derek.holloway
7502bf64a4
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77 lines
2.8 KiB
C++
77 lines
2.8 KiB
C++
// RUN: %clang_cc1 %s -fno-rtti -triple=i386-pc-win32 -emit-llvm -o - | FileCheck %s
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// For now, just make sure x86_64 doesn't crash.
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// RUN: %clang_cc1 %s -fno-rtti -triple=x86_64-pc-win32 -emit-llvm -o %t
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struct A {
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virtual void f();
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};
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struct B {
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virtual void f();
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};
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struct C : A, B {};
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struct D : virtual C {
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D();
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~D();
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virtual void f();
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void g();
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int xxx;
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};
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D::D() {} // Forces vftable emission.
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// CHECK-LABEL: define linkonce_odr dso_local x86_thiscallcc void @"?f@D@@$4PPPPPPPM@A@AEXXZ"
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// Note that the vtordisp is applied before really adjusting to D*.
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// CHECK: %[[ECX:.*]] = load ptr, ptr %{{.*}}
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// CHECK: %[[VTORDISP_PTR_i8:.*]] = getelementptr inbounds i8, ptr %[[ECX]], i32 -4
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// CHECK: %[[VTORDISP:.*]] = load i32, ptr %[[VTORDISP_PTR_i8]]
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// CHECK: %[[VTORDISP_NEG:.*]] = sub i32 0, %[[VTORDISP]]
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// CHECK: %[[ADJUSTED_i8:.*]] = getelementptr i8, ptr %[[ECX]], i32 %[[VTORDISP_NEG]]
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// CHECK: call x86_thiscallcc void @"?f@D@@UAEXXZ"(ptr noundef %[[ADJUSTED_i8]])
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// CHECK: ret void
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// CHECK-LABEL: define linkonce_odr dso_local x86_thiscallcc void @"?f@D@@$4PPPPPPPI@3AEXXZ"
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// CHECK: %[[ECX:.*]] = load ptr, ptr %{{.*}}
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// CHECK: %[[VTORDISP_PTR_i8:.*]] = getelementptr inbounds i8, ptr %[[ECX]], i32 -8
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// CHECK: %[[VTORDISP:.*]] = load i32, ptr %[[VTORDISP_PTR_i8]]
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// CHECK: %[[VTORDISP_NEG:.*]] = sub i32 0, %[[VTORDISP]]
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// CHECK: %[[VTORDISP_ADJUSTED_i8:.*]] = getelementptr i8, ptr %[[ECX]], i32 %[[VTORDISP_NEG]]
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// CHECK: %[[ADJUSTED_i8:.*]] = getelementptr i8, ptr %[[VTORDISP_ADJUSTED_i8]], i32 -4
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// CHECK: call x86_thiscallcc void @"?f@D@@UAEXXZ"(ptr noundef %[[ADJUSTED_i8]])
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// CHECK: ret void
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struct E : virtual A {
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virtual void f();
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~E();
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};
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struct F {
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virtual void z();
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};
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struct G : virtual F, virtual E {
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int ggg;
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G();
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~G();
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};
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G::G() {} // Forces vftable emission.
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// CHECK-LABEL: define linkonce_odr dso_local x86_thiscallcc void @"?f@E@@$R4BA@M@PPPPPPPM@7AEXXZ"(ptr
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// CHECK: %[[ECX:.*]] = load ptr, ptr %{{.*}}
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// CHECK: %[[VTORDISP_PTR_i8:.*]] = getelementptr inbounds i8, ptr %[[ECX]], i32 -4
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// CHECK: %[[VTORDISP:.*]] = load i32, ptr %[[VTORDISP_PTR_i8]]
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// CHECK: %[[VTORDISP_NEG:.*]] = sub i32 0, %[[VTORDISP]]
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// CHECK: %[[VTORDISP_ADJUSTED_i8:.*]] = getelementptr i8, ptr %[[ECX]], i32 %[[VTORDISP_NEG]]
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// CHECK: %[[VBPTR_i8:.*]] = getelementptr inbounds i8, ptr %[[VTORDISP_ADJUSTED_i8]], i32 -16
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// CHECK: %[[VBTABLE:.*]] = load ptr, ptr %[[VBPTR_i8]]
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// CHECK: %[[VBOFFSET_PTR:.*]] = getelementptr inbounds i32, ptr %[[VBTABLE]], i32 3
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// CHECK: %[[VBASE_OFFSET:.*]] = load i32, ptr %[[VBOFFSET_PTR]]
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// CHECK: %[[VBASE:.*]] = getelementptr inbounds i8, ptr %[[VBPTR_i8]], i32 %[[VBASE_OFFSET]]
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// CHECK: %[[ARG_i8:.*]] = getelementptr i8, ptr %[[VBASE]], i32 8
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// CHECK: call x86_thiscallcc void @"?f@E@@UAEXXZ"(ptr noundef %[[ARG_i8]])
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// CHECK: ret void
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