471 lines
26 KiB
C++
471 lines
26 KiB
C++
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// RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple=i386-pc-linux | FileCheck -check-prefix LINUX %s
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// RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple=i386-pc-win32 -mconstructor-aliases -fno-rtti | FileCheck -check-prefix WIN32 %s
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// RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple=thumb-pc-win32 -mconstructor-aliases -fno-rtti | FileCheck -check-prefix WOA %s
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// RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple=x86_64-pc-win32 -mconstructor-aliases -fno-rtti | FileCheck -check-prefix WIN64 %s
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// RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple=aarch64-windows-msvc -mconstructor-aliases -fno-rtti | FileCheck -check-prefix WOA64 %s
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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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struct Multibyte {
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char a, b, c, d;
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};
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struct Packed {
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short a;
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int b;
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short c;
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};
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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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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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struct BigWithDtor {
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BigWithDtor();
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~BigWithDtor();
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int a, b, c, d, e, f;
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};
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struct BaseNoByval : Small {
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int bb;
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};
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struct SmallWithPrivate {
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private:
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int i;
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};
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// WIN32: declare dso_local 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, [3 x 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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// Returning structs that fit into a register.
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Small small_return() { return Small(); }
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// LINUX-LABEL: define{{.*}} void @_Z12small_returnv(%struct.Small* noalias sret(%struct.Small) align 4 %agg.result)
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// WIN32: define dso_local i32 @"?small_return@@YA?AUSmall@@XZ"()
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// WIN64: define dso_local i32 @"?small_return@@YA?AUSmall@@XZ"()
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// WOA64: define dso_local i64 @"?small_return@@YA?AUSmall@@XZ"()
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Medium medium_return() { return Medium(); }
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// LINUX-LABEL: define{{.*}} void @_Z13medium_returnv(%struct.Medium* noalias sret(%struct.Medium) align 4 %agg.result)
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// WIN32: define dso_local i64 @"?medium_return@@YA?AUMedium@@XZ"()
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// WIN64: define dso_local i64 @"?medium_return@@YA?AUMedium@@XZ"()
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// WOA64: define dso_local i64 @"?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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// LINUX-LABEL: define{{.*}} void @_Z20small_non_pod_returnv(%struct.SmallCpp11NotCpp03Pod* noalias sret(%struct.SmallCpp11NotCpp03Pod) align 4 %agg.result)
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// WIN32: define dso_local void @"?small_non_pod_return@@YA?AUSmallCpp11NotCpp03Pod@@XZ"(%struct.SmallCpp11NotCpp03Pod* noalias sret(%struct.SmallCpp11NotCpp03Pod) align 4 %agg.result)
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// WIN64: define dso_local void @"?small_non_pod_return@@YA?AUSmallCpp11NotCpp03Pod@@XZ"(%struct.SmallCpp11NotCpp03Pod* noalias sret(%struct.SmallCpp11NotCpp03Pod) align 4 %agg.result)
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// WOA64: define dso_local void @"?small_non_pod_return@@YA?AUSmallCpp11NotCpp03Pod@@XZ"(%struct.SmallCpp11NotCpp03Pod* inreg noalias sret(%struct.SmallCpp11NotCpp03Pod) align 4 %agg.result)
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SmallWithCtor small_with_ctor_return() { return SmallWithCtor(); }
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// LINUX-LABEL: define{{.*}} void @_Z22small_with_ctor_returnv(%struct.SmallWithCtor* noalias sret(%struct.SmallWithCtor) align 4 %agg.result)
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// WIN32: define dso_local void @"?small_with_ctor_return@@YA?AUSmallWithCtor@@XZ"(%struct.SmallWithCtor* noalias sret(%struct.SmallWithCtor) align 4 %agg.result)
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// WIN64: define dso_local void @"?small_with_ctor_return@@YA?AUSmallWithCtor@@XZ"(%struct.SmallWithCtor* noalias sret(%struct.SmallWithCtor) align 4 %agg.result)
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// FIXME: The 'sret' mark here doesn't seem to be enough to convince LLVM to
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// preserve the hidden sret pointer in R0 across the function.
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// WOA: define dso_local arm_aapcs_vfpcc void @"?small_with_ctor_return@@YA?AUSmallWithCtor@@XZ"(%struct.SmallWithCtor* noalias sret(%struct.SmallWithCtor) align 4 %agg.result)
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// WOA64: define dso_local void @"?small_with_ctor_return@@YA?AUSmallWithCtor@@XZ"(%struct.SmallWithCtor* inreg noalias sret(%struct.SmallWithCtor) align 4 %agg.result)
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SmallWithDtor small_with_dtor_return() { return SmallWithDtor(); }
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// LINUX-LABEL: define{{.*}} void @_Z22small_with_dtor_returnv(%struct.SmallWithDtor* noalias sret(%struct.SmallWithDtor) align 4 %agg.result)
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// WIN32: define dso_local void @"?small_with_dtor_return@@YA?AUSmallWithDtor@@XZ"(%struct.SmallWithDtor* noalias sret(%struct.SmallWithDtor) align 4 %agg.result)
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// WIN64: define dso_local void @"?small_with_dtor_return@@YA?AUSmallWithDtor@@XZ"(%struct.SmallWithDtor* noalias sret(%struct.SmallWithDtor) align 4 %agg.result)
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// WOA64: define dso_local void @"?small_with_dtor_return@@YA?AUSmallWithDtor@@XZ"(%struct.SmallWithDtor* inreg noalias sret(%struct.SmallWithDtor) align 4 %agg.result)
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SmallWithVftable small_with_vftable_return() { return SmallWithVftable(); }
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// LINUX-LABEL: define{{.*}} void @_Z25small_with_vftable_returnv(%struct.SmallWithVftable* noalias sret(%struct.SmallWithVftable) align 4 %agg.result)
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// WIN32: define dso_local void @"?small_with_vftable_return@@YA?AUSmallWithVftable@@XZ"(%struct.SmallWithVftable* noalias sret(%struct.SmallWithVftable) align 4 %agg.result)
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// WIN64: define dso_local void @"?small_with_vftable_return@@YA?AUSmallWithVftable@@XZ"(%struct.SmallWithVftable* noalias sret(%struct.SmallWithVftable) align 8 %agg.result)
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// WOA64: define dso_local void @"?small_with_vftable_return@@YA?AUSmallWithVftable@@XZ"(%struct.SmallWithVftable* inreg noalias sret(%struct.SmallWithVftable) align 8 %agg.result)
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MediumWithCopyCtor medium_with_copy_ctor_return() { return MediumWithCopyCtor(); }
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// LINUX-LABEL: define{{.*}} void @_Z28medium_with_copy_ctor_returnv(%struct.MediumWithCopyCtor* noalias sret(%struct.MediumWithCopyCtor) align 4 %agg.result)
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// WIN32: define dso_local void @"?medium_with_copy_ctor_return@@YA?AUMediumWithCopyCtor@@XZ"(%struct.MediumWithCopyCtor* noalias sret(%struct.MediumWithCopyCtor) align 4 %agg.result)
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// WIN64: define dso_local void @"?medium_with_copy_ctor_return@@YA?AUMediumWithCopyCtor@@XZ"(%struct.MediumWithCopyCtor* noalias sret(%struct.MediumWithCopyCtor) align 4 %agg.result)
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// WOA: define dso_local arm_aapcs_vfpcc void @"?medium_with_copy_ctor_return@@YA?AUMediumWithCopyCtor@@XZ"(%struct.MediumWithCopyCtor* noalias sret(%struct.MediumWithCopyCtor) align 4 %agg.result)
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// WOA64: define dso_local void @"?medium_with_copy_ctor_return@@YA?AUMediumWithCopyCtor@@XZ"(%struct.MediumWithCopyCtor* inreg noalias sret(%struct.MediumWithCopyCtor) align 4 %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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// LINUX-LABEL: define{{.*}} void @_Z10big_returnv(%struct.Big* noalias sret(%struct.Big) align 4 %agg.result)
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// WIN32: define dso_local void @"?big_return@@YA?AUBig@@XZ"(%struct.Big* noalias sret(%struct.Big) align 4 %agg.result)
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// WIN64: define dso_local void @"?big_return@@YA?AUBig@@XZ"(%struct.Big* noalias sret(%struct.Big) align 4 %agg.result)
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// WOA64: define dso_local void @"?big_return@@YA?AUBig@@XZ"(%struct.Big* noalias sret(%struct.Big) align 4 %agg.result)
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void small_arg(Small s) {}
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// LINUX-LABEL: define{{.*}} void @_Z9small_arg5Small(i32 %s.0)
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// WIN32: define dso_local void @"?small_arg@@YAXUSmall@@@Z"(i32 %s.0)
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// WIN64: define dso_local void @"?small_arg@@YAXUSmall@@@Z"(i32 %s.coerce)
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// WOA: define dso_local arm_aapcs_vfpcc void @"?small_arg@@YAXUSmall@@@Z"([1 x i32] %s.coerce)
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void medium_arg(Medium s) {}
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// LINUX-LABEL: define{{.*}} void @_Z10medium_arg6Medium(i32 %s.0, i32 %s.1)
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// WIN32: define dso_local void @"?medium_arg@@YAXUMedium@@@Z"(i32 %s.0, i32 %s.1)
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// WIN64: define dso_local void @"?medium_arg@@YAXUMedium@@@Z"(i64 %s.coerce)
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// WOA: define dso_local arm_aapcs_vfpcc void @"?medium_arg@@YAXUMedium@@@Z"([2 x i32] %s.coerce)
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void base_no_byval_arg(BaseNoByval s) {}
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// LINUX-LABEL: define{{.*}} void @_Z17base_no_byval_arg11BaseNoByval(%struct.BaseNoByval* byval(%struct.BaseNoByval) align 4 %s)
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// WIN32: define dso_local void @"?base_no_byval_arg@@YAXUBaseNoByval@@@Z"(i32 %s.0, i32 %s.1)
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// WIN64: define dso_local void @"?base_no_byval_arg@@YAXUBaseNoByval@@@Z"(i64 %s.coerce)
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// WOA: define dso_local arm_aapcs_vfpcc void @"?base_no_byval_arg@@YAXUBaseNoByval@@@Z"([2 x i32] %s.coerce)
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void small_arg_with_ctor(SmallWithCtor s) {}
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// LINUX-LABEL: define{{.*}} void @_Z19small_arg_with_ctor13SmallWithCtor(%struct.SmallWithCtor* byval(%struct.SmallWithCtor) align 4 %s)
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// WIN32: define dso_local void @"?small_arg_with_ctor@@YAXUSmallWithCtor@@@Z"(i32 %s.0)
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// WIN64: define dso_local void @"?small_arg_with_ctor@@YAXUSmallWithCtor@@@Z"(i32 %s.coerce)
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// WOA: define dso_local arm_aapcs_vfpcc void @"?small_arg_with_ctor@@YAXUSmallWithCtor@@@Z"([1 x i32] %s.coerce)
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// FIXME: We could coerce to a series of i32s here if we wanted to.
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void multibyte_arg(Multibyte s) {}
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// LINUX-LABEL: define{{.*}} void @_Z13multibyte_arg9Multibyte(%struct.Multibyte* byval(%struct.Multibyte) align 4 %s)
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// WIN32: define dso_local void @"?multibyte_arg@@YAXUMultibyte@@@Z"(%struct.Multibyte* byval(%struct.Multibyte) align 4 %s)
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// WIN64: define dso_local void @"?multibyte_arg@@YAXUMultibyte@@@Z"(i32 %s.coerce)
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// WOA: define dso_local arm_aapcs_vfpcc void @"?multibyte_arg@@YAXUMultibyte@@@Z"([1 x i32] %s.coerce)
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void packed_arg(Packed s) {}
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// LINUX-LABEL: define{{.*}} void @_Z10packed_arg6Packed(%struct.Packed* byval(%struct.Packed) align 4 %s)
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// WIN32: define dso_local void @"?packed_arg@@YAXUPacked@@@Z"(%struct.Packed* byval(%struct.Packed) align 4 %s)
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// WIN64: define dso_local void @"?packed_arg@@YAXUPacked@@@Z"(%struct.Packed* %s)
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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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// WIN32: define dso_local void @"?small_arg_with_dtor@@YAXUSmallWithDtor@@@Z"(<{ %struct.SmallWithDtor }>* inalloca %0) {{.*}} {
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// WIN32: call x86_thiscallcc void @"??1SmallWithDtor@@QAE@XZ"
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// WIN32: }
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// WIN64: define dso_local void @"?small_arg_with_dtor@@YAXUSmallWithDtor@@@Z"(i32 %s.coerce) {{.*}} {
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// WIN64: call void @"??1SmallWithDtor@@QEAA@XZ"
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// WIN64: }
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// WOA64: define dso_local void @"?small_arg_with_dtor@@YAXUSmallWithDtor@@@Z"(i64 %s.coerce) {{.*}} {
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// WOA64: call void @"??1SmallWithDtor@@QEAA@XZ"(%struct.SmallWithDtor* {{[^,]*}} %s)
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// WOA64: }
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// FIXME: MSVC incompatible!
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// WOA: define dso_local arm_aapcs_vfpcc void @"?small_arg_with_dtor@@YAXUSmallWithDtor@@@Z"(%struct.SmallWithDtor* %s) {{.*}} {
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// WOA: call arm_aapcs_vfpcc void @"??1SmallWithDtor@@QAA@XZ"(%struct.SmallWithDtor* {{[^,]*}} %s)
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// WOA: }
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// Test that the eligible non-aggregate is passed directly, but returned
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// indirectly on ARM64 Windows.
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// WOA64: define dso_local void @"?small_arg_with_private_member@@YA?AUSmallWithPrivate@@U1@@Z"(%struct.SmallWithPrivate* inreg noalias sret(%struct.SmallWithPrivate) align 4 %agg.result, i64 %s.coerce) {{.*}} {
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SmallWithPrivate small_arg_with_private_member(SmallWithPrivate s) { return s; }
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void call_small_arg_with_dtor() {
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small_arg_with_dtor(SmallWithDtor());
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}
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// WIN64-LABEL: define dso_local void @"?call_small_arg_with_dtor@@YAXXZ"()
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// WIN64: call %struct.SmallWithDtor* @"??0SmallWithDtor@@QEAA@XZ"
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// WIN64: call void @"?small_arg_with_dtor@@YAXUSmallWithDtor@@@Z"(i32 %{{.*}})
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// WIN64: ret void
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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 dso_local void @"?ref_small_arg_with_dtor@@YAXABUSmallWithDtor@@@Z"(%struct.SmallWithDtor* nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) %s) {{.*}} {
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// WIN32-NOT: call x86_thiscallcc void @"??1SmallWithDtor@@QAE@XZ"
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// WIN32: }
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// WIN64-LABEL: define dso_local void @"?ref_small_arg_with_dtor@@YAXAEBUSmallWithDtor@@@Z"(%struct.SmallWithDtor* nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) %s)
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void big_arg_with_dtor(BigWithDtor s) {}
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// WIN64-LABEL: define dso_local void @"?big_arg_with_dtor@@YAXUBigWithDtor@@@Z"(%struct.BigWithDtor* %s)
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// WIN64: call void @"??1BigWithDtor@@QEAA@XZ"
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// WIN64: }
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void call_big_arg_with_dtor() {
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big_arg_with_dtor(BigWithDtor());
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}
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// We can elide the copy of the temporary in the caller, because this object is
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// larger than 8 bytes and is passed indirectly.
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// WIN64-LABEL: define dso_local void @"?call_big_arg_with_dtor@@YAXXZ"()
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// WIN64: call %struct.BigWithDtor* @"??0BigWithDtor@@QEAA@XZ"
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// WIN64: call void @"?big_arg_with_dtor@@YAXUBigWithDtor@@@Z"(%struct.BigWithDtor* %{{.*}})
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// WIN64-NOT: call void @"??1BigWithDtor@@QEAA@XZ"
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// WIN64: ret void
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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());
|
||
|
|
}
|
||
|
|
// 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(%struct.Small) align 4 %agg.result, %class.Class* {{[^,]*}} %this)
|
||
|
|
// WIN32: define {{.*}} x86_thiscallcc void @"?thiscall_method_small@Class@@QAE?AUSmall@@XZ"(%class.Class* {{[^,]*}} %this, %struct.Small* noalias sret(%struct.Small) align 4 %agg.result)
|
||
|
|
// WIN64: define linkonce_odr dso_local void @"?thiscall_method_small@Class@@QEAA?AUSmall@@XZ"(%class.Class* {{[^,]*}} %this, %struct.Small* noalias sret(%struct.Small) align 4 %agg.result)
|
||
|
|
// WOA64: define linkonce_odr dso_local void @"?thiscall_method_small@Class@@QEAA?AUSmall@@XZ"(%class.Class* {{[^,]*}} %this, %struct.Small* inreg noalias sret(%struct.Small) align 4 %agg.result)
|
||
|
|
|
||
|
|
SmallWithCtor thiscall_method_small_with_ctor() { return SmallWithCtor(); }
|
||
|
|
// LINUX: define {{.*}} void @_ZN5Class31thiscall_method_small_with_ctorEv(%struct.SmallWithCtor* noalias sret(%struct.SmallWithCtor) align 4 %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(%struct.SmallWithCtor) align 4 %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(%struct.SmallWithCtor) align 4 %agg.result)
|
||
|
|
// WOA64: define linkonce_odr dso_local void @"?thiscall_method_small_with_ctor@Class@@QEAA?AUSmallWithCtor@@XZ"(%class.Class* {{[^,]*}} %this, %struct.SmallWithCtor* inreg noalias sret(%struct.SmallWithCtor) align 4 %agg.result)
|
||
|
|
|
||
|
|
Small __cdecl cdecl_method_small() { return Small(); }
|
||
|
|
// LINUX: define {{.*}} void @_ZN5Class18cdecl_method_smallEv(%struct.Small* noalias sret(%struct.Small) align 4 %agg.result, %class.Class* {{[^,]*}} %this)
|
||
|
|
// WIN32: define {{.*}} void @"?cdecl_method_small@Class@@QAA?AUSmall@@XZ"(%class.Class* {{[^,]*}} %this, %struct.Small* noalias sret(%struct.Small) align 4 %agg.result)
|
||
|
|
// WIN64: define linkonce_odr dso_local void @"?cdecl_method_small@Class@@QEAA?AUSmall@@XZ"(%class.Class* {{[^,]*}} %this, %struct.Small* noalias sret(%struct.Small) align 4 %agg.result)
|
||
|
|
|
||
|
|
Big __cdecl cdecl_method_big() { return Big(); }
|
||
|
|
// LINUX: define {{.*}} void @_ZN5Class16cdecl_method_bigEv(%struct.Big* noalias sret(%struct.Big) align 4 %agg.result, %class.Class* {{[^,]*}} %this)
|
||
|
|
// WIN32: define {{.*}} void @"?cdecl_method_big@Class@@QAA?AUBig@@XZ"(%class.Class* {{[^,]*}} %this, %struct.Big* noalias sret(%struct.Big) align 4 %agg.result)
|
||
|
|
// WIN64: define linkonce_odr dso_local void @"?cdecl_method_big@Class@@QEAA?AUBig@@XZ"(%class.Class* {{[^,]*}} %this, %struct.Big* noalias sret(%struct.Big) align 4 %agg.result)
|
||
|
|
// WOA64: define linkonce_odr dso_local void @"?cdecl_method_big@Class@@QEAA?AUBig@@XZ"(%class.Class* {{[^,]*}} %this, %struct.Big* inreg noalias sret(%struct.Big) align 4 %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 %{{[^,)]*}})
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// WIN32: declare dso_local void @"?h@C@pr30293@@UAAXUSmallWithDtor@@@Z"(<{ i8*, %struct.SmallWithDtor }>* inalloca)
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// WIN64-LABEL: define dso_local void @"?g@C@pr30293@@QEAAXXZ"(%"struct.pr30293::C"* {{[^,]*}} %this)
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// WIN64: declare dso_local void @"?h@C@pr30293@@UEAAXUSmallWithDtor@@@Z"(i8*, i32)
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}
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