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ARM64: initial backend import

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This adds a second implementation of the AArch64 architecture to LLVM,
accessible in parallel via the "arm64" triple. The plan over the
coming weeks & months is to merge the two into a single backend,
during which time thorough code review should naturally occur.

Everything will be easier with the target in-tree though, hence this
commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205090 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tim Northover
2014-03-29 10:18:08 +00:00
parent 69bd9577fc
commit 7b837d8c75
394 changed files with 105888 additions and 32 deletions
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22
lib/Object/MachOObjectFile.cpp
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@ -13,6 +13,7 @@
//===----------------------------------------------------------------------===//
#include "llvm/Object/MachO.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Support/DataExtractor.h"
#include "llvm/Support/Format.h"
@ -934,6 +935,23 @@ MachOObjectFile::getRelocationTypeName(DataRefImpl Rel,
res = Table[RType];
break;
}
case Triple::arm64:
case Triple::aarch64: {
static const char *const Table[] = {
"ARM64_RELOC_UNSIGNED", "ARM64_RELOC_SUBTRACTOR",
"ARM64_RELOC_BRANCH26", "ARM64_RELOC_PAGE21",
"ARM64_RELOC_PAGEOFF12", "ARM64_RELOC_GOT_LOAD_PAGE21",
"ARM64_RELOC_GOT_LOAD_PAGEOFF12", "ARM64_RELOC_POINTER_TO_GOT",
"ARM64_RELOC_TLVP_LOAD_PAGE21", "ARM64_RELOC_TLVP_LOAD_PAGEOFF12",
"ARM64_RELOC_ADDEND"
};
if (RType >= array_lengthof(Table))
res = "Unknown";
else
res = Table[RType];
break;
}
case Triple::ppc: {
static const char *const Table[] = {
"PPC_RELOC_VANILLA",
@ -1256,6 +1274,8 @@ StringRef MachOObjectFile::getFileFormatName() const {
switch (CPUType) {
case llvm::MachO::CPU_TYPE_X86_64:
return "Mach-O 64-bit x86-64";
case llvm::MachO::CPU_TYPE_ARM64:
return "Mach-O arm64";
case llvm::MachO::CPU_TYPE_POWERPC64:
return "Mach-O 64-bit ppc64";
default:
@ -1271,6 +1291,8 @@ Triple::ArchType MachOObjectFile::getArch(uint32_t CPUType) {
return Triple::x86_64;
case llvm::MachO::CPU_TYPE_ARM:
return Triple::arm;
case llvm::MachO::CPU_TYPE_ARM64:
return Triple::arm64;
case llvm::MachO::CPU_TYPE_POWERPC:
return Triple::ppc;
case llvm::MachO::CPU_TYPE_POWERPC64: