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
14 lines
863 B
C++
14 lines
863 B
C++
// RUN: %clang_cc1 %s -triple=amdgcn-amd-amdhsa -std=c++11 -emit-llvm -o - | FileCheck %s
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struct A {
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virtual void f();
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virtual void g();
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virtual void h();
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};
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void A::f() {}
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// CHECK: @_ZTV1A ={{.*}} unnamed_addr addrspace(1) constant { [5 x ptr addrspace(1)] } { [5 x ptr addrspace(1)] [ptr addrspace(1) null, ptr addrspace(1) @_ZTI1A, ptr addrspace(1) addrspacecast (ptr @_ZN1A1fEv to ptr addrspace(1)), ptr addrspace(1) addrspacecast (ptr @_ZN1A1gEv to ptr addrspace(1)), ptr addrspace(1) addrspacecast (ptr @_ZN1A1hEv to ptr addrspace(1))]
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// CHECK: @_ZTS1A ={{.*}} constant [3 x i8] c"1A\00", align 1
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// CHECK: @_ZTI1A ={{.*}} addrspace(1) constant { ptr addrspace(1), ptr addrspace(1) } { ptr addrspace(1) getelementptr inbounds (ptr addrspace(1), ptr addrspace(1) @_ZTVN10__cxxabiv117__class_type_infoE, i64 2), ptr addrspace(1) @_ZTS1A }, align 8
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