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[OPENMP]Do not emit RTTI descriptor for NVPTX devices.

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Need to disable emission of RTTI descriptors for NVPTX devices to be
able to use dynamic classes without unresolved symbols at link stage.
This commit is contained in:
Alexey Bataev 2020-01-16 17:57:10 -05:00
parent 9b549f26fa
commit 25b542c61f
2 changed files with 6 additions and 3 deletions
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4
clang/lib/CodeGen/CodeGenModule.cpp
View File

@ -5762,7 +5762,9 @@ llvm::Constant *CodeGenModule::GetAddrOfRTTIDescriptor(QualType Ty,
// Return a bogus pointer if RTTI is disabled, unless it's for EH.
// FIXME: should we even be calling this method if RTTI is disabled
// and it's not for EH?
if ((!ForEH && !getLangOpts().RTTI) || getLangOpts().CUDAIsDevice)
if ((!ForEH && !getLangOpts().RTTI) || getLangOpts().CUDAIsDevice ||
(getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice &&
getTriple().isNVPTX()))
return llvm::Constant::getNullValue(Int8PtrTy);
if (ForEH && Ty->isObjCObjectPointerType() &&

5
clang/test/OpenMP/nvptx_target_pure_deleted_codegen.cpp
View File

@ -1,6 +1,6 @@
// Test target codegen - host bc file has to be created first.
// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=nvptx64-nvidia-cuda -emit-llvm-bc %s -o %t-ppc-host.bc
// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple nvptx64-unknown-unknown -fopenmp-targets=nvptx64-nvidia-cuda -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o - -fno-rtti | FileCheck %s
// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple nvptx64-unknown-unknown -fopenmp-targets=nvptx64-nvidia-cuda -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o - | FileCheck %s
// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple i386-unknown-unknown -fopenmp-targets=nvptx-nvidia-cuda -emit-llvm-bc %s -o %t-x86-host.bc
// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple nvptx-unknown-unknown -fopenmp-targets=nvptx-nvidia-cuda -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-x86-host.bc -o - -fno-rtti | FileCheck %s
// RUN: %clang_cc1 -verify -fopenmp -fexceptions -fcxx-exceptions -x c++ -triple nvptx-unknown-unknown -fopenmp-targets=nvptx-nvidia-cuda -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-x86-host.bc -o - -fno-rtti | FileCheck %s
@ -9,9 +9,10 @@
#ifndef HEADER
#define HEADER
// CHECK-NOT: class_type_info
// CHECK-DAG: @_ZTV7Derived = linkonce_odr hidden unnamed_addr constant { [3 x i8*] } { [3 x i8*] [i8* null, i8* null, i8* bitcast (void (%class.Derived*)* @_ZN7Derived3fooEv to i8*)] }
// CHECK-DAG: @_ZTV4Base = linkonce_odr hidden unnamed_addr constant { [3 x i8*] } zeroinitializer
// CHECK-NOT: class_type_info
class Base {
public:
virtual void foo() = 0;