93786da2cb
Much to my surprise, '-disable-llvm-optzns' which I thought was the magical flag I wanted to get at the raw LLVM IR coming out of Clang deosn't do that. It still runs some passes over the IR. I don't want that, I really want the *raw* IR coming out of Clang and I strongly suspect everyone else using it is in the same camp. There is actually a flag that does what I want that I didn't know about called '-disable-llvm-passes'. I suspect many others don't know about it either. It both does what I want and is much simpler. This removes the confusing version and makes that spelling of the flag an alias for '-disable-llvm-passes'. I've also moved everything in Clang to use the 'passes' spelling as it seems both more accurate (*all* LLVM passes are disabled, not just optimizations) and much easier to remember and spell correctly. This is part of simplifying how Clang drives LLVM to make it cleaner to wire up to the new pass manager. Differential Revision: https://reviews.llvm.org/D28047 llvm-svn: 290392
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:.*]], ![[SEC:.*]]{{.*}}}
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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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