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| author | Dimitry Andric <dim@FreeBSD.org> | 2024-08-25 10:56:24 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2024-08-25 10:56:24 +0000 |
| commit | adf62863f35c84e4c5708f3dc5a1589ce958a238 (patch) | |
| tree | 924e88089bbec100de08015b4e496261eb6f2d66 /llvm/utils/TableGen/ARMTargetDefEmitter.cpp | |
| parent | 9b9503334fa856ed4ed6823d35b6f52546296f77 (diff) | |
Vendor import of llvm-project branch release/19.x llvmorg-19.1.0-rc3-0-g437434df21d8.vendor/llvm-project/llvmorg-19.1.0-rc3-0-g437434df21d8
Diffstat (limited to 'llvm/utils/TableGen/ARMTargetDefEmitter.cpp')
| -rw-r--r-- | llvm/utils/TableGen/ARMTargetDefEmitter.cpp | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/llvm/utils/TableGen/ARMTargetDefEmitter.cpp b/llvm/utils/TableGen/ARMTargetDefEmitter.cpp index a4b25025b3c6..71ca331461c0 100644 --- a/llvm/utils/TableGen/ARMTargetDefEmitter.cpp +++ b/llvm/utils/TableGen/ARMTargetDefEmitter.cpp @@ -19,10 +19,38 @@ #include "llvm/TableGen/Record.h" #include "llvm/TableGen/TableGenBackend.h" #include <cstdint> +#include <set> #include <string> using namespace llvm; +/// Collect the full set of implied features for a SubtargetFeature. +static void CollectImpliedFeatures(std::set<Record *> &SeenFeats, Record *Rec) { + assert(Rec->isSubClassOf("SubtargetFeature") && + "Rec is not a SubtargetFeature"); + + SeenFeats.insert(Rec); + for (Record *Implied : Rec->getValueAsListOfDefs("Implies")) + CollectImpliedFeatures(SeenFeats, Implied); +} + +static void CheckFeatureTree(Record *Root) { + std::set<Record *> SeenFeats; + CollectImpliedFeatures(SeenFeats, Root); + + // Check that each of the mandatory (implied) features which is an + // ExtensionWithMArch is also enabled by default. + auto DefaultExtsVec = Root->getValueAsListOfDefs("DefaultExts"); + std::set<Record *> DefaultExts{DefaultExtsVec.begin(), DefaultExtsVec.end()}; + for (auto *Feat : SeenFeats) { + if (Feat->isSubClassOf("ExtensionWithMArch") && !DefaultExts.count(Feat)) + PrintFatalError(Root->getLoc(), + "ExtensionWithMArch " + Feat->getName() + + " is implied (mandatory) as a SubtargetFeature, but " + "is not present in DefaultExts"); + } +} + static void EmitARMTargetDef(RecordKeeper &RK, raw_ostream &OS) { OS << "// Autogenerated by ARMTargetDefEmitter.cpp\n\n"; @@ -283,9 +311,7 @@ static void EmitARMTargetDef(RecordKeeper &RK, raw_ostream &OS) { auto Profile = Arch->getValueAsString("Profile"); auto ArchInfo = ArchInfoName(Major, Minor, Profile); - // The apple-latest alias is backend only, do not expose it to -mcpu. - if (Name == "apple-latest") - continue; + CheckFeatureTree(Arch); OS << " {\n" << " \"" << Name << "\",\n" |