thakis created this revision.
thakis added a reviewer: rnk.
Herald added subscribers: dexonsmith, kerbowa, kbarton, mgorny, nhaehnle,
jvesely, nemanjai.
thakis requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.
Reverts parts of https://reviews.llvm.org/D17183, but keeps the
resetDataLayout() API and adds an assert that checks that datalayout string and
user label prefix are in sync.
Approach 1 in https://reviews.llvm.org/D17183#2653279
Reduces number of TUs build for 'clang-format' from 689 to 575.
I also implemented approach 1 in D100764 <https://reviews.llvm.org/D100764>. If
someone feels motivated
to make us use DataLayout more, it's easy to revert this change here
and go with D100764 <https://reviews.llvm.org/D100764> instead. I don't plan on
doing more work in this
area though, so I prefer going with the smaller, more self-consistent change.
https://reviews.llvm.org/D100776
Files:
clang/include/clang/Basic/TargetInfo.h
clang/include/clang/CodeGen/BackendUtil.h
clang/lib/AST/Mangle.cpp
clang/lib/Basic/CMakeLists.txt
clang/lib/Basic/TargetInfo.cpp
clang/lib/Basic/Targets/AArch64.cpp
clang/lib/Basic/Targets/AMDGPU.cpp
clang/lib/Basic/Targets/ARM.cpp
clang/lib/Basic/Targets/PPC.h
clang/lib/Basic/Targets/X86.h
clang/lib/CodeGen/BackendUtil.cpp
clang/lib/CodeGen/CodeGenAction.cpp
clang/lib/CodeGen/ModuleBuilder.cpp
clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp
clang/lib/Frontend/InitPreprocessor.cpp
clang/unittests/AST/DeclTest.cpp
llvm/utils/gn/secondary/clang/lib/Basic/BUILD.gn
Index: llvm/utils/gn/secondary/clang/lib/Basic/BUILD.gn
===================================================================
--- llvm/utils/gn/secondary/clang/lib/Basic/BUILD.gn
+++ llvm/utils/gn/secondary/clang/lib/Basic/BUILD.gn
@@ -45,10 +45,10 @@
"//clang/include/clang/Sema:AttrParsedAttrKinds",
"//clang/include/clang/Sema:AttrSpellingListIndex",
"//llvm/include/llvm/Config:llvm-config",
- "//llvm/lib/IR",
"//llvm/lib/MC",
"//llvm/lib/Support",
]
+ assert_no_deps = [ "//llvm/lib/IR" ]
include_dirs = [ "." ]
sources = [
"Attributes.cpp",
Index: clang/unittests/AST/DeclTest.cpp
===================================================================
--- clang/unittests/AST/DeclTest.cpp
+++ clang/unittests/AST/DeclTest.cpp
@@ -75,7 +75,7 @@
auto AST =
tooling::buildASTFromCodeWithArgs(Code, {"-target", "i386-apple-darwin"});
ASTContext &Ctx = AST->getASTContext();
- assert(Ctx.getTargetInfo().getDataLayout().getGlobalPrefix() &&
+ assert(Ctx.getTargetInfo().getUserLabelPrefix() == StringRef("_") &&
"Expected target to have a global prefix");
DiagnosticsEngine &Diags = AST->getDiagnostics();
@@ -118,7 +118,7 @@
auto AST =
tooling::buildASTFromCodeWithArgs(Code, {"-target", "i386-apple-darwin"});
ASTContext &Ctx = AST->getASTContext();
- assert(Ctx.getTargetInfo().getDataLayout().getGlobalPrefix() &&
+ assert(Ctx.getTargetInfo().getUserLabelPrefix() == StringRef("_") &&
"Expected target to have a global prefix");
DiagnosticsEngine &Diags = AST->getDiagnostics();
Index: clang/lib/Frontend/InitPreprocessor.cpp
===================================================================
--- clang/lib/Frontend/InitPreprocessor.cpp
+++ clang/lib/Frontend/InitPreprocessor.cpp
@@ -985,8 +985,7 @@
DefineFastIntType(64, true, TI, Builder);
DefineFastIntType(64, false, TI, Builder);
- char UserLabelPrefix[2] = {TI.getDataLayout().getGlobalPrefix(), 0};
- Builder.defineMacro("__USER_LABEL_PREFIX__", UserLabelPrefix);
+ Builder.defineMacro("__USER_LABEL_PREFIX__", TI.getUserLabelPrefix());
if (LangOpts.FastMath || LangOpts.FiniteMathOnly)
Builder.defineMacro("__FINITE_MATH_ONLY__", "1");
Index: clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp
===================================================================
--- clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp
+++ clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp
@@ -166,7 +166,7 @@
Ctx = &Context;
VMContext.reset(new llvm::LLVMContext());
M.reset(new llvm::Module(MainFileName, *VMContext));
- M->setDataLayout(Ctx->getTargetInfo().getDataLayout());
+ M->setDataLayout(Ctx->getTargetInfo().getDataLayoutString());
Builder.reset(new CodeGen::CodeGenModule(
*Ctx, HeaderSearchOpts, PreprocessorOpts, CodeGenOpts, *M, Diags));
@@ -245,7 +245,7 @@
return;
M->setTargetTriple(Ctx.getTargetInfo().getTriple().getTriple());
- M->setDataLayout(Ctx.getTargetInfo().getDataLayout());
+ M->setDataLayout(Ctx.getTargetInfo().getDataLayoutString());
// PCH files don't have a signature field in the control block,
// but LLVM detects DWO CUs by looking for a non-zero DWO id.
@@ -295,7 +295,7 @@
llvm::SmallString<0> Buffer;
clang::EmitBackendOutput(
Diags, HeaderSearchOpts, CodeGenOpts, TargetOpts, LangOpts,
- Ctx.getTargetInfo().getDataLayout(), M.get(),
+ Ctx.getTargetInfo().getDataLayoutString(), M.get(),
BackendAction::Backend_EmitLL,
std::make_unique<llvm::raw_svector_ostream>(Buffer));
llvm::dbgs() << Buffer;
@@ -303,9 +303,9 @@
// Use the LLVM backend to emit the pch container.
clang::EmitBackendOutput(Diags, HeaderSearchOpts, CodeGenOpts, TargetOpts,
- LangOpts, Ctx.getTargetInfo().getDataLayout(),
- M.get(), BackendAction::Backend_EmitObj,
- std::move(OS));
+ LangOpts,
+ Ctx.getTargetInfo().getDataLayoutString(), M.get(),
+ BackendAction::Backend_EmitObj, std::move(OS));
// Free the memory for the temporary buffer.
llvm::SmallVector<char, 0> Empty;
Index: clang/lib/CodeGen/ModuleBuilder.cpp
===================================================================
--- clang/lib/CodeGen/ModuleBuilder.cpp
+++ clang/lib/CodeGen/ModuleBuilder.cpp
@@ -138,7 +138,7 @@
Ctx = &Context;
M->setTargetTriple(Ctx->getTargetInfo().getTriple().getTriple());
- M->setDataLayout(Ctx->getTargetInfo().getDataLayout());
+ M->setDataLayout(Ctx->getTargetInfo().getDataLayoutString());
const auto &SDKVersion = Ctx->getTargetInfo().getSDKVersion();
if (!SDKVersion.empty())
M->setSDKVersion(SDKVersion);
Index: clang/lib/CodeGen/CodeGenAction.cpp
===================================================================
--- clang/lib/CodeGen/CodeGenAction.cpp
+++ clang/lib/CodeGen/CodeGenAction.cpp
@@ -332,7 +332,7 @@
EmbedBitcode(getModule(), CodeGenOpts, llvm::MemoryBufferRef());
EmitBackendOutput(Diags, HeaderSearchOpts, CodeGenOpts, TargetOpts,
- LangOpts, C.getTargetInfo().getDataLayout(),
+ LangOpts, C.getTargetInfo().getDataLayoutString(),
getModule(), Action, std::move(AsmOutStream));
Ctx.setDiagnosticHandler(std::move(OldDiagnosticHandler));
@@ -1105,7 +1105,7 @@
EmitBackendOutput(Diagnostics, CI.getHeaderSearchOpts(), CodeGenOpts,
TargetOpts, CI.getLangOpts(),
- CI.getTarget().getDataLayout(), TheModule.get(), BA,
+ CI.getTarget().getDataLayoutString(), TheModule.get(), BA,
std::move(OS));
if (OptRecordFile)
OptRecordFile->keep();
Index: clang/lib/CodeGen/BackendUtil.cpp
===================================================================
--- clang/lib/CodeGen/BackendUtil.cpp
+++ clang/lib/CodeGen/BackendUtil.cpp
@@ -1600,7 +1600,7 @@
const CodeGenOptions &CGOpts,
const clang::TargetOptions &TOpts,
const LangOptions &LOpts,
- const llvm::DataLayout &TDesc, Module *M,
+ StringRef TDesc, Module *M,
BackendAction Action,
std::unique_ptr<raw_pwrite_stream> OS) {
@@ -1654,11 +1654,11 @@
// DataLayout.
if (AsmHelper.TM) {
std::string DLDesc = M->getDataLayout().getStringRepresentation();
- if (DLDesc != TDesc.getStringRepresentation()) {
+ if (DLDesc != TDesc) {
unsigned DiagID = Diags.getCustomDiagID(
DiagnosticsEngine::Error, "backend data layout '%0' does not match "
"expected target description '%1'");
- Diags.Report(DiagID) << DLDesc << TDesc.getStringRepresentation();
+ Diags.Report(DiagID) << DLDesc << TDesc;
}
}
}
Index: clang/lib/Basic/Targets/X86.h
===================================================================
--- clang/lib/Basic/Targets/X86.h
+++ clang/lib/Basic/Targets/X86.h
@@ -383,11 +383,13 @@
LongDoubleWidth = 96;
LongDoubleAlign = 32;
SuitableAlign = 128;
- resetDataLayout(Triple.isOSBinFormatMachO() ?
- "e-m:o-p:32:32-p270:32:32-p271:32:32-p272:64:64-f64:32:64-"
- "f80:32-n8:16:32-S128" :
- "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-f64:32:64-"
- "f80:32-n8:16:32-S128");
+ resetDataLayout(
+ Triple.isOSBinFormatMachO()
+ ? "e-m:o-p:32:32-p270:32:32-p271:32:32-p272:64:64-f64:32:64-"
+ "f80:32-n8:16:32-S128"
+ : "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-f64:32:64-"
+ "f80:32-n8:16:32-S128",
+ Triple.isOSBinFormatMachO() ? "_" : "");
SizeType = UnsignedInt;
PtrDiffType = SignedInt;
IntPtrType = SignedInt;
@@ -491,7 +493,7 @@
SizeType = UnsignedLong;
IntPtrType = SignedLong;
resetDataLayout("e-m:o-p:32:32-p270:32:32-p271:32:32-p272:64:64-f64:32:64-"
- "f80:128-n8:16:32-S128");
+ "f80:128-n8:16:32-S128", "_");
HasAlignMac68kSupport = true;
}
@@ -519,7 +521,8 @@
resetDataLayout(IsWinCOFF ? "e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:"
"64-i64:64-f80:32-n8:16:32-a:0:32-S32"
: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:"
- "64-i64:64-f80:32-n8:16:32-a:0:32-S32");
+ "64-i64:64-f80:32-n8:16:32-a:0:32-S32",
+ IsWinCOFF ? "_" : "");
}
};
@@ -568,7 +571,8 @@
this->WCharType = TargetInfo::UnsignedShort;
DoubleAlign = LongLongAlign = 64;
resetDataLayout("e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:"
- "32-n8:16:32-a:0:32-S32");
+ "32-n8:16:32-a:0:32-S32",
+ "_");
}
void getTargetDefines(const LangOptions &Opts,
@@ -863,7 +867,7 @@
if (T.isiOS())
UseSignedCharForObjCBool = false;
resetDataLayout("e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:"
- "16:32:64-S128");
+ "16:32:64-S128", "_");
}
bool handleTargetFeatures(std::vector<std::string> &Features,
Index: clang/lib/Basic/Targets/PPC.h
===================================================================
--- clang/lib/Basic/Targets/PPC.h
+++ clang/lib/Basic/Targets/PPC.h
@@ -468,7 +468,7 @@
BoolWidth = BoolAlign = 32; // XXX support -mone-byte-bool?
PtrDiffType = SignedInt; // for http://llvm.org/bugs/show_bug.cgi?id=15726
LongLongAlign = 32;
- resetDataLayout("E-m:o-p:32:32-f64:32:64-n32");
+ resetDataLayout("E-m:o-p:32:32-f64:32:64-n32", "_");
}
BuiltinVaListKind getBuiltinVaListKind() const override {
@@ -482,7 +482,7 @@
DarwinPPC64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
: DarwinTargetInfo<PPC64TargetInfo>(Triple, Opts) {
HasAlignMac68kSupport = true;
- resetDataLayout("E-m:o-i64:64-n32:64");
+ resetDataLayout("E-m:o-i64:64-n32:64", "_");
}
};
Index: clang/lib/Basic/Targets/ARM.cpp
===================================================================
--- clang/lib/Basic/Targets/ARM.cpp
+++ clang/lib/Basic/Targets/ARM.cpp
@@ -44,7 +44,7 @@
if (T.isOSBinFormatMachO()) {
resetDataLayout(BigEndian
? "E-m:o-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
- : "e-m:o-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64");
+ : "e-m:o-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64", "_");
} else if (T.isOSWindows()) {
assert(!BigEndian && "Windows on ARM does not support big endian");
resetDataLayout("e"
@@ -93,12 +93,13 @@
if (T.isOSBinFormatMachO() && IsAAPCS16) {
assert(!BigEndian && "AAPCS16 does not support big-endian");
- resetDataLayout("e-m:o-p:32:32-Fi8-i64:64-a:0:32-n32-S128");
+ resetDataLayout("e-m:o-p:32:32-Fi8-i64:64-a:0:32-n32-S128", "_");
} else if (T.isOSBinFormatMachO())
resetDataLayout(
BigEndian
? "E-m:o-p:32:32-Fi8-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"
- : "e-m:o-p:32:32-Fi8-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32");
+ : "e-m:o-p:32:32-Fi8-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32",
+ "_");
else
resetDataLayout(
BigEndian
Index: clang/lib/Basic/Targets/AMDGPU.cpp
===================================================================
--- clang/lib/Basic/Targets/AMDGPU.cpp
+++ clang/lib/Basic/Targets/AMDGPU.cpp
@@ -18,7 +18,6 @@
#include "clang/Basic/TargetBuiltins.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/Frontend/OpenMP/OMPGridValues.h"
-#include "llvm/IR/DataLayout.h"
using namespace clang;
using namespace clang::targets;
@@ -322,7 +321,6 @@
llvm::AMDGPU::getArchAttrR600(GPUKind)) {
resetDataLayout(isAMDGCN(getTriple()) ? DataLayoutStringAMDGCN
: DataLayoutStringR600);
- assert(DataLayout->getAllocaAddrSpace() == Private);
GridValues = llvm::omp::AMDGPUGpuGridValues;
setAddressSpaceMap(Triple.getOS() == llvm::Triple::Mesa3D ||
@@ -335,7 +333,7 @@
AllowAMDGPUUnsafeFPAtomics = Opts.AllowAMDGPUUnsafeFPAtomics;
// Set pointer width and alignment for target address space 0.
- PointerWidth = PointerAlign = DataLayout->getPointerSizeInBits();
+ PointerWidth = PointerAlign = getPointerWidthV(Generic);
if (getMaxPointerWidth() == 64) {
LongWidth = LongAlign = 64;
SizeType = UnsignedLong;
Index: clang/lib/Basic/Targets/AArch64.cpp
===================================================================
--- clang/lib/Basic/Targets/AArch64.cpp
+++ clang/lib/Basic/Targets/AArch64.cpp
@@ -745,9 +745,9 @@
void AArch64leTargetInfo::setDataLayout() {
if (getTriple().isOSBinFormatMachO()) {
if(getTriple().isArch32Bit())
- resetDataLayout("e-m:o-p:32:32-i64:64-i128:128-n32:64-S128");
+ resetDataLayout("e-m:o-p:32:32-i64:64-i128:128-n32:64-S128", "_");
else
- resetDataLayout("e-m:o-i64:64-i128:128-n32:64-S128");
+ resetDataLayout("e-m:o-i64:64-i128:128-n32:64-S128", "_");
} else
resetDataLayout("e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128");
}
@@ -796,7 +796,8 @@
void WindowsARM64TargetInfo::setDataLayout() {
resetDataLayout(Triple.isOSBinFormatMachO()
? "e-m:o-i64:64-i128:128-n32:64-S128"
- : "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128");
+ : "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128",
+ Triple.isOSBinFormatMachO() ? "_" : "");
}
TargetInfo::BuiltinVaListKind
Index: clang/lib/Basic/TargetInfo.cpp
===================================================================
--- clang/lib/Basic/TargetInfo.cpp
+++ clang/lib/Basic/TargetInfo.cpp
@@ -17,7 +17,6 @@
#include "clang/Basic/LangOptions.h"
#include "llvm/ADT/APFloat.h"
#include "llvm/ADT/STLExtras.h"
-#include "llvm/IR/DataLayout.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/TargetParser.h"
#include <cstdlib>
@@ -114,6 +113,7 @@
LongDoubleFormat = &llvm::APFloat::IEEEdouble();
Float128Format = &llvm::APFloat::IEEEquad();
MCountName = "mcount";
+ UserLabelPrefix = "_";
RegParmMax = 0;
SSERegParmMax = 0;
HasAlignMac68kSupport = false;
@@ -149,8 +149,9 @@
// Out of line virtual dtor for TargetInfo.
TargetInfo::~TargetInfo() {}
-void TargetInfo::resetDataLayout(StringRef DL) {
- DataLayout.reset(new llvm::DataLayout(DL));
+void TargetInfo::resetDataLayout(StringRef DL, const char *ULP) {
+ DataLayoutString = DL.str();
+ UserLabelPrefix = ULP;
}
bool
Index: clang/lib/Basic/CMakeLists.txt
===================================================================
--- clang/lib/Basic/CMakeLists.txt
+++ clang/lib/Basic/CMakeLists.txt
@@ -1,5 +1,4 @@
set(LLVM_LINK_COMPONENTS
- Core
MC
Support
)
Index: clang/lib/AST/Mangle.cpp
===================================================================
--- clang/lib/AST/Mangle.cpp
+++ clang/lib/AST/Mangle.cpp
@@ -139,7 +139,9 @@
}
void MangleContext::mangleName(GlobalDecl GD, raw_ostream &Out) {
+ const ASTContext &ASTContext = getASTContext();
const NamedDecl *D = cast<NamedDecl>(GD.getDecl());
+
// Any decl can be declared with __asm("foo") on it, and this takes precedence
// over all other naming in the .o file.
if (const AsmLabelAttr *ALA = D->getAttr<AsmLabelAttr>()) {
@@ -157,9 +159,16 @@
// tricks normally used for producing aliases (PR9177). Fortunately the
// llvm mangler on ELF is a nop, so we can just avoid adding the \01
// marker.
+ StringRef UserLabelPrefix =
+ getASTContext().getTargetInfo().getUserLabelPrefix();
+#ifndef NDEBUG
char GlobalPrefix =
- getASTContext().getTargetInfo().getDataLayout().getGlobalPrefix();
- if (GlobalPrefix)
+ llvm::DataLayout(getASTContext().getTargetInfo().getDataLayoutString())
+ .getGlobalPrefix();
+ assert((UserLabelPrefix.empty() && !GlobalPrefix) ||
+ (UserLabelPrefix.size() == 1 && UserLabelPrefix[0] == GlobalPrefix));
+#endif
+ if (!UserLabelPrefix.empty())
Out << '\01'; // LLVM IR Marker for __asm("foo")
Out << ALA->getLabel();
@@ -169,7 +178,6 @@
if (auto *GD = dyn_cast<MSGuidDecl>(D))
return mangleMSGuidDecl(GD, Out);
- const ASTContext &ASTContext = getASTContext();
CCMangling CC = getCallingConvMangling(ASTContext, D);
if (CC == CCM_WasmMainArgcArgv) {
@@ -383,8 +391,8 @@
public:
explicit Implementation(ASTContext &Ctx)
- : MC(Ctx.createMangleContext()), DL(Ctx.getTargetInfo().getDataLayout()) {
- }
+ : MC(Ctx.createMangleContext()),
+ DL(Ctx.getTargetInfo().getDataLayoutString()) {}
bool writeName(const Decl *D, raw_ostream &OS) {
// First apply frontend mangling.
Index: clang/include/clang/CodeGen/BackendUtil.h
===================================================================
--- clang/include/clang/CodeGen/BackendUtil.h
+++ clang/include/clang/CodeGen/BackendUtil.h
@@ -39,8 +39,7 @@
void EmitBackendOutput(DiagnosticsEngine &Diags, const HeaderSearchOptions &,
const CodeGenOptions &CGOpts,
const TargetOptions &TOpts, const LangOptions &LOpts,
- const llvm::DataLayout &TDesc, llvm::Module *M,
- BackendAction Action,
+ StringRef TDesc, llvm::Module *M, BackendAction Action,
std::unique_ptr<raw_pwrite_stream> OS);
void EmbedBitcode(llvm::Module *M, const CodeGenOptions &CGOpts,
Index: clang/include/clang/Basic/TargetInfo.h
===================================================================
--- clang/include/clang/Basic/TargetInfo.h
+++ clang/include/clang/Basic/TargetInfo.h
@@ -40,7 +40,6 @@
namespace llvm {
struct fltSemantics;
-class DataLayout;
}
namespace clang {
@@ -205,7 +204,8 @@
unsigned char MaxAtomicPromoteWidth, MaxAtomicInlineWidth;
unsigned short SimdDefaultAlign;
- std::unique_ptr<llvm::DataLayout> DataLayout;
+ std::string DataLayoutString;
+ const char *UserLabelPrefix;
const char *MCountName;
unsigned char RegParmMax, SSERegParmMax;
TargetCXXABI TheCXXABI;
@@ -238,7 +238,9 @@
// TargetInfo Constructor. Default initializes all fields.
TargetInfo(const llvm::Triple &T);
- void resetDataLayout(StringRef DL);
+ // UserLabelPrefix must match DL's getGlobalPrefix() when interpreted
+ // as a DataLayout object.
+ void resetDataLayout(StringRef DL, const char *UserLabelPrefix = "");
public:
/// Construct a target for the given options.
@@ -747,6 +749,14 @@
return PointerWidth;
}
+ /// \brief Returns the default value of the __USER_LABEL_PREFIX__ macro,
+ /// which is the prefix given to user symbols by default.
+ ///
+ /// On most platforms this is "", but it is "_" on some.
+ const char *getUserLabelPrefix() const {
+ return UserLabelPrefix;
+ }
+
/// Returns the name of the mcount instrumentation function.
const char *getMCountName() const {
return MCountName;
@@ -1096,9 +1106,9 @@
/// Returns the target ID if supported.
virtual llvm::Optional<std::string> getTargetID() const { return llvm::None; }
- const llvm::DataLayout &getDataLayout() const {
- assert(DataLayout && "Uninitialized DataLayout!");
- return *DataLayout;
+ const char *getDataLayoutString() const {
+ assert(!DataLayoutString.empty() && "Uninitialized DataLayout!");
+ return DataLayoutString.c_str();
}
struct GCCRegAlias {
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