Merge branch 'main' of github.com:llvm/llvm-project into loop-vectorize/evl-VPWidenIntOrFpInductionRecipe

Author: lukel97

.github/new-prs-labeler.yml

@@ -777,6 +777,10 @@ backend:NVPTX:
   - 'llvm/**/*nvptx*/**'
   - 'llvm/**/*NVPTX*/**'
 
+backend:MIPS:
+  - '**/*mips*'
+  - '**/*Mips*'
+
 backend:RISC-V:
   - clang/**/*riscv*
   - clang/**/*RISCV*

.github/workflows/libcxx-restart-preempted-jobs.yaml

@@ -33,7 +33,7 @@ jobs:
         with:
           script: |
             const failure_regex = /Process completed with exit code 1./
-            const preemption_regex = /The runner has received a shutdown signal/
+            const preemption_regex = /(The runner has received a shutdown signal)|(The operation was canceled)/
 
             const wf_run = context.payload.workflow_run
             core.notice(`Running on "${wf_run.display_title}" by @${wf_run.actor.login} (event: ${wf_run.event})\nWorkflow run URL: ${wf_run.html_url}`)

bolt/include/bolt/Passes/PAuthGadgetScanner.h

@@ -199,8 +199,7 @@ namespace PAuthGadgetScanner {
 // to distinguish intermediate and final results at the type level.
 //
 // Here is an overview of issue life-cycle:
-// * an analysis (SrcSafetyAnalysis at now, DstSafetyAnalysis will be added
-//   later to support the detection of authentication oracles) computes register
+// * an analysis (SrcSafetyAnalysis or DstSafetyAnalysis) computes register
 //   state for each instruction in the function.
 // * for each instruction, it is checked whether it is a gadget of some kind,
 //   taking the computed state into account. If a gadget is found, its kind
@@ -273,6 +272,11 @@ class ExtraInfo {
   virtual ~ExtraInfo() {}
 };
 
+/// The set of instructions writing to the affected register in an unsafe
+/// manner.
+///
+/// This is a hint to be printed alongside the report. It should be further
+/// analyzed by the user.
 class ClobberingInfo : public ExtraInfo {
   SmallVector<MCInstReference> ClobberingInstrs;
 
@@ -282,6 +286,20 @@ class ClobberingInfo : public ExtraInfo {
   void print(raw_ostream &OS, const MCInstReference Location) const override;
 };
 
+/// The set of instructions leaking the authenticated pointer before the
+/// result of authentication was checked.
+///
+/// This is a hint to be printed alongside the report. It should be further
+/// analyzed by the user.
+class LeakageInfo : public ExtraInfo {
+  SmallVector<MCInstReference> LeakingInstrs;
+
+public:
+  LeakageInfo(ArrayRef<MCInstReference> Instrs) : LeakingInstrs(Instrs) {}
+
+  void print(raw_ostream &OS, const MCInstReference Location) const override;
+};
+
 /// A brief version of a report that can be further augmented with the details.
 ///
 /// A half-baked report produced on the first run of the analysis. An extra,
@@ -322,6 +340,9 @@ class FunctionAnalysisContext {
   void findUnsafeUses(SmallVector<PartialReport<MCPhysReg>> &Reports);
   void augmentUnsafeUseReports(ArrayRef<PartialReport<MCPhysReg>> Reports);
 
+  void findUnsafeDefs(SmallVector<PartialReport<MCPhysReg>> &Reports);
+  void augmentUnsafeDefReports(ArrayRef<PartialReport<MCPhysReg>> Reports);
+
   /// Process the reports which do not have to be augmented, and remove them
   /// from Reports.
   void handleSimpleReports(SmallVector<PartialReport<MCPhysReg>> &Reports);

bolt/include/bolt/Profile/DataAggregator.h

@@ -85,6 +85,8 @@ class DataAggregator : public DataReader {
   };
   friend raw_ostream &operator<<(raw_ostream &OS, const LBREntry &);
 
+  friend struct PerfSpeEventsTestHelper;
+
   struct PerfBranchSample {
     SmallVector<LBREntry, 32> LBR;
   };

bolt/include/bolt/Utils/CommandLineOpts.h

@@ -48,6 +48,7 @@ extern llvm::cl::OptionCategory BinaryAnalysisCategory;
 extern llvm::cl::opt<unsigned> AlignText;
 extern llvm::cl::opt<unsigned> AlignFunctions;
 extern llvm::cl::opt<bool> AggregateOnly;
+extern llvm::cl::opt<bool> ArmSPE;
 extern llvm::cl::opt<unsigned> BucketsPerLine;
 extern llvm::cl::opt<bool> CompactCodeModel;
 extern llvm::cl::opt<bool> DiffOnly;