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[ARM] Generate ABI_optimization_goals build attribute, as described in the ARM ARM.
[oota-llvm.git] / lib / Target / ARM / MCTargetDesc / ARMELFStreamer.cpp
diff --git a/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp b/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp
index bbc0b37175df137c580dba78d697164318c4f495..6084f22c8470e860147842f88aa0fb9fc38dcd83 100644 (file)
--- a/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp
+++ b/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp
@@ -79,7 +79,7 @@ class ARMTargetAsmStreamer : public ARMTargetStreamer {
   void emitAttribute(unsigned Attribute, unsigned Value) override;
   void emitTextAttribute(unsigned Attribute, StringRef String) override;
   void emitIntTextAttribute(unsigned Attribute, unsigned IntValue,
-                            StringRef StrinValue) override;
+                            StringRef StringValue) override;
   void emitArch(unsigned Arch) override;
   void emitArchExtension(unsigned ArchExt) override;
   void emitObjectArch(unsigned Arch) override;
@@ -195,16 +195,16 @@ void ARMTargetAsmStreamer::emitIntTextAttribute(unsigned Attribute,
   OS << "\n";
 }
 void ARMTargetAsmStreamer::emitArch(unsigned Arch) {
-  OS << "\t.arch\t" << ARMTargetParser::getArchName(Arch) << "\n";
+  OS << "\t.arch\t" << ARM::getArchName(Arch) << "\n";
 }
 void ARMTargetAsmStreamer::emitArchExtension(unsigned ArchExt) {
-  OS << "\t.arch_extension\t" << ARMTargetParser::getArchExtName(ArchExt) << "\n";
+  OS << "\t.arch_extension\t" << ARM::getArchExtName(ArchExt) << "\n";
 }
 void ARMTargetAsmStreamer::emitObjectArch(unsigned Arch) {
-  OS << "\t.object_arch\t" << ARMTargetParser::getArchName(Arch) << '\n';
+  OS << "\t.object_arch\t" << ARM::getArchName(Arch) << '\n';
 }
 void ARMTargetAsmStreamer::emitFPU(unsigned FPU) {
-  OS << "\t.fpu\t" << ARMTargetParser::getFPUName(FPU) << "\n";
+  OS << "\t.fpu\t" << ARM::getFPUName(FPU) << "\n";
 }
 void ARMTargetAsmStreamer::finishAttributeSection() {
 }
@@ -243,7 +243,7 @@ void ARMTargetAsmStreamer::emitUnwindRaw(int64_t Offset,
 class ARMTargetELFStreamer : public ARMTargetStreamer {
 private:
   // This structure holds all attributes, accounting for
-  // their string/numeric value, so we can later emmit them
+  // their string/numeric value, so we can later emit them
   // in declaration order, keeping all in the same vector
   struct AttributeItem {
     enum {
@@ -254,7 +254,7 @@ private:
     } Type;
     unsigned Tag;
     unsigned IntValue;
-    StringRef StringValue;
+    std::string StringValue;
 
     static bool LessTag(const AttributeItem &LHS, const AttributeItem &RHS) {
       // The conformance tag must be emitted first when serialised
@@ -507,14 +507,15 @@ public:
   /// This is one of the functions used to emit data into an ELF section, so the
   /// ARM streamer overrides it to add the appropriate mapping symbol ($d) if
   /// necessary.
-  void EmitValueImpl(const MCExpr *Value, unsigned Size,
-                     const SMLoc &Loc) override {
+  void EmitValueImpl(const MCExpr *Value, unsigned Size, SMLoc Loc) override {
     if (const MCSymbolRefExpr *SRE = dyn_cast_or_null<MCSymbolRefExpr>(Value))
-      if (SRE->getKind() == MCSymbolRefExpr::VK_ARM_SBREL && !(Size == 4))
-        getContext().reportFatalError(Loc, "relocated expression must be 32-bit");
+      if (SRE->getKind() == MCSymbolRefExpr::VK_ARM_SBREL && !(Size == 4)) {
+        getContext().reportError(Loc, "relocated expression must be 32-bit");
+        return;
+      }
 
     EmitDataMappingSymbol();
-    MCELFStreamer::EmitValueImpl(Value, Size);
+    MCELFStreamer::EmitValueImpl(Value, Size, Loc);
   }
 
   void EmitAssemblerFlag(MCAssemblerFlag Flag) override {
@@ -563,20 +564,13 @@ private:
   }
 
   void EmitMappingSymbol(StringRef Name) {
-    MCSymbol *Start = getContext().createTempSymbol();
-    EmitLabel(Start);
-
     auto *Symbol = cast<MCSymbolELF>(getContext().getOrCreateSymbol(
         Name + "." + Twine(MappingSymbolCounter++)));
+    EmitLabel(Symbol);
 
-    getAssembler().registerSymbol(*Symbol);
     Symbol->setType(ELF::STT_NOTYPE);
     Symbol->setBinding(ELF::STB_LOCAL);
     Symbol->setExternal(false);
-    AssignSection(Symbol, getCurrentSection().first);
-
-    const MCExpr *Value = MCSymbolRefExpr::create(Start, getContext());
-    Symbol->setVariableValue(Value);
   }
 
   void EmitThumbFunc(MCSymbol *Func) override {
@@ -691,16 +685,16 @@ void ARMTargetELFStreamer::emitArchDefaultAttributes() {
   using namespace ARMBuildAttrs;
 
   setAttributeItem(CPU_name,
-                   ARMTargetParser::getCPUAttr(Arch),
+                   ARM::getCPUAttr(Arch),
                    false);
 
   if (EmittedArch == ARM::AK_INVALID)
     setAttributeItem(CPU_arch,
-                     ARMTargetParser::getArchAttr(Arch),
+                     ARM::getArchAttr(Arch),
                      false);
   else
     setAttributeItem(CPU_arch,
-                     ARMTargetParser::getArchAttr(EmittedArch),
+                     ARM::getArchAttr(EmittedArch),
                      false);
 
   switch (Arch) {
@@ -709,7 +703,6 @@ void ARMTargetELFStreamer::emitArchDefaultAttributes() {
   case ARM::AK_ARMV3:
   case ARM::AK_ARMV3M:
   case ARM::AK_ARMV4:
-  case ARM::AK_ARMV5:
     setAttributeItem(ARM_ISA_use, Allowed, false);
     break;
 
@@ -717,7 +710,6 @@ void ARMTargetELFStreamer::emitArchDefaultAttributes() {
   case ARM::AK_ARMV5T:
   case ARM::AK_ARMV5TE:
   case ARM::AK_ARMV6:
-  case ARM::AK_ARMV6J:
     setAttributeItem(ARM_ISA_use, Allowed, false);
     setAttributeItem(THUMB_ISA_use, Allowed, false);
     break;
@@ -728,8 +720,7 @@ void ARMTargetELFStreamer::emitArchDefaultAttributes() {
     break;
 
   case ARM::AK_ARMV6K:
-  case ARM::AK_ARMV6Z:
-  case ARM::AK_ARMV6ZK:
+  case ARM::AK_ARMV6KZ:
     setAttributeItem(ARM_ISA_use, Allowed, false);
     setAttributeItem(THUMB_ISA_use, Allowed, false);
     setAttributeItem(Virtualization_use, AllowTZ, false);
@@ -739,10 +730,6 @@ void ARMTargetELFStreamer::emitArchDefaultAttributes() {
     setAttributeItem(THUMB_ISA_use, Allowed, false);
     break;
 
-  case ARM::AK_ARMV7:
-    setAttributeItem(THUMB_ISA_use, AllowThumb32, false);
-    break;
-
   case ARM::AK_ARMV7A:
     setAttributeItem(CPU_arch_profile, ApplicationProfile, false);
     setAttributeItem(ARM_ISA_use, Allowed, false);
@@ -762,6 +749,7 @@ void ARMTargetELFStreamer::emitArchDefaultAttributes() {
 
   case ARM::AK_ARMV8A:
   case ARM::AK_ARMV8_1A:
+  case ARM::AK_ARMV8_2A:
     setAttributeItem(CPU_arch_profile, ApplicationProfile, false);
     setAttributeItem(ARM_ISA_use, Allowed, false);
     setAttributeItem(THUMB_ISA_use, AllowThumb32, false);
@@ -804,12 +792,44 @@ void ARMTargetELFStreamer::emitFPUDefaultAttributes() {
                      /* OverwriteExisting= */ false);
     break;
 
+  case ARM::FK_VFPV3_FP16:
+    setAttributeItem(ARMBuildAttrs::FP_arch,
+                     ARMBuildAttrs::AllowFPv3A,
+                     /* OverwriteExisting= */ false);
+    setAttributeItem(ARMBuildAttrs::FP_HP_extension,
+                     ARMBuildAttrs::AllowHPFP,
+                     /* OverwriteExisting= */ false);
+    break;
+
   case ARM::FK_VFPV3_D16:
     setAttributeItem(ARMBuildAttrs::FP_arch,
                      ARMBuildAttrs::AllowFPv3B,
                      /* OverwriteExisting= */ false);
     break;
 
+  case ARM::FK_VFPV3_D16_FP16:
+    setAttributeItem(ARMBuildAttrs::FP_arch,
+                     ARMBuildAttrs::AllowFPv3B,
+                     /* OverwriteExisting= */ false);
+    setAttributeItem(ARMBuildAttrs::FP_HP_extension,
+                     ARMBuildAttrs::AllowHPFP,
+                     /* OverwriteExisting= */ false);
+    break;
+
+  case ARM::FK_VFPV3XD:
+    setAttributeItem(ARMBuildAttrs::FP_arch,
+                     ARMBuildAttrs::AllowFPv3B,
+                     /* OverwriteExisting= */ false);
+    break;
+  case ARM::FK_VFPV3XD_FP16:
+    setAttributeItem(ARMBuildAttrs::FP_arch,
+                     ARMBuildAttrs::AllowFPv3B,
+                     /* OverwriteExisting= */ false);
+    setAttributeItem(ARMBuildAttrs::FP_HP_extension,
+                     ARMBuildAttrs::AllowHPFP,
+                     /* OverwriteExisting= */ false);
+    break;
+
   case ARM::FK_VFPV4:
     setAttributeItem(ARMBuildAttrs::FP_arch,
                      ARMBuildAttrs::AllowFPv4A,
@@ -849,6 +869,18 @@ void ARMTargetELFStreamer::emitFPUDefaultAttributes() {
                      /* OverwriteExisting= */ false);
     break;
 
+  case ARM::FK_NEON_FP16:
+    setAttributeItem(ARMBuildAttrs::FP_arch,
+                     ARMBuildAttrs::AllowFPv3A,
+                     /* OverwriteExisting= */ false);
+    setAttributeItem(ARMBuildAttrs::Advanced_SIMD_arch,
+                     ARMBuildAttrs::AllowNeon,
+                     /* OverwriteExisting= */ false);
+    setAttributeItem(ARMBuildAttrs::FP_HP_extension,
+                     ARMBuildAttrs::AllowHPFP,
+                     /* OverwriteExisting= */ false);
+    break;
+
   case ARM::FK_NEON_VFPV4:
     setAttributeItem(ARMBuildAttrs::FP_arch,
                      ARMBuildAttrs::AllowFPv4A,
@@ -1047,19 +1079,14 @@ inline void ARMELFStreamer::SwitchToEHSection(const char *Prefix,
 }
 
 inline void ARMELFStreamer::SwitchToExTabSection(const MCSymbol &FnStart) {
-  SwitchToEHSection(".ARM.extab",
-                    ELF::SHT_PROGBITS,
-                    ELF::SHF_ALLOC,
-                    SectionKind::getDataRel(),
-                    FnStart);
+  SwitchToEHSection(".ARM.extab", ELF::SHT_PROGBITS, ELF::SHF_ALLOC,
+                    SectionKind::getData(), FnStart);
 }
 
 inline void ARMELFStreamer::SwitchToExIdxSection(const MCSymbol &FnStart) {
-  SwitchToEHSection(".ARM.exidx",
-                    ELF::SHT_ARM_EXIDX,
+  SwitchToEHSection(".ARM.exidx", ELF::SHT_ARM_EXIDX,
                     ELF::SHF_ALLOC | ELF::SHF_LINK_ORDER,
-                    SectionKind::getDataRel(),
-                    FnStart);
+                    SectionKind::getData(), FnStart);
 }
 void ARMELFStreamer::EmitFixup(const MCExpr *Expr, MCFixupKind Kind) {
   MCDataFragment *Frag = getOrCreateDataFragment();
@@ -1325,7 +1352,7 @@ MCTargetStreamer *createARMNullTargetStreamer(MCStreamer &S) {
 MCTargetStreamer *createARMObjectTargetStreamer(MCStreamer &S,
                                                 const MCSubtargetInfo &STI) {
   const Triple &TT = STI.getTargetTriple();
-  if (TT.getObjectFormat() == Triple::ELF)
+  if (TT.isOSBinFormatELF())
     return new ARMTargetELFStreamer(S);
   return new ARMTargetStreamer(S);
 }
@@ -1345,6 +1372,6 @@ MCELFStreamer *createARMELFStreamer(MCContext &Context, MCAsmBackend &TAB,
     return S;
   }
 
-} // namespace llvm
+}
 
 
C/C++ LLVM-based compilers that forbids OOTA behaviors