MachineFunction: Return reference from getFunction(); NFC

The Function can never be nullptr so we can return a reference.

llvm-svn: 320884

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index cd8f61dbe22..2c9c7d4f314 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -1163,7 +1163,7 @@ void DwarfDebug::beginInstruction(const MachineInstr *MI) {
   DebugHandlerBase::beginInstruction(MI);
   assert(CurMI);
 
-  const auto *SP = MI->getMF()->getFunction()->getSubprogram();
+  const auto *SP = MI->getMF()->getFunction().getSubprogram();
   if (!SP || SP->getUnit()->getEmissionKind() == DICompileUnit::NoDebug)
     return;
 
@@ -1261,7 +1261,7 @@ static DebugLoc findPrologueEndLoc(const MachineFunction *MF) {
 void DwarfDebug::beginFunctionImpl(const MachineFunction *MF) {
   CurFn = MF;
 
-  auto *SP = MF->getFunction()->getSubprogram();
+  auto *SP = MF->getFunction().getSubprogram();
   assert(LScopes.empty() || SP == LScopes.getCurrentFunctionScope()->getScopeNode());
   if (SP->getUnit()->getEmissionKind() == DICompileUnit::NoDebug)
     return;
@@ -1297,7 +1297,7 @@ void DwarfDebug::skippedNonDebugFunction() {
 
 // Gather and emit post-function debug information.
 void DwarfDebug::endFunctionImpl(const MachineFunction *MF) {
-  const DISubprogram *SP = MF->getFunction()->getSubprogram();
+  const DISubprogram *SP = MF->getFunction().getSubprogram();
 
   assert(CurFn == MF &&
       "endFunction should be called with the same function as beginFunction");