292 lines
8.7 KiB
C++
292 lines
8.7 KiB
C++
// RUN: %clang_cc1 %s -emit-llvm -o - -triple=x86_64-unknown-unknown | FileCheck -check-prefix CODE-LP64 %s
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// RUN: %clang_cc1 %s -emit-llvm -o - -triple=i386-unknown-unknown | FileCheck -check-prefix CODE-LP32 %s
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// RUN: %clang_cc1 %s -emit-llvm -o - -triple=x86_64-unknown-unknown | FileCheck -check-prefix GLOBAL-LP64 %s
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// RUN: %clang_cc1 %s -emit-llvm -o - -triple=i386-unknown-unknown | FileCheck -check-prefix GLOBAL-LP32 %s
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// RUN: %clang_cc1 %s -emit-llvm -o - -triple=armv7-unknown-unknown | FileCheck -check-prefix GLOBAL-ARM %s
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// PNaCl uses the same representation of method pointers as ARM.
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// RUN: %clang_cc1 %s -emit-llvm -o - -triple=le32-unknown-nacl | FileCheck -check-prefix GLOBAL-ARM %s
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struct A { int a; void f(); virtual void vf1(); virtual void vf2(); };
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struct B { int b; virtual void g(); };
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struct C : B, A { };
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void (A::*pa)();
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void (A::*volatile vpa)();
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void (B::*pb)();
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void (C::*pc)();
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// GLOBAL-LP64: @pa2 = global { i64, i64 } { i64 ptrtoint (void (%struct.A*)* @_ZN1A1fEv to i64), i64 0 }, align 8
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void (A::*pa2)() = &A::f;
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// GLOBAL-LP64: @pa3 = global { i64, i64 } { i64 1, i64 0 }, align 8
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// GLOBAL-LP32: @pa3 = global { i32, i32 } { i32 1, i32 0 }, align 4
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void (A::*pa3)() = &A::vf1;
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// GLOBAL-LP64: @pa4 = global { i64, i64 } { i64 9, i64 0 }, align 8
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// GLOBAL-LP32: @pa4 = global { i32, i32 } { i32 5, i32 0 }, align 4
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void (A::*pa4)() = &A::vf2;
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// GLOBAL-LP64: @pc2 = global { i64, i64 } { i64 ptrtoint (void (%struct.A*)* @_ZN1A1fEv to i64), i64 16 }, align 8
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void (C::*pc2)() = &C::f;
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// GLOBAL-LP64: @pc3 = global { i64, i64 } { i64 1, i64 0 }, align 8
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void (A::*pc3)() = &A::vf1;
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void f() {
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// CODE-LP64: store { i64, i64 } zeroinitializer, { i64, i64 }* @pa
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pa = 0;
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// Is this okay? What are LLVM's volatile semantics for structs?
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// CODE-LP64: store volatile { i64, i64 } zeroinitializer, { i64, i64 }* @vpa
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vpa = 0;
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// CODE-LP64: [[TMP:%.*]] = load { i64, i64 }* @pa, align 8
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// CODE-LP64: [[TMPADJ:%.*]] = extractvalue { i64, i64 } [[TMP]], 1
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// CODE-LP64: [[ADJ:%.*]] = add nsw i64 [[TMPADJ]], 16
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// CODE-LP64: [[RES:%.*]] = insertvalue { i64, i64 } [[TMP]], i64 [[ADJ]], 1
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// CODE-LP64: store { i64, i64 } [[RES]], { i64, i64 }* @pc, align 8
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pc = pa;
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// CODE-LP64: [[TMP:%.*]] = load { i64, i64 }* @pc, align 8
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// CODE-LP64: [[TMPADJ:%.*]] = extractvalue { i64, i64 } [[TMP]], 1
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// CODE-LP64: [[ADJ:%.*]] = sub nsw i64 [[TMPADJ]], 16
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// CODE-LP64: [[RES:%.*]] = insertvalue { i64, i64 } [[TMP]], i64 [[ADJ]], 1
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// CODE-LP64: store { i64, i64 } [[RES]], { i64, i64 }* @pa, align 8
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pa = static_cast<void (A::*)()>(pc);
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}
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void f2() {
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// CODE-LP64: store { i64, i64 } { i64 ptrtoint (void (%struct.A*)* @_ZN1A1fEv to i64), i64 0 }
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void (A::*pa2)() = &A::f;
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// CODE-LP64: store { i64, i64 } { i64 1, i64 0 }
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// CODE-LP32: store { i32, i32 } { i32 1, i32 0 }
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void (A::*pa3)() = &A::vf1;
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// CODE-LP64: store { i64, i64 } { i64 9, i64 0 }
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// CODE-LP32: store { i32, i32 } { i32 5, i32 0 }
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void (A::*pa4)() = &A::vf2;
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}
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void f3(A *a, A &ar) {
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(a->*pa)();
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(ar.*pa)();
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}
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bool f4() {
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return pa;
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}
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// PR5177
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namespace PR5177 {
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struct A {
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bool foo(int*) const;
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} a;
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struct B1 {
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bool (A::*pmf)(int*) const;
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const A* pa;
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B1() : pmf(&A::foo), pa(&a) {}
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bool operator()() const { return (pa->*pmf)(new int); }
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};
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void bar(B1 b2) { while (b2()) ; }
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}
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// PR5138
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namespace PR5138 {
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struct foo {
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virtual void bar(foo *);
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};
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extern "C" {
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void baz(foo *);
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}
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void (foo::*ptr1)(void *) = (void (foo::*)(void *))&foo::bar;
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void (*ptr2)(void *) = (void (*)(void *))&baz;
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void (foo::*ptr3)(void) = (void (foo::*)(void))&foo::bar;
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}
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// PR5593
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namespace PR5593 {
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struct A { };
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bool f(void (A::*f)()) {
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return f && f;
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}
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}
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namespace PR5718 {
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struct A { };
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bool f(void (A::*f)(), void (A::*g)()) {
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return f == g;
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}
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}
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namespace BoolMemberPointer {
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struct A { };
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bool f(void (A::*f)()) {
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return !f;
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}
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bool g(void (A::*f)()) {
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if (!!f)
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return true;
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return false;
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}
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}
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// PR5940
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namespace PR5940 {
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class foo {
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public:
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virtual void baz(void);
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};
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void foo::baz(void) {
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void (foo::*ptr)(void) = &foo::baz;
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}
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}
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namespace MemberPointerImpCast {
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struct A {
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int x;
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};
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struct B : public A {
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};
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void f(B* obj, void (A::*method)()) {
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(obj->*method)();
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}
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}
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// PR6258
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namespace PR6258 {
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struct A {
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void f(bool);
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};
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void (A::*pf)(bool) = &A::f;
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void f() {
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void (A::*pf)(bool) = &A::f;
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}
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}
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// PR7027
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namespace PR7027 {
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struct X { void test( ); };
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void testX() { &X::test; }
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}
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namespace test7 {
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struct A { void foo(); virtual void vfoo(); };
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struct B { void foo(); virtual void vfoo(); };
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struct C : A, B { void foo(); virtual void vfoo(); };
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// GLOBAL-ARM: @_ZN5test74ptr0E = global {{.*}} { i32 ptrtoint ({{.*}}* @_ZN5test71A3fooEv to i32), i32 0 }
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// GLOBAL-ARM: @_ZN5test74ptr1E = global {{.*}} { i32 ptrtoint ({{.*}}* @_ZN5test71B3fooEv to i32), i32 8 }
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// GLOBAL-ARM: @_ZN5test74ptr2E = global {{.*}} { i32 ptrtoint ({{.*}}* @_ZN5test71C3fooEv to i32), i32 0 }
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// GLOBAL-ARM: @_ZN5test74ptr3E = global {{.*}} { i32 0, i32 1 }
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// GLOBAL-ARM: @_ZN5test74ptr4E = global {{.*}} { i32 0, i32 9 }
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// GLOBAL-ARM: @_ZN5test74ptr5E = global {{.*}} { i32 0, i32 1 }
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void (C::*ptr0)() = &A::foo;
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void (C::*ptr1)() = &B::foo;
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void (C::*ptr2)() = &C::foo;
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void (C::*ptr3)() = &A::vfoo;
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void (C::*ptr4)() = &B::vfoo;
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void (C::*ptr5)() = &C::vfoo;
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}
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namespace test8 {
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struct X { };
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typedef int (X::*pmf)(int);
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// CHECK: {{define.*_ZN5test81fEv}}
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pmf f() {
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// CHECK: {{ret.*zeroinitializer}}
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return pmf();
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}
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}
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namespace test9 {
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struct A {
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void foo();
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};
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struct B : A {
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void foo();
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};
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typedef void (A::*fooptr)();
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struct S {
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fooptr p;
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};
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// CODE-LP64-LABEL: define void @_ZN5test94testEv(
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// CODE-LP64: alloca i32
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// CODE-LP64-NEXT: ret void
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void test() {
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int x;
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static S array[] = { (fooptr) &B::foo };
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}
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}
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// rdar://problem/10815683 - Verify that we can emit reinterprets of
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// member pointers as constant initializers. For added trickiness,
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// we also add some non-trivial adjustments.
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namespace test10 {
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struct A {
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int nonEmpty;
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void foo();
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};
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struct B : public A {
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virtual void requireNonZeroAdjustment();
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};
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struct C {
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int nonEmpty;
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};
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struct D : public C {
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virtual void requireNonZeroAdjustment();
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};
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// It's not that the offsets are doubled on ARM, it's that they're left-shifted by 1.
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// GLOBAL-LP64: @_ZN6test101aE = global { i64, i64 } { i64 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i64), i64 0 }, align 8
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// GLOBAL-LP32: @_ZN6test101aE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 0 }, align 4
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// GLOBAL-ARM: @_ZN6test101aE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 0 }, align 4
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void (A::*a)() = &A::foo;
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// GLOBAL-LP64: @_ZN6test101bE = global { i64, i64 } { i64 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i64), i64 8 }, align 8
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// GLOBAL-LP32: @_ZN6test101bE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 4 }, align 4
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// GLOBAL-ARM: @_ZN6test101bE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 8 }, align 4
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void (B::*b)() = (void (B::*)()) &A::foo;
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// GLOBAL-LP64: @_ZN6test101cE = global { i64, i64 } { i64 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i64), i64 8 }, align 8
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// GLOBAL-LP32: @_ZN6test101cE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 4 }, align 4
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// GLOBAL-ARM: @_ZN6test101cE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 8 }, align 4
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void (C::*c)() = (void (C::*)()) (void (B::*)()) &A::foo;
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// GLOBAL-LP64: @_ZN6test101dE = global { i64, i64 } { i64 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i64), i64 16 }, align 8
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// GLOBAL-LP32: @_ZN6test101dE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 8 }, align 4
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// GLOBAL-ARM: @_ZN6test101dE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 16 }, align 4
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void (D::*d)() = (void (C::*)()) (void (B::*)()) &A::foo;
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}
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namespace test11 {
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struct A { virtual void a(); };
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struct B : A {};
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struct C : B { virtual void a(); };
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void (C::*x)() = &C::a;
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// GLOBAL-LP64: @_ZN6test111xE = global { i64, i64 } { i64 1, i64 0 }
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// GLOBAL-LP32: @_ZN6test111xE = global { i32, i32 } { i32 1, i32 0 }
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// GLOBAL-ARM: @_ZN6test111xE = global { i32, i32 } { i32 0, i32 1 }
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}
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