| // RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple=i386-pc-linux | FileCheck -check-prefix LINUX %s |
| // RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple=i386-pc-win32 -mconstructor-aliases -fno-rtti | FileCheck -check-prefix WIN32 %s |
| // RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple=thumb-pc-win32 -mconstructor-aliases -fno-rtti | FileCheck -check-prefix WOA %s |
| // RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple=x86_64-pc-win32 -mconstructor-aliases -fno-rtti | FileCheck -check-prefix WIN64 %s |
| // RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple=aarch64-windows-msvc -mconstructor-aliases -fno-rtti | FileCheck -check-prefix WOA64 %s |
| |
| struct Empty {}; |
| |
| struct EmptyWithCtor { |
| EmptyWithCtor() {} |
| }; |
| |
| struct Small { |
| int x; |
| }; |
| |
| // This is a C++11 trivial and standard-layout struct but not a C++03 POD. |
| struct SmallCpp11NotCpp03Pod : Empty { |
| int x; |
| }; |
| |
| struct SmallWithCtor { |
| SmallWithCtor() {} |
| int x; |
| }; |
| |
| struct Multibyte { |
| char a, b, c, d; |
| }; |
| |
| struct Packed { |
| short a; |
| int b; |
| short c; |
| }; |
| |
| struct SmallWithDtor { |
| SmallWithDtor(); |
| ~SmallWithDtor(); |
| int x; |
| }; |
| |
| struct SmallWithVftable { |
| int x; |
| virtual void foo(); |
| }; |
| |
| struct Medium { |
| int x, y; |
| }; |
| |
| struct MediumWithCopyCtor { |
| MediumWithCopyCtor(); |
| MediumWithCopyCtor(const struct MediumWithCopyCtor &); |
| int x, y; |
| }; |
| |
| struct Big { |
| int a, b, c, d, e, f; |
| }; |
| |
| struct BigWithDtor { |
| BigWithDtor(); |
| ~BigWithDtor(); |
| int a, b, c, d, e, f; |
| }; |
| |
| struct BaseNoByval : Small { |
| int bb; |
| }; |
| |
| struct SmallWithPrivate { |
| private: |
| int i; |
| }; |
| |
| // WIN32: declare dso_local void @"{{.*take_bools_and_chars.*}}" |
| // WIN32: (<{ i8, [3 x i8], i8, [3 x i8], %struct.SmallWithDtor, |
| // WIN32: i8, [3 x i8], i8, [3 x i8], i32, i8, [3 x i8] }>* inalloca) |
| void take_bools_and_chars(char a, char b, SmallWithDtor c, char d, bool e, int f, bool g); |
| void call_bools_and_chars() { |
| take_bools_and_chars('A', 'B', SmallWithDtor(), 'D', true, 13, false); |
| } |
| |
| // Returning structs that fit into a register. |
| Small small_return() { return Small(); } |
| // LINUX-LABEL: define void @_Z12small_returnv(%struct.Small* noalias sret %agg.result) |
| // WIN32: define dso_local i32 @"?small_return@@YA?AUSmall@@XZ"() |
| // WIN64: define dso_local i32 @"?small_return@@YA?AUSmall@@XZ"() |
| |
| Medium medium_return() { return Medium(); } |
| // LINUX-LABEL: define void @_Z13medium_returnv(%struct.Medium* noalias sret %agg.result) |
| // WIN32: define dso_local i64 @"?medium_return@@YA?AUMedium@@XZ"() |
| // WIN64: define dso_local i64 @"?medium_return@@YA?AUMedium@@XZ"() |
| |
| // Returning structs that fit into a register but are not POD. |
| SmallCpp11NotCpp03Pod small_non_pod_return() { return SmallCpp11NotCpp03Pod(); } |
| // LINUX-LABEL: define void @_Z20small_non_pod_returnv(%struct.SmallCpp11NotCpp03Pod* noalias sret %agg.result) |
| // WIN32: define dso_local void @"?small_non_pod_return@@YA?AUSmallCpp11NotCpp03Pod@@XZ"(%struct.SmallCpp11NotCpp03Pod* noalias sret %agg.result) |
| // WIN64: define dso_local void @"?small_non_pod_return@@YA?AUSmallCpp11NotCpp03Pod@@XZ"(%struct.SmallCpp11NotCpp03Pod* noalias sret %agg.result) |
| |
| SmallWithCtor small_with_ctor_return() { return SmallWithCtor(); } |
| // LINUX-LABEL: define void @_Z22small_with_ctor_returnv(%struct.SmallWithCtor* noalias sret %agg.result) |
| // WIN32: define dso_local void @"?small_with_ctor_return@@YA?AUSmallWithCtor@@XZ"(%struct.SmallWithCtor* noalias sret %agg.result) |
| // WIN64: define dso_local void @"?small_with_ctor_return@@YA?AUSmallWithCtor@@XZ"(%struct.SmallWithCtor* noalias sret %agg.result) |
| // FIXME: The 'sret' mark here doesn't seem to be enough to convince LLVM to |
| // preserve the hidden sret pointer in R0 across the function. |
| // WOA: define dso_local arm_aapcs_vfpcc void @"?small_with_ctor_return@@YA?AUSmallWithCtor@@XZ"(%struct.SmallWithCtor* noalias sret %agg.result) |
| |
| SmallWithVftable small_with_vftable_return() { return SmallWithVftable(); } |
| // LINUX-LABEL: define void @_Z25small_with_vftable_returnv(%struct.SmallWithVftable* noalias sret %agg.result) |
| // WIN32: define dso_local void @"?small_with_vftable_return@@YA?AUSmallWithVftable@@XZ"(%struct.SmallWithVftable* noalias sret %agg.result) |
| // WIN64: define dso_local void @"?small_with_vftable_return@@YA?AUSmallWithVftable@@XZ"(%struct.SmallWithVftable* noalias sret %agg.result) |
| |
| MediumWithCopyCtor medium_with_copy_ctor_return() { return MediumWithCopyCtor(); } |
| // LINUX-LABEL: define void @_Z28medium_with_copy_ctor_returnv(%struct.MediumWithCopyCtor* noalias sret %agg.result) |
| // WIN32: define dso_local void @"?medium_with_copy_ctor_return@@YA?AUMediumWithCopyCtor@@XZ"(%struct.MediumWithCopyCtor* noalias sret %agg.result) |
| // WIN64: define dso_local void @"?medium_with_copy_ctor_return@@YA?AUMediumWithCopyCtor@@XZ"(%struct.MediumWithCopyCtor* noalias sret %agg.result) |
| // WOA: define dso_local arm_aapcs_vfpcc void @"?medium_with_copy_ctor_return@@YA?AUMediumWithCopyCtor@@XZ"(%struct.MediumWithCopyCtor* noalias sret %agg.result) |
| |
| // Returning a large struct that doesn't fit into a register. |
| Big big_return() { return Big(); } |
| // LINUX-LABEL: define void @_Z10big_returnv(%struct.Big* noalias sret %agg.result) |
| // WIN32: define dso_local void @"?big_return@@YA?AUBig@@XZ"(%struct.Big* noalias sret %agg.result) |
| // WIN64: define dso_local void @"?big_return@@YA?AUBig@@XZ"(%struct.Big* noalias sret %agg.result) |
| |
| |
| void small_arg(Small s) {} |
| // LINUX-LABEL: define void @_Z9small_arg5Small(i32 %s.0) |
| // WIN32: define dso_local void @"?small_arg@@YAXUSmall@@@Z"(i32 %s.0) |
| // WIN64: define dso_local void @"?small_arg@@YAXUSmall@@@Z"(i32 %s.coerce) |
| // WOA: define dso_local arm_aapcs_vfpcc void @"?small_arg@@YAXUSmall@@@Z"([1 x i32] %s.coerce) |
| |
| void medium_arg(Medium s) {} |
| // LINUX-LABEL: define void @_Z10medium_arg6Medium(i32 %s.0, i32 %s.1) |
| // WIN32: define dso_local void @"?medium_arg@@YAXUMedium@@@Z"(i32 %s.0, i32 %s.1) |
| // WIN64: define dso_local void @"?medium_arg@@YAXUMedium@@@Z"(i64 %s.coerce) |
| // WOA: define dso_local arm_aapcs_vfpcc void @"?medium_arg@@YAXUMedium@@@Z"([2 x i32] %s.coerce) |
| |
| void base_no_byval_arg(BaseNoByval s) {} |
| // LINUX-LABEL: define void @_Z17base_no_byval_arg11BaseNoByval(%struct.BaseNoByval* byval(%struct.BaseNoByval) align 4 %s) |
| // WIN32: define dso_local void @"?base_no_byval_arg@@YAXUBaseNoByval@@@Z"(i32 %s.0, i32 %s.1) |
| // WIN64: define dso_local void @"?base_no_byval_arg@@YAXUBaseNoByval@@@Z"(i64 %s.coerce) |
| // WOA: define dso_local arm_aapcs_vfpcc void @"?base_no_byval_arg@@YAXUBaseNoByval@@@Z"([2 x i32] %s.coerce) |
| |
| void small_arg_with_ctor(SmallWithCtor s) {} |
| // LINUX-LABEL: define void @_Z19small_arg_with_ctor13SmallWithCtor(%struct.SmallWithCtor* byval(%struct.SmallWithCtor) align 4 %s) |
| // WIN32: define dso_local void @"?small_arg_with_ctor@@YAXUSmallWithCtor@@@Z"(i32 %s.0) |
| // WIN64: define dso_local void @"?small_arg_with_ctor@@YAXUSmallWithCtor@@@Z"(i32 %s.coerce) |
| // WOA: define dso_local arm_aapcs_vfpcc void @"?small_arg_with_ctor@@YAXUSmallWithCtor@@@Z"([1 x i32] %s.coerce) |
| |
| // FIXME: We could coerce to a series of i32s here if we wanted to. |
| void multibyte_arg(Multibyte s) {} |
| // LINUX-LABEL: define void @_Z13multibyte_arg9Multibyte(%struct.Multibyte* byval(%struct.Multibyte) align 4 %s) |
| // WIN32: define dso_local void @"?multibyte_arg@@YAXUMultibyte@@@Z"(%struct.Multibyte* byval(%struct.Multibyte) align 4 %s) |
| // WIN64: define dso_local void @"?multibyte_arg@@YAXUMultibyte@@@Z"(i32 %s.coerce) |
| // WOA: define dso_local arm_aapcs_vfpcc void @"?multibyte_arg@@YAXUMultibyte@@@Z"([1 x i32] %s.coerce) |
| |
| void packed_arg(Packed s) {} |
| // LINUX-LABEL: define void @_Z10packed_arg6Packed(%struct.Packed* byval(%struct.Packed) align 4 %s) |
| // WIN32: define dso_local void @"?packed_arg@@YAXUPacked@@@Z"(%struct.Packed* byval(%struct.Packed) align 4 %s) |
| // WIN64: define dso_local void @"?packed_arg@@YAXUPacked@@@Z"(%struct.Packed* %s) |
| |
| // Test that dtors are invoked in the callee. |
| void small_arg_with_dtor(SmallWithDtor s) {} |
| // WIN32: define dso_local void @"?small_arg_with_dtor@@YAXUSmallWithDtor@@@Z"(<{ %struct.SmallWithDtor }>* inalloca %0) {{.*}} { |
| // WIN32: call x86_thiscallcc void @"??1SmallWithDtor@@QAE@XZ" |
| // WIN32: } |
| // WIN64: define dso_local void @"?small_arg_with_dtor@@YAXUSmallWithDtor@@@Z"(i32 %s.coerce) {{.*}} { |
| // WIN64: call void @"??1SmallWithDtor@@QEAA@XZ" |
| // WIN64: } |
| // WOA64: define dso_local void @"?small_arg_with_dtor@@YAXUSmallWithDtor@@@Z"(i64 %s.coerce) {{.*}} { |
| // WOA64: call void @"??1SmallWithDtor@@QEAA@XZ"(%struct.SmallWithDtor* %s) |
| // WOA64: } |
| |
| // FIXME: MSVC incompatible! |
| // WOA: define dso_local arm_aapcs_vfpcc void @"?small_arg_with_dtor@@YAXUSmallWithDtor@@@Z"(%struct.SmallWithDtor* %s) {{.*}} { |
| // WOA: call arm_aapcs_vfpcc void @"??1SmallWithDtor@@QAA@XZ"(%struct.SmallWithDtor* %s) |
| // WOA: } |
| |
| |
| // Test that the eligible non-aggregate is passed directly, but returned |
| // indirectly on ARM64 Windows. |
| // WOA64: define dso_local void @"?small_arg_with_private_member@@YA?AUSmallWithPrivate@@U1@@Z"(%struct.SmallWithPrivate* inreg noalias sret %agg.result, i64 %s.coerce) {{.*}} { |
| SmallWithPrivate small_arg_with_private_member(SmallWithPrivate s) { return s; } |
| |
| void call_small_arg_with_dtor() { |
| small_arg_with_dtor(SmallWithDtor()); |
| } |
| // WIN64-LABEL: define dso_local void @"?call_small_arg_with_dtor@@YAXXZ"() |
| // WIN64: call %struct.SmallWithDtor* @"??0SmallWithDtor@@QEAA@XZ" |
| // WIN64: call void @"?small_arg_with_dtor@@YAXUSmallWithDtor@@@Z"(i32 %{{.*}}) |
| // WIN64: ret void |
| |
| // Test that references aren't destroyed in the callee. |
| void ref_small_arg_with_dtor(const SmallWithDtor &s) { } |
| // WIN32: define dso_local void @"?ref_small_arg_with_dtor@@YAXABUSmallWithDtor@@@Z"(%struct.SmallWithDtor* dereferenceable({{[0-9]+}}) %s) {{.*}} { |
| // WIN32-NOT: call x86_thiscallcc void @"??1SmallWithDtor@@QAE@XZ" |
| // WIN32: } |
| // WIN64-LABEL: define dso_local void @"?ref_small_arg_with_dtor@@YAXAEBUSmallWithDtor@@@Z"(%struct.SmallWithDtor* dereferenceable({{[0-9]+}}) %s) |
| |
| void big_arg_with_dtor(BigWithDtor s) {} |
| // WIN64-LABEL: define dso_local void @"?big_arg_with_dtor@@YAXUBigWithDtor@@@Z"(%struct.BigWithDtor* %s) |
| // WIN64: call void @"??1BigWithDtor@@QEAA@XZ" |
| // WIN64: } |
| |
| void call_big_arg_with_dtor() { |
| big_arg_with_dtor(BigWithDtor()); |
| } |
| // We can elide the copy of the temporary in the caller, because this object is |
| // larger than 8 bytes and is passed indirectly. |
| // WIN64-LABEL: define dso_local void @"?call_big_arg_with_dtor@@YAXXZ"() |
| // WIN64: call %struct.BigWithDtor* @"??0BigWithDtor@@QEAA@XZ" |
| // WIN64: call void @"?big_arg_with_dtor@@YAXUBigWithDtor@@@Z"(%struct.BigWithDtor* %{{.*}}) |
| // WIN64-NOT: call void @"??1BigWithDtor@@QEAA@XZ" |
| // WIN64: ret void |
| |
| // Test that temporaries passed by reference are destroyed in the caller. |
| void temporary_ref_with_dtor() { |
| ref_small_arg_with_dtor(SmallWithDtor()); |
| } |
| // WIN32: define dso_local void @"?temporary_ref_with_dtor@@YAXXZ"() {{.*}} { |
| // WIN32: call x86_thiscallcc %struct.SmallWithDtor* @"??0SmallWithDtor@@QAE@XZ" |
| // WIN32: call void @"?ref_small_arg_with_dtor@@YAXABUSmallWithDtor@@@Z" |
| // WIN32: call x86_thiscallcc void @"??1SmallWithDtor@@QAE@XZ" |
| // WIN32: } |
| |
| void takes_two_by_val_with_dtor(SmallWithDtor a, SmallWithDtor b); |
| void eh_cleanup_arg_with_dtor() { |
| takes_two_by_val_with_dtor(SmallWithDtor(), SmallWithDtor()); |
| } |
| // When exceptions are off, we don't have any cleanups. See |
| // microsoft-abi-exceptions.cpp for these cleanups. |
| // WIN32: define dso_local void @"?eh_cleanup_arg_with_dtor@@YAXXZ"() {{.*}} { |
| // WIN32: call x86_thiscallcc %struct.SmallWithDtor* @"??0SmallWithDtor@@QAE@XZ" |
| // WIN32: call x86_thiscallcc %struct.SmallWithDtor* @"??0SmallWithDtor@@QAE@XZ" |
| // WIN32: call void @"?takes_two_by_val_with_dtor@@YAXUSmallWithDtor@@0@Z" |
| // WIN32-NOT: call x86_thiscallcc void @"??1SmallWithDtor@@QAE@XZ" |
| // WIN32: } |
| |
| void small_arg_with_vftable(SmallWithVftable s) {} |
| // LINUX-LABEL: define void @_Z22small_arg_with_vftable16SmallWithVftable(%struct.SmallWithVftable* %s) |
| // WIN32: define dso_local void @"?small_arg_with_vftable@@YAXUSmallWithVftable@@@Z"(<{ %struct.SmallWithVftable }>* inalloca %0) |
| // WIN64: define dso_local void @"?small_arg_with_vftable@@YAXUSmallWithVftable@@@Z"(%struct.SmallWithVftable* %s) |
| // WOA64: define dso_local void @"?small_arg_with_vftable@@YAXUSmallWithVftable@@@Z"(%struct.SmallWithVftable* %s) |
| |
| void medium_arg_with_copy_ctor(MediumWithCopyCtor s) {} |
| // LINUX-LABEL: define void @_Z25medium_arg_with_copy_ctor18MediumWithCopyCtor(%struct.MediumWithCopyCtor* %s) |
| // WIN32: define dso_local void @"?medium_arg_with_copy_ctor@@YAXUMediumWithCopyCtor@@@Z"(<{ %struct.MediumWithCopyCtor }>* inalloca %0) |
| // WIN64: define dso_local void @"?medium_arg_with_copy_ctor@@YAXUMediumWithCopyCtor@@@Z"(%struct.MediumWithCopyCtor* %s) |
| // WOA: define dso_local arm_aapcs_vfpcc void @"?medium_arg_with_copy_ctor@@YAXUMediumWithCopyCtor@@@Z"(%struct.MediumWithCopyCtor* %s) |
| // WOA64: define dso_local void @"?medium_arg_with_copy_ctor@@YAXUMediumWithCopyCtor@@@Z"(%struct.MediumWithCopyCtor* %s) |
| |
| void big_arg(Big s) {} |
| // LINUX-LABEL: define void @_Z7big_arg3Big(%struct.Big* byval(%struct.Big) align 4 %s) |
| // WIN32: define dso_local void @"?big_arg@@YAXUBig@@@Z"(%struct.Big* byval(%struct.Big) align 4 %s) |
| // WIN64: define dso_local void @"?big_arg@@YAXUBig@@@Z"(%struct.Big* %s) |
| |
| // PR27607: We would attempt to load i32 value out of the reference instead of |
| // just loading the pointer from the struct during argument expansion. |
| struct RefField { |
| RefField(int &x); |
| int &x; |
| }; |
| void takes_ref_field(RefField s) {} |
| // LINUX-LABEL: define void @_Z15takes_ref_field8RefField(%struct.RefField* byval(%struct.RefField) align 4 %s) |
| // WIN32: define dso_local void @"?takes_ref_field@@YAXURefField@@@Z"(i32* %s.0) |
| // WIN64: define dso_local void @"?takes_ref_field@@YAXURefField@@@Z"(i64 %s.coerce) |
| |
| void pass_ref_field() { |
| int x; |
| takes_ref_field(RefField(x)); |
| } |
| // LINUX-LABEL: define void @_Z14pass_ref_fieldv() |
| // LINUX: call void @_Z15takes_ref_field8RefField(%struct.RefField* byval(%struct.RefField) align 4 %{{.*}}) |
| // WIN32-LABEL: define dso_local void @"?pass_ref_field@@YAXXZ"() |
| // WIN32: call void @"?takes_ref_field@@YAXURefField@@@Z"(i32* %{{.*}}) |
| // WIN64-LABEL: define dso_local void @"?pass_ref_field@@YAXXZ"() |
| // WIN64: call void @"?takes_ref_field@@YAXURefField@@@Z"(i64 %{{.*}}) |
| |
| class Class { |
| public: |
| Small thiscall_method_small() { return Small(); } |
| // LINUX: define {{.*}} void @_ZN5Class21thiscall_method_smallEv(%struct.Small* noalias sret %agg.result, %class.Class* %this) |
| // WIN32: define {{.*}} x86_thiscallcc void @"?thiscall_method_small@Class@@QAE?AUSmall@@XZ"(%class.Class* %this, %struct.Small* noalias sret %agg.result) |
| // WIN64: define linkonce_odr dso_local void @"?thiscall_method_small@Class@@QEAA?AUSmall@@XZ"(%class.Class* %this, %struct.Small* noalias sret %agg.result) |
| |
| SmallWithCtor thiscall_method_small_with_ctor() { return SmallWithCtor(); } |
| // LINUX: define {{.*}} void @_ZN5Class31thiscall_method_small_with_ctorEv(%struct.SmallWithCtor* noalias sret %agg.result, %class.Class* %this) |
| // WIN32: define {{.*}} x86_thiscallcc void @"?thiscall_method_small_with_ctor@Class@@QAE?AUSmallWithCtor@@XZ"(%class.Class* %this, %struct.SmallWithCtor* noalias sret %agg.result) |
| // WIN64: define linkonce_odr dso_local void @"?thiscall_method_small_with_ctor@Class@@QEAA?AUSmallWithCtor@@XZ"(%class.Class* %this, %struct.SmallWithCtor* noalias sret %agg.result) |
| |
| Small __cdecl cdecl_method_small() { return Small(); } |
| // LINUX: define {{.*}} void @_ZN5Class18cdecl_method_smallEv(%struct.Small* noalias sret %agg.result, %class.Class* %this) |
| // WIN32: define {{.*}} void @"?cdecl_method_small@Class@@QAA?AUSmall@@XZ"(%class.Class* %this, %struct.Small* noalias sret %agg.result) |
| // WIN64: define linkonce_odr dso_local void @"?cdecl_method_small@Class@@QEAA?AUSmall@@XZ"(%class.Class* %this, %struct.Small* noalias sret %agg.result) |
| |
| Big __cdecl cdecl_method_big() { return Big(); } |
| // LINUX: define {{.*}} void @_ZN5Class16cdecl_method_bigEv(%struct.Big* noalias sret %agg.result, %class.Class* %this) |
| // WIN32: define {{.*}} void @"?cdecl_method_big@Class@@QAA?AUBig@@XZ"(%class.Class* %this, %struct.Big* noalias sret %agg.result) |
| // WIN64: define linkonce_odr dso_local void @"?cdecl_method_big@Class@@QEAA?AUBig@@XZ"(%class.Class* %this, %struct.Big* noalias sret %agg.result) |
| |
| void thiscall_method_arg(Empty s) {} |
| // LINUX: define {{.*}} void @_ZN5Class19thiscall_method_argE5Empty(%class.Class* %this) |
| // WIN32: define {{.*}} void @"?thiscall_method_arg@Class@@QAEXUEmpty@@@Z"(%class.Class* %this, %struct.Empty* byval(%struct.Empty) align 4 %s) |
| // WIN64: define linkonce_odr dso_local void @"?thiscall_method_arg@Class@@QEAAXUEmpty@@@Z"(%class.Class* %this, i8 %s.coerce) |
| |
| void thiscall_method_arg(EmptyWithCtor s) {} |
| // LINUX: define {{.*}} void @_ZN5Class19thiscall_method_argE13EmptyWithCtor(%class.Class* %this) |
| // WIN32: define {{.*}} void @"?thiscall_method_arg@Class@@QAEXUEmptyWithCtor@@@Z"(%class.Class* %this, %struct.EmptyWithCtor* byval(%struct.EmptyWithCtor) align 4 %s) |
| // WIN64: define linkonce_odr dso_local void @"?thiscall_method_arg@Class@@QEAAXUEmptyWithCtor@@@Z"(%class.Class* %this, i8 %s.coerce) |
| |
| void thiscall_method_arg(Small s) {} |
| // LINUX: define {{.*}} void @_ZN5Class19thiscall_method_argE5Small(%class.Class* %this, i32 %s.0) |
| // WIN32: define {{.*}} void @"?thiscall_method_arg@Class@@QAEXUSmall@@@Z"(%class.Class* %this, i32 %s.0) |
| // WIN64: define linkonce_odr dso_local void @"?thiscall_method_arg@Class@@QEAAXUSmall@@@Z"(%class.Class* %this, i32 %s.coerce) |
| |
| void thiscall_method_arg(SmallWithCtor s) {} |
| // LINUX: define {{.*}} void @_ZN5Class19thiscall_method_argE13SmallWithCtor(%class.Class* %this, %struct.SmallWithCtor* byval(%struct.SmallWithCtor) align 4 %s) |
| // WIN32: define {{.*}} void @"?thiscall_method_arg@Class@@QAEXUSmallWithCtor@@@Z"(%class.Class* %this, i32 %s.0) |
| // WIN64: define linkonce_odr dso_local void @"?thiscall_method_arg@Class@@QEAAXUSmallWithCtor@@@Z"(%class.Class* %this, i32 %s.coerce) |
| |
| void thiscall_method_arg(Big s) {} |
| // LINUX: define {{.*}} void @_ZN5Class19thiscall_method_argE3Big(%class.Class* %this, %struct.Big* byval(%struct.Big) align 4 %s) |
| // WIN32: define {{.*}} void @"?thiscall_method_arg@Class@@QAEXUBig@@@Z"(%class.Class* %this, %struct.Big* byval(%struct.Big) align 4 %s) |
| // WIN64: define linkonce_odr dso_local void @"?thiscall_method_arg@Class@@QEAAXUBig@@@Z"(%class.Class* %this, %struct.Big* %s) |
| }; |
| |
| void use_class() { |
| Class c; |
| c.thiscall_method_small(); |
| c.thiscall_method_small_with_ctor(); |
| |
| c.cdecl_method_small(); |
| c.cdecl_method_big(); |
| |
| c.thiscall_method_arg(Empty()); |
| c.thiscall_method_arg(EmptyWithCtor()); |
| c.thiscall_method_arg(Small()); |
| c.thiscall_method_arg(SmallWithCtor()); |
| c.thiscall_method_arg(Big()); |
| } |
| |
| struct X { |
| X(); |
| ~X(); |
| }; |
| void g(X) { |
| } |
| // WIN32: define dso_local void @"?g@@YAXUX@@@Z"(<{ %struct.X, [3 x i8] }>* inalloca %0) {{.*}} { |
| // WIN32: call x86_thiscallcc void @"??1X@@QAE@XZ"(%struct.X* {{.*}}) |
| // WIN32: } |
| void f() { |
| g(X()); |
| } |
| // WIN32: define dso_local void @"?f@@YAXXZ"() {{.*}} { |
| // WIN32-NOT: call {{.*}} @"??1X@@QAE@XZ" |
| // WIN32: } |
| |
| |
| namespace test2 { |
| // We used to crash on this due to the mixture of POD byval and non-trivial |
| // byval. |
| |
| struct NonTrivial { |
| NonTrivial(); |
| NonTrivial(const NonTrivial &o); |
| ~NonTrivial(); |
| int a; |
| }; |
| struct POD { int b; }; |
| |
| int foo(NonTrivial a, POD b); |
| void bar() { |
| POD b; |
| b.b = 13; |
| int c = foo(NonTrivial(), b); |
| } |
| // WIN32-LABEL: define dso_local void @"?bar@test2@@YAXXZ"() {{.*}} { |
| // WIN32: %[[argmem:[^ ]*]] = alloca inalloca [[argmem_ty:<{ %"struct.test2::NonTrivial", %"struct.test2::POD" }>]] |
| // WIN32: getelementptr inbounds [[argmem_ty]], [[argmem_ty]]* %[[argmem]], i32 0, i32 1 |
| // WIN32: call void @llvm.memcpy |
| // WIN32: getelementptr inbounds [[argmem_ty]], [[argmem_ty]]* %[[argmem]], i32 0, i32 0 |
| // WIN32: call x86_thiscallcc %"struct.test2::NonTrivial"* @"??0NonTrivial@test2@@QAE@XZ" |
| // WIN32: call i32 @"?foo@test2@@YAHUNonTrivial@1@UPOD@1@@Z"([[argmem_ty]]* inalloca %argmem) |
| // WIN32: ret void |
| // WIN32: } |
| |
| } |
| |
| namespace test3 { |
| |
| // Check that we padded the inalloca struct to a multiple of 4. |
| struct NonTrivial { |
| NonTrivial(); |
| NonTrivial(const NonTrivial &o); |
| ~NonTrivial(); |
| int a; |
| }; |
| void foo(NonTrivial a, bool b) { } |
| // WIN32-LABEL: define dso_local void @"?foo@test3@@YAXUNonTrivial@1@_N@Z"(<{ %"struct.test3::NonTrivial", i8, [3 x i8] }>* inalloca %0) |
| |
| } |
| |
| // We would crash here because the later definition of ForwardDeclare1 results |
| // in a different IR type for the value we want to store. However, the alloca's |
| // type will use the argument type selected by fn1. |
| struct ForwardDeclare1; |
| |
| typedef void (*FnPtr1)(ForwardDeclare1); |
| void fn1(FnPtr1 a, SmallWithDtor b) { } |
| |
| struct ForwardDeclare1 {}; |
| |
| void fn2(FnPtr1 a, SmallWithDtor b) { fn1(a, b); }; |
| // WIN32-LABEL: define dso_local void @"?fn2@@YAXP6AXUForwardDeclare1@@@ZUSmallWithDtor@@@Z" |
| // WIN32: %[[a:[^ ]*]] = getelementptr inbounds [[argmem_ty:<{ {}\*, %struct.SmallWithDtor }>]], [[argmem_ty:<{ {}\*, %struct.SmallWithDtor }>]]* %{{.*}}, i32 0, i32 0 |
| // WIN32: %[[a1:[^ ]*]] = bitcast {}** %[[a]] to void [[dst_ty:\(%struct.ForwardDeclare1\*\)\*]]* |
| // WIN32: %[[argmem:[^ ]*]] = alloca inalloca [[argmem_ty]] |
| // WIN32: %[[gep1:[^ ]*]] = getelementptr inbounds [[argmem_ty]], [[argmem_ty]]* %[[argmem]], i32 0, i32 1 |
| // WIN32: %[[bc1:[^ ]*]] = bitcast %struct.SmallWithDtor* %[[gep1]] to i8* |
| // WIN32: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %[[bc1]], i8* align 4 {{.*}}, i32 4, i1 false) |
| // WIN32: %[[a2:[^ ]*]] = load void [[dst_ty]], void [[dst_ty]]* %[[a1]], align 4 |
| // WIN32: %[[gep2:[^ ]*]] = getelementptr inbounds [[argmem_ty]], [[argmem_ty]]* %[[argmem]], i32 0, i32 0 |
| // WIN32: %[[addr:[^ ]*]] = bitcast {}** %[[gep2]] to void [[dst_ty]]* |
| // WIN32: store void [[dst_ty]] %[[a2]], void [[dst_ty]]* %[[addr]], align 4 |
| // WIN32: call void @"?fn1@@YAXP6AXUForwardDeclare1@@@ZUSmallWithDtor@@@Z"([[argmem_ty]]* inalloca %[[argmem]]) |
| |
| namespace pr30293 { |
| // Virtual methods living in a secondary vtable take i8* as their 'this' |
| // parameter because the 'this' parameter on entry points to the secondary |
| // vptr. We used to have a bug where we didn't apply this rule consistently, |
| // and it would cause assertion failures when used with inalloca. |
| struct A { |
| virtual void f(); |
| }; |
| struct B { |
| virtual void __cdecl h(SmallWithDtor); |
| }; |
| struct C final : A, B { |
| void g(); |
| void __cdecl h(SmallWithDtor); |
| void f(); |
| }; |
| void C::g() { return h(SmallWithDtor()); } |
| |
| // WIN32-LABEL: define dso_local x86_thiscallcc void @"?g@C@pr30293@@QAEXXZ"(%"struct.pr30293::C"* %this) |
| // WIN32: call x86_thiscallcc %struct.SmallWithDtor* @"??0SmallWithDtor@@QAE@XZ" |
| // WIN32: call void @"?h@C@pr30293@@UAAXUSmallWithDtor@@@Z"(<{ i8*, %struct.SmallWithDtor }>* inalloca %{{[^,)]*}}) |
| // WIN32: declare dso_local void @"?h@C@pr30293@@UAAXUSmallWithDtor@@@Z"(<{ i8*, %struct.SmallWithDtor }>* inalloca) |
| |
| // WIN64-LABEL: define dso_local void @"?g@C@pr30293@@QEAAXXZ"(%"struct.pr30293::C"* %this) |
| // WIN64: declare dso_local void @"?h@C@pr30293@@UEAAXUSmallWithDtor@@@Z"(i8*, i32) |
| } |
