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8acdcf4016
All data structures and values associated with handling virtual functions / inheritance, as well as RTTI, are globals and thus can only reside in the global address space. This was not taken fully taken into account because for most targets, global & generic appear to coincide. However, on targets where global & generic ASes differ (e.g. AMDGPU), this was problematic, since it led to the generation of invalid bitcasts (which would trigger asserts in Debug) and less than optimal code. This patch does two things: ensures that vtables, vptrs, vtts, typeinfo are generated in the right AS, and populated accordingly; removes a bunch of bitcasts which look like left-overs from the typed ptr era. Reviewed By: yxsamliu Differential Revision: https://reviews.llvm.org/D153092
211 lines
6.2 KiB
C++
211 lines
6.2 KiB
C++
// RUN: %clang_cc1 %s -triple=amdgcn-amd-amdhsa -std=c++11 -emit-llvm-only -fdump-vtable-layouts 2>&1 | FileCheck %s
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// A collection of big class hierarchies and their vtables.
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namespace Test1 {
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class C0
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{
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};
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class C1
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: virtual public C0
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{
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int k0;
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};
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class C2
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: public C0
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, virtual public C1
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{
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int k0;
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};
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class C3
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: virtual public C0
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, virtual public C1
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, public C2
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{
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int k0;
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int k1;
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int k2;
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int k3;
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};
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class C4
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: public C2
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, virtual public C3
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, public C0
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{
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int k0;
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};
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class C5
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: public C0
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, virtual public C4
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, public C2
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, public C1
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, virtual public C3
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{
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int k0;
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};
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class C6
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: virtual public C3
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, public C0
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, public C5
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, public C4
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, public C1
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{
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int k0;
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};
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class C7
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: virtual public C5
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, virtual public C6
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, virtual public C3
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, public C4
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, virtual public C2
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{
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int k0;
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int k1;
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};
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class C8
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: public C7
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, public C5
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, public C3
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, virtual public C4
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, public C1
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, public C2
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{
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int k0;
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int k1;
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};
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// CHECK: Vtable for 'Test1::C9' (87 entries).
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// CHECK-NEXT: 0 | vbase_offset (344)
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// CHECK-NEXT: 1 | vbase_offset (312)
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// CHECK-NEXT: 2 | vbase_offset (184)
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// CHECK-NEXT: 3 | vbase_offset (168)
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// CHECK-NEXT: 4 | vbase_offset (120)
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// CHECK-NEXT: 5 | vbase_offset (48)
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// CHECK-NEXT: 6 | vbase_offset (148)
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// CHECK-NEXT: 7 | vbase_offset (152)
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// CHECK-NEXT: 8 | offset_to_top (0)
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// CHECK-NEXT: 9 | Test1::C9 RTTI
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// CHECK-NEXT: -- (Test1::C2, 0) vtable address --
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// CHECK-NEXT: -- (Test1::C9, 0) vtable address --
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// CHECK-NEXT: 10 | void Test1::C9::f()
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// CHECK-NEXT: 11 | vbase_offset (104)
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// CHECK-NEXT: 12 | vbase_offset (132)
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// CHECK-NEXT: 13 | vbase_offset (136)
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// CHECK-NEXT: 14 | offset_to_top (-16)
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// CHECK-NEXT: 15 | Test1::C9 RTTI
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// CHECK-NEXT: -- (Test1::C2, 16) vtable address --
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// CHECK-NEXT: -- (Test1::C4, 16) vtable address --
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// CHECK-NEXT: 16 | vbase_offset (72)
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// CHECK-NEXT: 17 | vbase_offset (120)
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// CHECK-NEXT: 18 | vbase_offset (100)
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// CHECK-NEXT: 19 | vbase_offset (104)
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// CHECK-NEXT: 20 | offset_to_top (-48)
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// CHECK-NEXT: 21 | Test1::C9 RTTI
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// CHECK-NEXT: -- (Test1::C2, 48) vtable address --
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// CHECK-NEXT: -- (Test1::C5, 48) vtable address --
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// CHECK-NEXT: -- (Test1::C6, 48) vtable address --
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// CHECK-NEXT: 22 | vbase_offset (84)
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// CHECK-NEXT: 23 | offset_to_top (-64)
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// CHECK-NEXT: 24 | Test1::C9 RTTI
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// CHECK-NEXT: -- (Test1::C1, 64) vtable address --
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// CHECK-NEXT: 25 | vbase_offset (32)
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// CHECK-NEXT: 26 | vbase_offset (60)
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// CHECK-NEXT: 27 | vbase_offset (64)
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// CHECK-NEXT: 28 | offset_to_top (-88)
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// CHECK-NEXT: 29 | Test1::C9 RTTI
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// CHECK-NEXT: -- (Test1::C2, 88) vtable address --
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// CHECK-NEXT: -- (Test1::C4, 88) vtable address --
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// CHECK-NEXT: 30 | vbase_offset (44)
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// CHECK-NEXT: 31 | offset_to_top (-104)
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// CHECK-NEXT: 32 | Test1::C9 RTTI
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// CHECK-NEXT: -- (Test1::C1, 104) vtable address --
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// CHECK-NEXT: 33 | vbase_offset (28)
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// CHECK-NEXT: 34 | vbase_offset (32)
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// CHECK-NEXT: 35 | offset_to_top (-120)
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// CHECK-NEXT: 36 | Test1::C9 RTTI
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// CHECK-NEXT: -- (Test1::C2, 120) vtable address --
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// CHECK-NEXT: -- (Test1::C3, 120) vtable address --
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// CHECK-NEXT: 37 | vbase_offset (-4)
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// CHECK-NEXT: 38 | offset_to_top (-152)
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// CHECK-NEXT: 39 | Test1::C9 RTTI
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// CHECK-NEXT: -- (Test1::C1, 152) vtable address --
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// CHECK-NEXT: 40 | vbase_offset (-48)
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// CHECK-NEXT: 41 | vbase_offset (-20)
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// CHECK-NEXT: 42 | vbase_offset (-16)
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// CHECK-NEXT: 43 | offset_to_top (-168)
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// CHECK-NEXT: 44 | Test1::C9 RTTI
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// CHECK-NEXT: -- (Test1::C2, 168) vtable address --
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// CHECK-NEXT: -- (Test1::C4, 168) vtable address --
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// CHECK-NEXT: 45 | vbase_offset (160)
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// CHECK-NEXT: 46 | vbase_offset (-136)
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// CHECK-NEXT: 47 | vbase_offset (-16)
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// CHECK-NEXT: 48 | vbase_offset (128)
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// CHECK-NEXT: 49 | vbase_offset (-64)
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// CHECK-NEXT: 50 | vbase_offset (-36)
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// CHECK-NEXT: 51 | vbase_offset (-32)
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// CHECK-NEXT: 52 | offset_to_top (-184)
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// CHECK-NEXT: 53 | Test1::C9 RTTI
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// CHECK-NEXT: -- (Test1::C2, 184) vtable address --
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// CHECK-NEXT: -- (Test1::C4, 184) vtable address --
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// CHECK-NEXT: -- (Test1::C7, 184) vtable address --
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// CHECK-NEXT: -- (Test1::C8, 184) vtable address --
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// CHECK-NEXT: 54 | vbase_offset (-88)
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// CHECK-NEXT: 55 | vbase_offset (-40)
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// CHECK-NEXT: 56 | vbase_offset (-60)
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// CHECK-NEXT: 57 | vbase_offset (-56)
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// CHECK-NEXT: 58 | offset_to_top (-208)
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// CHECK-NEXT: 59 | Test1::C9 RTTI
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// CHECK-NEXT: -- (Test1::C2, 208) vtable address --
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// CHECK-NEXT: -- (Test1::C5, 208) vtable address --
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// CHECK-NEXT: 60 | vbase_offset (-76)
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// CHECK-NEXT: 61 | offset_to_top (-224)
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// CHECK-NEXT: 62 | Test1::C9 RTTI
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// CHECK-NEXT: -- (Test1::C1, 224) vtable address --
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// CHECK-NEXT: 63 | vbase_offset (-92)
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// CHECK-NEXT: 64 | vbase_offset (-88)
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// CHECK-NEXT: 65 | offset_to_top (-240)
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// CHECK-NEXT: 66 | Test1::C9 RTTI
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// CHECK-NEXT: -- (Test1::C2, 240) vtable address --
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// CHECK-NEXT: -- (Test1::C3, 240) vtable address --
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// CHECK-NEXT: 67 | vbase_offset (-124)
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// CHECK-NEXT: 68 | offset_to_top (-272)
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// CHECK-NEXT: 69 | Test1::C9 RTTI
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// CHECK-NEXT: -- (Test1::C1, 272) vtable address --
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// CHECK-NEXT: 70 | vbase_offset (-140)
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// CHECK-NEXT: 71 | vbase_offset (-136)
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// CHECK-NEXT: 72 | offset_to_top (-288)
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// CHECK-NEXT: 73 | Test1::C9 RTTI
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// CHECK-NEXT: -- (Test1::C2, 288) vtable address --
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// CHECK-NEXT: 74 | vbase_offset (-192)
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// CHECK-NEXT: 75 | vbase_offset (-144)
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// CHECK-NEXT: 76 | vbase_offset (-164)
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// CHECK-NEXT: 77 | vbase_offset (-160)
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// CHECK-NEXT: 78 | offset_to_top (-312)
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// CHECK-NEXT: 79 | Test1::C9 RTTI
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// CHECK-NEXT: -- (Test1::C2, 312) vtable address --
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// CHECK-NEXT: -- (Test1::C5, 312) vtable address --
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// CHECK-NEXT: 80 | vbase_offset (-180)
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// CHECK-NEXT: 81 | offset_to_top (-328)
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// CHECK-NEXT: 82 | Test1::C9 RTTI
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// CHECK-NEXT: -- (Test1::C1, 328) vtable address --
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// CHECK-NEXT: 83 | vbase_offset (-196)
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// CHECK-NEXT: 84 | vbase_offset (-192)
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// CHECK-NEXT: 85 | offset_to_top (-344)
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// CHECK-NEXT: 86 | Test1::C9 RTTI
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class C9
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: virtual public C6
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, public C2
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, public C4
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, virtual public C8
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{
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int k0;
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int k1;
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int k2;
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int k3;
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virtual void f();
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};
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void C9::f() { }
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}
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