forked from OSchip/llvm-project
158 lines
7.7 KiB
C++
158 lines
7.7 KiB
C++
// RUN: %clang_cc1 -fno-rtti -emit-llvm -triple=i386-pc-win32 %s -o - | FileCheck %s --check-prefix=CHECK32
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// RUN: %clang_cc1 -fno-rtti -emit-llvm -triple=x86_64-pc-win32 %s -o - | FileCheck %s --check-prefix=CHECK64
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struct S {
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int x, y, z;
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};
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// U is not trivially copyable, and requires inalloca to pass by value.
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struct U {
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int u;
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U();
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~U();
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U(const U &);
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};
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struct C {
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virtual void foo();
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virtual int bar(int, double);
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virtual S baz(int);
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virtual S qux(U);
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virtual S __fastcall zed(U);
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};
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namespace {
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struct D {
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virtual void foo();
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};
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}
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void f() {
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void (C::*ptr)();
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ptr = &C::foo;
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ptr = &C::foo; // Don't crash trying to define the thunk twice :)
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int (C::*ptr2)(int, double);
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ptr2 = &C::bar;
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S (C::*ptr3)(int);
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ptr3 = &C::baz;
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void (D::*ptr4)();
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ptr4 = &D::foo;
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S (C::*ptr5)(U);
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ptr5 = &C::qux;
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S (__fastcall C::*ptr6)(U);
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ptr6 = &C::zed;
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// CHECK32-LABEL: define void @"\01?f@@YAXXZ"()
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// CHECK32: store i8* bitcast (void (%struct.C*)* @"\01??_9C@@$BA@AE" to i8*), i8** %ptr
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// CHECK32: store i8* bitcast (i32 (%struct.C*, i32, double)* @"\01??_9C@@$B3AE" to i8*), i8** %ptr2
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// CHECK32: store i8* bitcast (void (%struct.C*, %struct.S*, i32)* @"\01??_9C@@$B7AE" to i8*), i8** %ptr3
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// CHECK32: store i8* bitcast (void (%"struct.(anonymous namespace)::D"*)* @"\01??_9D@?A@@$BA@AE" to i8*), i8** %ptr4
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// CHECK32: }
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//
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// CHECK64-LABEL: define void @"\01?f@@YAXXZ"()
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// CHECK64: store i8* bitcast (void (%struct.C*)* @"\01??_9C@@$BA@AA" to i8*), i8** %ptr
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// CHECK64: store i8* bitcast (i32 (%struct.C*, i32, double)* @"\01??_9C@@$B7AA" to i8*), i8** %ptr2
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// CHECK64: store i8* bitcast (void (%struct.C*, %struct.S*, i32)* @"\01??_9C@@$BBA@AA" to i8*), i8** %ptr3
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// CHECK64: store i8* bitcast (void (%"struct.(anonymous namespace)::D"*)* @"\01??_9D@?A@@$BA@AA" to i8*), i8** %ptr
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// CHECK64: }
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}
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// Thunk for calling the 1st virtual function in C with no parameters.
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// CHECK32-LABEL: define linkonce_odr x86_thiscallcc void @"\01??_9C@@$BA@AE"(%struct.C* %this) unnamed_addr
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// CHECK32: [[VPTR:%.*]] = getelementptr inbounds void (%struct.C*)** %{{.*}}, i64 0
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// CHECK32: [[CALLEE:%.*]] = load void (%struct.C*)** [[VPTR]]
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// CHECK32: call x86_thiscallcc void [[CALLEE]](%struct.C* %{{.*}})
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// CHECK32: ret void
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// CHECK32: }
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//
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// CHECK64-LABEL: define linkonce_odr void @"\01??_9C@@$BA@AA"(%struct.C* %this) unnamed_addr
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// CHECK64: [[VPTR:%.*]] = getelementptr inbounds void (%struct.C*)** %{{.*}}, i64 0
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// CHECK64: [[CALLEE:%.*]] = load void (%struct.C*)** [[VPTR]]
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// CHECK64: call void [[CALLEE]](%struct.C* %{{.*}})
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// CHECK64: ret void
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// CHECK64: }
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// Thunk for calling the 2nd virtual function in C, taking int and double as parameters, returning int.
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// CHECK32-LABEL: define linkonce_odr x86_thiscallcc i32 @"\01??_9C@@$B3AE"(%struct.C* %this, i32, double) unnamed_addr
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// CHECK32: [[VPTR:%.*]] = getelementptr inbounds i32 (%struct.C*, i32, double)** %{{.*}}, i64 1
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// CHECK32: [[CALLEE:%.*]] = load i32 (%struct.C*, i32, double)** [[VPTR]]
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// CHECK32: [[CALL:%.*]] = call x86_thiscallcc i32 [[CALLEE]](%struct.C* %{{.*}}, i32 %{{.*}}, double %{{.*}})
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// CHECK32: ret i32 [[CALL]]
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// CHECK32: }
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//
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// CHECK64-LABEL: define linkonce_odr i32 @"\01??_9C@@$B7AA"(%struct.C* %this, i32, double) unnamed_addr
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// CHECK64: [[VPTR:%.*]] = getelementptr inbounds i32 (%struct.C*, i32, double)** %{{.*}}, i64 1
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// CHECK64: [[CALLEE:%.*]] = load i32 (%struct.C*, i32, double)** [[VPTR]]
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// CHECK64: [[CALL:%.*]] = call i32 [[CALLEE]](%struct.C* %{{.*}}, i32 %{{.*}}, double %{{.*}})
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// CHECK64: ret i32 [[CALL]]
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// CHECK64: }
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// Thunk for calling the 3rd virtual function in C, taking an int parameter, returning a struct.
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// CHECK32-LABEL: define linkonce_odr x86_thiscallcc void @"\01??_9C@@$B7AE"(%struct.C* %this, %struct.S* noalias sret %agg.result, i32) unnamed_addr
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// CHECK32: [[VPTR:%.*]] = getelementptr inbounds void (%struct.C*, %struct.S*, i32)** %{{.*}}, i64 2
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// CHECK32: [[CALLEE:%.*]] = load void (%struct.C*, %struct.S*, i32)** [[VPTR]]
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// CHECK32: call x86_thiscallcc void [[CALLEE]](%struct.C* %{{.*}}, %struct.S* sret %agg.result, i32 %{{.*}})
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// CHECK32: ret void
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// CHECK32: }
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//
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// CHECK64-LABEL: define linkonce_odr void @"\01??_9C@@$BBA@AA"(%struct.C* %this, %struct.S* noalias sret %agg.result, i32) unnamed_addr
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// CHECK64: [[VPTR:%.*]] = getelementptr inbounds void (%struct.C*, %struct.S*, i32)** %{{.*}}, i64 2
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// CHECK64: [[CALLEE:%.*]] = load void (%struct.C*, %struct.S*, i32)** [[VPTR]]
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// CHECK64: call void [[CALLEE]](%struct.C* %{{.*}}, %struct.S* sret %agg.result, i32 %{{.*}})
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// CHECK64: ret void
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// CHECK64: }
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// Thunk for calling the virtual function in internal class D.
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// CHECK32-LABEL: define internal x86_thiscallcc void @"\01??_9D@?A@@$BA@AE"(%"struct.(anonymous namespace)::D"* %this) unnamed_addr
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// CHECK32: [[VPTR:%.*]] = getelementptr inbounds void (%"struct.(anonymous namespace)::D"*)** %{{.*}}, i64 0
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// CHECK32: [[CALLEE:%.*]] = load void (%"struct.(anonymous namespace)::D"*)** [[VPTR]]
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// CHECK32: call x86_thiscallcc void [[CALLEE]](%"struct.(anonymous namespace)::D"* %{{.*}})
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// CHECK32: ret void
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// CHECK32: }
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//
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// CHECK64-LABEL: define internal void @"\01??_9D@?A@@$BA@AA"(%"struct.(anonymous namespace)::D"* %this) unnamed_addr
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// CHECK64: [[VPTR:%.*]] = getelementptr inbounds void (%"struct.(anonymous namespace)::D"*)** %{{.*}}, i64 0
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// CHECK64: [[CALLEE:%.*]] = load void (%"struct.(anonymous namespace)::D"*)** [[VPTR]]
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// CHECK64: call void [[CALLEE]](%"struct.(anonymous namespace)::D"* %{{.*}})
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// CHECK64: ret void
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// CHECK64: }
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// Thunk for calling the fourth virtual function in C, taking a struct parameter
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// and returning a struct.
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// CHECK32-LABEL: define linkonce_odr x86_thiscallcc %struct.S* @"\01??_9C@@$BM@AE"(%struct.C* %this, <{ %struct.S*, %struct.U }>* inalloca) unnamed_addr
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// CHECK32: [[VPTR:%.*]] = getelementptr inbounds %struct.S* (%struct.C*, <{ %struct.S*, %struct.U }>*)** %{{.*}}, i64 3
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// CHECK32: [[CALLEE:%.*]] = load %struct.S* (%struct.C*, <{ %struct.S*, %struct.U }>*)** [[VPTR]]
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// CHECK32: [[CALL:%.*]] = musttail call x86_thiscallcc %struct.S* [[CALLEE]](%struct.C* %{{.*}}, <{ %struct.S*, %struct.U }>* inalloca %{{.*}})
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// CHECK32-NEXT: ret %struct.S* [[CALL]]
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// CHECK32: }
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//
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// CHECK64-LABEL: define linkonce_odr void @"\01??_9C@@$BBI@AA"(%struct.C* %this, %struct.S* noalias sret %agg.result, %struct.U*) unnamed_addr
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// CHECK64: [[VPTR:%.*]] = getelementptr inbounds void (%struct.C*, %struct.S*, %struct.U*)** %{{.*}}, i64 3
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// CHECK64: [[CALLEE:%.*]] = load void (%struct.C*, %struct.S*, %struct.U*)** [[VPTR]]
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// CHECK64: call void [[CALLEE]](%struct.C* %{{.*}}, %struct.S* sret %agg.result, %struct.U* %{{.*}})
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// CHECK64: ret void
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// CHECK64: }
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// Thunk for calling the fifth virtual function in C, taking a struct parameter
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// and returning a struct.
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// CHECK32-LABEL: define linkonce_odr x86_fastcallcc void @"\01??_9C@@$BBA@AE"(%struct.C* inreg %this, %struct.S* inreg noalias sret %agg.result, <{ %struct.U }>* inalloca) unnamed_addr
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// CHECK32: [[VPTR:%.*]] = getelementptr inbounds void (%struct.C*, %struct.S*, <{ %struct.U }>*)** %{{.*}}, i64 4
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// CHECK32: [[CALLEE:%.*]] = load void (%struct.C*, %struct.S*, <{ %struct.U }>*)** [[VPTR]]
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// CHECK32: musttail call x86_fastcallcc void [[CALLEE]](%struct.C* inreg %{{.*}}, %struct.S* inreg sret %{{.*}}, <{ %struct.U }>* inalloca %{{.*}})
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// CHECK32-NEXT: ret void
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// CHECK32: }
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//
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// CHECK64-LABEL: define linkonce_odr void @"\01??_9C@@$BCA@AA"(%struct.C* %this, %struct.S* noalias sret %agg.result, %struct.U*) unnamed_addr
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// CHECK64: [[VPTR:%.*]] = getelementptr inbounds void (%struct.C*, %struct.S*, %struct.U*)** %{{.*}}, i64 4
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// CHECK64: [[CALLEE:%.*]] = load void (%struct.C*, %struct.S*, %struct.U*)** [[VPTR]]
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// CHECK64: call void [[CALLEE]](%struct.C* %{{.*}}, %struct.S* sret %agg.result, %struct.U* %{{.*}})
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// CHECK64: ret void
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// CHECK64: }
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