Move the complex address expression out of DIVariable and into an extra

[oota-llvm.git] / lib / CodeGen / AsmPrinter / ARMException.cpp

diff --git a/lib/CodeGen/AsmPrinter/ARMException.cpp b/lib/CodeGen/AsmPrinter/ARMException.cpp
index 6e79bef8d04861ac872b68a4372e7d996a87d75f..251f5effd6b4d3cb043bebc21732824c997841e9 100644 (file)
--- a/lib/CodeGen/AsmPrinter/ARMException.cpp
+++ b/lib/CodeGen/AsmPrinter/ARMException.cpp
@@ -37,7 +37,7 @@
 using namespace llvm;
 
 ARMException::ARMException(AsmPrinter *A)
-  : DwarfException(A) {}
+  : EHStreamer(A), shouldEmitCFI(false) {}
 
 ARMException::~ARMException() {}
 
@@ -46,31 +46,46 @@ ARMTargetStreamer &ARMException::getTargetStreamer() {
   return static_cast<ARMTargetStreamer &>(TS);
 }
 
+/// endModule - Emit all exception information that should come after the
+/// content.
 void ARMException::endModule() {
+  if (shouldEmitCFI)
+    Asm->OutStreamer.EmitCFISections(false, true);
 }
 
 /// beginFunction - Gather pre-function exception information. Assumes it's
 /// being emitted immediately after the function entry point.
 void ARMException::beginFunction(const MachineFunction *MF) {
-  getTargetStreamer().emitFnStart();
-  if (Asm->MF->getFunction()->needsUnwindTableEntry())
-    Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("eh_func_begin",
-                                                  Asm->getFunctionNumber()));
+  if (Asm->MAI->getExceptionHandlingType() == ExceptionHandling::ARM)
+    getTargetStreamer().emitFnStart();
+  Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("eh_func_begin",
+                                                Asm->getFunctionNumber()));
+  // See if we need call frame info.
+  AsmPrinter::CFIMoveType MoveType = Asm->needsCFIMoves();
+  assert(MoveType != AsmPrinter::CFI_M_EH &&
+         "non-EH CFI not yet supported in prologue with EHABI lowering");
+  if (MoveType == AsmPrinter::CFI_M_Debug) {
+    shouldEmitCFI = true;
+    Asm->OutStreamer.EmitCFIStartProc(false);
+  }
 }
 
 /// endFunction - Gather and emit post-function exception information.
 ///
 void ARMException::endFunction(const MachineFunction *) {
+  if (shouldEmitCFI)
+    Asm->OutStreamer.EmitCFIEndProc();
+
+  // Map all labels and get rid of any dead landing pads.
+  MMI->TidyLandingPads();
+
   ARMTargetStreamer &ATS = getTargetStreamer();
-  if (!Asm->MF->getFunction()->needsUnwindTableEntry())
+  if (!Asm->MF->getFunction()->needsUnwindTableEntry() &&
+      MMI->getLandingPads().empty())
     ATS.emitCantUnwind();
   else {
     Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("eh_func_end",
                                                   Asm->getFunctionNumber()));
-
-    // Map all labels and get rid of any dead landing pads.
-    MMI->TidyLandingPads();
-
     if (!MMI->getLandingPads().empty()) {
       // Emit references to personality.
       if (const Function * Personality =
@@ -84,14 +99,15 @@ void ARMException::endFunction(const MachineFunction *) {
       ATS.emitHandlerData();
 
       // Emit actual exception table
-      EmitExceptionTable();
+      emitExceptionTable();
     }
   }
 
-  ATS.emitFnEnd();
+  if (Asm->MAI->getExceptionHandlingType() == ExceptionHandling::ARM)
+    ATS.emitFnEnd();
 }
 
-void ARMException::EmitTypeInfos(unsigned TTypeEncoding) {
+void ARMException::emitTypeInfos(unsigned TTypeEncoding) {
   const std::vector<const GlobalVariable *> &TypeInfos = MMI->getTypeInfos();
   const std::vector<unsigned> &FilterIds = MMI->getFilterIds();
 
@@ -128,7 +144,7 @@ void ARMException::EmitTypeInfos(unsigned TTypeEncoding) {
         Asm->OutStreamer.AddComment("FilterInfo " + Twine(Entry));
     }
 
-    Asm->EmitTTypeReference((TypeID == 0 ? 0 : TypeInfos[TypeID - 1]),
+    Asm->EmitTTypeReference((TypeID == 0 ? nullptr : TypeInfos[TypeID - 1]),
                             TTypeEncoding);
   }
 }