Import LLVM 8.0.0 release including clang, lld and lldb.

1 files changed, 55 insertions, 1 deletions

diff --git a/gnu/llvm/lib/IR/Instruction.cpp b/gnu/llvm/lib/IR/Instruction.cpp
index 508db9bcaf1..d861b528859 100644
--- a/gnu/llvm/lib/IR/Instruction.cpp
+++ b/gnu/llvm/lib/IR/Instruction.cpp
@@ -303,6 +303,9 @@ const char *Instruction::getOpcodeName(unsigned OpCode) {
   case CatchPad: return "catchpad";
   case CatchSwitch: return "catchswitch";
 
+  // Standard unary operators...
+  case FNeg: return "fneg";
+
   // Standard binary operators...
   case Add: return "add";
   case FAdd: return "fadd";
@@ -592,7 +595,15 @@ bool Instruction::mayThrow() const {
 
 bool Instruction::isSafeToRemove() const {
   return (!isa<CallInst>(this) || !this->mayHaveSideEffects()) &&
-         !isa<TerminatorInst>(this);
+         !this->isTerminator();
+}
+
+bool Instruction::isLifetimeStartOrEnd() const {
+  auto II = dyn_cast<IntrinsicInst>(this);
+  if (!II)
+    return false;
+  Intrinsic::ID ID = II->getIntrinsicID();
+  return ID == Intrinsic::lifetime_start || ID == Intrinsic::lifetime_end;
 }
 
 const Instruction *Instruction::getNextNonDebugInstruction() const {
@@ -602,6 +613,13 @@ const Instruction *Instruction::getNextNonDebugInstruction() const {
   return nullptr;
 }
 
+const Instruction *Instruction::getPrevNonDebugInstruction() const {
+  for (const Instruction *I = getPrevNode(); I; I = I->getPrevNode())
+    if (!isa<DbgInfoIntrinsic>(I))
+      return I;
+  return nullptr;
+}
+
 bool Instruction::isAssociative() const {
   unsigned Opcode = getOpcode();
   if (isAssociative(Opcode))
@@ -617,6 +635,42 @@ bool Instruction::isAssociative() const {
   }
 }
 
+unsigned Instruction::getNumSuccessors() const {
+  switch (getOpcode()) {
+#define HANDLE_TERM_INST(N, OPC, CLASS)                                        \
+  case Instruction::OPC:                                                       \
+    return static_cast<const CLASS *>(this)->getNumSuccessors();
+#include "llvm/IR/Instruction.def"
+  default:
+    break;
+  }
+  llvm_unreachable("not a terminator");
+}
+
+BasicBlock *Instruction::getSuccessor(unsigned idx) const {
+  switch (getOpcode()) {
+#define HANDLE_TERM_INST(N, OPC, CLASS)                                        \
+  case Instruction::OPC:                                                       \
+    return static_cast<const CLASS *>(this)->getSuccessor(idx);
+#include "llvm/IR/Instruction.def"
+  default:
+    break;
+  }
+  llvm_unreachable("not a terminator");
+}
+
+void Instruction::setSuccessor(unsigned idx, BasicBlock *B) {
+  switch (getOpcode()) {
+#define HANDLE_TERM_INST(N, OPC, CLASS)                                        \
+  case Instruction::OPC:                                                       \
+    return static_cast<CLASS *>(this)->setSuccessor(idx, B);
+#include "llvm/IR/Instruction.def"
+  default:
+    break;
+  }
+  llvm_unreachable("not a terminator");
+}
+
 Instruction *Instruction::cloneImpl() const {
   llvm_unreachable("Subclass of Instruction failed to implement cloneImpl");
 }