Re-commit r247683: Replace Triple with a new TargetTuple in MCTargetDesc/* and related. NFC.

Summary:
This is the first patch in the series to migrate Triple's (which are ambiguous)
to TargetTuple's (which aren't).

For the moment, TargetTuple simply passes all requests to the Triple object it
holds. Once it has replaced Triple, it will start to implement the interface in
a more suitable way.

This change makes some changes to the public C++ API. In particular,
InitMCSubtargetInfo(), createMCRelocationInfo(), and createMCSymbolizer()
now take TargetTuples instead of Triples. The other public C++ API's have
been left as-is for the moment to reduce patch size.

This commit also contains a trivial patch to clang to account for the C++ API
change. Thanks go to Pavel Labath for fixing LLDB for me.

Reviewers: rengolin

Subscribers: jyknight, dschuff, arsenm, rampitec, danalbert, srhines, javed.absar, dsanders, echristo, emaste, jholewinski, tberghammer, ted, jfb, llvm-commits, rengolin

Differential Revision: http://reviews.llvm.org/D10969

llvm-svn: 247692

1 files changed, 315 insertions, 0 deletions

diff --git a/llvm/lib/Support/TargetTuple.cpp b/llvm/lib/Support/TargetTuple.cpp
new file mode 100644
index 00000000000..3db21f91785
--- /dev/null
+++ b/llvm/lib/Support/TargetTuple.cpp
@@ -0,0 +1,315 @@
+//===--- TargetTuple.cpp - Target tuple class -----------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ADT/StringSwitch.h"
+#include "llvm/ADT/TargetTuple.h"
+#include "llvm/Support/TargetParser.h"
+
+using namespace llvm;
+
+// FIXME: These should be removed as soon as the Triple member is replaced.
+static TargetTuple::ArchType
+convertTripleArchToTupleArch(Triple::ArchType Arch) {
+  switch (Arch) {
+  case Triple::UnknownArch:
+    return TargetTuple::UnknownArch;
+  case Triple::arm:
+    return TargetTuple::arm;
+  case Triple::armeb:
+    return TargetTuple::armeb;
+  case Triple::aarch64:
+    return TargetTuple::aarch64;
+  case Triple::aarch64_be:
+    return TargetTuple::aarch64_be;
+  case Triple::bpfel:
+    return TargetTuple::bpfel;
+  case Triple::bpfeb:
+    return TargetTuple::bpfeb;
+  case Triple::hexagon:
+    return TargetTuple::hexagon;
+  case Triple::mips:
+    return TargetTuple::mips;
+  case Triple::mipsel:
+    return TargetTuple::mipsel;
+  case Triple::mips64:
+    return TargetTuple::mips64;
+  case Triple::mips64el:
+    return TargetTuple::mips64el;
+  case Triple::msp430:
+    return TargetTuple::msp430;
+  case Triple::ppc:
+    return TargetTuple::ppc;
+  case Triple::ppc64:
+    return TargetTuple::ppc64;
+  case Triple::ppc64le:
+    return TargetTuple::ppc64le;
+  case Triple::r600:
+    return TargetTuple::r600;
+  case Triple::amdgcn:
+    return TargetTuple::amdgcn;
+  case Triple::sparc:
+    return TargetTuple::sparc;
+  case Triple::sparcv9:
+    return TargetTuple::sparcv9;
+  case Triple::sparcel:
+    return TargetTuple::sparcel;
+  case Triple::systemz:
+    return TargetTuple::systemz;
+  case Triple::tce:
+    return TargetTuple::tce;
+  case Triple::thumb:
+    return TargetTuple::thumb;
+  case Triple::thumbeb:
+    return TargetTuple::thumbeb;
+  case Triple::x86:
+    return TargetTuple::x86;
+  case Triple::x86_64:
+    return TargetTuple::x86_64;
+  case Triple::xcore:
+    return TargetTuple::xcore;
+  case Triple::nvptx:
+    return TargetTuple::nvptx;
+  case Triple::nvptx64:
+    return TargetTuple::nvptx64;
+  case Triple::le32:
+    return TargetTuple::le32;
+  case Triple::le64:
+    return TargetTuple::le64;
+  case Triple::amdil:
+    return TargetTuple::amdil;
+  case Triple::amdil64:
+    return TargetTuple::amdil64;
+  case Triple::hsail:
+    return TargetTuple::hsail;
+  case Triple::hsail64:
+    return TargetTuple::hsail64;
+  case Triple::spir:
+    return TargetTuple::spir;
+  case Triple::spir64:
+    return TargetTuple::spir64;
+  case Triple::kalimba:
+    return TargetTuple::kalimba;
+  case Triple::shave:
+    return TargetTuple::shave;
+  case Triple::wasm32:
+    return TargetTuple::wasm32;
+  case Triple::wasm64:
+    return TargetTuple::wasm64;
+  }
+  llvm_unreachable("Unmapped architecture.");
+}
+
+// FIXME: These should be removed as soon as the Triple member is replaced.
+static TargetTuple::SubArchType
+convertTripleSubArchToTupleSubArch(Triple::SubArchType SubArch) {
+  switch (SubArch) {
+  case Triple::NoSubArch:
+    return TargetTuple::NoSubArch;
+  case Triple::ARMSubArch_v8_1a:
+    return TargetTuple::ARMSubArch_v8_1a;
+  case Triple::ARMSubArch_v8:
+    return TargetTuple::ARMSubArch_v8;
+  case Triple::ARMSubArch_v7:
+    return TargetTuple::ARMSubArch_v7;
+  case Triple::ARMSubArch_v7em:
+    return TargetTuple::ARMSubArch_v7em;
+  case Triple::ARMSubArch_v7m:
+    return TargetTuple::ARMSubArch_v7m;
+  case Triple::ARMSubArch_v7s:
+    return TargetTuple::ARMSubArch_v7s;
+  case Triple::ARMSubArch_v6:
+    return TargetTuple::ARMSubArch_v6;
+  case Triple::ARMSubArch_v6m:
+    return TargetTuple::ARMSubArch_v6m;
+  case Triple::ARMSubArch_v6k:
+    return TargetTuple::ARMSubArch_v6k;
+  case Triple::ARMSubArch_v6t2:
+    return TargetTuple::ARMSubArch_v6t2;
+  case Triple::ARMSubArch_v5:
+    return TargetTuple::ARMSubArch_v5;
+  case Triple::ARMSubArch_v5te:
+    return TargetTuple::ARMSubArch_v5te;
+  case Triple::ARMSubArch_v4t:
+    return TargetTuple::ARMSubArch_v4t;
+  case Triple::KalimbaSubArch_v3:
+    return TargetTuple::KalimbaSubArch_v3;
+  case Triple::KalimbaSubArch_v4:
+    return TargetTuple::KalimbaSubArch_v4;
+  case Triple::KalimbaSubArch_v5:
+    return TargetTuple::KalimbaSubArch_v5;
+  }
+  llvm_unreachable("Unmapped subarchitecture.");
+}
+
+// FIXME: These should be removed as soon as the Triple member is replaced.
+static TargetTuple::VendorType
+convertTripleVendorToTupleVendor(Triple::VendorType Vendor) {
+  switch (Vendor) {
+  case Triple::UnknownVendor:
+    return TargetTuple::UnknownVendor;
+  case Triple::Apple:
+    return TargetTuple::Apple;
+  case Triple::PC:
+    return TargetTuple::PC;
+  case Triple::SCEI:
+    return TargetTuple::SCEI;
+  case Triple::BGP:
+    return TargetTuple::BGP;
+  case Triple::BGQ:
+    return TargetTuple::BGQ;
+  case Triple::Freescale:
+    return TargetTuple::Freescale;
+  case Triple::IBM:
+    return TargetTuple::IBM;
+  case Triple::ImaginationTechnologies:
+    return TargetTuple::ImaginationTechnologies;
+  case Triple::MipsTechnologies:
+    return TargetTuple::MipsTechnologies;
+  case Triple::NVIDIA:
+    return TargetTuple::NVIDIA;
+  case Triple::CSR:
+    return TargetTuple::CSR;
+  case Triple::Myriad:
+    return TargetTuple::Myriad;
+  }
+  llvm_unreachable("Unmapped vendor.");
+}
+
+// FIXME: These should be removed as soon as the Triple member is replaced.
+static TargetTuple::OSType convertTripleOSToTupleOS(Triple::OSType OS) {
+  switch (OS) {
+  case Triple::UnknownOS:
+    return TargetTuple::UnknownOS;
+  case Triple::CloudABI:
+    return TargetTuple::CloudABI;
+  case Triple::Darwin:
+    return TargetTuple::Darwin;
+  case Triple::DragonFly:
+    return TargetTuple::DragonFly;
+  case Triple::FreeBSD:
+    return TargetTuple::FreeBSD;
+  case Triple::IOS:
+    return TargetTuple::IOS;
+  case Triple::KFreeBSD:
+    return TargetTuple::KFreeBSD;
+  case Triple::Linux:
+    return TargetTuple::Linux;
+  case Triple::Lv2:
+    return TargetTuple::Lv2;
+  case Triple::MacOSX:
+    return TargetTuple::MacOSX;
+  case Triple::NetBSD:
+    return TargetTuple::NetBSD;
+  case Triple::OpenBSD:
+    return TargetTuple::OpenBSD;
+  case Triple::Solaris:
+    return TargetTuple::Solaris;
+  case Triple::Win32:
+    return TargetTuple::Win32;
+  case Triple::Haiku:
+    return TargetTuple::Haiku;
+  case Triple::Minix:
+    return TargetTuple::Minix;
+  case Triple::RTEMS:
+    return TargetTuple::RTEMS;
+  case Triple::NaCl:
+    return TargetTuple::NaCl;
+  case Triple::CNK:
+    return TargetTuple::CNK;
+  case Triple::Bitrig:
+    return TargetTuple::Bitrig;
+  case Triple::AIX:
+    return TargetTuple::AIX;
+  case Triple::CUDA:
+    return TargetTuple::CUDA;
+  case Triple::NVCL:
+    return TargetTuple::NVCL;
+  case Triple::AMDHSA:
+    return TargetTuple::AMDHSA;
+  case Triple::PS4:
+    return TargetTuple::PS4;
+  }
+  llvm_unreachable("Unmapped OS.");
+}
+
+// FIXME: These should be removed as soon as the Triple member is replaced.
+static TargetTuple::EnvironmentType
+convertTripleEnvToTupleEnv(Triple::EnvironmentType Env) {
+  switch (Env) {
+  case Triple::UnknownEnvironment:
+    return TargetTuple::UnknownEnvironment;
+  case Triple::GNU:
+    return TargetTuple::GNU;
+  case Triple::GNUEABI:
+    return TargetTuple::GNUEABI;
+  case Triple::GNUEABIHF:
+    return TargetTuple::GNUEABIHF;
+  case Triple::GNUX32:
+    return TargetTuple::GNUX32;
+  case Triple::CODE16:
+    return TargetTuple::CODE16;
+  case Triple::EABI:
+    return TargetTuple::EABI;
+  case Triple::EABIHF:
+    return TargetTuple::EABIHF;
+  case Triple::Android:
+    return TargetTuple::Android;
+  case Triple::MSVC:
+    return TargetTuple::MSVC;
+  case Triple::Itanium:
+    return TargetTuple::Itanium;
+  case Triple::Cygnus:
+    return TargetTuple::Cygnus;
+  case Triple::AMDOpenCL:
+    return TargetTuple::AMDOpenCL;
+  case Triple::CoreCLR:
+    return TargetTuple::CoreCLR;
+  }
+  llvm_unreachable("Unmapped Environment.");
+}
+
+// FIXME: These should be removed as soon as the Triple member is replaced.
+static TargetTuple::ObjectFormatType
+convertTripleObjFmtToTupleObjFmt(Triple::ObjectFormatType ObjFmt) {
+  switch (ObjFmt) {
+  case Triple::UnknownObjectFormat:
+    return TargetTuple::UnknownObjectFormat;
+  case Triple::COFF:
+    return TargetTuple::COFF;
+  case Triple::ELF:
+    return TargetTuple::ELF;
+  case Triple::MachO:
+    return TargetTuple::MachO;
+  }
+  llvm_unreachable("Unmapped Object Format.");
+}
+
+TargetTuple::ArchType TargetTuple::getArch() const {
+  return convertTripleArchToTupleArch(GnuTT.getArch());
+}
+
+TargetTuple::SubArchType TargetTuple::getSubArch() const {
+  return convertTripleSubArchToTupleSubArch(GnuTT.getSubArch());
+}
+
+TargetTuple::VendorType TargetTuple::getVendor() const {
+  return convertTripleVendorToTupleVendor(GnuTT.getVendor());
+}
+
+TargetTuple::OSType TargetTuple::getOS() const {
+  return convertTripleOSToTupleOS(GnuTT.getOS());
+}
+
+TargetTuple::EnvironmentType TargetTuple::getEnvironment() const {
+  return convertTripleEnvToTupleEnv(GnuTT.getEnvironment());
+}
+
+TargetTuple::ObjectFormatType TargetTuple::getObjectFormat() const {
+  return convertTripleObjFmtToTupleObjFmt(GnuTT.getObjectFormat());
+}