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b312be79c8
We seem to be (logically) returning ArchExtKinds here in all cases, so the return type should reflect that. The static_cast is necessary because `A.ID` is actually an `unsigned`, presumably since we use `decltype(A)` to represent extended attributes for both ARM and AArch64, which use distinct `ArchExtKinds`. We can't trivially make the same change for ARM, because one of the values it returns is the bitwise-or of two `ARM::ArchExtKind`s. llvm-svn: 322613
906 lines
27 KiB
C++
906 lines
27 KiB
C++
//===-- TargetParser - Parser for target features ---------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements a target parser to recognise hardware features such as
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// FPU/CPU/ARCH names as well as specific support such as HDIV, etc.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/ARMBuildAttributes.h"
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#include "llvm/Support/TargetParser.h"
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#include "llvm/ADT/StringSwitch.h"
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#include "llvm/ADT/Twine.h"
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#include <cctype>
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using namespace llvm;
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using namespace ARM;
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using namespace AArch64;
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namespace {
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// List of canonical FPU names (use getFPUSynonym) and which architectural
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// features they correspond to (use getFPUFeatures).
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// FIXME: TableGen this.
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// The entries must appear in the order listed in ARM::FPUKind for correct indexing
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static const struct {
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const char *NameCStr;
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size_t NameLength;
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ARM::FPUKind ID;
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ARM::FPUVersion FPUVersion;
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ARM::NeonSupportLevel NeonSupport;
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ARM::FPURestriction Restriction;
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StringRef getName() const { return StringRef(NameCStr, NameLength); }
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} FPUNames[] = {
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#define ARM_FPU(NAME, KIND, VERSION, NEON_SUPPORT, RESTRICTION) \
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{ NAME, sizeof(NAME) - 1, KIND, VERSION, NEON_SUPPORT, RESTRICTION },
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#include "llvm/Support/ARMTargetParser.def"
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};
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// List of canonical arch names (use getArchSynonym).
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// This table also provides the build attribute fields for CPU arch
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// and Arch ID, according to the Addenda to the ARM ABI, chapters
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// 2.4 and 2.3.5.2 respectively.
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// FIXME: SubArch values were simplified to fit into the expectations
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// of the triples and are not conforming with their official names.
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// Check to see if the expectation should be changed.
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// FIXME: TableGen this.
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template <typename T> struct ArchNames {
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const char *NameCStr;
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size_t NameLength;
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const char *CPUAttrCStr;
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size_t CPUAttrLength;
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const char *SubArchCStr;
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size_t SubArchLength;
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unsigned DefaultFPU;
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unsigned ArchBaseExtensions;
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T ID;
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ARMBuildAttrs::CPUArch ArchAttr; // Arch ID in build attributes.
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StringRef getName() const { return StringRef(NameCStr, NameLength); }
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// CPU class in build attributes.
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StringRef getCPUAttr() const { return StringRef(CPUAttrCStr, CPUAttrLength); }
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// Sub-Arch name.
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StringRef getSubArch() const { return StringRef(SubArchCStr, SubArchLength); }
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};
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ArchNames<ARM::ArchKind> ARCHNames[] = {
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#define ARM_ARCH(NAME, ID, CPU_ATTR, SUB_ARCH, ARCH_ATTR, ARCH_FPU, ARCH_BASE_EXT) \
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{NAME, sizeof(NAME) - 1, CPU_ATTR, sizeof(CPU_ATTR) - 1, SUB_ARCH, \
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sizeof(SUB_ARCH) - 1, ARCH_FPU, ARCH_BASE_EXT, ARM::ArchKind::ID, ARCH_ATTR},
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#include "llvm/Support/ARMTargetParser.def"
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};
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ArchNames<AArch64::ArchKind> AArch64ARCHNames[] = {
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#define AARCH64_ARCH(NAME, ID, CPU_ATTR, SUB_ARCH, ARCH_ATTR, ARCH_FPU, ARCH_BASE_EXT) \
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{NAME, sizeof(NAME) - 1, CPU_ATTR, sizeof(CPU_ATTR) - 1, SUB_ARCH, \
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sizeof(SUB_ARCH) - 1, ARCH_FPU, ARCH_BASE_EXT, AArch64::ArchKind::ID, ARCH_ATTR},
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#include "llvm/Support/AArch64TargetParser.def"
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};
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// List of Arch Extension names.
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// FIXME: TableGen this.
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static const struct {
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const char *NameCStr;
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size_t NameLength;
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unsigned ID;
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const char *Feature;
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const char *NegFeature;
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StringRef getName() const { return StringRef(NameCStr, NameLength); }
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} ARCHExtNames[] = {
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#define ARM_ARCH_EXT_NAME(NAME, ID, FEATURE, NEGFEATURE) \
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{ NAME, sizeof(NAME) - 1, ID, FEATURE, NEGFEATURE },
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#include "llvm/Support/ARMTargetParser.def"
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},AArch64ARCHExtNames[] = {
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#define AARCH64_ARCH_EXT_NAME(NAME, ID, FEATURE, NEGFEATURE) \
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{ NAME, sizeof(NAME) - 1, ID, FEATURE, NEGFEATURE },
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#include "llvm/Support/AArch64TargetParser.def"
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};
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// List of HWDiv names (use getHWDivSynonym) and which architectural
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// features they correspond to (use getHWDivFeatures).
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// FIXME: TableGen this.
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static const struct {
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const char *NameCStr;
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size_t NameLength;
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unsigned ID;
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StringRef getName() const { return StringRef(NameCStr, NameLength); }
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} HWDivNames[] = {
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#define ARM_HW_DIV_NAME(NAME, ID) { NAME, sizeof(NAME) - 1, ID },
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#include "llvm/Support/ARMTargetParser.def"
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};
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// List of CPU names and their arches.
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// The same CPU can have multiple arches and can be default on multiple arches.
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// When finding the Arch for a CPU, first-found prevails. Sort them accordingly.
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// When this becomes table-generated, we'd probably need two tables.
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// FIXME: TableGen this.
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template <typename T> struct CpuNames {
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const char *NameCStr;
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size_t NameLength;
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T ArchID;
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bool Default; // is $Name the default CPU for $ArchID ?
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unsigned DefaultExtensions;
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StringRef getName() const { return StringRef(NameCStr, NameLength); }
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};
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CpuNames<ARM::ArchKind> CPUNames[] = {
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#define ARM_CPU_NAME(NAME, ID, DEFAULT_FPU, IS_DEFAULT, DEFAULT_EXT) \
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{ NAME, sizeof(NAME) - 1, ARM::ArchKind::ID, IS_DEFAULT, DEFAULT_EXT },
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#include "llvm/Support/ARMTargetParser.def"
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};
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CpuNames<AArch64::ArchKind> AArch64CPUNames[] = {
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#define AARCH64_CPU_NAME(NAME, ID, DEFAULT_FPU, IS_DEFAULT, DEFAULT_EXT) \
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{ NAME, sizeof(NAME) - 1, AArch64::ArchKind::ID, IS_DEFAULT, DEFAULT_EXT },
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#include "llvm/Support/AArch64TargetParser.def"
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};
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} // namespace
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// ======================================================= //
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// Information by ID
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// ======================================================= //
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StringRef ARM::getFPUName(unsigned FPUKind) {
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if (FPUKind >= ARM::FK_LAST)
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return StringRef();
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return FPUNames[FPUKind].getName();
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}
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FPUVersion ARM::getFPUVersion(unsigned FPUKind) {
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if (FPUKind >= ARM::FK_LAST)
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return FPUVersion::NONE;
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return FPUNames[FPUKind].FPUVersion;
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}
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ARM::NeonSupportLevel ARM::getFPUNeonSupportLevel(unsigned FPUKind) {
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if (FPUKind >= ARM::FK_LAST)
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return ARM::NeonSupportLevel::None;
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return FPUNames[FPUKind].NeonSupport;
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}
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ARM::FPURestriction ARM::getFPURestriction(unsigned FPUKind) {
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if (FPUKind >= ARM::FK_LAST)
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return ARM::FPURestriction::None;
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return FPUNames[FPUKind].Restriction;
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}
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unsigned llvm::ARM::getDefaultFPU(StringRef CPU, ArchKind AK) {
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if (CPU == "generic")
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return ARCHNames[static_cast<unsigned>(AK)].DefaultFPU;
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return StringSwitch<unsigned>(CPU)
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#define ARM_CPU_NAME(NAME, ID, DEFAULT_FPU, IS_DEFAULT, DEFAULT_EXT) \
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.Case(NAME, DEFAULT_FPU)
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#include "llvm/Support/ARMTargetParser.def"
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.Default(ARM::FK_INVALID);
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}
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unsigned llvm::ARM::getDefaultExtensions(StringRef CPU, ArchKind AK) {
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if (CPU == "generic")
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return ARCHNames[static_cast<unsigned>(AK)].ArchBaseExtensions;
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return StringSwitch<unsigned>(CPU)
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#define ARM_CPU_NAME(NAME, ID, DEFAULT_FPU, IS_DEFAULT, DEFAULT_EXT) \
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.Case(NAME, ARCHNames[static_cast<unsigned>(ARM::ArchKind::ID)]\
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.ArchBaseExtensions | DEFAULT_EXT)
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#include "llvm/Support/ARMTargetParser.def"
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.Default(ARM::AEK_INVALID);
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}
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bool llvm::ARM::getHWDivFeatures(unsigned HWDivKind,
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std::vector<StringRef> &Features) {
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if (HWDivKind == ARM::AEK_INVALID)
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return false;
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if (HWDivKind & ARM::AEK_HWDIVARM)
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Features.push_back("+hwdiv-arm");
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else
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Features.push_back("-hwdiv-arm");
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if (HWDivKind & ARM::AEK_HWDIVTHUMB)
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Features.push_back("+hwdiv");
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else
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Features.push_back("-hwdiv");
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return true;
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}
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bool llvm::ARM::getExtensionFeatures(unsigned Extensions,
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std::vector<StringRef> &Features) {
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if (Extensions == ARM::AEK_INVALID)
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return false;
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if (Extensions & ARM::AEK_CRC)
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Features.push_back("+crc");
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else
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Features.push_back("-crc");
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if (Extensions & ARM::AEK_DSP)
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Features.push_back("+dsp");
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else
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Features.push_back("-dsp");
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if (Extensions & ARM::AEK_RAS)
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Features.push_back("+ras");
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else
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Features.push_back("-ras");
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if (Extensions & ARM::AEK_DOTPROD)
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Features.push_back("+dotprod");
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else
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Features.push_back("-dotprod");
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return getHWDivFeatures(Extensions, Features);
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}
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bool llvm::ARM::getFPUFeatures(unsigned FPUKind,
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std::vector<StringRef> &Features) {
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if (FPUKind >= ARM::FK_LAST || FPUKind == ARM::FK_INVALID)
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return false;
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// fp-only-sp and d16 subtarget features are independent of each other, so we
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// must enable/disable both.
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switch (FPUNames[FPUKind].Restriction) {
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case ARM::FPURestriction::SP_D16:
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Features.push_back("+fp-only-sp");
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Features.push_back("+d16");
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break;
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case ARM::FPURestriction::D16:
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Features.push_back("-fp-only-sp");
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Features.push_back("+d16");
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break;
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case ARM::FPURestriction::None:
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Features.push_back("-fp-only-sp");
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Features.push_back("-d16");
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break;
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}
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// FPU version subtarget features are inclusive of lower-numbered ones, so
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// enable the one corresponding to this version and disable all that are
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// higher. We also have to make sure to disable fp16 when vfp4 is disabled,
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// as +vfp4 implies +fp16 but -vfp4 does not imply -fp16.
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switch (FPUNames[FPUKind].FPUVersion) {
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case ARM::FPUVersion::VFPV5:
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Features.push_back("+fp-armv8");
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break;
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case ARM::FPUVersion::VFPV4:
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Features.push_back("+vfp4");
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Features.push_back("-fp-armv8");
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break;
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case ARM::FPUVersion::VFPV3_FP16:
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Features.push_back("+vfp3");
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Features.push_back("+fp16");
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Features.push_back("-vfp4");
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Features.push_back("-fp-armv8");
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break;
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case ARM::FPUVersion::VFPV3:
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Features.push_back("+vfp3");
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Features.push_back("-fp16");
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Features.push_back("-vfp4");
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Features.push_back("-fp-armv8");
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break;
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case ARM::FPUVersion::VFPV2:
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Features.push_back("+vfp2");
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Features.push_back("-vfp3");
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Features.push_back("-fp16");
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Features.push_back("-vfp4");
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Features.push_back("-fp-armv8");
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break;
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case ARM::FPUVersion::NONE:
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Features.push_back("-vfp2");
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Features.push_back("-vfp3");
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Features.push_back("-fp16");
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Features.push_back("-vfp4");
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Features.push_back("-fp-armv8");
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break;
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}
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// crypto includes neon, so we handle this similarly to FPU version.
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switch (FPUNames[FPUKind].NeonSupport) {
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case ARM::NeonSupportLevel::Crypto:
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Features.push_back("+neon");
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Features.push_back("+crypto");
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break;
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case ARM::NeonSupportLevel::Neon:
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Features.push_back("+neon");
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Features.push_back("-crypto");
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break;
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case ARM::NeonSupportLevel::None:
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Features.push_back("-neon");
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Features.push_back("-crypto");
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break;
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}
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return true;
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}
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StringRef llvm::ARM::getArchName(ArchKind AK) {
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return ARCHNames[static_cast<unsigned>(AK)].getName();
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}
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StringRef llvm::ARM::getCPUAttr(ArchKind AK) {
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return ARCHNames[static_cast<unsigned>(AK)].getCPUAttr();
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}
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StringRef llvm::ARM::getSubArch(ArchKind AK) {
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return ARCHNames[static_cast<unsigned>(AK)].getSubArch();
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}
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unsigned llvm::ARM::getArchAttr(ArchKind AK) {
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return ARCHNames[static_cast<unsigned>(AK)].ArchAttr;
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}
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StringRef llvm::ARM::getArchExtName(unsigned ArchExtKind) {
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for (const auto AE : ARCHExtNames) {
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if (ArchExtKind == AE.ID)
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return AE.getName();
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}
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return StringRef();
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}
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StringRef llvm::ARM::getArchExtFeature(StringRef ArchExt) {
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if (ArchExt.startswith("no")) {
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StringRef ArchExtBase(ArchExt.substr(2));
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for (const auto AE : ARCHExtNames) {
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if (AE.NegFeature && ArchExtBase == AE.getName())
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return StringRef(AE.NegFeature);
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}
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}
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for (const auto AE : ARCHExtNames) {
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if (AE.Feature && ArchExt == AE.getName())
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return StringRef(AE.Feature);
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}
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return StringRef();
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}
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StringRef llvm::ARM::getHWDivName(unsigned HWDivKind) {
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for (const auto D : HWDivNames) {
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if (HWDivKind == D.ID)
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return D.getName();
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}
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return StringRef();
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}
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StringRef llvm::ARM::getDefaultCPU(StringRef Arch) {
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ArchKind AK = parseArch(Arch);
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if (AK == ARM::ArchKind::INVALID)
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return StringRef();
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// Look for multiple AKs to find the default for pair AK+Name.
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for (const auto CPU : CPUNames) {
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if (CPU.ArchID == AK && CPU.Default)
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return CPU.getName();
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}
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// If we can't find a default then target the architecture instead
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return "generic";
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}
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StringRef llvm::AArch64::getFPUName(unsigned FPUKind) {
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return ARM::getFPUName(FPUKind);
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}
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ARM::FPUVersion AArch64::getFPUVersion(unsigned FPUKind) {
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return ARM::getFPUVersion(FPUKind);
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}
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ARM::NeonSupportLevel AArch64::getFPUNeonSupportLevel(unsigned FPUKind) {
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return ARM::getFPUNeonSupportLevel( FPUKind);
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}
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ARM::FPURestriction AArch64::getFPURestriction(unsigned FPUKind) {
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return ARM::getFPURestriction(FPUKind);
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}
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unsigned llvm::AArch64::getDefaultFPU(StringRef CPU, ArchKind AK) {
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if (CPU == "generic")
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return AArch64ARCHNames[static_cast<unsigned>(AK)].DefaultFPU;
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return StringSwitch<unsigned>(CPU)
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#define AARCH64_CPU_NAME(NAME, ID, DEFAULT_FPU, IS_DEFAULT, DEFAULT_EXT) \
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.Case(NAME, DEFAULT_FPU)
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#include "llvm/Support/AArch64TargetParser.def"
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.Default(ARM::FK_INVALID);
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}
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unsigned llvm::AArch64::getDefaultExtensions(StringRef CPU, ArchKind AK) {
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if (CPU == "generic")
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return AArch64ARCHNames[static_cast<unsigned>(AK)].ArchBaseExtensions;
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return StringSwitch<unsigned>(CPU)
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#define AARCH64_CPU_NAME(NAME, ID, DEFAULT_FPU, IS_DEFAULT, DEFAULT_EXT) \
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.Case(NAME, \
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AArch64ARCHNames[static_cast<unsigned>(AArch64::ArchKind::ID)] \
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.ArchBaseExtensions | \
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DEFAULT_EXT)
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#include "llvm/Support/AArch64TargetParser.def"
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.Default(AArch64::AEK_INVALID);
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}
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bool llvm::AArch64::getExtensionFeatures(unsigned Extensions,
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std::vector<StringRef> &Features) {
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if (Extensions == AArch64::AEK_INVALID)
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return false;
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if (Extensions & AArch64::AEK_FP)
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Features.push_back("+fp-armv8");
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if (Extensions & AArch64::AEK_SIMD)
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Features.push_back("+neon");
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if (Extensions & AArch64::AEK_CRC)
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Features.push_back("+crc");
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if (Extensions & AArch64::AEK_CRYPTO)
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Features.push_back("+crypto");
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if (Extensions & AArch64::AEK_DOTPROD)
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Features.push_back("+dotprod");
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if (Extensions & AArch64::AEK_FP16)
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Features.push_back("+fullfp16");
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if (Extensions & AArch64::AEK_PROFILE)
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Features.push_back("+spe");
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if (Extensions & AArch64::AEK_RAS)
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Features.push_back("+ras");
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if (Extensions & AArch64::AEK_LSE)
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Features.push_back("+lse");
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if (Extensions & AArch64::AEK_RDM)
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Features.push_back("+rdm");
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if (Extensions & AArch64::AEK_SVE)
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Features.push_back("+sve");
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if (Extensions & AArch64::AEK_RCPC)
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Features.push_back("+rcpc");
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return true;
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}
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bool llvm::AArch64::getFPUFeatures(unsigned FPUKind,
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std::vector<StringRef> &Features) {
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return ARM::getFPUFeatures(FPUKind, Features);
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}
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bool llvm::AArch64::getArchFeatures(AArch64::ArchKind AK,
|
|
std::vector<StringRef> &Features) {
|
|
if (AK == AArch64::ArchKind::ARMV8_1A)
|
|
Features.push_back("+v8.1a");
|
|
if (AK == AArch64::ArchKind::ARMV8_2A)
|
|
Features.push_back("+v8.2a");
|
|
if (AK == AArch64::ArchKind::ARMV8_3A)
|
|
Features.push_back("+v8.3a");
|
|
|
|
return AK != AArch64::ArchKind::INVALID;
|
|
}
|
|
|
|
StringRef llvm::AArch64::getArchName(ArchKind AK) {
|
|
return AArch64ARCHNames[static_cast<unsigned>(AK)].getName();
|
|
}
|
|
|
|
StringRef llvm::AArch64::getCPUAttr(ArchKind AK) {
|
|
return AArch64ARCHNames[static_cast<unsigned>(AK)].getCPUAttr();
|
|
}
|
|
|
|
StringRef llvm::AArch64::getSubArch(ArchKind AK) {
|
|
return AArch64ARCHNames[static_cast<unsigned>(AK)].getSubArch();
|
|
}
|
|
|
|
unsigned llvm::AArch64::getArchAttr(ArchKind AK) {
|
|
return AArch64ARCHNames[static_cast<unsigned>(AK)].ArchAttr;
|
|
}
|
|
|
|
StringRef llvm::AArch64::getArchExtName(unsigned ArchExtKind) {
|
|
for (const auto &AE : AArch64ARCHExtNames)
|
|
if (ArchExtKind == AE.ID)
|
|
return AE.getName();
|
|
return StringRef();
|
|
}
|
|
|
|
StringRef llvm::AArch64::getArchExtFeature(StringRef ArchExt) {
|
|
if (ArchExt.startswith("no")) {
|
|
StringRef ArchExtBase(ArchExt.substr(2));
|
|
for (const auto &AE : AArch64ARCHExtNames) {
|
|
if (AE.NegFeature && ArchExtBase == AE.getName())
|
|
return StringRef(AE.NegFeature);
|
|
}
|
|
}
|
|
|
|
for (const auto &AE : AArch64ARCHExtNames)
|
|
if (AE.Feature && ArchExt == AE.getName())
|
|
return StringRef(AE.Feature);
|
|
return StringRef();
|
|
}
|
|
|
|
StringRef llvm::AArch64::getDefaultCPU(StringRef Arch) {
|
|
AArch64::ArchKind AK = parseArch(Arch);
|
|
if (AK == ArchKind::INVALID)
|
|
return StringRef();
|
|
|
|
// Look for multiple AKs to find the default for pair AK+Name.
|
|
for (const auto &CPU : AArch64CPUNames)
|
|
if (CPU.ArchID == AK && CPU.Default)
|
|
return CPU.getName();
|
|
|
|
// If we can't find a default then target the architecture instead
|
|
return "generic";
|
|
}
|
|
|
|
unsigned llvm::AArch64::checkArchVersion(StringRef Arch) {
|
|
if (Arch.size() >= 2 && Arch[0] == 'v' && std::isdigit(Arch[1]))
|
|
return (Arch[1] - 48);
|
|
return 0;
|
|
}
|
|
|
|
// ======================================================= //
|
|
// Parsers
|
|
// ======================================================= //
|
|
|
|
static StringRef getHWDivSynonym(StringRef HWDiv) {
|
|
return StringSwitch<StringRef>(HWDiv)
|
|
.Case("thumb,arm", "arm,thumb")
|
|
.Default(HWDiv);
|
|
}
|
|
|
|
static StringRef getFPUSynonym(StringRef FPU) {
|
|
return StringSwitch<StringRef>(FPU)
|
|
.Cases("fpa", "fpe2", "fpe3", "maverick", "invalid") // Unsupported
|
|
.Case("vfp2", "vfpv2")
|
|
.Case("vfp3", "vfpv3")
|
|
.Case("vfp4", "vfpv4")
|
|
.Case("vfp3-d16", "vfpv3-d16")
|
|
.Case("vfp4-d16", "vfpv4-d16")
|
|
.Cases("fp4-sp-d16", "vfpv4-sp-d16", "fpv4-sp-d16")
|
|
.Cases("fp4-dp-d16", "fpv4-dp-d16", "vfpv4-d16")
|
|
.Case("fp5-sp-d16", "fpv5-sp-d16")
|
|
.Cases("fp5-dp-d16", "fpv5-dp-d16", "fpv5-d16")
|
|
// FIXME: Clang uses it, but it's bogus, since neon defaults to vfpv3.
|
|
.Case("neon-vfpv3", "neon")
|
|
.Default(FPU);
|
|
}
|
|
|
|
static StringRef getArchSynonym(StringRef Arch) {
|
|
return StringSwitch<StringRef>(Arch)
|
|
.Case("v5", "v5t")
|
|
.Case("v5e", "v5te")
|
|
.Case("v6j", "v6")
|
|
.Case("v6hl", "v6k")
|
|
.Cases("v6m", "v6sm", "v6s-m", "v6-m")
|
|
.Cases("v6z", "v6zk", "v6kz")
|
|
.Cases("v7", "v7a", "v7hl", "v7l", "v7-a")
|
|
.Case("v7r", "v7-r")
|
|
.Case("v7m", "v7-m")
|
|
.Case("v7em", "v7e-m")
|
|
.Cases("v8", "v8a", "v8l", "aarch64", "arm64", "v8-a")
|
|
.Case("v8.1a", "v8.1-a")
|
|
.Case("v8.2a", "v8.2-a")
|
|
.Case("v8.3a", "v8.3-a")
|
|
.Case("v8r", "v8-r")
|
|
.Case("v8m.base", "v8-m.base")
|
|
.Case("v8m.main", "v8-m.main")
|
|
.Default(Arch);
|
|
}
|
|
|
|
// MArch is expected to be of the form (arm|thumb)?(eb)?(v.+)?(eb)?, but
|
|
// (iwmmxt|xscale)(eb)? is also permitted. If the former, return
|
|
// "v.+", if the latter, return unmodified string, minus 'eb'.
|
|
// If invalid, return empty string.
|
|
StringRef llvm::ARM::getCanonicalArchName(StringRef Arch) {
|
|
size_t offset = StringRef::npos;
|
|
StringRef A = Arch;
|
|
StringRef Error = "";
|
|
|
|
// Begins with "arm" / "thumb", move past it.
|
|
if (A.startswith("arm64"))
|
|
offset = 5;
|
|
else if (A.startswith("arm"))
|
|
offset = 3;
|
|
else if (A.startswith("thumb"))
|
|
offset = 5;
|
|
else if (A.startswith("aarch64")) {
|
|
offset = 7;
|
|
// AArch64 uses "_be", not "eb" suffix.
|
|
if (A.find("eb") != StringRef::npos)
|
|
return Error;
|
|
if (A.substr(offset, 3) == "_be")
|
|
offset += 3;
|
|
}
|
|
|
|
// Ex. "armebv7", move past the "eb".
|
|
if (offset != StringRef::npos && A.substr(offset, 2) == "eb")
|
|
offset += 2;
|
|
// Or, if it ends with eb ("armv7eb"), chop it off.
|
|
else if (A.endswith("eb"))
|
|
A = A.substr(0, A.size() - 2);
|
|
// Trim the head
|
|
if (offset != StringRef::npos)
|
|
A = A.substr(offset);
|
|
|
|
// Empty string means offset reached the end, which means it's valid.
|
|
if (A.empty())
|
|
return Arch;
|
|
|
|
// Only match non-marketing names
|
|
if (offset != StringRef::npos) {
|
|
// Must start with 'vN'.
|
|
if (A.size() >= 2 && (A[0] != 'v' || !std::isdigit(A[1])))
|
|
return Error;
|
|
// Can't have an extra 'eb'.
|
|
if (A.find("eb") != StringRef::npos)
|
|
return Error;
|
|
}
|
|
|
|
// Arch will either be a 'v' name (v7a) or a marketing name (xscale).
|
|
return A;
|
|
}
|
|
|
|
unsigned llvm::ARM::parseHWDiv(StringRef HWDiv) {
|
|
StringRef Syn = getHWDivSynonym(HWDiv);
|
|
for (const auto D : HWDivNames) {
|
|
if (Syn == D.getName())
|
|
return D.ID;
|
|
}
|
|
return ARM::AEK_INVALID;
|
|
}
|
|
|
|
unsigned llvm::ARM::parseFPU(StringRef FPU) {
|
|
StringRef Syn = getFPUSynonym(FPU);
|
|
for (const auto F : FPUNames) {
|
|
if (Syn == F.getName())
|
|
return F.ID;
|
|
}
|
|
return ARM::FK_INVALID;
|
|
}
|
|
|
|
// Allows partial match, ex. "v7a" matches "armv7a".
|
|
ARM::ArchKind ARM::parseArch(StringRef Arch) {
|
|
Arch = getCanonicalArchName(Arch);
|
|
StringRef Syn = getArchSynonym(Arch);
|
|
for (const auto A : ARCHNames) {
|
|
if (A.getName().endswith(Syn))
|
|
return A.ID;
|
|
}
|
|
return ARM::ArchKind::INVALID;
|
|
}
|
|
|
|
unsigned llvm::ARM::parseArchExt(StringRef ArchExt) {
|
|
for (const auto A : ARCHExtNames) {
|
|
if (ArchExt == A.getName())
|
|
return A.ID;
|
|
}
|
|
return ARM::AEK_INVALID;
|
|
}
|
|
|
|
ARM::ArchKind llvm::ARM::parseCPUArch(StringRef CPU) {
|
|
for (const auto C : CPUNames) {
|
|
if (CPU == C.getName())
|
|
return C.ArchID;
|
|
}
|
|
return ARM::ArchKind::INVALID;
|
|
}
|
|
|
|
// ARM, Thumb, AArch64
|
|
ARM::ISAKind ARM::parseArchISA(StringRef Arch) {
|
|
return StringSwitch<ARM::ISAKind>(Arch)
|
|
.StartsWith("aarch64", ARM::ISAKind::AARCH64)
|
|
.StartsWith("arm64", ARM::ISAKind::AARCH64)
|
|
.StartsWith("thumb", ARM::ISAKind::THUMB)
|
|
.StartsWith("arm", ARM::ISAKind::ARM)
|
|
.Default(ARM::ISAKind::INVALID);
|
|
}
|
|
|
|
// Little/Big endian
|
|
ARM::EndianKind ARM::parseArchEndian(StringRef Arch) {
|
|
if (Arch.startswith("armeb") || Arch.startswith("thumbeb") ||
|
|
Arch.startswith("aarch64_be"))
|
|
return ARM::EndianKind::BIG;
|
|
|
|
if (Arch.startswith("arm") || Arch.startswith("thumb")) {
|
|
if (Arch.endswith("eb"))
|
|
return ARM::EndianKind::BIG;
|
|
else
|
|
return ARM::EndianKind::LITTLE;
|
|
}
|
|
|
|
if (Arch.startswith("aarch64"))
|
|
return ARM::EndianKind::LITTLE;
|
|
|
|
return ARM::EndianKind::INVALID;
|
|
}
|
|
|
|
// Profile A/R/M
|
|
ARM::ProfileKind ARM::parseArchProfile(StringRef Arch) {
|
|
Arch = getCanonicalArchName(Arch);
|
|
switch (parseArch(Arch)) {
|
|
case ARM::ArchKind::ARMV6M:
|
|
case ARM::ArchKind::ARMV7M:
|
|
case ARM::ArchKind::ARMV7EM:
|
|
case ARM::ArchKind::ARMV8MMainline:
|
|
case ARM::ArchKind::ARMV8MBaseline:
|
|
return ARM::ProfileKind::M;
|
|
case ARM::ArchKind::ARMV7R:
|
|
case ARM::ArchKind::ARMV8R:
|
|
return ARM::ProfileKind::R;
|
|
case ARM::ArchKind::ARMV7A:
|
|
case ARM::ArchKind::ARMV7VE:
|
|
case ARM::ArchKind::ARMV7K:
|
|
case ARM::ArchKind::ARMV8A:
|
|
case ARM::ArchKind::ARMV8_1A:
|
|
case ARM::ArchKind::ARMV8_2A:
|
|
case ARM::ArchKind::ARMV8_3A:
|
|
return ARM::ProfileKind::A;
|
|
case ARM::ArchKind::ARMV2:
|
|
case ARM::ArchKind::ARMV2A:
|
|
case ARM::ArchKind::ARMV3:
|
|
case ARM::ArchKind::ARMV3M:
|
|
case ARM::ArchKind::ARMV4:
|
|
case ARM::ArchKind::ARMV4T:
|
|
case ARM::ArchKind::ARMV5T:
|
|
case ARM::ArchKind::ARMV5TE:
|
|
case ARM::ArchKind::ARMV5TEJ:
|
|
case ARM::ArchKind::ARMV6:
|
|
case ARM::ArchKind::ARMV6K:
|
|
case ARM::ArchKind::ARMV6T2:
|
|
case ARM::ArchKind::ARMV6KZ:
|
|
case ARM::ArchKind::ARMV7S:
|
|
case ARM::ArchKind::IWMMXT:
|
|
case ARM::ArchKind::IWMMXT2:
|
|
case ARM::ArchKind::XSCALE:
|
|
case ARM::ArchKind::INVALID:
|
|
return ARM::ProfileKind::INVALID;
|
|
}
|
|
llvm_unreachable("Unhandled architecture");
|
|
}
|
|
|
|
// Version number (ex. v7 = 7).
|
|
unsigned llvm::ARM::parseArchVersion(StringRef Arch) {
|
|
Arch = getCanonicalArchName(Arch);
|
|
switch (parseArch(Arch)) {
|
|
case ARM::ArchKind::ARMV2:
|
|
case ARM::ArchKind::ARMV2A:
|
|
return 2;
|
|
case ARM::ArchKind::ARMV3:
|
|
case ARM::ArchKind::ARMV3M:
|
|
return 3;
|
|
case ARM::ArchKind::ARMV4:
|
|
case ARM::ArchKind::ARMV4T:
|
|
return 4;
|
|
case ARM::ArchKind::ARMV5T:
|
|
case ARM::ArchKind::ARMV5TE:
|
|
case ARM::ArchKind::IWMMXT:
|
|
case ARM::ArchKind::IWMMXT2:
|
|
case ARM::ArchKind::XSCALE:
|
|
case ARM::ArchKind::ARMV5TEJ:
|
|
return 5;
|
|
case ARM::ArchKind::ARMV6:
|
|
case ARM::ArchKind::ARMV6K:
|
|
case ARM::ArchKind::ARMV6T2:
|
|
case ARM::ArchKind::ARMV6KZ:
|
|
case ARM::ArchKind::ARMV6M:
|
|
return 6;
|
|
case ARM::ArchKind::ARMV7A:
|
|
case ARM::ArchKind::ARMV7VE:
|
|
case ARM::ArchKind::ARMV7R:
|
|
case ARM::ArchKind::ARMV7M:
|
|
case ARM::ArchKind::ARMV7S:
|
|
case ARM::ArchKind::ARMV7EM:
|
|
case ARM::ArchKind::ARMV7K:
|
|
return 7;
|
|
case ARM::ArchKind::ARMV8A:
|
|
case ARM::ArchKind::ARMV8_1A:
|
|
case ARM::ArchKind::ARMV8_2A:
|
|
case ARM::ArchKind::ARMV8_3A:
|
|
case ARM::ArchKind::ARMV8R:
|
|
case ARM::ArchKind::ARMV8MBaseline:
|
|
case ARM::ArchKind::ARMV8MMainline:
|
|
return 8;
|
|
case ARM::ArchKind::INVALID:
|
|
return 0;
|
|
}
|
|
llvm_unreachable("Unhandled architecture");
|
|
}
|
|
|
|
StringRef llvm::ARM::computeDefaultTargetABI(const Triple &TT, StringRef CPU) {
|
|
StringRef ArchName =
|
|
CPU.empty() ? TT.getArchName() : ARM::getArchName(ARM::parseCPUArch(CPU));
|
|
|
|
if (TT.isOSBinFormatMachO()) {
|
|
if (TT.getEnvironment() == Triple::EABI ||
|
|
TT.getOS() == Triple::UnknownOS ||
|
|
llvm::ARM::parseArchProfile(ArchName) == ARM::ProfileKind::M)
|
|
return "aapcs";
|
|
if (TT.isWatchABI())
|
|
return "aapcs16";
|
|
return "apcs-gnu";
|
|
} else if (TT.isOSWindows())
|
|
// FIXME: this is invalid for WindowsCE.
|
|
return "aapcs";
|
|
|
|
// Select the default based on the platform.
|
|
switch (TT.getEnvironment()) {
|
|
case Triple::Android:
|
|
case Triple::GNUEABI:
|
|
case Triple::GNUEABIHF:
|
|
case Triple::MuslEABI:
|
|
case Triple::MuslEABIHF:
|
|
return "aapcs-linux";
|
|
case Triple::EABIHF:
|
|
case Triple::EABI:
|
|
return "aapcs";
|
|
default:
|
|
if (TT.isOSNetBSD())
|
|
return "apcs-gnu";
|
|
if (TT.isOSOpenBSD())
|
|
return "aapcs-linux";
|
|
return "aapcs";
|
|
}
|
|
}
|
|
|
|
StringRef llvm::AArch64::getCanonicalArchName(StringRef Arch) {
|
|
return ARM::getCanonicalArchName(Arch);
|
|
}
|
|
|
|
unsigned llvm::AArch64::parseFPU(StringRef FPU) {
|
|
return ARM::parseFPU(FPU);
|
|
}
|
|
|
|
// Allows partial match, ex. "v8a" matches "armv8a".
|
|
AArch64::ArchKind AArch64::parseArch(StringRef Arch) {
|
|
Arch = getCanonicalArchName(Arch);
|
|
if (checkArchVersion(Arch) < 8)
|
|
return ArchKind::INVALID;
|
|
|
|
StringRef Syn = getArchSynonym(Arch);
|
|
for (const auto A : AArch64ARCHNames) {
|
|
if (A.getName().endswith(Syn))
|
|
return A.ID;
|
|
}
|
|
return ArchKind::INVALID;
|
|
}
|
|
|
|
AArch64::ArchExtKind llvm::AArch64::parseArchExt(StringRef ArchExt) {
|
|
for (const auto A : AArch64ARCHExtNames) {
|
|
if (ArchExt == A.getName())
|
|
return static_cast<ArchExtKind>(A.ID);
|
|
}
|
|
return AArch64::AEK_INVALID;
|
|
}
|
|
|
|
AArch64::ArchKind llvm::AArch64::parseCPUArch(StringRef CPU) {
|
|
for (const auto C : AArch64CPUNames) {
|
|
if (CPU == C.getName())
|
|
return C.ArchID;
|
|
}
|
|
return ArchKind::INVALID;
|
|
}
|
|
|
|
// ARM, Thumb, AArch64
|
|
ARM::ISAKind AArch64::parseArchISA(StringRef Arch) {
|
|
return ARM::parseArchISA(Arch);
|
|
}
|
|
|
|
// Little/Big endian
|
|
ARM::EndianKind AArch64::parseArchEndian(StringRef Arch) {
|
|
return ARM::parseArchEndian(Arch);
|
|
}
|
|
|
|
// Profile A/R/M
|
|
ARM::ProfileKind AArch64::parseArchProfile(StringRef Arch) {
|
|
return ARM::parseArchProfile(Arch);
|
|
}
|
|
|
|
// Version number (ex. v8 = 8).
|
|
unsigned llvm::AArch64::parseArchVersion(StringRef Arch) {
|
|
return ARM::parseArchVersion(Arch);
|
|
}
|