Author: phosek
Date: Wed Nov 22 11:50:17 2017
New Revision: 318866
URL: http://llvm.org/viewvc/llvm-project?rev=318866&view=rev
Log:
Revert "[CodeGen] Fix vtable not receiving hidden visibility when using
push(visibility)"
This reverts commit r318853: tests are failing on Windows bots
Removed:
cfe/trunk/test/CodeGen/push-hidden-visibility-subclass.cpp
Modified:
cfe/trunk/lib/CodeGen/CGDecl.cpp
cfe/trunk/lib/CodeGen/CGVTT.cpp
cfe/trunk/lib/CodeGen/CGVTables.cpp
cfe/trunk/lib/CodeGen/CodeGenModule.cpp
cfe/trunk/lib/CodeGen/CodeGenModule.h
cfe/trunk/lib/CodeGen/ItaniumCXXABI.cpp
Modified: cfe/trunk/lib/CodeGen/CGDecl.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDecl.cpp?rev=318866&r1=318865&r2=318866&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGDecl.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGDecl.cpp Wed Nov 22 11:50:17 2017
@@ -240,7 +240,7 @@ llvm::Constant *CodeGenModule::getOrCrea
getModule(), LTy, Ty.isConstant(getContext()), Linkage, Init, Name,
nullptr, llvm::GlobalVariable::NotThreadLocal, TargetAS);
GV->setAlignment(getContext().getDeclAlign(&D).getQuantity());
- setGlobalVisibility(GV, &D, ForDefinition);
+ setGlobalVisibility(GV, &D);
if (supportsCOMDAT() && GV->isWeakForLinker())
GV->setComdat(TheModule.getOrInsertComdat(GV->getName()));
Modified: cfe/trunk/lib/CodeGen/CGVTT.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGVTT.cpp?rev=318866&r1=318865&r2=318866&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGVTT.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGVTT.cpp Wed Nov 22 11:50:17 2017
@@ -100,7 +100,7 @@ CodeGenVTables::EmitVTTDefinition(llvm::
VTT->setComdat(CGM.getModule().getOrInsertComdat(VTT->getName()));
// Set the right visibility.
- CGM.setGlobalVisibility(VTT, RD, ForDefinition);
+ CGM.setGlobalVisibility(VTT, RD);
}
llvm::GlobalVariable *CodeGenVTables::GetAddrOfVTT(const CXXRecordDecl *RD) {
Modified: cfe/trunk/lib/CodeGen/CGVTables.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGVTables.cpp?rev=318866&r1=318865&r2=318866&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGVTables.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGVTables.cpp Wed Nov 22 11:50:17 2017
@@ -51,7 +51,7 @@ llvm::Constant *CodeGenModule::GetAddrOf
static void setThunkVisibility(CodeGenModule &CGM, const CXXMethodDecl *MD,
const ThunkInfo &Thunk, llvm::Function *Fn) {
- CGM.setGlobalVisibility(Fn, MD, ForDefinition);
+ CGM.setGlobalVisibility(Fn, MD);
}
static void setThunkProperties(CodeGenModule &CGM, const ThunkInfo &Thunk,
@@ -730,7 +730,7 @@ CodeGenVTables::GenerateConstructionVTab
// Create the variable that will hold the construction vtable.
llvm::GlobalVariable *VTable =
CGM.CreateOrReplaceCXXRuntimeVariable(Name, VTType, Linkage);
- CGM.setGlobalVisibility(VTable, RD, ForDefinition);
+ CGM.setGlobalVisibility(VTable, RD);
// V-tables are always unnamed_addr.
VTable->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global);
Modified: cfe/trunk/lib/CodeGen/CodeGenModule.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenModule.cpp?rev=318866&r1=318865&r2=318866&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CodeGenModule.cpp (original)
+++ cfe/trunk/lib/CodeGen/CodeGenModule.cpp Wed Nov 22 11:50:17 2017
@@ -662,8 +662,7 @@ llvm::ConstantInt *CodeGenModule::getSiz
}
void CodeGenModule::setGlobalVisibility(llvm::GlobalValue *GV,
- const NamedDecl *D,
- ForDefinition_t IsForDefinition) const
{
+ const NamedDecl *D) const {
// Internal definitions always have default visibility.
if (GV->hasLocalLinkage()) {
GV->setVisibility(llvm::GlobalValue::DefaultVisibility);
@@ -672,8 +671,7 @@ void CodeGenModule::setGlobalVisibility(
// Set visibility for definitions.
LinkageInfo LV = D->getLinkageAndVisibility();
- if (LV.isVisibilityExplicit() ||
- (IsForDefinition && !GV->hasAvailableExternallyLinkage()))
+ if (LV.isVisibilityExplicit() || !GV->hasAvailableExternallyLinkage())
GV->setVisibility(GetLLVMVisibility(LV.getVisibility()));
}
@@ -1054,7 +1052,7 @@ void CodeGenModule::SetLLVMFunctionAttri
void CodeGenModule::SetCommonAttributes(const Decl *D,
llvm::GlobalValue *GV) {
if (const auto *ND = dyn_cast_or_null<NamedDecl>(D))
- setGlobalVisibility(GV, ND, ForDefinition);
+ setGlobalVisibility(GV, ND);
else
GV->setVisibility(llvm::GlobalValue::DefaultVisibility);
@@ -1110,8 +1108,8 @@ void CodeGenModule::SetInternalFunctionA
setNonAliasAttributes(D, F);
}
-static void setLinkageForGV(llvm::GlobalValue *GV,
- const NamedDecl *ND) {
+static void setLinkageAndVisibilityForGV(llvm::GlobalValue *GV,
+ const NamedDecl *ND) {
// Set linkage and visibility in case we never see a definition.
LinkageInfo LV = ND->getLinkageAndVisibility();
if (!isExternallyVisible(LV.getLinkage())) {
@@ -1127,6 +1125,10 @@ static void setLinkageForGV(llvm::Global
// separate linkage types for this.
GV->setLinkage(llvm::GlobalValue::ExternalWeakLinkage);
}
+
+ // Set visibility on a declaration only if it's explicit.
+ if (LV.isVisibilityExplicit())
+ GV->setVisibility(CodeGenModule::GetLLVMVisibility(LV.getVisibility()));
}
}
@@ -1195,8 +1197,7 @@ void CodeGenModule::SetFunctionAttribute
// Only a few attributes are set on declarations; these may later be
// overridden by a definition.
- setLinkageForGV(F, FD);
- setGlobalVisibility(F, FD, NotForDefinition);
+ setLinkageAndVisibilityForGV(F, FD);
if (FD->getAttr<PragmaClangTextSectionAttr>()) {
F->addFnAttr("implicit-section-name");
@@ -2433,8 +2434,7 @@ CodeGenModule::GetOrCreateLLVMGlobal(Str
GV->setAlignment(getContext().getDeclAlign(D).getQuantity());
- setLinkageForGV(GV, D);
- setGlobalVisibility(GV, D, NotForDefinition);
+ setLinkageAndVisibilityForGV(GV, D);
if (D->getTLSKind()) {
if (D->getTLSKind() == VarDecl::TLS_Dynamic)
@@ -3253,7 +3253,7 @@ void CodeGenModule::EmitGlobalFunctionDe
setFunctionDLLStorageClass(GD, Fn);
// FIXME: this is redundant with part of setFunctionDefinitionAttributes
- setGlobalVisibility(Fn, D, ForDefinition);
+ setGlobalVisibility(Fn, D);
MaybeHandleStaticInExternC(D, Fn);
@@ -3849,7 +3849,7 @@ ConstantAddress CodeGenModule::GetAddrOf
getModule(), Type, Constant, Linkage, InitialValue, Name.c_str(),
/*InsertBefore=*/nullptr, llvm::GlobalVariable::NotThreadLocal,
TargetAS);
if (emitter) emitter->finalize(GV);
- setGlobalVisibility(GV, VD, ForDefinition);
+ setGlobalVisibility(GV, VD);
GV->setAlignment(Align.getQuantity());
if (supportsCOMDAT() && GV->isWeakForLinker())
GV->setComdat(TheModule.getOrInsertComdat(GV->getName()));
Modified: cfe/trunk/lib/CodeGen/CodeGenModule.h
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenModule.h?rev=318866&r1=318865&r2=318866&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CodeGenModule.h (original)
+++ cfe/trunk/lib/CodeGen/CodeGenModule.h Wed Nov 22 11:50:17 2017
@@ -710,8 +710,7 @@ public:
llvm::ConstantInt *getSize(CharUnits numChars);
/// Set the visibility for the given LLVM GlobalValue.
- void setGlobalVisibility(llvm::GlobalValue *GV, const NamedDecl *D,
- ForDefinition_t IsForDefinition) const;
+ void setGlobalVisibility(llvm::GlobalValue *GV, const NamedDecl *D) const;
/// Set the TLS mode for the given LLVM GlobalValue for the thread-local
/// variable declaration D.
Modified: cfe/trunk/lib/CodeGen/ItaniumCXXABI.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/ItaniumCXXABI.cpp?rev=318866&r1=318865&r2=318866&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/ItaniumCXXABI.cpp (original)
+++ cfe/trunk/lib/CodeGen/ItaniumCXXABI.cpp Wed Nov 22 11:50:17 2017
@@ -1527,7 +1527,7 @@ void ItaniumCXXABI::emitVTableDefinition
VTable->setComdat(CGM.getModule().getOrInsertComdat(VTable->getName()));
// Set the right visibility.
- CGM.setGlobalVisibility(VTable, RD, ForDefinition);
+ CGM.setGlobalVisibility(VTable, RD);
// Use pointer alignment for the vtable. Otherwise we would align them based
// on the size of the initializer which doesn't make sense as only single
@@ -1637,7 +1637,6 @@ llvm::GlobalVariable *ItaniumCXXABI::get
VTable = CGM.CreateOrReplaceCXXRuntimeVariable(
Name, VTableType, llvm::GlobalValue::ExternalLinkage);
VTable->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global);
- CGM.setGlobalVisibility(VTable, RD, NotForDefinition);
if (RD->hasAttr<DLLImportAttr>())
VTable->setDLLStorageClass(llvm::GlobalValue::DLLImportStorageClass);
Removed: cfe/trunk/test/CodeGen/push-hidden-visibility-subclass.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/push-hidden-visibility-subclass.cpp?rev=318865&view=auto
==============================================================================
--- cfe/trunk/test/CodeGen/push-hidden-visibility-subclass.cpp (original)
+++ cfe/trunk/test/CodeGen/push-hidden-visibility-subclass.cpp (removed)
@@ -1,21 +0,0 @@
-// RUN: %clang -S -emit-llvm -o %t %s
-// RUN: FileCheck --input-file=%t %s
-
-#pragma GCC visibility push(hidden)
-
-struct Base {
- virtual ~Base() = default;
- virtual void* Alloc() = 0;
-};
-
-class Child : public Base {
-public:
- Child() = default;
- void* Alloc();
-};
-
-void test() {
- Child x;
-}
-
-// CHECK: @_ZTV5Child = external hidden unnamed_addr constant
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