[clang] 62501bc - [NFC][CUDA][HIP] rework mangling number for aux target
Yaxun Liu via cfe-commits
cfe-commits at lists.llvm.org
Wed May 4 10:05:47 PDT 2022
Author: Yaxun (Sam) Liu
Date: 2022-05-04T13:05:33-04:00
New Revision: 62501bc45a2fb4980725baccf48576cf9b45cd4d
URL: https://github.com/llvm/llvm-project/commit/62501bc45a2fb4980725baccf48576cf9b45cd4d
DIFF: https://github.com/llvm/llvm-project/commit/62501bc45a2fb4980725baccf48576cf9b45cd4d.diff
LOG: [NFC][CUDA][HIP] rework mangling number for aux target
CUDA/HIP needs to mangle for aux target. When mangling for aux target,
the mangler should use mangling number for aux target. Previously
in https://reviews.llvm.org/D122734 a state was introduced in
ASTContext to let the mangler get mangling number for aux target
from ASTContext. This patch removes that state from ASTConext
and add an IsAux member to MangleContext to indicate that
the mangle context is for aux target. This reflects the reality that
the mangle context is created for mangling aux target and makes
ASTContext cleaner.
Reviewed by: Artem Belevich, Reid Kleckner
Differential Revision: https://reviews.llvm.org/D124842
Added:
Modified:
clang/include/clang/AST/ASTContext.h
clang/include/clang/AST/Mangle.h
clang/lib/AST/ASTContext.cpp
clang/lib/AST/ItaniumMangle.cpp
clang/lib/AST/MicrosoftMangle.cpp
clang/lib/CodeGen/CGCUDANV.cpp
Removed:
################################################################################
diff --git a/clang/include/clang/AST/ASTContext.h b/clang/include/clang/AST/ASTContext.h
index e04766f93d69e..fe22930e0fb11 100644
--- a/clang/include/clang/AST/ASTContext.h
+++ b/clang/include/clang/AST/ASTContext.h
@@ -677,9 +677,6 @@ class ASTContext : public RefCountedBase<ASTContext> {
~CUDAConstantEvalContextRAII() { Ctx.CUDAConstantEvalCtx = SavedCtx; }
};
- /// Current CUDA name mangling is for device name in host compilation.
- bool CUDAMangleDeviceNameInHostCompilation = false;
-
/// Returns the dynamic AST node parent map context.
ParentMapContext &getParentMapContext();
@@ -3044,7 +3041,8 @@ class ASTContext : public RefCountedBase<ASTContext> {
DeclaratorDecl *getDeclaratorForUnnamedTagDecl(const TagDecl *TD);
void setManglingNumber(const NamedDecl *ND, unsigned Number);
- unsigned getManglingNumber(const NamedDecl *ND) const;
+ unsigned getManglingNumber(const NamedDecl *ND,
+ bool ForAuxTarget = false) const;
void setStaticLocalNumber(const VarDecl *VD, unsigned Number);
unsigned getStaticLocalNumber(const VarDecl *VD) const;
diff --git a/clang/include/clang/AST/Mangle.h b/clang/include/clang/AST/Mangle.h
index 7d02f08e0120c..9bca97a611d08 100644
--- a/clang/include/clang/AST/Mangle.h
+++ b/clang/include/clang/AST/Mangle.h
@@ -54,6 +54,9 @@ class MangleContext {
ASTContext &Context;
DiagnosticsEngine &Diags;
const ManglerKind Kind;
+ /// For aux target. If true, uses mangling number for aux target from
+ /// ASTContext.
+ bool IsAux = false;
llvm::DenseMap<const BlockDecl*, unsigned> GlobalBlockIds;
llvm::DenseMap<const BlockDecl*, unsigned> LocalBlockIds;
@@ -62,10 +65,11 @@ class MangleContext {
public:
ManglerKind getKind() const { return Kind; }
- explicit MangleContext(ASTContext &Context,
- DiagnosticsEngine &Diags,
- ManglerKind Kind)
- : Context(Context), Diags(Diags), Kind(Kind) {}
+ bool isAux() const { return IsAux; }
+
+ explicit MangleContext(ASTContext &Context, DiagnosticsEngine &Diags,
+ ManglerKind Kind, bool IsAux = false)
+ : Context(Context), Diags(Diags), Kind(Kind), IsAux(IsAux) {}
virtual ~MangleContext() { }
@@ -172,8 +176,9 @@ class ItaniumMangleContext : public MangleContext {
public:
using DiscriminatorOverrideTy =
llvm::Optional<unsigned> (*)(ASTContext &, const NamedDecl *);
- explicit ItaniumMangleContext(ASTContext &C, DiagnosticsEngine &D)
- : MangleContext(C, D, MK_Itanium) {}
+ explicit ItaniumMangleContext(ASTContext &C, DiagnosticsEngine &D,
+ bool IsAux = false)
+ : MangleContext(C, D, MK_Itanium, IsAux) {}
virtual void mangleCXXVTable(const CXXRecordDecl *RD, raw_ostream &) = 0;
virtual void mangleCXXVTT(const CXXRecordDecl *RD, raw_ostream &) = 0;
@@ -201,17 +206,19 @@ class ItaniumMangleContext : public MangleContext {
return C->getKind() == MK_Itanium;
}
- static ItaniumMangleContext *create(ASTContext &Context,
- DiagnosticsEngine &Diags);
+ static ItaniumMangleContext *
+ create(ASTContext &Context, DiagnosticsEngine &Diags, bool IsAux = false);
static ItaniumMangleContext *create(ASTContext &Context,
DiagnosticsEngine &Diags,
- DiscriminatorOverrideTy Discriminator);
+ DiscriminatorOverrideTy Discriminator,
+ bool IsAux = false);
};
class MicrosoftMangleContext : public MangleContext {
public:
- explicit MicrosoftMangleContext(ASTContext &C, DiagnosticsEngine &D)
- : MangleContext(C, D, MK_Microsoft) {}
+ explicit MicrosoftMangleContext(ASTContext &C, DiagnosticsEngine &D,
+ bool IsAux = false)
+ : MangleContext(C, D, MK_Microsoft, IsAux) {}
/// Mangle vftable symbols. Only a subset of the bases along the path
/// to the vftable are included in the name. It's up to the caller to pick
@@ -270,8 +277,8 @@ class MicrosoftMangleContext : public MangleContext {
return C->getKind() == MK_Microsoft;
}
- static MicrosoftMangleContext *create(ASTContext &Context,
- DiagnosticsEngine &Diags);
+ static MicrosoftMangleContext *
+ create(ASTContext &Context, DiagnosticsEngine &Diags, bool IsAux = false);
};
class ASTNameGenerator {
diff --git a/clang/lib/AST/ASTContext.cpp b/clang/lib/AST/ASTContext.cpp
index c91839c50e95c..838669107b04c 100644
--- a/clang/lib/AST/ASTContext.cpp
+++ b/clang/lib/AST/ASTContext.cpp
@@ -11692,9 +11692,11 @@ MangleContext *ASTContext::createDeviceMangleContext(const TargetInfo &T) {
if (const auto *RD = dyn_cast<CXXRecordDecl>(ND))
return RD->getDeviceLambdaManglingNumber();
return llvm::None;
- });
+ },
+ /*IsAux=*/true);
case TargetCXXABI::Microsoft:
- return MicrosoftMangleContext::create(*this, getDiagnostics());
+ return MicrosoftMangleContext::create(*this, getDiagnostics(),
+ /*IsAux=*/true);
}
llvm_unreachable("Unsupported ABI");
}
@@ -11760,15 +11762,18 @@ void ASTContext::setManglingNumber(const NamedDecl *ND, unsigned Number) {
MangleNumbers[ND] = Number;
}
-unsigned ASTContext::getManglingNumber(const NamedDecl *ND) const {
+unsigned ASTContext::getManglingNumber(const NamedDecl *ND,
+ bool ForAuxTarget) const {
auto I = MangleNumbers.find(ND);
unsigned Res = I != MangleNumbers.end() ? I->second : 1;
- if (!LangOpts.CUDA || LangOpts.CUDAIsDevice)
- return Res;
-
// CUDA/HIP host compilation encodes host and device mangling numbers
// as lower and upper half of 32 bit integer.
- Res = CUDAMangleDeviceNameInHostCompilation ? Res >> 16 : Res & 0xFFFF;
+ if (LangOpts.CUDA && !LangOpts.CUDAIsDevice) {
+ Res = ForAuxTarget ? Res >> 16 : Res & 0xFFFF;
+ } else {
+ assert(!ForAuxTarget && "Only CUDA/HIP host compilation supports mangling "
+ "number for aux target");
+ }
return Res > 1 ? Res : 1;
}
diff --git a/clang/lib/AST/ItaniumMangle.cpp b/clang/lib/AST/ItaniumMangle.cpp
index f72789da526c1..8d90575385fc4 100644
--- a/clang/lib/AST/ItaniumMangle.cpp
+++ b/clang/lib/AST/ItaniumMangle.cpp
@@ -78,8 +78,8 @@ class ItaniumMangleContextImpl : public ItaniumMangleContext {
public:
explicit ItaniumMangleContextImpl(
ASTContext &Context, DiagnosticsEngine &Diags,
- DiscriminatorOverrideTy DiscriminatorOverride)
- : ItaniumMangleContext(Context, Diags),
+ DiscriminatorOverrideTy DiscriminatorOverride, bool IsAux = false)
+ : ItaniumMangleContext(Context, Diags, IsAux),
DiscriminatorOverride(DiscriminatorOverride) {}
/// @name Mangler Entry Points
@@ -143,7 +143,7 @@ class ItaniumMangleContextImpl : public ItaniumMangleContext {
// Use the canonical number for externally visible decls.
if (ND->isExternallyVisible()) {
- unsigned discriminator = getASTContext().getManglingNumber(ND);
+ unsigned discriminator = getASTContext().getManglingNumber(ND, isAux());
if (discriminator == 1)
return false;
disc = discriminator - 2;
@@ -1570,7 +1570,8 @@ void CXXNameMangler::mangleUnqualifiedName(
}
if (TD->isExternallyVisible()) {
- unsigned UnnamedMangle = getASTContext().getManglingNumber(TD);
+ unsigned UnnamedMangle =
+ getASTContext().getManglingNumber(TD, Context.isAux());
Out << "Ut";
if (UnnamedMangle > 1)
Out << UnnamedMangle - 2;
@@ -6531,16 +6532,20 @@ void ItaniumMangleContextImpl::mangleLambdaSig(const CXXRecordDecl *Lambda,
}
ItaniumMangleContext *ItaniumMangleContext::create(ASTContext &Context,
- DiagnosticsEngine &Diags) {
+ DiagnosticsEngine &Diags,
+ bool IsAux) {
return new ItaniumMangleContextImpl(
Context, Diags,
[](ASTContext &, const NamedDecl *) -> llvm::Optional<unsigned> {
return llvm::None;
- });
+ },
+ IsAux);
}
ItaniumMangleContext *
ItaniumMangleContext::create(ASTContext &Context, DiagnosticsEngine &Diags,
- DiscriminatorOverrideTy DiscriminatorOverride) {
- return new ItaniumMangleContextImpl(Context, Diags, DiscriminatorOverride);
+ DiscriminatorOverrideTy DiscriminatorOverride,
+ bool IsAux) {
+ return new ItaniumMangleContextImpl(Context, Diags, DiscriminatorOverride,
+ IsAux);
}
diff --git a/clang/lib/AST/MicrosoftMangle.cpp b/clang/lib/AST/MicrosoftMangle.cpp
index 7329f163d12c9..abe2b64f57278 100644
--- a/clang/lib/AST/MicrosoftMangle.cpp
+++ b/clang/lib/AST/MicrosoftMangle.cpp
@@ -147,7 +147,8 @@ class MicrosoftMangleContextImpl : public MicrosoftMangleContext {
SmallString<16> AnonymousNamespaceHash;
public:
- MicrosoftMangleContextImpl(ASTContext &Context, DiagnosticsEngine &Diags);
+ MicrosoftMangleContextImpl(ASTContext &Context, DiagnosticsEngine &Diags,
+ bool IsAux = false);
bool shouldMangleCXXName(const NamedDecl *D) override;
bool shouldMangleStringLiteral(const StringLiteral *SL) override;
void mangleCXXName(GlobalDecl GD, raw_ostream &Out) override;
@@ -221,7 +222,7 @@ class MicrosoftMangleContextImpl : public MicrosoftMangleContext {
// Use the canonical number for externally visible decls.
if (ND->isExternallyVisible()) {
- disc = getASTContext().getManglingNumber(ND);
+ disc = getASTContext().getManglingNumber(ND, isAux());
return true;
}
@@ -459,8 +460,9 @@ class MicrosoftCXXNameMangler {
}
MicrosoftMangleContextImpl::MicrosoftMangleContextImpl(ASTContext &Context,
- DiagnosticsEngine &Diags)
- : MicrosoftMangleContext(Context, Diags) {
+ DiagnosticsEngine &Diags,
+ bool IsAux)
+ : MicrosoftMangleContext(Context, Diags, IsAux) {
// To mangle anonymous namespaces, hash the path to the main source file. The
// path should be whatever (probably relative) path was passed on the command
// line. The goal is for the compiler to produce the same output regardless of
@@ -3944,7 +3946,8 @@ void MicrosoftMangleContextImpl::mangleStringLiteral(const StringLiteral *SL,
Mangler.getStream() << '@';
}
-MicrosoftMangleContext *
-MicrosoftMangleContext::create(ASTContext &Context, DiagnosticsEngine &Diags) {
- return new MicrosoftMangleContextImpl(Context, Diags);
+MicrosoftMangleContext *MicrosoftMangleContext::create(ASTContext &Context,
+ DiagnosticsEngine &Diags,
+ bool IsAux) {
+ return new MicrosoftMangleContextImpl(Context, Diags, IsAux);
}
diff --git a/clang/lib/CodeGen/CGCUDANV.cpp b/clang/lib/CodeGen/CGCUDANV.cpp
index 961f7e39c8f6a..4390228297d0e 100644
--- a/clang/lib/CodeGen/CGCUDANV.cpp
+++ b/clang/lib/CodeGen/CGCUDANV.cpp
@@ -24,7 +24,6 @@
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/ReplaceConstant.h"
#include "llvm/Support/Format.h"
-#include "llvm/Support/SaveAndRestore.h"
using namespace clang;
using namespace CodeGen;
@@ -261,8 +260,6 @@ llvm::FunctionType *CGNVCUDARuntime::getRegisterLinkedBinaryFnTy() const {
}
std::string CGNVCUDARuntime::getDeviceSideName(const NamedDecl *ND) {
- llvm::SaveAndRestore<bool> MangleAsDevice(
- CGM.getContext().CUDAMangleDeviceNameInHostCompilation, true);
GlobalDecl GD;
// D could be either a kernel or a variable.
if (auto *FD = dyn_cast<FunctionDecl>(ND))
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