head 1.1; branch 1.1.1; access; symbols netbsd-11-0-RC5:1.1.1.4 netbsd-11-0-RC4:1.1.1.4 netbsd-11-0-RC3:1.1.1.4 netbsd-11-0-RC2:1.1.1.4 netbsd-11-0-RC1:1.1.1.4 perseant-exfatfs-base-20250801:1.1.1.4 netbsd-11:1.1.1.4.0.10 netbsd-11-base:1.1.1.4 netbsd-10-1-RELEASE:1.1.1.4 perseant-exfatfs-base-20240630:1.1.1.4 perseant-exfatfs:1.1.1.4.0.8 perseant-exfatfs-base:1.1.1.4 netbsd-8-3-RELEASE:1.1.1.3 netbsd-9-4-RELEASE:1.1.1.3 netbsd-10-0-RELEASE:1.1.1.4 netbsd-10-0-RC6:1.1.1.4 netbsd-10-0-RC5:1.1.1.4 netbsd-10-0-RC4:1.1.1.4 netbsd-10-0-RC3:1.1.1.4 netbsd-10-0-RC2:1.1.1.4 netbsd-10-0-RC1:1.1.1.4 netbsd-10:1.1.1.4.0.6 netbsd-10-base:1.1.1.4 netbsd-9-3-RELEASE:1.1.1.3 cjep_sun2x:1.1.1.4.0.4 cjep_sun2x-base:1.1.1.4 cjep_staticlib_x-base1:1.1.1.4 netbsd-9-2-RELEASE:1.1.1.3 cjep_staticlib_x:1.1.1.4.0.2 cjep_staticlib_x-base:1.1.1.4 netbsd-9-1-RELEASE:1.1.1.3 phil-wifi-20200421:1.1.1.4 phil-wifi-20200411:1.1.1.4 phil-wifi-20200406:1.1.1.4 netbsd-8-2-RELEASE:1.1.1.3 netbsd-9-0-RELEASE:1.1.1.3 netbsd-9-0-RC2:1.1.1.3 netbsd-9-0-RC1:1.1.1.3 netbsd-9:1.1.1.3.0.18 netbsd-9-base:1.1.1.3 phil-wifi-20190609:1.1.1.3 netbsd-8-1-RELEASE:1.1.1.3 netbsd-8-1-RC1:1.1.1.3 pgoyette-compat-merge-20190127:1.1.1.3 pgoyette-compat-20190127:1.1.1.3 pgoyette-compat-20190118:1.1.1.3 pgoyette-compat-1226:1.1.1.3 pgoyette-compat-1126:1.1.1.3 pgoyette-compat-1020:1.1.1.3 pgoyette-compat-0930:1.1.1.3 pgoyette-compat-0906:1.1.1.3 netbsd-7-2-RELEASE:1.1.1.2 pgoyette-compat-0728:1.1.1.3 clang-337282:1.1.1.3 netbsd-8-0-RELEASE:1.1.1.3 phil-wifi:1.1.1.3.0.16 phil-wifi-base:1.1.1.3 pgoyette-compat-0625:1.1.1.3 netbsd-8-0-RC2:1.1.1.3 pgoyette-compat-0521:1.1.1.3 pgoyette-compat-0502:1.1.1.3 pgoyette-compat-0422:1.1.1.3 netbsd-8-0-RC1:1.1.1.3 pgoyette-compat-0415:1.1.1.3 pgoyette-compat-0407:1.1.1.3 pgoyette-compat-0330:1.1.1.3 pgoyette-compat-0322:1.1.1.3 pgoyette-compat-0315:1.1.1.3 netbsd-7-1-2-RELEASE:1.1.1.2 pgoyette-compat:1.1.1.3.0.14 pgoyette-compat-base:1.1.1.3 netbsd-7-1-1-RELEASE:1.1.1.2 clang-319952:1.1.1.3 matt-nb8-mediatek:1.1.1.3.0.12 matt-nb8-mediatek-base:1.1.1.3 clang-309604:1.1.1.3 perseant-stdc-iso10646:1.1.1.3.0.10 perseant-stdc-iso10646-base:1.1.1.3 netbsd-8:1.1.1.3.0.8 netbsd-8-base:1.1.1.3 prg-localcount2-base3:1.1.1.3 prg-localcount2-base2:1.1.1.3 prg-localcount2-base1:1.1.1.3 prg-localcount2:1.1.1.3.0.6 prg-localcount2-base:1.1.1.3 pgoyette-localcount-20170426:1.1.1.3 bouyer-socketcan-base1:1.1.1.3 pgoyette-localcount-20170320:1.1.1.3 netbsd-7-1:1.1.1.2.0.10 netbsd-7-1-RELEASE:1.1.1.2 netbsd-7-1-RC2:1.1.1.2 clang-294123:1.1.1.3 netbsd-7-nhusb-base-20170116:1.1.1.2 bouyer-socketcan:1.1.1.3.0.4 bouyer-socketcan-base:1.1.1.3 clang-291444:1.1.1.3 pgoyette-localcount-20170107:1.1.1.3 netbsd-7-1-RC1:1.1.1.2 pgoyette-localcount-20161104:1.1.1.3 netbsd-7-0-2-RELEASE:1.1.1.2 localcount-20160914:1.1.1.3 netbsd-7-nhusb:1.1.1.2.0.8 netbsd-7-nhusb-base:1.1.1.2 clang-280599:1.1.1.3 pgoyette-localcount-20160806:1.1.1.3 pgoyette-localcount-20160726:1.1.1.3 pgoyette-localcount:1.1.1.3.0.2 pgoyette-localcount-base:1.1.1.3 netbsd-7-0-1-RELEASE:1.1.1.2 clang-261930:1.1.1.3 netbsd-7-0:1.1.1.2.0.6 netbsd-7-0-RELEASE:1.1.1.2 netbsd-7-0-RC3:1.1.1.2 netbsd-7-0-RC2:1.1.1.2 netbsd-7-0-RC1:1.1.1.2 clang-237755:1.1.1.2 clang-232565:1.1.1.2 clang-227398:1.1.1.2 tls-maxphys-base:1.1.1.2 tls-maxphys:1.1.1.2.0.4 netbsd-7:1.1.1.2.0.2 netbsd-7-base:1.1.1.2 clang-215315:1.1.1.2 clang-209886:1.1.1.2 yamt-pagecache:1.1.1.1.0.4 yamt-pagecache-base9:1.1.1.1 tls-earlyentropy:1.1.1.1.0.2 tls-earlyentropy-base:1.1.1.2 riastradh-xf86-video-intel-2-7-1-pre-2-21-15:1.1.1.1 riastradh-drm2-base3:1.1.1.1 clang-202566:1.1.1.1 clang-201163:1.1.1.1 clang-199312:1.1.1.1 clang-198450:1.1.1.1 clang-196603:1.1.1.1 clang-195771:1.1.1.1 LLVM:1.1.1; locks; strict; comment @// @; 1.1 date 2013.11.28.14.14.58; author joerg; state Exp; branches 1.1.1.1; next ; commitid ow8OybrawrB1f3fx; 1.1.1.1 date 2013.11.28.14.14.58; author joerg; state Exp; branches 1.1.1.1.2.1 1.1.1.1.4.1; next 1.1.1.2; commitid ow8OybrawrB1f3fx; 1.1.1.2 date 2014.05.30.18.14.47; author joerg; state Exp; branches 1.1.1.2.4.1; next 1.1.1.3; commitid 8q0kdlBlCn09GACx; 1.1.1.3 date 2016.02.27.22.10.23; author joerg; state Exp; branches 1.1.1.3.16.1; next 1.1.1.4; commitid tIimz3oDlh1NpBWy; 1.1.1.4 date 2019.11.13.22.20.15; author joerg; state dead; branches; next ; commitid QD8YATxuNG34YJKB; 1.1.1.1.2.1 date 2014.08.10.07.08.14; author tls; state Exp; branches; next ; commitid t01A1TLTYxkpGMLx; 1.1.1.1.4.1 date 2013.11.28.14.14.58; author yamt; state dead; branches; next 1.1.1.1.4.2; commitid WSrDtL5nYAUyiyBx; 1.1.1.1.4.2 date 2014.05.22.16.18.57; author yamt; state Exp; branches; next ; commitid WSrDtL5nYAUyiyBx; 1.1.1.2.4.1 date 2014.05.30.18.14.47; author tls; state dead; branches; next 1.1.1.2.4.2; commitid jTnpym9Qu0o4R1Nx; 1.1.1.2.4.2 date 2014.08.19.23.47.58; author tls; state Exp; branches; next ; commitid jTnpym9Qu0o4R1Nx; 1.1.1.3.16.1 date 2020.04.13.07.47.29; author martin; state dead; branches; next ; commitid X01YhRUPVUDaec4C; desc @@ 1.1 log @Initial revision @ text @// RUN: not %clang_cc1 -triple x86_64-apple-darwin -verify -emit-llvm -o - %s | FileCheck %s void t1() { // CHECK-LABEL: define void @@_Z2t1v // CHECK: [[REFLOAD:%.*]] = load i32** @@a, align 8 // CHECK: load i32* [[REFLOAD]], align 4 extern int& a; int b = a; } void t2(int& a) { // CHECK-LABEL: define void @@_Z2t2Ri // CHECK: [[REFLOAD2:%.*]] = load i32** {{.*}}, align 8 // CHECK: load i32* [[REFLOAD2]], align 4 int b = a; } int g; int& gr = g; int& grr = gr; void t3() { int b = gr; } // Test reference binding. struct C { int a; }; void f(const bool&); void f(const int&); void f(const _Complex int&); void f(const C&); C aggregate_return(); bool& bool_reference_return(); int& int_reference_return(); _Complex int& complex_int_reference_return(); C& aggregate_reference_return(); void test_bool() { bool a = true; f(a); f(true); bool_reference_return() = true; a = bool_reference_return(); struct { const bool& b; } b = { true }; } void test_scalar() { int a = 10; f(a); struct { int bitfield : 3; } s = { 3 }; f(s.bitfield); f(10); __attribute((vector_size(16))) typedef int vec4; f((vec4){1,2,3,4}[0]); int_reference_return() = 10; a = int_reference_return(); struct { const int& a; } agg = { 10 }; } void test_complex() { _Complex int a = 10i; f(a); f(10i); complex_int_reference_return() = 10i; a = complex_int_reference_return(); struct { const _Complex int &a; } agg = { 10i }; } void test_aggregate() { C c; f(c); f(aggregate_return()); aggregate_reference_return().a = 10; c = aggregate_reference_return(); struct { const C& a; } agg = { C() }; } int& reference_return() { return g; } int reference_decl() { int& a = g; const int& b = 1; return a+b; } struct A { int& b(); }; void f(A* a) { int b = a->b(); } // PR5122 void *foo = 0; void * const & kFoo = foo; struct D : C { D(); ~D(); }; void h() { // CHECK: call void @@_ZN1DD1Ev const C& c = D(); } namespace T { struct A { A(); ~A(); }; struct B { B(); ~B(); A f(); }; void f() { // CHECK: call void @@_ZN1T1BC1Ev // CHECK: call void @@_ZN1T1B1fEv // CHECK: call void @@_ZN1T1BD1Ev const A& a = B().f(); // CHECK: call void @@_ZN1T1fEv f(); // CHECK: call void @@_ZN1T1AD1Ev } } // PR5227. namespace PR5227 { void f(int &a) { (a = 10) = 20; } } // PR5590 struct s0; struct s1 { struct s0 &s0; }; void f0(s1 a) { s1 b = a; } // PR6024 // CHECK: @@_Z2f2v() // CHECK: alloca i32, // CHECK-NEXT: store // CHECK-NEXT: ret const int &f2() { return 0; } // Don't constant fold const reference parameters with default arguments to // their default arguments. namespace N1 { const int foo = 1; // CHECK: @@_ZN2N14test void test(const int& arg = foo) { // Ensure this array is on the stack where we can set values instead of // being a global constant. // CHECK: %args_array = alloca const int* const args_array[] = { &arg }; } } // Bind to subobjects while extending the life of the complete object. namespace N2 { class X { public: X(const X&); X &operator=(const X&); ~X(); }; struct P { X first; }; P getP(); // CHECK-LABEL: define void @@_ZN2N21fEi // CHECK: call void @@_ZN2N24getPEv // CHECK: getelementptr inbounds // CHECK: store i32 17 // CHECK: call void @@_ZN2N21PD1Ev void f(int i) { const X& xr = getP().first; i = 17; } struct SpaceWaster { int i, j; }; struct ReallyHasX { X x; }; struct HasX : ReallyHasX { }; struct HasXContainer { HasX has; }; struct Y : SpaceWaster, HasXContainer { }; struct Z : SpaceWaster, Y { }; Z getZ(); // CHECK-LABEL: define void @@_ZN2N21gEi // CHECK: call void @@_ZN2N24getZEv // CHECK: {{getelementptr inbounds.*i32 0, i32 0}} // CHECK: {{getelementptr inbounds.*i32 0, i32 0}} // CHECK: store i32 19 // CHECK: call void @@_ZN2N21ZD1Ev // CHECK: ret void void g(int i) { const X &xr = getZ().has.x; i = 19; } } namespace N3 { // PR7326 struct A { explicit A(int); ~A(); }; // CHECK-LABEL: define internal void @@__cxx_global_var_init // CHECK: call void @@_ZN2N31AC1Ei(%"struct.N3::A"* @@_ZGRN2N35sA123E, i32 123) // CHECK: call i32 @@__cxa_atexit // CHECK: ret void const A &sA123 = A(123); } namespace N4 { struct A { A(); ~A(); }; void f() { // CHECK-LABEL: define void @@_ZN2N41fEv // CHECK: call void @@_ZN2N41AC1Ev(%"struct.N4::A"* @@_ZGRZN2N41fEvE2ar) // CHECK: call i32 @@__cxa_atexit // CHECK: ret void static const A& ar = A(); } } // PR9494 namespace N5 { struct AnyS { bool b; }; void f(const bool&); AnyS g(); void h() { // CHECK: call i8 @@_ZN2N51gEv() // CHECK: call void @@_ZN2N51fERKb(i8* f(g().b); } } // PR9565 namespace PR9565 { struct a { int a : 10, b : 10; }; // CHECK-LABEL: define void @@_ZN6PR95651fEv() void f() { // CHECK: call void @@llvm.memcpy a x = { 0, 0 }; // CHECK: [[WITH_SEVENTEEN:%[.a-zA-Z0-9]+]] = or i32 [[WITHOUT_SEVENTEEN:%[.a-zA-Z0-9]+]], 17 // CHECK: store i32 [[WITH_SEVENTEEN]], i32* [[XA:%[.a-zA-Z0-9]+]] x.a = 17; // CHECK-NEXT: bitcast // CHECK-NEXT: load // CHECK-NEXT: shl // CHECK-NEXT: ashr // CHECK-NEXT: store i32 // CHECK-NEXT: store i32* const int &y = x.a; // CHECK-NEXT: bitcast // CHECK-NEXT: load // CHECK-NEXT: and // CHECK-NEXT: or i32 {{.*}}, 19456 // CHECK-NEXT: store i32 x.b = 19; // CHECK-NEXT: ret void } } namespace N6 { extern struct x {char& x;}y; int a() { return y.x; } // CHECK-LABEL: define i32 @@_ZN2N61aEv // CHECK: [[REFLOAD3:%.*]] = load i8** getelementptr inbounds (%"struct.N6::x"* @@_ZN2N61yE, i32 0, i32 0), align 8 // CHECK: load i8* [[REFLOAD3]], align 1 } @ 1.1.1.1 log @Import Clang 3.4rc1 r195771. @ text @@ 1.1.1.1.2.1 log @Rebase. @ text @d244 1 a244 1 // CHECK: call void @@_ZN2N31AC1Ei(%"struct.N3::A"* @@_ZGRN2N35sA123E_, i32 123) d259 1 a259 1 // CHECK: call void @@_ZN2N41AC1Ev(%"struct.N4::A"* @@_ZGRZN2N41fEvE2ar_) @ 1.1.1.2 log @Import Clang 3.5svn r209886. @ text @d244 1 a244 1 // CHECK: call void @@_ZN2N31AC1Ei(%"struct.N3::A"* @@_ZGRN2N35sA123E_, i32 123) d259 1 a259 1 // CHECK: call void @@_ZN2N41AC1Ev(%"struct.N4::A"* @@_ZGRZN2N41fEvE2ar_) @ 1.1.1.3 log @Import Clang 3.8.0rc3 r261930. @ text @d4 2 a5 2 // CHECK: [[REFLOAD:%.*]] = load i32*, i32** @@a, align 8 // CHECK: load i32, i32* [[REFLOAD]], align 4 d12 2 a13 2 // CHECK: [[REFLOAD2:%.*]] = load i32*, i32** {{.*}}, align 8 // CHECK: load i32, i32* [[REFLOAD2]], align 4 d310 2 a311 2 // CHECK: [[REFLOAD3:%.*]] = load i8*, i8** getelementptr inbounds (%"struct.N6::x", %"struct.N6::x"* @@_ZN2N61yE, i32 0, i32 0), align 8 // CHECK: load i8, i8* [[REFLOAD3]], align 1 @ 1.1.1.3.16.1 log @Mostly merge changes from HEAD upto 20200411 @ text @@ 1.1.1.4 log @Mark old LLVM instance as dead. @ text @@ 1.1.1.2.4.1 log @file references.cpp was added on branch tls-maxphys on 2014-08-19 23:47:58 +0000 @ text @d1 312 @ 1.1.1.2.4.2 log @Rebase to HEAD as of a few days ago. @ text @a0 312 // RUN: not %clang_cc1 -triple x86_64-apple-darwin -verify -emit-llvm -o - %s | FileCheck %s void t1() { // CHECK-LABEL: define void @@_Z2t1v // CHECK: [[REFLOAD:%.*]] = load i32** @@a, align 8 // CHECK: load i32* [[REFLOAD]], align 4 extern int& a; int b = a; } void t2(int& a) { // CHECK-LABEL: define void @@_Z2t2Ri // CHECK: [[REFLOAD2:%.*]] = load i32** {{.*}}, align 8 // CHECK: load i32* [[REFLOAD2]], align 4 int b = a; } int g; int& gr = g; int& grr = gr; void t3() { int b = gr; } // Test reference binding. struct C { int a; }; void f(const bool&); void f(const int&); void f(const _Complex int&); void f(const C&); C aggregate_return(); bool& bool_reference_return(); int& int_reference_return(); _Complex int& complex_int_reference_return(); C& aggregate_reference_return(); void test_bool() { bool a = true; f(a); f(true); bool_reference_return() = true; a = bool_reference_return(); struct { const bool& b; } b = { true }; } void test_scalar() { int a = 10; f(a); struct { int bitfield : 3; } s = { 3 }; f(s.bitfield); f(10); __attribute((vector_size(16))) typedef int vec4; f((vec4){1,2,3,4}[0]); int_reference_return() = 10; a = int_reference_return(); struct { const int& a; } agg = { 10 }; } void test_complex() { _Complex int a = 10i; f(a); f(10i); complex_int_reference_return() = 10i; a = complex_int_reference_return(); struct { const _Complex int &a; } agg = { 10i }; } void test_aggregate() { C c; f(c); f(aggregate_return()); aggregate_reference_return().a = 10; c = aggregate_reference_return(); struct { const C& a; } agg = { C() }; } int& reference_return() { return g; } int reference_decl() { int& a = g; const int& b = 1; return a+b; } struct A { int& b(); }; void f(A* a) { int b = a->b(); } // PR5122 void *foo = 0; void * const & kFoo = foo; struct D : C { D(); ~D(); }; void h() { // CHECK: call void @@_ZN1DD1Ev const C& c = D(); } namespace T { struct A { A(); ~A(); }; struct B { B(); ~B(); A f(); }; void f() { // CHECK: call void @@_ZN1T1BC1Ev // CHECK: call void @@_ZN1T1B1fEv // CHECK: call void @@_ZN1T1BD1Ev const A& a = B().f(); // CHECK: call void @@_ZN1T1fEv f(); // CHECK: call void @@_ZN1T1AD1Ev } } // PR5227. namespace PR5227 { void f(int &a) { (a = 10) = 20; } } // PR5590 struct s0; struct s1 { struct s0 &s0; }; void f0(s1 a) { s1 b = a; } // PR6024 // CHECK: @@_Z2f2v() // CHECK: alloca i32, // CHECK-NEXT: store // CHECK-NEXT: ret const int &f2() { return 0; } // Don't constant fold const reference parameters with default arguments to // their default arguments. namespace N1 { const int foo = 1; // CHECK: @@_ZN2N14test void test(const int& arg = foo) { // Ensure this array is on the stack where we can set values instead of // being a global constant. // CHECK: %args_array = alloca const int* const args_array[] = { &arg }; } } // Bind to subobjects while extending the life of the complete object. namespace N2 { class X { public: X(const X&); X &operator=(const X&); ~X(); }; struct P { X first; }; P getP(); // CHECK-LABEL: define void @@_ZN2N21fEi // CHECK: call void @@_ZN2N24getPEv // CHECK: getelementptr inbounds // CHECK: store i32 17 // CHECK: call void @@_ZN2N21PD1Ev void f(int i) { const X& xr = getP().first; i = 17; } struct SpaceWaster { int i, j; }; struct ReallyHasX { X x; }; struct HasX : ReallyHasX { }; struct HasXContainer { HasX has; }; struct Y : SpaceWaster, HasXContainer { }; struct Z : SpaceWaster, Y { }; Z getZ(); // CHECK-LABEL: define void @@_ZN2N21gEi // CHECK: call void @@_ZN2N24getZEv // CHECK: {{getelementptr inbounds.*i32 0, i32 0}} // CHECK: {{getelementptr inbounds.*i32 0, i32 0}} // CHECK: store i32 19 // CHECK: call void @@_ZN2N21ZD1Ev // CHECK: ret void void g(int i) { const X &xr = getZ().has.x; i = 19; } } namespace N3 { // PR7326 struct A { explicit A(int); ~A(); }; // CHECK-LABEL: define internal void @@__cxx_global_var_init // CHECK: call void @@_ZN2N31AC1Ei(%"struct.N3::A"* @@_ZGRN2N35sA123E_, i32 123) // CHECK: call i32 @@__cxa_atexit // CHECK: ret void const A &sA123 = A(123); } namespace N4 { struct A { A(); ~A(); }; void f() { // CHECK-LABEL: define void @@_ZN2N41fEv // CHECK: call void @@_ZN2N41AC1Ev(%"struct.N4::A"* @@_ZGRZN2N41fEvE2ar_) // CHECK: call i32 @@__cxa_atexit // CHECK: ret void static const A& ar = A(); } } // PR9494 namespace N5 { struct AnyS { bool b; }; void f(const bool&); AnyS g(); void h() { // CHECK: call i8 @@_ZN2N51gEv() // CHECK: call void @@_ZN2N51fERKb(i8* f(g().b); } } // PR9565 namespace PR9565 { struct a { int a : 10, b : 10; }; // CHECK-LABEL: define void @@_ZN6PR95651fEv() void f() { // CHECK: call void @@llvm.memcpy a x = { 0, 0 }; // CHECK: [[WITH_SEVENTEEN:%[.a-zA-Z0-9]+]] = or i32 [[WITHOUT_SEVENTEEN:%[.a-zA-Z0-9]+]], 17 // CHECK: store i32 [[WITH_SEVENTEEN]], i32* [[XA:%[.a-zA-Z0-9]+]] x.a = 17; // CHECK-NEXT: bitcast // CHECK-NEXT: load // CHECK-NEXT: shl // CHECK-NEXT: ashr // CHECK-NEXT: store i32 // CHECK-NEXT: store i32* const int &y = x.a; // CHECK-NEXT: bitcast // CHECK-NEXT: load // CHECK-NEXT: and // CHECK-NEXT: or i32 {{.*}}, 19456 // CHECK-NEXT: store i32 x.b = 19; // CHECK-NEXT: ret void } } namespace N6 { extern struct x {char& x;}y; int a() { return y.x; } // CHECK-LABEL: define i32 @@_ZN2N61aEv // CHECK: [[REFLOAD3:%.*]] = load i8** getelementptr inbounds (%"struct.N6::x"* @@_ZN2N61yE, i32 0, i32 0), align 8 // CHECK: load i8* [[REFLOAD3]], align 1 } @ 1.1.1.1.4.1 log @file references.cpp was added on branch yamt-pagecache on 2014-05-22 16:18:57 +0000 @ text @d1 312 @ 1.1.1.1.4.2 log @sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments") @ text @a0 312 // RUN: not %clang_cc1 -triple x86_64-apple-darwin -verify -emit-llvm -o - %s | FileCheck %s void t1() { // CHECK-LABEL: define void @@_Z2t1v // CHECK: [[REFLOAD:%.*]] = load i32** @@a, align 8 // CHECK: load i32* [[REFLOAD]], align 4 extern int& a; int b = a; } void t2(int& a) { // CHECK-LABEL: define void @@_Z2t2Ri // CHECK: [[REFLOAD2:%.*]] = load i32** {{.*}}, align 8 // CHECK: load i32* [[REFLOAD2]], align 4 int b = a; } int g; int& gr = g; int& grr = gr; void t3() { int b = gr; } // Test reference binding. struct C { int a; }; void f(const bool&); void f(const int&); void f(const _Complex int&); void f(const C&); C aggregate_return(); bool& bool_reference_return(); int& int_reference_return(); _Complex int& complex_int_reference_return(); C& aggregate_reference_return(); void test_bool() { bool a = true; f(a); f(true); bool_reference_return() = true; a = bool_reference_return(); struct { const bool& b; } b = { true }; } void test_scalar() { int a = 10; f(a); struct { int bitfield : 3; } s = { 3 }; f(s.bitfield); f(10); __attribute((vector_size(16))) typedef int vec4; f((vec4){1,2,3,4}[0]); int_reference_return() = 10; a = int_reference_return(); struct { const int& a; } agg = { 10 }; } void test_complex() { _Complex int a = 10i; f(a); f(10i); complex_int_reference_return() = 10i; a = complex_int_reference_return(); struct { const _Complex int &a; } agg = { 10i }; } void test_aggregate() { C c; f(c); f(aggregate_return()); aggregate_reference_return().a = 10; c = aggregate_reference_return(); struct { const C& a; } agg = { C() }; } int& reference_return() { return g; } int reference_decl() { int& a = g; const int& b = 1; return a+b; } struct A { int& b(); }; void f(A* a) { int b = a->b(); } // PR5122 void *foo = 0; void * const & kFoo = foo; struct D : C { D(); ~D(); }; void h() { // CHECK: call void @@_ZN1DD1Ev const C& c = D(); } namespace T { struct A { A(); ~A(); }; struct B { B(); ~B(); A f(); }; void f() { // CHECK: call void @@_ZN1T1BC1Ev // CHECK: call void @@_ZN1T1B1fEv // CHECK: call void @@_ZN1T1BD1Ev const A& a = B().f(); // CHECK: call void @@_ZN1T1fEv f(); // CHECK: call void @@_ZN1T1AD1Ev } } // PR5227. namespace PR5227 { void f(int &a) { (a = 10) = 20; } } // PR5590 struct s0; struct s1 { struct s0 &s0; }; void f0(s1 a) { s1 b = a; } // PR6024 // CHECK: @@_Z2f2v() // CHECK: alloca i32, // CHECK-NEXT: store // CHECK-NEXT: ret const int &f2() { return 0; } // Don't constant fold const reference parameters with default arguments to // their default arguments. namespace N1 { const int foo = 1; // CHECK: @@_ZN2N14test void test(const int& arg = foo) { // Ensure this array is on the stack where we can set values instead of // being a global constant. // CHECK: %args_array = alloca const int* const args_array[] = { &arg }; } } // Bind to subobjects while extending the life of the complete object. namespace N2 { class X { public: X(const X&); X &operator=(const X&); ~X(); }; struct P { X first; }; P getP(); // CHECK-LABEL: define void @@_ZN2N21fEi // CHECK: call void @@_ZN2N24getPEv // CHECK: getelementptr inbounds // CHECK: store i32 17 // CHECK: call void @@_ZN2N21PD1Ev void f(int i) { const X& xr = getP().first; i = 17; } struct SpaceWaster { int i, j; }; struct ReallyHasX { X x; }; struct HasX : ReallyHasX { }; struct HasXContainer { HasX has; }; struct Y : SpaceWaster, HasXContainer { }; struct Z : SpaceWaster, Y { }; Z getZ(); // CHECK-LABEL: define void @@_ZN2N21gEi // CHECK: call void @@_ZN2N24getZEv // CHECK: {{getelementptr inbounds.*i32 0, i32 0}} // CHECK: {{getelementptr inbounds.*i32 0, i32 0}} // CHECK: store i32 19 // CHECK: call void @@_ZN2N21ZD1Ev // CHECK: ret void void g(int i) { const X &xr = getZ().has.x; i = 19; } } namespace N3 { // PR7326 struct A { explicit A(int); ~A(); }; // CHECK-LABEL: define internal void @@__cxx_global_var_init // CHECK: call void @@_ZN2N31AC1Ei(%"struct.N3::A"* @@_ZGRN2N35sA123E, i32 123) // CHECK: call i32 @@__cxa_atexit // CHECK: ret void const A &sA123 = A(123); } namespace N4 { struct A { A(); ~A(); }; void f() { // CHECK-LABEL: define void @@_ZN2N41fEv // CHECK: call void @@_ZN2N41AC1Ev(%"struct.N4::A"* @@_ZGRZN2N41fEvE2ar) // CHECK: call i32 @@__cxa_atexit // CHECK: ret void static const A& ar = A(); } } // PR9494 namespace N5 { struct AnyS { bool b; }; void f(const bool&); AnyS g(); void h() { // CHECK: call i8 @@_ZN2N51gEv() // CHECK: call void @@_ZN2N51fERKb(i8* f(g().b); } } // PR9565 namespace PR9565 { struct a { int a : 10, b : 10; }; // CHECK-LABEL: define void @@_ZN6PR95651fEv() void f() { // CHECK: call void @@llvm.memcpy a x = { 0, 0 }; // CHECK: [[WITH_SEVENTEEN:%[.a-zA-Z0-9]+]] = or i32 [[WITHOUT_SEVENTEEN:%[.a-zA-Z0-9]+]], 17 // CHECK: store i32 [[WITH_SEVENTEEN]], i32* [[XA:%[.a-zA-Z0-9]+]] x.a = 17; // CHECK-NEXT: bitcast // CHECK-NEXT: load // CHECK-NEXT: shl // CHECK-NEXT: ashr // CHECK-NEXT: store i32 // CHECK-NEXT: store i32* const int &y = x.a; // CHECK-NEXT: bitcast // CHECK-NEXT: load // CHECK-NEXT: and // CHECK-NEXT: or i32 {{.*}}, 19456 // CHECK-NEXT: store i32 x.b = 19; // CHECK-NEXT: ret void } } namespace N6 { extern struct x {char& x;}y; int a() { return y.x; } // CHECK-LABEL: define i32 @@_ZN2N61aEv // CHECK: [[REFLOAD3:%.*]] = load i8** getelementptr inbounds (%"struct.N6::x"* @@_ZN2N61yE, i32 0, i32 0), align 8 // CHECK: load i8* [[REFLOAD3]], align 1 } @