ARMv8 IfConversion must skip narrow instructions that a) define CPSR and b) wouldn...

[oota-llvm.git] / lib / Target / ARM / ARMTargetObjectFile.cpp

diff --git a/lib/Target/ARM/ARMTargetObjectFile.cpp b/lib/Target/ARM/ARMTargetObjectFile.cpp
index 7463e309a8efe22be9aeeb3848495cae6cceae18..3379f85b4ec12e5b0a31bcf2a7a0d7b0d6c6696c 100644 (file)
--- a/lib/Target/ARM/ARMTargetObjectFile.cpp
+++ b/lib/Target/ARM/ARMTargetObjectFile.cpp
@@ -9,10 +9,14 @@
 
 #include "ARMTargetObjectFile.h"
 #include "ARMSubtarget.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/IR/Mangler.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCExpr.h"
 #include "llvm/MC/MCSectionELF.h"
-#include "llvm/MC/MCSectionMachO.h"
 #include "llvm/Support/Dwarf.h"
-#include "llvm/Target/TargetMachine.h"
+#include "llvm/Support/ELF.h"
+#include "llvm/Target/TargetLowering.h"
 using namespace llvm;
 using namespace dwarf;
 
@@ -22,33 +26,33 @@ using namespace dwarf;
 
 void ARMElfTargetObjectFile::Initialize(MCContext &Ctx,
                                         const TargetMachine &TM) {
+  bool isAAPCS_ABI = TM.getSubtarget<ARMSubtarget>().isAAPCS_ABI();
   TargetLoweringObjectFileELF::Initialize(Ctx, TM);
+  InitializeELF(isAAPCS_ABI);
 
-  if (TM.getSubtarget<ARMSubtarget>().isAAPCS_ABI()) {
-    StaticCtorSection =
-      getELFSection(".init_array", MCSectionELF::SHT_INIT_ARRAY,
-                    MCSectionELF::SHF_WRITE | MCSectionELF::SHF_ALLOC,
-                    SectionKind::getDataRel());
-    StaticDtorSection =
-      getELFSection(".fini_array", MCSectionELF::SHT_FINI_ARRAY,
-                    MCSectionELF::SHF_WRITE | MCSectionELF::SHF_ALLOC,
-                    SectionKind::getDataRel());
+  if (isAAPCS_ABI) {
+    LSDASection = NULL;
   }
-}
 
-//===----------------------------------------------------------------------===//
-//                              Mach-O Target
-//===----------------------------------------------------------------------===//
+  AttributesSection =
+    getContext().getELFSection(".ARM.attributes",
+                               ELF::SHT_ARM_ATTRIBUTES,
+                               0,
+                               SectionKind::getMetadata());
+}
 
-void ARMMachOTargetObjectFile::Initialize(MCContext &Ctx,
-                                          const TargetMachine &TM) {
-  TargetLoweringObjectFileMachO::Initialize(Ctx, TM);
+const MCExpr *ARMElfTargetObjectFile::getTTypeGlobalReference(
+    const GlobalValue *GV, unsigned Encoding, Mangler &Mang,
+    const TargetMachine &TM, MachineModuleInfo *MMI,
+    MCStreamer &Streamer) const {
+  assert(Encoding == DW_EH_PE_absptr && "Can handle absptr encoding only");
 
-  // Exception Handling.
-  LSDASection = getMachOSection("__TEXT", "__gcc_except_tab", 0,
-                                SectionKind::getReadOnlyWithRel());
+  return MCSymbolRefExpr::Create(TM.getSymbol(GV, Mang),
+                                 MCSymbolRefExpr::VK_ARM_TARGET2, getContext());
 }
 
-unsigned ARMMachOTargetObjectFile::getTTypeEncoding() const {
-  return DW_EH_PE_indirect | DW_EH_PE_pcrel | DW_EH_PE_sdata4;
+const MCExpr *ARMElfTargetObjectFile::
+getDebugThreadLocalSymbol(const MCSymbol *Sym) const {
+  return MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_ARM_TLSLDO,
+                                 getContext());
 }