Restoring authorship annotation for <orivej@yandex-team.ru>. Commit 2 of 2.

1 files changed, 171 insertions, 171 deletions

diff --git a/contrib/libs/llvm12/lib/CodeGen/MachineDebugify.cpp b/contrib/libs/llvm12/lib/CodeGen/MachineDebugify.cpp
index f9ae218aa5..599a818475 100644
--- a/contrib/libs/llvm12/lib/CodeGen/MachineDebugify.cpp
+++ b/contrib/libs/llvm12/lib/CodeGen/MachineDebugify.cpp
@@ -1,140 +1,140 @@
-//===- MachineDebugify.cpp - Attach synthetic debug info to everything ----===// 
-// 
-// 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 This pass attaches synthetic debug info to everything. It can be used 
-/// to create targeted tests for debug info preservation, or test for CodeGen 
-/// differences with vs. without debug info. 
-/// 
-/// This isn't intended to have feature parity with Debugify. 
-//===----------------------------------------------------------------------===// 
- 
-#include "llvm/ADT/DenseMap.h" 
+//===- MachineDebugify.cpp - Attach synthetic debug info to everything ----===//
+//
+// 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 This pass attaches synthetic debug info to everything. It can be used
+/// to create targeted tests for debug info preservation, or test for CodeGen
+/// differences with vs. without debug info.
+///
+/// This isn't intended to have feature parity with Debugify.
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/SmallSet.h"
-#include "llvm/ADT/SmallVector.h" 
-#include "llvm/CodeGen/MachineFunctionPass.h" 
-#include "llvm/CodeGen/MachineInstrBuilder.h" 
-#include "llvm/CodeGen/MachineModuleInfo.h" 
-#include "llvm/CodeGen/Passes.h" 
-#include "llvm/CodeGen/TargetInstrInfo.h" 
-#include "llvm/CodeGen/TargetSubtargetInfo.h" 
-#include "llvm/IR/DIBuilder.h" 
-#include "llvm/IR/DebugInfo.h" 
-#include "llvm/IR/IntrinsicInst.h" 
-#include "llvm/InitializePasses.h" 
-#include "llvm/Transforms/Utils/Debugify.h" 
- 
-#define DEBUG_TYPE "mir-debugify" 
- 
-using namespace llvm; 
- 
-namespace { 
-bool applyDebugifyMetadataToMachineFunction(MachineModuleInfo &MMI, 
-                                            DIBuilder &DIB, Function &F) { 
-  MachineFunction *MaybeMF = MMI.getMachineFunction(F); 
-  if (!MaybeMF) 
-    return false; 
-  MachineFunction &MF = *MaybeMF; 
-  const TargetInstrInfo &TII = *MF.getSubtarget().getInstrInfo(); 
- 
-  DISubprogram *SP = F.getSubprogram(); 
-  assert(SP && "IR Debugify just created it?"); 
- 
-  Module &M = *F.getParent(); 
-  LLVMContext &Ctx = M.getContext(); 
- 
-  unsigned NextLine = SP->getLine(); 
-  for (MachineBasicBlock &MBB : MF) { 
-    for (MachineInstr &MI : MBB) { 
-      // This will likely emit line numbers beyond the end of the imagined 
-      // source function and into subsequent ones. We don't do anything about 
-      // that as it doesn't really matter to the compiler where the line is in 
-      // the imaginary source code. 
-      MI.setDebugLoc(DILocation::get(Ctx, NextLine++, 1, SP)); 
-    } 
-  } 
- 
-  // Find local variables defined by debugify. No attempt is made to match up 
-  // MIR-level regs to the 'correct' IR-level variables: there isn't a simple 
-  // way to do that, and it isn't necessary to find interesting CodeGen bugs. 
-  // Instead, simply keep track of one variable per line. Later, we can insert 
-  // DBG_VALUE insts that point to these local variables. Emitting DBG_VALUEs 
-  // which cover a wide range of lines can help stress the debug info passes: 
-  // if we can't do that, fall back to using the local variable which precedes 
-  // all the others. 
-  Function *DbgValF = M.getFunction("llvm.dbg.value"); 
-  DbgValueInst *EarliestDVI = nullptr; 
-  DenseMap<unsigned, DILocalVariable *> Line2Var; 
-  DIExpression *Expr = nullptr; 
-  if (DbgValF) { 
-    for (const Use &U : DbgValF->uses()) { 
-      auto *DVI = dyn_cast<DbgValueInst>(U.getUser()); 
-      if (!DVI || DVI->getFunction() != &F) 
-        continue; 
-      unsigned Line = DVI->getDebugLoc().getLine(); 
-      assert(Line != 0 && "debugify should not insert line 0 locations"); 
-      Line2Var[Line] = DVI->getVariable(); 
-      if (!EarliestDVI || Line < EarliestDVI->getDebugLoc().getLine()) 
-        EarliestDVI = DVI; 
-      Expr = DVI->getExpression(); 
-    } 
-  } 
-  if (Line2Var.empty()) 
-    return true; 
- 
-  // Now, try to insert a DBG_VALUE instruction after each real instruction. 
-  // Do this by introducing debug uses of each register definition. If that is 
-  // not possible (e.g. we have a phi or a meta instruction), emit a constant. 
-  uint64_t NextImm = 0; 
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/CodeGen/MachineFunctionPass.h"
+#include "llvm/CodeGen/MachineInstrBuilder.h"
+#include "llvm/CodeGen/MachineModuleInfo.h"
+#include "llvm/CodeGen/Passes.h"
+#include "llvm/CodeGen/TargetInstrInfo.h"
+#include "llvm/CodeGen/TargetSubtargetInfo.h"
+#include "llvm/IR/DIBuilder.h"
+#include "llvm/IR/DebugInfo.h"
+#include "llvm/IR/IntrinsicInst.h"
+#include "llvm/InitializePasses.h"
+#include "llvm/Transforms/Utils/Debugify.h"
+
+#define DEBUG_TYPE "mir-debugify"
+
+using namespace llvm;
+
+namespace {
+bool applyDebugifyMetadataToMachineFunction(MachineModuleInfo &MMI,
+                                            DIBuilder &DIB, Function &F) {
+  MachineFunction *MaybeMF = MMI.getMachineFunction(F);
+  if (!MaybeMF)
+    return false;
+  MachineFunction &MF = *MaybeMF;
+  const TargetInstrInfo &TII = *MF.getSubtarget().getInstrInfo();
+
+  DISubprogram *SP = F.getSubprogram();
+  assert(SP && "IR Debugify just created it?");
+
+  Module &M = *F.getParent();
+  LLVMContext &Ctx = M.getContext();
+
+  unsigned NextLine = SP->getLine();
+  for (MachineBasicBlock &MBB : MF) {
+    for (MachineInstr &MI : MBB) {
+      // This will likely emit line numbers beyond the end of the imagined
+      // source function and into subsequent ones. We don't do anything about
+      // that as it doesn't really matter to the compiler where the line is in
+      // the imaginary source code.
+      MI.setDebugLoc(DILocation::get(Ctx, NextLine++, 1, SP));
+    }
+  }
+
+  // Find local variables defined by debugify. No attempt is made to match up
+  // MIR-level regs to the 'correct' IR-level variables: there isn't a simple
+  // way to do that, and it isn't necessary to find interesting CodeGen bugs.
+  // Instead, simply keep track of one variable per line. Later, we can insert
+  // DBG_VALUE insts that point to these local variables. Emitting DBG_VALUEs
+  // which cover a wide range of lines can help stress the debug info passes:
+  // if we can't do that, fall back to using the local variable which precedes
+  // all the others.
+  Function *DbgValF = M.getFunction("llvm.dbg.value");
+  DbgValueInst *EarliestDVI = nullptr;
+  DenseMap<unsigned, DILocalVariable *> Line2Var;
+  DIExpression *Expr = nullptr;
+  if (DbgValF) {
+    for (const Use &U : DbgValF->uses()) {
+      auto *DVI = dyn_cast<DbgValueInst>(U.getUser());
+      if (!DVI || DVI->getFunction() != &F)
+        continue;
+      unsigned Line = DVI->getDebugLoc().getLine();
+      assert(Line != 0 && "debugify should not insert line 0 locations");
+      Line2Var[Line] = DVI->getVariable();
+      if (!EarliestDVI || Line < EarliestDVI->getDebugLoc().getLine())
+        EarliestDVI = DVI;
+      Expr = DVI->getExpression();
+    }
+  }
+  if (Line2Var.empty())
+    return true;
+
+  // Now, try to insert a DBG_VALUE instruction after each real instruction.
+  // Do this by introducing debug uses of each register definition. If that is
+  // not possible (e.g. we have a phi or a meta instruction), emit a constant.
+  uint64_t NextImm = 0;
   SmallSet<DILocalVariable *, 16> VarSet;
-  const MCInstrDesc &DbgValDesc = TII.get(TargetOpcode::DBG_VALUE); 
-  for (MachineBasicBlock &MBB : MF) { 
-    MachineBasicBlock::iterator FirstNonPHIIt = MBB.getFirstNonPHI(); 
+  const MCInstrDesc &DbgValDesc = TII.get(TargetOpcode::DBG_VALUE);
+  for (MachineBasicBlock &MBB : MF) {
+    MachineBasicBlock::iterator FirstNonPHIIt = MBB.getFirstNonPHI();
     for (auto I = MBB.begin(), E = MBB.end(); I != E;) {
-      MachineInstr &MI = *I; 
-      ++I; 
- 
-      // `I` may point to a DBG_VALUE created in the previous loop iteration. 
-      if (MI.isDebugInstr()) 
-        continue; 
- 
-      // It's not allowed to insert DBG_VALUEs after a terminator. 
-      if (MI.isTerminator()) 
-        continue; 
- 
-      // Find a suitable insertion point for the DBG_VALUE. 
-      auto InsertBeforeIt = MI.isPHI() ? FirstNonPHIIt : I; 
- 
-      // Find a suitable local variable for the DBG_VALUE. 
-      unsigned Line = MI.getDebugLoc().getLine(); 
-      if (!Line2Var.count(Line)) 
-        Line = EarliestDVI->getDebugLoc().getLine(); 
-      DILocalVariable *LocalVar = Line2Var[Line]; 
-      assert(LocalVar && "No variable for current line?"); 
+      MachineInstr &MI = *I;
+      ++I;
+
+      // `I` may point to a DBG_VALUE created in the previous loop iteration.
+      if (MI.isDebugInstr())
+        continue;
+
+      // It's not allowed to insert DBG_VALUEs after a terminator.
+      if (MI.isTerminator())
+        continue;
+
+      // Find a suitable insertion point for the DBG_VALUE.
+      auto InsertBeforeIt = MI.isPHI() ? FirstNonPHIIt : I;
+
+      // Find a suitable local variable for the DBG_VALUE.
+      unsigned Line = MI.getDebugLoc().getLine();
+      if (!Line2Var.count(Line))
+        Line = EarliestDVI->getDebugLoc().getLine();
+      DILocalVariable *LocalVar = Line2Var[Line];
+      assert(LocalVar && "No variable for current line?");
       VarSet.insert(LocalVar);
- 
-      // Emit DBG_VALUEs for register definitions. 
-      SmallVector<MachineOperand *, 4> RegDefs; 
-      for (MachineOperand &MO : MI.operands()) 
-        if (MO.isReg() && MO.isDef() && MO.getReg()) 
-          RegDefs.push_back(&MO); 
-      for (MachineOperand *MO : RegDefs) 
-        BuildMI(MBB, InsertBeforeIt, MI.getDebugLoc(), DbgValDesc, 
-                /*IsIndirect=*/false, *MO, LocalVar, Expr); 
- 
-      // OK, failing that, emit a constant DBG_VALUE. 
-      if (RegDefs.empty()) { 
-        auto ImmOp = MachineOperand::CreateImm(NextImm++); 
-        BuildMI(MBB, InsertBeforeIt, MI.getDebugLoc(), DbgValDesc, 
-                /*IsIndirect=*/false, ImmOp, LocalVar, Expr); 
-      } 
-    } 
-  } 
- 
+
+      // Emit DBG_VALUEs for register definitions.
+      SmallVector<MachineOperand *, 4> RegDefs;
+      for (MachineOperand &MO : MI.operands())
+        if (MO.isReg() && MO.isDef() && MO.getReg())
+          RegDefs.push_back(&MO);
+      for (MachineOperand *MO : RegDefs)
+        BuildMI(MBB, InsertBeforeIt, MI.getDebugLoc(), DbgValDesc,
+                /*IsIndirect=*/false, *MO, LocalVar, Expr);
+
+      // OK, failing that, emit a constant DBG_VALUE.
+      if (RegDefs.empty()) {
+        auto ImmOp = MachineOperand::CreateImm(NextImm++);
+        BuildMI(MBB, InsertBeforeIt, MI.getDebugLoc(), DbgValDesc,
+                /*IsIndirect=*/false, ImmOp, LocalVar, Expr);
+      }
+    }
+  }
+
   // Here we save the number of lines and variables into "llvm.mir.debugify".
   // It is useful for mir-check-debugify.
   NamedMDNode *NMD = M.getNamedMetadata("llvm.mir.debugify");
@@ -162,41 +162,41 @@ bool applyDebugifyMetadataToMachineFunction(MachineModuleInfo &MMI,
     setDebugifyOperand(1, VarSet.size());
   }
 
-  return true; 
-} 
- 
-/// ModulePass for attaching synthetic debug info to everything, used with the 
-/// legacy module pass manager. 
-struct DebugifyMachineModule : public ModulePass { 
-  bool runOnModule(Module &M) override { 
-    MachineModuleInfo &MMI = 
-        getAnalysis<MachineModuleInfoWrapperPass>().getMMI(); 
-    return applyDebugifyMetadata( 
-        M, M.functions(), 
-        "ModuleDebugify: ", [&](DIBuilder &DIB, Function &F) -> bool { 
-          return applyDebugifyMetadataToMachineFunction(MMI, DIB, F); 
-        }); 
-  } 
- 
-  DebugifyMachineModule() : ModulePass(ID) {} 
- 
-  void getAnalysisUsage(AnalysisUsage &AU) const override { 
-    AU.addRequired<MachineModuleInfoWrapperPass>(); 
-    AU.addPreserved<MachineModuleInfoWrapperPass>(); 
-    AU.setPreservesCFG(); 
-  } 
- 
-  static char ID; // Pass identification. 
-}; 
-char DebugifyMachineModule::ID = 0; 
- 
-} // end anonymous namespace 
- 
-INITIALIZE_PASS_BEGIN(DebugifyMachineModule, DEBUG_TYPE, 
-                      "Machine Debugify Module", false, false) 
-INITIALIZE_PASS_END(DebugifyMachineModule, DEBUG_TYPE, 
-                    "Machine Debugify Module", false, false) 
- 
-ModulePass *llvm::createDebugifyMachineModulePass() { 
-  return new DebugifyMachineModule(); 
-} 
+  return true;
+}
+
+/// ModulePass for attaching synthetic debug info to everything, used with the
+/// legacy module pass manager.
+struct DebugifyMachineModule : public ModulePass {
+  bool runOnModule(Module &M) override {
+    MachineModuleInfo &MMI =
+        getAnalysis<MachineModuleInfoWrapperPass>().getMMI();
+    return applyDebugifyMetadata(
+        M, M.functions(),
+        "ModuleDebugify: ", [&](DIBuilder &DIB, Function &F) -> bool {
+          return applyDebugifyMetadataToMachineFunction(MMI, DIB, F);
+        });
+  }
+
+  DebugifyMachineModule() : ModulePass(ID) {}
+
+  void getAnalysisUsage(AnalysisUsage &AU) const override {
+    AU.addRequired<MachineModuleInfoWrapperPass>();
+    AU.addPreserved<MachineModuleInfoWrapperPass>();
+    AU.setPreservesCFG();
+  }
+
+  static char ID; // Pass identification.
+};
+char DebugifyMachineModule::ID = 0;
+
+} // end anonymous namespace
+
+INITIALIZE_PASS_BEGIN(DebugifyMachineModule, DEBUG_TYPE,
+                      "Machine Debugify Module", false, false)
+INITIALIZE_PASS_END(DebugifyMachineModule, DEBUG_TYPE,
+                    "Machine Debugify Module", false, false)
+
+ModulePass *llvm::createDebugifyMachineModulePass() {
+  return new DebugifyMachineModule();
+}