Files
RedBear-OS/local/recipes/dev/libclc/source/llvm/lib/TargetParser/SubtargetFeature.cpp
T
vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class)
verify-patch-sanity.py validates every active recipe .patch has internally-
consistent hunk line counts — catching the 'malformed patch at line N' failure
at commit/CI/preflight time instead of hours into a cook. This cycle hit that
class three times (qtwaylandscanner, sddm, xwayland), each only discovered when
cookbook tried to apply the patch.

Running it across the repo found 29 latent malformed patches (validated against
GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22').
They were harmless only because they sit in vendored recipes (baked, not re-
applied) — but would fail on any version-bump re-derivation. --fix recounts the
hunk headers (body untouched) and repaired all 29.

Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test
(test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats
(empty placeholders, bare-@@ git hunks).
2026-08-01 05:13:02 +03:00

85 lines
2.7 KiB
C++

//===- SubtargetFeature.cpp - CPU characteristics Implementation ----------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
/// \file Implements the SubtargetFeature interface.
//
//===----------------------------------------------------------------------===//
#include "llvm/TargetParser/SubtargetFeature.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/TargetParser/Triple.h"
#include <string>
#include <vector>
using namespace llvm;
/// Splits a string of comma separated items in to a vector of strings.
void SubtargetFeatures::Split(std::vector<std::string> &V, StringRef S) {
SmallVector<StringRef, 3> Tmp;
S.split(Tmp, ',', -1, false /* KeepEmpty */);
V.reserve(Tmp.size());
for (StringRef T : Tmp)
V.push_back(std::string(T));
}
void SubtargetFeatures::AddFeature(StringRef String, bool Enable) {
// Don't add empty features.
if (!String.empty())
// Convert to lowercase, prepend flag if we don't already have a flag.
Features.push_back(hasFlag(String) ? String.lower()
: (Enable ? "+" : "-") + String.lower());
}
void SubtargetFeatures::addFeaturesVector(
const ArrayRef<std::string> OtherFeatures) {
llvm::append_range(Features, OtherFeatures);
}
SubtargetFeatures::SubtargetFeatures(StringRef Initial) {
// Break up string into separate features
Split(Features, Initial);
}
std::string SubtargetFeatures::getString() const {
return join(Features.begin(), Features.end(), ",");
}
void SubtargetFeatures::print(raw_ostream &OS) const {
for (const auto &F : Features)
OS << F << " ";
OS << "\n";
}
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
LLVM_DUMP_METHOD void SubtargetFeatures::dump() const {
print(dbgs());
}
#endif
void SubtargetFeatures::getDefaultSubtargetFeatures(const Triple& Triple) {
// FIXME: This is an inelegant way of specifying the features of a
// subtarget. It would be better if we could encode this information
// into the IR.
if (Triple.getVendor() == Triple::Apple) {
if (Triple.getArch() == Triple::ppc) {
// powerpc-apple-*
AddFeature("altivec");
} else if (Triple.getArch() == Triple::ppc64) {
// powerpc64-apple-*
AddFeature("64bit");
AddFeature("altivec");
}
}
}