vasilito
cb424d7448
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).
102 lines
3.0 KiB
C++
102 lines
3.0 KiB
C++
//===- AliasAnalysis.cpp - Alias Analysis for MLIR ------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Analysis/AliasAnalysis.h"
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#include "mlir/Analysis/AliasAnalysis/LocalAliasAnalysis.h"
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#include "mlir/IR/Operation.h"
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#include "mlir/IR/Value.h"
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#include "mlir/Support/LLVM.h"
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#include <memory>
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using namespace mlir;
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//===----------------------------------------------------------------------===//
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// AliasResult
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//===----------------------------------------------------------------------===//
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/// Merge this alias result with `other` and return a new result that
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/// represents the conservative merge of both results.
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AliasResult AliasResult::merge(AliasResult other) const {
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if (kind == other.kind)
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return *this;
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// A mix of PartialAlias and MustAlias is PartialAlias.
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if ((isPartial() && other.isMust()) || (other.isPartial() && isMust()))
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return PartialAlias;
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// Otherwise, don't assume anything.
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return MayAlias;
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}
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void AliasResult::print(raw_ostream &os) const {
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switch (kind) {
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case Kind::NoAlias:
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os << "NoAlias";
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break;
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case Kind::MayAlias:
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os << "MayAlias";
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break;
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case Kind::PartialAlias:
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os << "PartialAlias";
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break;
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case Kind::MustAlias:
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os << "MustAlias";
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break;
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}
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}
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//===----------------------------------------------------------------------===//
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// ModRefResult
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//===----------------------------------------------------------------------===//
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void ModRefResult::print(raw_ostream &os) const {
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switch (kind) {
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case Kind::NoModRef:
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os << "NoModRef";
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break;
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case Kind::Ref:
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os << "Ref";
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break;
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case Kind::Mod:
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os << "Mod";
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break;
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case Kind::ModRef:
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os << "ModRef";
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break;
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}
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}
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//===----------------------------------------------------------------------===//
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// AliasAnalysis
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//===----------------------------------------------------------------------===//
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AliasAnalysis::AliasAnalysis(Operation *op) {
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addAnalysisImplementation(LocalAliasAnalysis());
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}
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AliasResult AliasAnalysis::alias(Value lhs, Value rhs) {
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// Check each of the alias analysis implemenations for an alias result.
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for (const std::unique_ptr<Concept> &aliasImpl : aliasImpls) {
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AliasResult result = aliasImpl->alias(lhs, rhs);
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if (!result.isMay())
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return result;
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}
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return AliasResult::MayAlias;
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}
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ModRefResult AliasAnalysis::getModRef(Operation *op, Value location) {
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// Compute the mod-ref behavior by refining a top `ModRef` result with each of
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// the alias analysis implementations. We early exit at the point where we
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// refine down to a `NoModRef`.
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ModRefResult result = ModRefResult::getModAndRef();
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for (const std::unique_ptr<Concept> &aliasImpl : aliasImpls) {
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result = result.intersect(aliasImpl->getModRef(op, location));
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if (result.isNoModRef())
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return result;
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}
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return result;
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}
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