Restoring authorship annotation for <shadchin@yandex-team.ru>. Commit 1 of 2.

1 files changed, 130 insertions, 130 deletions

diff --git a/contrib/libs/llvm12/lib/Target/BPF/BPFCheckAndAdjustIR.cpp b/contrib/libs/llvm12/lib/Target/BPF/BPFCheckAndAdjustIR.cpp
index 5239218ad0..c829f923b1 100644
--- a/contrib/libs/llvm12/lib/Target/BPF/BPFCheckAndAdjustIR.cpp
+++ b/contrib/libs/llvm12/lib/Target/BPF/BPFCheckAndAdjustIR.cpp
@@ -1,130 +1,130 @@
-//===------------ BPFCheckAndAdjustIR.cpp - Check and Adjust IR -----------===//
-//
-// 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
-//
-//===----------------------------------------------------------------------===//
-//
-// Check IR and adjust IR for verifier friendly codes.
-// The following are done for IR checking:
-//   - no relocation globals in PHI node.
-// The following are done for IR adjustment:
-//   - remove __builtin_bpf_passthrough builtins. Target independent IR
-//     optimizations are done and those builtins can be removed.
-//
-//===----------------------------------------------------------------------===//
-
-#include "BPF.h"
-#include "BPFCORE.h"
-#include "BPFTargetMachine.h"
-#include "llvm/IR/DebugInfoMetadata.h"
-#include "llvm/IR/GlobalVariable.h"
-#include "llvm/IR/Instruction.h"
-#include "llvm/IR/Instructions.h"
-#include "llvm/IR/Module.h"
-#include "llvm/IR/Type.h"
-#include "llvm/IR/User.h"
-#include "llvm/IR/Value.h"
-#include "llvm/Pass.h"
-#include "llvm/Transforms/Utils/BasicBlockUtils.h"
-
-#define DEBUG_TYPE "bpf-check-and-opt-ir"
-
-using namespace llvm;
-
-namespace {
-
-class BPFCheckAndAdjustIR final : public ModulePass {
-  bool runOnModule(Module &F) override;
-
-public:
-  static char ID;
-  BPFCheckAndAdjustIR() : ModulePass(ID) {}
-
-private:
-  void checkIR(Module &M);
-  bool adjustIR(Module &M);
-  bool removePassThroughBuiltin(Module &M);
-};
-} // End anonymous namespace
-
-char BPFCheckAndAdjustIR::ID = 0;
-INITIALIZE_PASS(BPFCheckAndAdjustIR, DEBUG_TYPE, "BPF Check And Adjust IR",
-                false, false)
-
-ModulePass *llvm::createBPFCheckAndAdjustIR() {
-  return new BPFCheckAndAdjustIR();
-}
-
-void BPFCheckAndAdjustIR::checkIR(Module &M) {
-  // Ensure relocation global won't appear in PHI node
-  // This may happen if the compiler generated the following code:
-  //   B1:
-  //      g1 = @llvm.skb_buff:0:1...
-  //      ...
-  //      goto B_COMMON
-  //   B2:
-  //      g2 = @llvm.skb_buff:0:2...
-  //      ...
-  //      goto B_COMMON
-  //   B_COMMON:
-  //      g = PHI(g1, g2)
-  //      x = load g
-  //      ...
-  // If anything likes the above "g = PHI(g1, g2)", issue a fatal error.
-  for (Function &F : M)
-    for (auto &BB : F)
-      for (auto &I : BB) {
-        PHINode *PN = dyn_cast<PHINode>(&I);
-        if (!PN || PN->use_empty())
-          continue;
-        for (int i = 0, e = PN->getNumIncomingValues(); i < e; ++i) {
-          auto *GV = dyn_cast<GlobalVariable>(PN->getIncomingValue(i));
-          if (!GV)
-            continue;
-          if (GV->hasAttribute(BPFCoreSharedInfo::AmaAttr) ||
-              GV->hasAttribute(BPFCoreSharedInfo::TypeIdAttr))
-            report_fatal_error("relocation global in PHI node");
-        }
-      }
-}
-
-bool BPFCheckAndAdjustIR::removePassThroughBuiltin(Module &M) {
-  // Remove __builtin_bpf_passthrough()'s which are used to prevent
-  // certain IR optimizations. Now major IR optimizations are done,
-  // remove them.
-  bool Changed = false;
-  CallInst *ToBeDeleted = nullptr;
-  for (Function &F : M)
-    for (auto &BB : F)
-      for (auto &I : BB) {
-        if (ToBeDeleted) {
-          ToBeDeleted->eraseFromParent();
-          ToBeDeleted = nullptr;
-        }
-
-        auto *Call = dyn_cast<CallInst>(&I);
-        if (!Call)
-          continue;
-        auto *GV = dyn_cast<GlobalValue>(Call->getCalledOperand());
-        if (!GV)
-          continue;
-        if (!GV->getName().startswith("llvm.bpf.passthrough"))
-          continue;
-        Changed = true;
-        Value *Arg = Call->getArgOperand(1);
-        Call->replaceAllUsesWith(Arg);
-        ToBeDeleted = Call;
-      }
-  return Changed;
-}
-
-bool BPFCheckAndAdjustIR::adjustIR(Module &M) {
-  return removePassThroughBuiltin(M);
-}
-
-bool BPFCheckAndAdjustIR::runOnModule(Module &M) {
-  checkIR(M);
-  return adjustIR(M);
-}
+//===------------ BPFCheckAndAdjustIR.cpp - Check and Adjust IR -----------===// 
+// 
+// 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 
+// 
+//===----------------------------------------------------------------------===// 
+// 
+// Check IR and adjust IR for verifier friendly codes. 
+// The following are done for IR checking: 
+//   - no relocation globals in PHI node. 
+// The following are done for IR adjustment: 
+//   - remove __builtin_bpf_passthrough builtins. Target independent IR 
+//     optimizations are done and those builtins can be removed. 
+// 
+//===----------------------------------------------------------------------===// 
+ 
+#include "BPF.h" 
+#include "BPFCORE.h" 
+#include "BPFTargetMachine.h" 
+#include "llvm/IR/DebugInfoMetadata.h" 
+#include "llvm/IR/GlobalVariable.h" 
+#include "llvm/IR/Instruction.h" 
+#include "llvm/IR/Instructions.h" 
+#include "llvm/IR/Module.h" 
+#include "llvm/IR/Type.h" 
+#include "llvm/IR/User.h" 
+#include "llvm/IR/Value.h" 
+#include "llvm/Pass.h" 
+#include "llvm/Transforms/Utils/BasicBlockUtils.h" 
+ 
+#define DEBUG_TYPE "bpf-check-and-opt-ir" 
+ 
+using namespace llvm; 
+ 
+namespace { 
+ 
+class BPFCheckAndAdjustIR final : public ModulePass { 
+  bool runOnModule(Module &F) override; 
+ 
+public: 
+  static char ID; 
+  BPFCheckAndAdjustIR() : ModulePass(ID) {} 
+ 
+private: 
+  void checkIR(Module &M); 
+  bool adjustIR(Module &M); 
+  bool removePassThroughBuiltin(Module &M); 
+}; 
+} // End anonymous namespace 
+ 
+char BPFCheckAndAdjustIR::ID = 0; 
+INITIALIZE_PASS(BPFCheckAndAdjustIR, DEBUG_TYPE, "BPF Check And Adjust IR", 
+                false, false) 
+ 
+ModulePass *llvm::createBPFCheckAndAdjustIR() { 
+  return new BPFCheckAndAdjustIR(); 
+} 
+ 
+void BPFCheckAndAdjustIR::checkIR(Module &M) { 
+  // Ensure relocation global won't appear in PHI node 
+  // This may happen if the compiler generated the following code: 
+  //   B1: 
+  //      g1 = @llvm.skb_buff:0:1... 
+  //      ... 
+  //      goto B_COMMON 
+  //   B2: 
+  //      g2 = @llvm.skb_buff:0:2... 
+  //      ... 
+  //      goto B_COMMON 
+  //   B_COMMON: 
+  //      g = PHI(g1, g2) 
+  //      x = load g 
+  //      ... 
+  // If anything likes the above "g = PHI(g1, g2)", issue a fatal error. 
+  for (Function &F : M) 
+    for (auto &BB : F) 
+      for (auto &I : BB) { 
+        PHINode *PN = dyn_cast<PHINode>(&I); 
+        if (!PN || PN->use_empty()) 
+          continue; 
+        for (int i = 0, e = PN->getNumIncomingValues(); i < e; ++i) { 
+          auto *GV = dyn_cast<GlobalVariable>(PN->getIncomingValue(i)); 
+          if (!GV) 
+            continue; 
+          if (GV->hasAttribute(BPFCoreSharedInfo::AmaAttr) || 
+              GV->hasAttribute(BPFCoreSharedInfo::TypeIdAttr)) 
+            report_fatal_error("relocation global in PHI node"); 
+        } 
+      } 
+} 
+ 
+bool BPFCheckAndAdjustIR::removePassThroughBuiltin(Module &M) { 
+  // Remove __builtin_bpf_passthrough()'s which are used to prevent 
+  // certain IR optimizations. Now major IR optimizations are done, 
+  // remove them. 
+  bool Changed = false; 
+  CallInst *ToBeDeleted = nullptr; 
+  for (Function &F : M) 
+    for (auto &BB : F) 
+      for (auto &I : BB) { 
+        if (ToBeDeleted) { 
+          ToBeDeleted->eraseFromParent(); 
+          ToBeDeleted = nullptr; 
+        } 
+ 
+        auto *Call = dyn_cast<CallInst>(&I); 
+        if (!Call) 
+          continue; 
+        auto *GV = dyn_cast<GlobalValue>(Call->getCalledOperand()); 
+        if (!GV) 
+          continue; 
+        if (!GV->getName().startswith("llvm.bpf.passthrough")) 
+          continue; 
+        Changed = true; 
+        Value *Arg = Call->getArgOperand(1); 
+        Call->replaceAllUsesWith(Arg); 
+        ToBeDeleted = Call; 
+      } 
+  return Changed; 
+} 
+ 
+bool BPFCheckAndAdjustIR::adjustIR(Module &M) { 
+  return removePassThroughBuiltin(M); 
+} 
+ 
+bool BPFCheckAndAdjustIR::runOnModule(Module &M) { 
+  checkIR(M); 
+  return adjustIR(M); 
+}