS2:.*]])
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// CHECK-NEW: %[[THIS4:.*]] = bitcast i8* %[[THIS3]] to %[[DynamicDerived:.*]]*
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// CHECK-NEW: call void @_ZN14DynamicDerivedC1Ev(%[[DynamicDerived:.*]]* %[[THIS4]])
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// CHECK-NEW-LABEL: {{^}}}
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void Pointers1() {
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DynamicBase1 *DB = new DynamicBase1;
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DB->foo();
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DynamicDerived *DD = new (DB) DynamicDerived;
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DD->foo();
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DD->~DynamicDerived();
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}
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// CHECK-NEW-LABEL: define void @_Z14HackingObjectsv()
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// CHECK-NEW: call void @_ZN12DynamicBase1C1Ev
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// CHECK-NEW: call i8* @llvm.invariant.group.barrier(
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// CHECK-NEW: call void @_ZN14DynamicDerivedC1Ev(
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// CHECK-NEW: call i8* @llvm.invariant.group.barrier(
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// CHECK-NEW: call void @_ZN12DynamicBase1C1Ev(
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// CHECK-NEW-LABEL: {{^}}}
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void HackingObjects() {
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DynamicBase1 DB;
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DB.foo();
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DynamicDerived *DB2 = new (&DB) DynamicDerived;
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// Using DB now is prohibited.
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DB2->foo();
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DB2->~DynamicDerived();
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// We have to get back to the previous type to avoid calling wrong destructor
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new (&DB) DynamicBase1;
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DB.foo();
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}
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/*** Testing Constructors ***/
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struct DynamicBase1;
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// CHECK-CTORS-LABEL: define linkonce_odr void @_ZN12DynamicBase1C2Ev(
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// CHECK-CTORS-NOT: call i8* @llvm.invariant.group.barrier(
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// CHECK-CTORS-LABEL: {{^}}}
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struct DynamicDerived;
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// CHECK-CTORS-LABEL: define linkonce_odr void @_ZN14DynamicDerivedC2Ev(
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// CHECK-CTORS: %[[THIS0:.*]] = load %[[DynamicDerived:.*]]*, %[[DynamicDerived]]** {{.*}}
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// CHECK-CTORS: %[[THIS1:.*]] = bitcast %[[DynamicDerived:.*]]* %[[THIS0]] to i8*
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// CHECK-CTORS: %[[THIS2:.*]] = call i8* @llvm.invariant.group.barrier(i8* %[[THIS1:.*]])
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// CHECK-CTORS: %[[THIS3:.*]] = bitcast i8* %[[THIS2]] to %[[DynamicDerived]]*
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// CHECK-CTORS: %[[THIS4:.*]] = bitcast %[[DynamicDerived]]* %[[THIS3]] to %[[DynamicBase:.*]]*
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// CHECK-CTORS: call void @_ZN12DynamicBase1C2Ev(%[[DynamicBase]]* %[[THIS4]])
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// CHECK-CTORS: %[[THIS5:.*]] = bitcast %struct.DynamicDerived* %[[THIS0]] to i32 (...)***
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// CHECK-CTORS: store {{.*}} %[[THIS5]]
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// CHECK-CTORS-LABEL: {{^}}}
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struct DynamicDerivedMultiple;
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// CHECK-CTORS-LABEL: define linkonce_odr void @_ZN22DynamicDerivedMultipleC2Ev(
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// CHECK-CTORS: %[[THIS0:.*]] = load %[[CLASS:.*]]*, %[[CLASS]]** {{.*}}
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// CHECK-CTORS: %[[THIS1:.*]] = bitcast %[[CLASS:.*]]* %[[THIS0]] to i8*
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// CHECK-CTORS: %[[THIS2:.*]] = call i8* @llvm.invariant.group.barrier(i8* %[[THIS1]])
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// CHECK-CTORS: %[[THIS3:.*]] = bitcast i8* %[[THIS2]] to %[[CLASS]]*
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// CHECK-CTORS: %[[THIS4:.*]] = bitcast %[[CLASS]]* %[[THIS3]] to %[[BASE_CLASS:.*]]*
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// CHECK-CTORS: call void @_ZN12DynamicBase1C2Ev(%[[BASE_CLASS]]* %[[THIS4]])
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// CHECK-CTORS: call i8* @llvm.invariant.group.barrier(
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// CHECK-CTORS: call void @_ZN12DynamicBase2C2Ev(
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// CHECK-CTORS-NOT: @llvm.invariant.group.barrier
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// CHECK-CTORS: %[[THIS10:.*]] = bitcast %struct.DynamicDerivedMultiple* %[[THIS0]] to i32 (...)***
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// CHECK-CTORS: store {{.*}} @_ZTV22DynamicDerivedMultiple, i32 0, inrange i32 0, i32 2) {{.*}} %[[THIS10]]
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// CHECK-CTORS: %[[THIS11:.*]] = bitcast %struct.DynamicDerivedMultiple* %[[THIS0]] to i8*
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// CHECK-CTORS: %[[THIS_ADD:.*]] = getelementptr inbounds i8, i8* %[[THIS11]], i64 16
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// CHECK-CTORS: %[[THIS12:.*]] = bitcast i8* %[[THIS_ADD]] to i32 (...)***
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// CHECK-CTORS: store {{.*}} @_ZTV22DynamicDerivedMultiple, i32 0, inrange i32 1, i32 2) {{.*}} %[[THIS12]]
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// CHECK-CTORS-LABEL: {{^}}}
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struct DynamicFromStatic;
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// CHECK-CTORS-LABEL: define linkonce_odr void @_ZN17DynamicFromStaticC2Ev(
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// CHECK-CTORS-NOT: @llvm.invariant.group.barrier(
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// CHECK-CTORS-LABEL: {{^}}}
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/** DTORS **/
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// CHECK-DTORS-LABEL: define linkonce_odr void @_ZN10StaticBaseD2Ev(
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// CHECK-DTORS-NOT: call i8* @llvm.invariant.group.barrier(
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// CHECK-DTORS-LABEL: {{^}}}
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// CHECK-DTORS-LABEL: define linkonce_odr void @_ZN25DynamicFromVirtualStatic2D2Ev(
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// CHECK-DTORS-NOT: invariant.barrier
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// CHECK-DTORS-LABEL: {{^}}}
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// CHECK-DTORS-LABEL: define linkonce_odr void @_ZN17DynamicFromStaticD2Ev
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// CHECK-DTORS-NOT: call i8* @llvm.invariant.group.barrier(
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// CHECK-DTORS-LABEL: {{^}}}
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// CHECK-DTORS-LABEL: define linkonce_odr void @_ZN22DynamicDerivedMultipleD2Ev(
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// CHECK-DTORS-LABEL: define linkonce_odr void @_ZN12DynamicBase2D2Ev(
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// CHECK-DTORS: call i8* @llvm.invariant.group.barrier(
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// CHECK-DTORS-LABEL: {{^}}}
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// CHECK-DTORS-LABEL: define linkonce_odr void @_ZN12DynamicBase1D2Ev
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// CHECK-DTORS: call i8* @llvm.invariant.group.barrier(
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// CHECK-DTORS-LABEL: {{^}}}
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// CHECK-DTORS-LABEL: define linkonce_odr void @_ZN14DynamicDerivedD2Ev
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// CHECK-DTORS-NOT: call i8* @llvm.invariant.group.barrier(
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// CHECK-DTORS-LABEL: {{^}}}
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// CHECK-LINK-REQ: !llvm.module.flags = !{![[FIRST:[0-9]+]], ![[SEC:[0-9]+]]{{.*}}}
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// CHECK-LINK-REQ: ![[FIRST]] = !{i32 1, !"StrictVTablePointers", i32 1}
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// CHECK-LINK-REQ: ![[SEC]] = !{i32 3, !"StrictVTablePointersRequirement", ![[META:.*]]}
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// CHECK-LINK-REQ: ![[META]] = !{!"StrictVTablePointers", i32 1}
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