2013-04-17 20:54:10 +08:00
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// RUN: %clang_cc1 -emit-llvm %s -o - -triple=i386-pc-linux | FileCheck -check-prefix LINUX %s
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2014-01-15 03:35:09 +08:00
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// RUN: %clang_cc1 -emit-llvm %s -o - -triple=i386-pc-win32 -mconstructor-aliases -fno-rtti | FileCheck -check-prefix WIN32 %s
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// RUN: %clang_cc1 -emit-llvm %s -o - -triple=x86_64-pc-win32 -mconstructor-aliases -fno-rtti | FileCheck -check-prefix WIN64 %s
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2013-04-17 20:54:10 +08:00
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struct Empty {};
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struct EmptyWithCtor {
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EmptyWithCtor() {}
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};
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struct Small {
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int x;
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};
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// This is a C++11 trivial and standard-layout struct but not a C++03 POD.
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struct SmallCpp11NotCpp03Pod : Empty {
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int x;
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};
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struct SmallWithCtor {
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SmallWithCtor() {}
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int x;
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};
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2013-06-21 20:45:15 +08:00
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struct SmallWithDtor {
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SmallWithDtor();
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~SmallWithDtor();
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int x;
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};
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2013-04-17 20:54:10 +08:00
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struct SmallWithVftable {
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int x;
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virtual void foo();
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};
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struct Medium {
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int x, y;
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};
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struct MediumWithCopyCtor {
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MediumWithCopyCtor();
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MediumWithCopyCtor(const struct MediumWithCopyCtor &);
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int x, y;
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};
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struct Big {
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int a, b, c, d, e, f;
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};
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2014-02-01 08:04:45 +08:00
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// WIN32: declare void @"{{.*take_bools_and_chars.*}}"
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// WIN32: (<{ i8, [3 x i8], i8, [3 x i8], %struct.SmallWithDtor,
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// WIN32: i8, [3 x i8], i8, [3 x i8], i32, i8 }>* inalloca)
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void take_bools_and_chars(char a, char b, SmallWithDtor c, char d, bool e, int f, bool g);
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void call_bools_and_chars() {
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take_bools_and_chars('A', 'B', SmallWithDtor(), 'D', true, 13, false);
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}
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2013-04-17 20:54:10 +08:00
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// Returning structs that fit into a register.
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Small small_return() { return Small(); }
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2013-08-15 14:47:53 +08:00
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// LINUX-LABEL: define void @_Z12small_returnv(%struct.Small* noalias sret %agg.result)
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2013-04-17 20:54:10 +08:00
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// WIN32: define i32 @"\01?small_return@@YA?AUSmall@@XZ"()
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// WIN64: define i32 @"\01?small_return@@YA?AUSmall@@XZ"()
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Medium medium_return() { return Medium(); }
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2013-08-15 14:47:53 +08:00
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// LINUX-LABEL: define void @_Z13medium_returnv(%struct.Medium* noalias sret %agg.result)
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2013-04-17 20:54:10 +08:00
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// WIN32: define i64 @"\01?medium_return@@YA?AUMedium@@XZ"()
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// WIN64: define i64 @"\01?medium_return@@YA?AUMedium@@XZ"()
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// Returning structs that fit into a register but are not POD.
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SmallCpp11NotCpp03Pod small_non_pod_return() { return SmallCpp11NotCpp03Pod(); }
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2013-08-15 14:47:53 +08:00
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// LINUX-LABEL: define void @_Z20small_non_pod_returnv(%struct.SmallCpp11NotCpp03Pod* noalias sret %agg.result)
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2013-04-17 20:54:10 +08:00
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// WIN32: define void @"\01?small_non_pod_return@@YA?AUSmallCpp11NotCpp03Pod@@XZ"(%struct.SmallCpp11NotCpp03Pod* noalias sret %agg.result)
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// WIN64: define void @"\01?small_non_pod_return@@YA?AUSmallCpp11NotCpp03Pod@@XZ"(%struct.SmallCpp11NotCpp03Pod* noalias sret %agg.result)
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SmallWithCtor small_with_ctor_return() { return SmallWithCtor(); }
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2013-08-15 14:47:53 +08:00
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// LINUX-LABEL: define void @_Z22small_with_ctor_returnv(%struct.SmallWithCtor* noalias sret %agg.result)
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2013-04-17 20:54:10 +08:00
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// WIN32: define void @"\01?small_with_ctor_return@@YA?AUSmallWithCtor@@XZ"(%struct.SmallWithCtor* noalias sret %agg.result)
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// WIN64: define void @"\01?small_with_ctor_return@@YA?AUSmallWithCtor@@XZ"(%struct.SmallWithCtor* noalias sret %agg.result)
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SmallWithVftable small_with_vftable_return() { return SmallWithVftable(); }
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2013-08-15 14:47:53 +08:00
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// LINUX-LABEL: define void @_Z25small_with_vftable_returnv(%struct.SmallWithVftable* noalias sret %agg.result)
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2013-04-17 20:54:10 +08:00
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// WIN32: define void @"\01?small_with_vftable_return@@YA?AUSmallWithVftable@@XZ"(%struct.SmallWithVftable* noalias sret %agg.result)
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// WIN64: define void @"\01?small_with_vftable_return@@YA?AUSmallWithVftable@@XZ"(%struct.SmallWithVftable* noalias sret %agg.result)
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MediumWithCopyCtor medium_with_copy_ctor_return() { return MediumWithCopyCtor(); }
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2013-08-15 14:47:53 +08:00
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// LINUX-LABEL: define void @_Z28medium_with_copy_ctor_returnv(%struct.MediumWithCopyCtor* noalias sret %agg.result)
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2013-04-17 20:54:10 +08:00
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// WIN32: define void @"\01?medium_with_copy_ctor_return@@YA?AUMediumWithCopyCtor@@XZ"(%struct.MediumWithCopyCtor* noalias sret %agg.result)
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// WIN64: define void @"\01?medium_with_copy_ctor_return@@YA?AUMediumWithCopyCtor@@XZ"(%struct.MediumWithCopyCtor* noalias sret %agg.result)
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// Returning a large struct that doesn't fit into a register.
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Big big_return() { return Big(); }
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2013-08-15 14:47:53 +08:00
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// LINUX-LABEL: define void @_Z10big_returnv(%struct.Big* noalias sret %agg.result)
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2013-04-17 20:54:10 +08:00
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// WIN32: define void @"\01?big_return@@YA?AUBig@@XZ"(%struct.Big* noalias sret %agg.result)
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// WIN64: define void @"\01?big_return@@YA?AUBig@@XZ"(%struct.Big* noalias sret %agg.result)
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void small_arg(Small s) {}
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2013-08-15 14:47:53 +08:00
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// LINUX-LABEL: define void @_Z9small_arg5Small(%struct.Small* byval align 4 %s)
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2013-04-17 20:54:10 +08:00
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// WIN32: define void @"\01?small_arg@@YAXUSmall@@@Z"(%struct.Small* byval align 4 %s)
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// WIN64: define void @"\01?small_arg@@YAXUSmall@@@Z"(i32 %s.coerce)
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void medium_arg(Medium s) {}
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2013-08-15 14:47:53 +08:00
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// LINUX-LABEL: define void @_Z10medium_arg6Medium(%struct.Medium* byval align 4 %s)
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2013-04-17 20:54:10 +08:00
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// WIN32: define void @"\01?medium_arg@@YAXUMedium@@@Z"(%struct.Medium* byval align 4 %s)
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// WIN64: define void @"\01?medium_arg@@YAXUMedium@@@Z"(i64 %s.coerce)
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void small_arg_with_ctor(SmallWithCtor s) {}
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2013-08-15 14:47:53 +08:00
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// LINUX-LABEL: define void @_Z19small_arg_with_ctor13SmallWithCtor(%struct.SmallWithCtor* byval align 4 %s)
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2013-04-17 20:54:10 +08:00
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// WIN32: define void @"\01?small_arg_with_ctor@@YAXUSmallWithCtor@@@Z"(%struct.SmallWithCtor* byval align 4 %s)
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// WIN64: define void @"\01?small_arg_with_ctor@@YAXUSmallWithCtor@@@Z"(i32 %s.coerce)
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2013-06-21 20:45:15 +08:00
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// Test that dtors are invoked in the callee.
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void small_arg_with_dtor(SmallWithDtor s) {}
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2014-02-01 08:04:45 +08:00
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// WIN32: define void @"\01?small_arg_with_dtor@@YAXUSmallWithDtor@@@Z"(<{ %struct.SmallWithDtor }>* inalloca) {{.*}} {
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// WIN32: call x86_thiscallcc void @"\01??1SmallWithDtor@@QAE@XZ"
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2013-06-21 20:45:15 +08:00
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// WIN32: }
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2014-02-01 08:04:45 +08:00
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// WIN64: define void @"\01?small_arg_with_dtor@@YAXUSmallWithDtor@@@Z"(%struct.SmallWithDtor* %s) {{.*}} {
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// WIN64: call void @"\01??1SmallWithDtor@@QEAA@XZ"
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2013-06-21 20:45:15 +08:00
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// WIN64: }
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// Test that references aren't destroyed in the callee.
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void ref_small_arg_with_dtor(const SmallWithDtor &s) { }
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// WIN32: define void @"\01?ref_small_arg_with_dtor@@YAXABUSmallWithDtor@@@Z"(%struct.SmallWithDtor* %s) {{.*}} {
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// WIN32-NOT: call x86_thiscallcc void @"\01??1SmallWithDtor@@QAE@XZ"
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// WIN32: }
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// Test that temporaries passed by reference are destroyed in the caller.
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void temporary_ref_with_dtor() {
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ref_small_arg_with_dtor(SmallWithDtor());
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}
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// WIN32: define void @"\01?temporary_ref_with_dtor@@YAXXZ"() {{.*}} {
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// WIN32: call x86_thiscallcc %struct.SmallWithDtor* @"\01??0SmallWithDtor@@QAE@XZ"
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// WIN32: call void @"\01?ref_small_arg_with_dtor@@YAXABUSmallWithDtor@@@Z"
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// WIN32: call x86_thiscallcc void @"\01??1SmallWithDtor@@QAE@XZ"
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// WIN32: }
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void takes_two_by_val_with_dtor(SmallWithDtor a, SmallWithDtor b);
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void eh_cleanup_arg_with_dtor() {
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takes_two_by_val_with_dtor(SmallWithDtor(), SmallWithDtor());
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}
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// When exceptions are off, we don't have any cleanups. See
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// microsoft-abi-exceptions.cpp for these cleanups.
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// WIN32: define void @"\01?eh_cleanup_arg_with_dtor@@YAXXZ"() {{.*}} {
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// WIN32: call x86_thiscallcc %struct.SmallWithDtor* @"\01??0SmallWithDtor@@QAE@XZ"
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// WIN32: call x86_thiscallcc %struct.SmallWithDtor* @"\01??0SmallWithDtor@@QAE@XZ"
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// WIN32: call void @"\01?takes_two_by_val_with_dtor@@YAXUSmallWithDtor@@0@Z"
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// WIN32-NOT: call x86_thiscallcc void @"\01??1SmallWithDtor@@QAE@XZ"
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// WIN32: }
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2013-04-17 20:54:10 +08:00
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void small_arg_with_vftable(SmallWithVftable s) {}
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2013-08-15 14:47:53 +08:00
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// LINUX-LABEL: define void @_Z22small_arg_with_vftable16SmallWithVftable(%struct.SmallWithVftable* %s)
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2014-02-01 08:04:45 +08:00
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// WIN32: define void @"\01?small_arg_with_vftable@@YAXUSmallWithVftable@@@Z"(<{ %struct.SmallWithVftable }>* inalloca)
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// WIN64: define void @"\01?small_arg_with_vftable@@YAXUSmallWithVftable@@@Z"(%struct.SmallWithVftable* %s)
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2013-04-17 20:54:10 +08:00
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void medium_arg_with_copy_ctor(MediumWithCopyCtor s) {}
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2013-08-15 14:47:53 +08:00
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// LINUX-LABEL: define void @_Z25medium_arg_with_copy_ctor18MediumWithCopyCtor(%struct.MediumWithCopyCtor* %s)
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2014-02-01 08:04:45 +08:00
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// WIN32: define void @"\01?medium_arg_with_copy_ctor@@YAXUMediumWithCopyCtor@@@Z"(<{ %struct.MediumWithCopyCtor }>* inalloca)
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// WIN64: define void @"\01?medium_arg_with_copy_ctor@@YAXUMediumWithCopyCtor@@@Z"(%struct.MediumWithCopyCtor* %s)
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2013-04-17 20:54:10 +08:00
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void big_arg(Big s) {}
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2013-08-15 14:47:53 +08:00
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// LINUX-LABEL: define void @_Z7big_arg3Big(%struct.Big* byval align 4 %s)
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2013-04-17 20:54:10 +08:00
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// WIN32: define void @"\01?big_arg@@YAXUBig@@@Z"(%struct.Big* byval align 4 %s)
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// WIN64: define void @"\01?big_arg@@YAXUBig@@@Z"(%struct.Big* %s)
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// FIXME: Add WIN64 tests. Currently, even the method manglings are wrong (sic!).
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class Class {
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public:
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Small thiscall_method_small() { return Small(); }
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// LINUX: define {{.*}} void @_ZN5Class21thiscall_method_smallEv(%struct.Small* noalias sret %agg.result, %class.Class* %this)
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// WIN32: define {{.*}} x86_thiscallcc void @"\01?thiscall_method_small@Class@@QAE?AUSmall@@XZ"(%struct.Small* noalias sret %agg.result, %class.Class* %this)
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SmallWithCtor thiscall_method_small_with_ctor() { return SmallWithCtor(); }
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// LINUX: define {{.*}} void @_ZN5Class31thiscall_method_small_with_ctorEv(%struct.SmallWithCtor* noalias sret %agg.result, %class.Class* %this)
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// WIN32: define {{.*}} x86_thiscallcc void @"\01?thiscall_method_small_with_ctor@Class@@QAE?AUSmallWithCtor@@XZ"(%struct.SmallWithCtor* noalias sret %agg.result, %class.Class* %this)
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Small __cdecl cdecl_method_small() { return Small(); }
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// LINUX: define {{.*}} void @_ZN5Class18cdecl_method_smallEv(%struct.Small* noalias sret %agg.result, %class.Class* %this)
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2014-02-01 06:54:50 +08:00
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// WIN32: define {{.*}} void @"\01?cdecl_method_small@Class@@QAA?AUSmall@@XZ"(%struct.Small* noalias sret %agg.result, %class.Class* %this)
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2013-04-17 20:54:10 +08:00
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Big __cdecl cdecl_method_big() { return Big(); }
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// LINUX: define {{.*}} void @_ZN5Class16cdecl_method_bigEv(%struct.Big* noalias sret %agg.result, %class.Class* %this)
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// WIN32: define {{.*}} void @"\01?cdecl_method_big@Class@@QAA?AUBig@@XZ"(%struct.Big* noalias sret %agg.result, %class.Class* %this)
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void thiscall_method_arg(Empty s) {}
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// LINUX: define {{.*}} void @_ZN5Class19thiscall_method_argE5Empty(%class.Class* %this)
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// WIN32: define {{.*}} void @"\01?thiscall_method_arg@Class@@QAEXUEmpty@@@Z"(%class.Class* %this, %struct.Empty* byval align 4 %s)
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void thiscall_method_arg(EmptyWithCtor s) {}
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// LINUX: define {{.*}} void @_ZN5Class19thiscall_method_argE13EmptyWithCtor(%class.Class* %this)
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// WIN32: define {{.*}} void @"\01?thiscall_method_arg@Class@@QAEXUEmptyWithCtor@@@Z"(%class.Class* %this, %struct.EmptyWithCtor* byval align 4 %s)
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void thiscall_method_arg(Small s) {}
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// LINUX: define {{.*}} void @_ZN5Class19thiscall_method_argE5Small(%class.Class* %this, %struct.Small* byval align 4 %s)
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// WIN32: define {{.*}} void @"\01?thiscall_method_arg@Class@@QAEXUSmall@@@Z"(%class.Class* %this, %struct.Small* byval align 4 %s)
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void thiscall_method_arg(SmallWithCtor s) {}
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// LINUX: define {{.*}} void @_ZN5Class19thiscall_method_argE13SmallWithCtor(%class.Class* %this, %struct.SmallWithCtor* byval align 4 %s)
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// WIN32: define {{.*}} void @"\01?thiscall_method_arg@Class@@QAEXUSmallWithCtor@@@Z"(%class.Class* %this, %struct.SmallWithCtor* byval align 4 %s)
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void thiscall_method_arg(Big s) {}
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// LINUX: define {{.*}} void @_ZN5Class19thiscall_method_argE3Big(%class.Class* %this, %struct.Big* byval align 4 %s)
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// WIN32: define {{.*}} void @"\01?thiscall_method_arg@Class@@QAEXUBig@@@Z"(%class.Class* %this, %struct.Big* byval align 4 %s)
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};
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void use_class() {
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Class c;
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c.thiscall_method_small();
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c.thiscall_method_small_with_ctor();
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c.cdecl_method_small();
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c.cdecl_method_big();
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c.thiscall_method_arg(Empty());
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c.thiscall_method_arg(EmptyWithCtor());
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c.thiscall_method_arg(Small());
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c.thiscall_method_arg(SmallWithCtor());
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c.thiscall_method_arg(Big());
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}
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2013-06-21 20:45:15 +08:00
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struct X {
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X();
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~X();
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};
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void g(X) {
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}
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2014-02-01 08:04:45 +08:00
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// WIN32: define void @"\01?g@@YAXUX@@@Z"(<{ %struct.X }>* inalloca) {{.*}} {
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// WIN32: call x86_thiscallcc void @"\01??1X@@QAE@XZ"(%struct.X* {{.*}})
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2013-06-21 20:45:15 +08:00
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// WIN32: }
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void f() {
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g(X());
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}
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// WIN32: define void @"\01?f@@YAXXZ"() {{.*}} {
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// WIN32-NOT: call {{.*}} @"\01??1X@@QAE@XZ"
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// WIN32: }
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2014-02-01 08:04:45 +08:00
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namespace test2 {
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// We used to crash on this due to the mixture of POD byval and non-trivial
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// byval.
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struct NonTrivial {
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NonTrivial();
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NonTrivial(const NonTrivial &o);
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~NonTrivial();
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int a;
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};
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struct POD { int b; };
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int foo(NonTrivial a, POD b);
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void bar() {
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POD b;
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b.b = 13;
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int c = foo(NonTrivial(), b);
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}
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// WIN32-LABEL: define void @"\01?bar@test2@@YAXXZ"() {{.*}} {
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2014-03-09 15:09:06 +08:00
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// WIN32: %[[argmem:[^ ]*]] = alloca inalloca [[argmem_ty:<{ %"struct.test2::NonTrivial", %"struct.test2::POD" }>]]
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2014-02-01 08:04:45 +08:00
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// WIN32: getelementptr inbounds [[argmem_ty]]* %[[argmem]], i32 0, i32 1
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// WIN32: call void @llvm.memcpy
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// WIN32: getelementptr inbounds [[argmem_ty]]* %[[argmem]], i32 0, i32 0
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// WIN32: call x86_thiscallcc %"struct.test2::NonTrivial"* @"\01??0NonTrivial@test2@@QAE@XZ"
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// WIN32: call i32 @"\01?foo@test2@@YAHUNonTrivial@1@UPOD@1@@Z"([[argmem_ty]]* inalloca %argmem)
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// WIN32: ret void
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// WIN32: }
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}
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2014-04-01 00:12:47 +08:00
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// We would crash here because the later definition of ForwardDeclare1 results
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// in a different IR type for the value we want to store. However, the alloca's
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// type will use the argument type selected by fn1.
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struct ForwardDeclare1;
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typedef void (*FnPtr1)(ForwardDeclare1);
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void fn1(FnPtr1, SmallWithDtor) {}
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struct ForwardDeclare1 {};
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void fn2() { fn1(0, SmallWithDtor()); };
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// WIN32-LABEL: define void @"\01?fn2@@YAXXZ"
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// WIN32: %[[argmem:[^ ]*]] = alloca inalloca [[argmem_ty:<{ {}\*, %struct.SmallWithDtor }>]]
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2014-04-01 00:30:00 +08:00
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// WIN32: %[[gep1:[^ ]*]] = getelementptr inbounds [[argmem_ty]]* %[[argmem]], i32 0, i32 1
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// WIN32: call x86_thiscallcc %struct.SmallWithDtor* @"\01??0SmallWithDtor@@QAE@XZ"(%struct.SmallWithDtor* %[[gep1]])
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// WIN32: %[[gep2:[^ ]*]] = getelementptr inbounds [[argmem_ty]]* %[[argmem]], i32 0, i32 0
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// WIN32: %[[addr:[^ ]*]] = bitcast {}** %[[gep2]] to void [[dst_ty:\(%struct.ForwardDeclare1\*\)\*]]*
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2014-04-01 00:12:47 +08:00
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// WIN32: store void [[dst_ty]] null, void [[dst_ty]]* %[[addr]], align 4
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// WIN32: call void @"\01?fn1@@YAXP6AXUForwardDeclare1@@@ZUSmallWithDtor@@@Z"([[argmem_ty]]* inalloca %[[argmem]])
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