[DAG] Pass the argument list to the CallLoweringInfo via move semantics. NFCI.
[oota-llvm.git] / lib / Target / ARM / ARMISelLowering.cpp
index e7ffeee8f9225bdd3020855dd721d1280bc8d997..ef23b2d22639f337d9a7fb594eb54304807b6c6d 100644 (file)
@@ -155,15 +155,16 @@ void ARMTargetLowering::addQRTypeForNEON(MVT VT) {
   addTypeForNEON(VT, MVT::v2f64, MVT::v4i32);
 }
 
-static TargetLoweringObjectFile *createTLOF(TargetMachine &TM) {
-  if (TM.getSubtarget<ARMSubtarget>().isTargetMachO())
+static TargetLoweringObjectFile *createTLOF(const Triple &TT) {
+  if (TT.isOSBinFormatMachO())
     return new TargetLoweringObjectFileMachO();
-
+  if (TT.isOSWindows())
+    return new TargetLoweringObjectFileCOFF();
   return new ARMElfTargetObjectFile();
 }
 
 ARMTargetLowering::ARMTargetLowering(TargetMachine &TM)
-    : TargetLowering(TM, createTLOF(TM)) {
+    : TargetLowering(TM, createTLOF(Triple(TM.getTargetTriple()))) {
   Subtarget = &TM.getSubtarget<ARMSubtarget>();
   RegInfo = TM.getRegisterInfo();
   Itins = TM.getInstrItineraryData();
@@ -255,167 +256,128 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM)
 
   if (Subtarget->isAAPCS_ABI() && !Subtarget->isTargetMachO() &&
       !Subtarget->isTargetWindows()) {
-    // Double-precision floating-point arithmetic helper functions
-    // RTABI chapter 4.1.2, Table 2
-    setLibcallName(RTLIB::ADD_F64, "__aeabi_dadd");
-    setLibcallName(RTLIB::DIV_F64, "__aeabi_ddiv");
-    setLibcallName(RTLIB::MUL_F64, "__aeabi_dmul");
-    setLibcallName(RTLIB::SUB_F64, "__aeabi_dsub");
-    setLibcallCallingConv(RTLIB::ADD_F64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::DIV_F64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::MUL_F64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::SUB_F64, CallingConv::ARM_AAPCS);
-
-    // Double-precision floating-point comparison helper functions
-    // RTABI chapter 4.1.2, Table 3
-    setLibcallName(RTLIB::OEQ_F64, "__aeabi_dcmpeq");
-    setCmpLibcallCC(RTLIB::OEQ_F64, ISD::SETNE);
-    setLibcallName(RTLIB::UNE_F64, "__aeabi_dcmpeq");
-    setCmpLibcallCC(RTLIB::UNE_F64, ISD::SETEQ);
-    setLibcallName(RTLIB::OLT_F64, "__aeabi_dcmplt");
-    setCmpLibcallCC(RTLIB::OLT_F64, ISD::SETNE);
-    setLibcallName(RTLIB::OLE_F64, "__aeabi_dcmple");
-    setCmpLibcallCC(RTLIB::OLE_F64, ISD::SETNE);
-    setLibcallName(RTLIB::OGE_F64, "__aeabi_dcmpge");
-    setCmpLibcallCC(RTLIB::OGE_F64, ISD::SETNE);
-    setLibcallName(RTLIB::OGT_F64, "__aeabi_dcmpgt");
-    setCmpLibcallCC(RTLIB::OGT_F64, ISD::SETNE);
-    setLibcallName(RTLIB::UO_F64,  "__aeabi_dcmpun");
-    setCmpLibcallCC(RTLIB::UO_F64,  ISD::SETNE);
-    setLibcallName(RTLIB::O_F64,   "__aeabi_dcmpun");
-    setCmpLibcallCC(RTLIB::O_F64,   ISD::SETEQ);
-    setLibcallCallingConv(RTLIB::OEQ_F64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::UNE_F64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::OLT_F64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::OLE_F64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::OGE_F64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::OGT_F64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::UO_F64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::O_F64, CallingConv::ARM_AAPCS);
-
-    // Single-precision floating-point arithmetic helper functions
-    // RTABI chapter 4.1.2, Table 4
-    setLibcallName(RTLIB::ADD_F32, "__aeabi_fadd");
-    setLibcallName(RTLIB::DIV_F32, "__aeabi_fdiv");
-    setLibcallName(RTLIB::MUL_F32, "__aeabi_fmul");
-    setLibcallName(RTLIB::SUB_F32, "__aeabi_fsub");
-    setLibcallCallingConv(RTLIB::ADD_F32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::DIV_F32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::MUL_F32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::SUB_F32, CallingConv::ARM_AAPCS);
-
-    // Single-precision floating-point comparison helper functions
-    // RTABI chapter 4.1.2, Table 5
-    setLibcallName(RTLIB::OEQ_F32, "__aeabi_fcmpeq");
-    setCmpLibcallCC(RTLIB::OEQ_F32, ISD::SETNE);
-    setLibcallName(RTLIB::UNE_F32, "__aeabi_fcmpeq");
-    setCmpLibcallCC(RTLIB::UNE_F32, ISD::SETEQ);
-    setLibcallName(RTLIB::OLT_F32, "__aeabi_fcmplt");
-    setCmpLibcallCC(RTLIB::OLT_F32, ISD::SETNE);
-    setLibcallName(RTLIB::OLE_F32, "__aeabi_fcmple");
-    setCmpLibcallCC(RTLIB::OLE_F32, ISD::SETNE);
-    setLibcallName(RTLIB::OGE_F32, "__aeabi_fcmpge");
-    setCmpLibcallCC(RTLIB::OGE_F32, ISD::SETNE);
-    setLibcallName(RTLIB::OGT_F32, "__aeabi_fcmpgt");
-    setCmpLibcallCC(RTLIB::OGT_F32, ISD::SETNE);
-    setLibcallName(RTLIB::UO_F32,  "__aeabi_fcmpun");
-    setCmpLibcallCC(RTLIB::UO_F32,  ISD::SETNE);
-    setLibcallName(RTLIB::O_F32,   "__aeabi_fcmpun");
-    setCmpLibcallCC(RTLIB::O_F32,   ISD::SETEQ);
-    setLibcallCallingConv(RTLIB::OEQ_F32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::UNE_F32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::OLT_F32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::OLE_F32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::OGE_F32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::OGT_F32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::UO_F32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::O_F32, CallingConv::ARM_AAPCS);
-
-    // Floating-point to integer conversions.
-    // RTABI chapter 4.1.2, Table 6
-    setLibcallName(RTLIB::FPTOSINT_F64_I32, "__aeabi_d2iz");
-    setLibcallName(RTLIB::FPTOUINT_F64_I32, "__aeabi_d2uiz");
-    setLibcallName(RTLIB::FPTOSINT_F64_I64, "__aeabi_d2lz");
-    setLibcallName(RTLIB::FPTOUINT_F64_I64, "__aeabi_d2ulz");
-    setLibcallName(RTLIB::FPTOSINT_F32_I32, "__aeabi_f2iz");
-    setLibcallName(RTLIB::FPTOUINT_F32_I32, "__aeabi_f2uiz");
-    setLibcallName(RTLIB::FPTOSINT_F32_I64, "__aeabi_f2lz");
-    setLibcallName(RTLIB::FPTOUINT_F32_I64, "__aeabi_f2ulz");
-    setLibcallCallingConv(RTLIB::FPTOSINT_F64_I32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::FPTOUINT_F64_I32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::FPTOSINT_F64_I64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::FPTOUINT_F64_I64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::FPTOSINT_F32_I32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::FPTOUINT_F32_I32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::FPTOSINT_F32_I64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::FPTOUINT_F32_I64, CallingConv::ARM_AAPCS);
-
-    // Conversions between floating types.
-    // RTABI chapter 4.1.2, Table 7
-    setLibcallName(RTLIB::FPROUND_F64_F32, "__aeabi_d2f");
-    setLibcallName(RTLIB::FPEXT_F32_F64,   "__aeabi_f2d");
-    setLibcallCallingConv(RTLIB::FPROUND_F64_F32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::FPEXT_F32_F64, CallingConv::ARM_AAPCS);
-
-    // Integer to floating-point conversions.
-    // RTABI chapter 4.1.2, Table 8
-    setLibcallName(RTLIB::SINTTOFP_I32_F64, "__aeabi_i2d");
-    setLibcallName(RTLIB::UINTTOFP_I32_F64, "__aeabi_ui2d");
-    setLibcallName(RTLIB::SINTTOFP_I64_F64, "__aeabi_l2d");
-    setLibcallName(RTLIB::UINTTOFP_I64_F64, "__aeabi_ul2d");
-    setLibcallName(RTLIB::SINTTOFP_I32_F32, "__aeabi_i2f");
-    setLibcallName(RTLIB::UINTTOFP_I32_F32, "__aeabi_ui2f");
-    setLibcallName(RTLIB::SINTTOFP_I64_F32, "__aeabi_l2f");
-    setLibcallName(RTLIB::UINTTOFP_I64_F32, "__aeabi_ul2f");
-    setLibcallCallingConv(RTLIB::SINTTOFP_I32_F64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::UINTTOFP_I32_F64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::SINTTOFP_I64_F64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::UINTTOFP_I64_F64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::SINTTOFP_I32_F32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::UINTTOFP_I32_F32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::SINTTOFP_I64_F32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::UINTTOFP_I64_F32, CallingConv::ARM_AAPCS);
-
-    // Long long helper functions
-    // RTABI chapter 4.2, Table 9
-    setLibcallName(RTLIB::MUL_I64,  "__aeabi_lmul");
-    setLibcallName(RTLIB::SHL_I64, "__aeabi_llsl");
-    setLibcallName(RTLIB::SRL_I64, "__aeabi_llsr");
-    setLibcallName(RTLIB::SRA_I64, "__aeabi_lasr");
-    setLibcallCallingConv(RTLIB::MUL_I64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::SDIV_I64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::UDIV_I64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::SHL_I64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::SRL_I64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::SRA_I64, CallingConv::ARM_AAPCS);
-
-    // Integer division functions
-    // RTABI chapter 4.3.1
-    setLibcallName(RTLIB::SDIV_I8,  "__aeabi_idiv");
-    setLibcallName(RTLIB::SDIV_I16, "__aeabi_idiv");
-    setLibcallName(RTLIB::SDIV_I32, "__aeabi_idiv");
-    setLibcallName(RTLIB::SDIV_I64, "__aeabi_ldivmod");
-    setLibcallName(RTLIB::UDIV_I8,  "__aeabi_uidiv");
-    setLibcallName(RTLIB::UDIV_I16, "__aeabi_uidiv");
-    setLibcallName(RTLIB::UDIV_I32, "__aeabi_uidiv");
-    setLibcallName(RTLIB::UDIV_I64, "__aeabi_uldivmod");
-    setLibcallCallingConv(RTLIB::SDIV_I8, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::SDIV_I16, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::SDIV_I32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::SDIV_I64, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::UDIV_I8, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::UDIV_I16, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::UDIV_I32, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::UDIV_I64, CallingConv::ARM_AAPCS);
-
-    // Memory operations
-    // RTABI chapter 4.3.4
-    setLibcallName(RTLIB::MEMCPY,  "__aeabi_memcpy");
-    setLibcallName(RTLIB::MEMMOVE, "__aeabi_memmove");
-    setLibcallName(RTLIB::MEMSET,  "__aeabi_memset");
-    setLibcallCallingConv(RTLIB::MEMCPY, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::MEMMOVE, CallingConv::ARM_AAPCS);
-    setLibcallCallingConv(RTLIB::MEMSET, CallingConv::ARM_AAPCS);
+    static const struct {
+      const RTLIB::Libcall Op;
+      const char * const Name;
+      const CallingConv::ID CC;
+      const ISD::CondCode Cond;
+    } LibraryCalls[] = {
+      // Double-precision floating-point arithmetic helper functions
+      // RTABI chapter 4.1.2, Table 2
+      { RTLIB::ADD_F64, "__aeabi_dadd", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::DIV_F64, "__aeabi_ddiv", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::MUL_F64, "__aeabi_dmul", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::SUB_F64, "__aeabi_dsub", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+
+      // Double-precision floating-point comparison helper functions
+      // RTABI chapter 4.1.2, Table 3
+      { RTLIB::OEQ_F64, "__aeabi_dcmpeq", CallingConv::ARM_AAPCS, ISD::SETNE },
+      { RTLIB::UNE_F64, "__aeabi_dcmpeq", CallingConv::ARM_AAPCS, ISD::SETEQ },
+      { RTLIB::OLT_F64, "__aeabi_dcmplt", CallingConv::ARM_AAPCS, ISD::SETNE },
+      { RTLIB::OLE_F64, "__aeabi_dcmple", CallingConv::ARM_AAPCS, ISD::SETNE },
+      { RTLIB::OGE_F64, "__aeabi_dcmpge", CallingConv::ARM_AAPCS, ISD::SETNE },
+      { RTLIB::OGT_F64, "__aeabi_dcmpgt", CallingConv::ARM_AAPCS, ISD::SETNE },
+      { RTLIB::UO_F64,  "__aeabi_dcmpun", CallingConv::ARM_AAPCS, ISD::SETNE },
+      { RTLIB::O_F64,   "__aeabi_dcmpun", CallingConv::ARM_AAPCS, ISD::SETEQ },
+
+      // Single-precision floating-point arithmetic helper functions
+      // RTABI chapter 4.1.2, Table 4
+      { RTLIB::ADD_F32, "__aeabi_fadd", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::DIV_F32, "__aeabi_fdiv", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::MUL_F32, "__aeabi_fmul", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::SUB_F32, "__aeabi_fsub", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+
+      // Single-precision floating-point comparison helper functions
+      // RTABI chapter 4.1.2, Table 5
+      { RTLIB::OEQ_F32, "__aeabi_fcmpeq", CallingConv::ARM_AAPCS, ISD::SETNE },
+      { RTLIB::UNE_F32, "__aeabi_fcmpeq", CallingConv::ARM_AAPCS, ISD::SETEQ },
+      { RTLIB::OLT_F32, "__aeabi_fcmplt", CallingConv::ARM_AAPCS, ISD::SETNE },
+      { RTLIB::OLE_F32, "__aeabi_fcmple", CallingConv::ARM_AAPCS, ISD::SETNE },
+      { RTLIB::OGE_F32, "__aeabi_fcmpge", CallingConv::ARM_AAPCS, ISD::SETNE },
+      { RTLIB::OGT_F32, "__aeabi_fcmpgt", CallingConv::ARM_AAPCS, ISD::SETNE },
+      { RTLIB::UO_F32,  "__aeabi_fcmpun", CallingConv::ARM_AAPCS, ISD::SETNE },
+      { RTLIB::O_F32,   "__aeabi_fcmpun", CallingConv::ARM_AAPCS, ISD::SETEQ },
+
+      // Floating-point to integer conversions.
+      // RTABI chapter 4.1.2, Table 6
+      { RTLIB::FPTOSINT_F64_I32, "__aeabi_d2iz",  CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::FPTOUINT_F64_I32, "__aeabi_d2uiz", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::FPTOSINT_F64_I64, "__aeabi_d2lz",  CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::FPTOUINT_F64_I64, "__aeabi_d2ulz", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::FPTOSINT_F32_I32, "__aeabi_f2iz",  CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::FPTOUINT_F32_I32, "__aeabi_f2uiz", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::FPTOSINT_F32_I64, "__aeabi_f2lz",  CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::FPTOUINT_F32_I64, "__aeabi_f2ulz", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+
+      // Conversions between floating types.
+      // RTABI chapter 4.1.2, Table 7
+      { RTLIB::FPROUND_F64_F32, "__aeabi_d2f", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::FPEXT_F32_F64,   "__aeabi_f2d", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+
+      // Integer to floating-point conversions.
+      // RTABI chapter 4.1.2, Table 8
+      { RTLIB::SINTTOFP_I32_F64, "__aeabi_i2d",  CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::UINTTOFP_I32_F64, "__aeabi_ui2d", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::SINTTOFP_I64_F64, "__aeabi_l2d",  CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::UINTTOFP_I64_F64, "__aeabi_ul2d", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::SINTTOFP_I32_F32, "__aeabi_i2f",  CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::UINTTOFP_I32_F32, "__aeabi_ui2f", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::SINTTOFP_I64_F32, "__aeabi_l2f",  CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::UINTTOFP_I64_F32, "__aeabi_ul2f", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+
+      // Long long helper functions
+      // RTABI chapter 4.2, Table 9
+      { RTLIB::MUL_I64, "__aeabi_lmul", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::SHL_I64, "__aeabi_llsl", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::SRL_I64, "__aeabi_llsr", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::SRA_I64, "__aeabi_lasr", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+
+      // Integer division functions
+      // RTABI chapter 4.3.1
+      { RTLIB::SDIV_I8,  "__aeabi_idiv",     CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::SDIV_I16, "__aeabi_idiv",     CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::SDIV_I32, "__aeabi_idiv",     CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::SDIV_I64, "__aeabi_ldivmod",  CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::UDIV_I8,  "__aeabi_uidiv",    CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::UDIV_I16, "__aeabi_uidiv",    CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::UDIV_I32, "__aeabi_uidiv",    CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::UDIV_I64, "__aeabi_uldivmod", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+
+      // Memory operations
+      // RTABI chapter 4.3.4
+      { RTLIB::MEMCPY,  "__aeabi_memcpy",  CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::MEMMOVE, "__aeabi_memmove", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      { RTLIB::MEMSET,  "__aeabi_memset",  CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+    };
+
+    for (const auto &LC : LibraryCalls) {
+      setLibcallName(LC.Op, LC.Name);
+      setLibcallCallingConv(LC.Op, LC.CC);
+      if (LC.Cond != ISD::SETCC_INVALID)
+        setCmpLibcallCC(LC.Op, LC.Cond);
+    }
+  }
+
+  if (Subtarget->isTargetWindows()) {
+    static const struct {
+      const RTLIB::Libcall Op;
+      const char * const Name;
+      const CallingConv::ID CC;
+    } LibraryCalls[] = {
+      { RTLIB::FPTOSINT_F32_I64, "__stoi64", CallingConv::ARM_AAPCS_VFP },
+      { RTLIB::FPTOSINT_F64_I64, "__dtoi64", CallingConv::ARM_AAPCS_VFP },
+      { RTLIB::FPTOUINT_F32_I64, "__stou64", CallingConv::ARM_AAPCS_VFP },
+      { RTLIB::FPTOUINT_F64_I64, "__dtou64", CallingConv::ARM_AAPCS_VFP },
+      { RTLIB::SINTTOFP_I64_F32, "__i64tos", CallingConv::ARM_AAPCS_VFP },
+      { RTLIB::SINTTOFP_I64_F64, "__i64tod", CallingConv::ARM_AAPCS_VFP },
+      { RTLIB::UINTTOFP_I64_F32, "__u64tos", CallingConv::ARM_AAPCS_VFP },
+      { RTLIB::UINTTOFP_I64_F64, "__u64tod", CallingConv::ARM_AAPCS_VFP },
+    };
+
+    for (const auto &LC : LibraryCalls) {
+      setLibcallName(LC.Op, LC.Name);
+      setLibcallCallingConv(LC.Op, LC.CC);
+    }
   }
 
   // Use divmod compiler-rt calls for iOS 5.0 and later.
@@ -452,6 +414,8 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM)
     setOperationAction(ISD::SMUL_LOHI, (MVT::SimpleValueType)VT, Expand);
     setOperationAction(ISD::MULHU, (MVT::SimpleValueType)VT, Expand);
     setOperationAction(ISD::UMUL_LOHI, (MVT::SimpleValueType)VT, Expand);
+
+    setOperationAction(ISD::BSWAP, (MVT::SimpleValueType)VT, Expand);
   }
 
   setOperationAction(ISD::ConstantFP, MVT::f32, Custom);
@@ -746,7 +710,11 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM)
     setExceptionSelectorRegister(ARM::R1);
   }
 
-  setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32, Expand);
+  if (Subtarget->getTargetTriple().isWindowsItaniumEnvironment())
+    setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32, Custom);
+  else
+    setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32, Expand);
+
   // ARMv6 Thumb1 (except for CPUs that support dmb / dsb) and earlier use
   // the default expansion.
   if (Subtarget->hasAnyDataBarrier() && !Subtarget->isThumb1Only()) {
@@ -1019,6 +987,8 @@ const char *ARMTargetLowering::getTargetNodeName(unsigned Opcode) const {
 
   case ARMISD::PRELOAD:       return "ARMISD::PRELOAD";
 
+  case ARMISD::WIN__CHKSTK:   return "ARMISD:::WIN__CHKSTK";
+
   case ARMISD::VCEQ:          return "ARMISD::VCEQ";
   case ARMISD::VCEQZ:         return "ARMISD::VCEQZ";
   case ARMISD::VCGE:          return "ARMISD::VCGE";
@@ -1235,7 +1205,7 @@ ARMTargetLowering::getEffectiveCallingConv(CallingConv::ID CC,
   case CallingConv::C:
     if (!Subtarget->isAAPCS_ABI())
       return CallingConv::ARM_APCS;
-    else if (Subtarget->hasVFP2() &&
+    else if (Subtarget->hasVFP2() && !Subtarget->isThumb1Only() &&
              getTargetMachine().Options.FloatABIType == FloatABI::Hard &&
              !isVarArg)
       return CallingConv::ARM_AAPCS_VFP;
@@ -1243,10 +1213,10 @@ ARMTargetLowering::getEffectiveCallingConv(CallingConv::ID CC,
       return CallingConv::ARM_AAPCS;
   case CallingConv::Fast:
     if (!Subtarget->isAAPCS_ABI()) {
-      if (Subtarget->hasVFP2() && !isVarArg)
+      if (Subtarget->hasVFP2() && !Subtarget->isThumb1Only() && !isVarArg)
         return CallingConv::Fast;
       return CallingConv::ARM_APCS;
-    } else if (Subtarget->hasVFP2() && !isVarArg)
+    } else if (Subtarget->hasVFP2() && !Subtarget->isThumb1Only() && !isVarArg)
       return CallingConv::ARM_AAPCS_VFP;
     else
       return CallingConv::ARM_AAPCS;
@@ -1634,8 +1604,9 @@ ARMTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
   ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>();
 
   if (EnableARMLongCalls) {
-    assert (getTargetMachine().getRelocationModel() == Reloc::Static
-            && "long-calls with non-static relocation model!");
+    assert((Subtarget->isTargetWindows() ||
+            getTargetMachine().getRelocationModel() == Reloc::Static) &&
+           "long-calls with non-static relocation model!");
     // Handle a global address or an external symbol. If it's not one of
     // those, the target's already in a register, so we don't need to do
     // anything extra.
@@ -2357,13 +2328,14 @@ ARMTargetLowering::LowerToTLSGeneralDynamicModel(GlobalAddressSDNode *GA,
   Entry.Node = Argument;
   Entry.Ty = (Type *) Type::getInt32Ty(*DAG.getContext());
   Args.push_back(Entry);
+
   // FIXME: is there useful debug info available here?
-  TargetLowering::CallLoweringInfo CLI(Chain,
-                (Type *) Type::getInt32Ty(*DAG.getContext()),
-                false, false, false, false,
-                0, CallingConv::C, /*isTailCall=*/false,
-                /*doesNotRet=*/false, /*isReturnValueUsed=*/true,
-                DAG.getExternalSymbol("__tls_get_addr", PtrVT), Args, DAG, dl);
+  TargetLowering::CallLoweringInfo CLI(DAG);
+  CLI.setDebugLoc(dl).setChain(Chain)
+    .setCallee(CallingConv::C, Type::getInt32Ty(*DAG.getContext()),
+               DAG.getExternalSymbol("__tls_get_addr", PtrVT), std::move(Args),
+               0);
+
   std::pair<SDValue, SDValue> CallResult = LowerCallTo(CLI);
   return CallResult.first;
 }
@@ -2571,6 +2543,11 @@ ARMTargetLowering::LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG,
   SDLoc dl(Op);
   switch (IntNo) {
   default: return SDValue();    // Don't custom lower most intrinsics.
+  case Intrinsic::arm_rbit: {
+    assert(Op.getOperand(0).getValueType() == MVT::i32 &&
+           "RBIT intrinsic must have i32 type!");
+    return DAG.getNode(ARMISD::RBIT, dl, MVT::i32, Op.getOperand(0));
+  }
   case Intrinsic::arm_thread_pointer: {
     EVT PtrVT = DAG.getTargetLoweringInfo().getPointerTy();
     return DAG.getNode(ARMISD::THREAD_POINTER, dl, PtrVT);
@@ -3907,14 +3884,16 @@ SDValue ARMTargetLowering::LowerRETURNADDR(SDValue Op, SelectionDAG &DAG) const{
 }
 
 SDValue ARMTargetLowering::LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const {
-  MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo();
+  const ARMBaseRegisterInfo &ARI =
+    *static_cast<const ARMBaseRegisterInfo*>(RegInfo);
+  MachineFunction &MF = DAG.getMachineFunction();
+  MachineFrameInfo *MFI = MF.getFrameInfo();
   MFI->setFrameAddressIsTaken(true);
 
   EVT VT = Op.getValueType();
   SDLoc dl(Op);  // FIXME probably not meaningful
   unsigned Depth = cast<ConstantSDNode>(Op.getOperand(0))->getZExtValue();
-  unsigned FrameReg = (Subtarget->isThumb() || Subtarget->isTargetMachO())
-    ? ARM::R7 : ARM::R11;
+  unsigned FrameReg = ARI.getFrameRegister(MF);
   SDValue FrameAddr = DAG.getCopyFromReg(DAG.getEntryNode(), dl, FrameReg, VT);
   while (Depth--)
     FrameAddr = DAG.getLoad(VT, dl, DAG.getEntryNode(), FrameAddr,
@@ -4526,6 +4505,11 @@ static SDValue isNEONModifiedImm(uint64_t SplatBits, uint64_t SplatUndef,
       BitMask <<= 8;
       ImmMask <<= 1;
     }
+
+    if (DAG.getTargetLoweringInfo().isBigEndian())
+      // swap higher and lower 32 bit word
+      Imm = ((Imm & 0xf) << 4) | ((Imm & 0xf0) >> 4);
+
     // Op=1, Cmode=1110.
     OpCmode = 0x1e;
     VT = is128Bits ? MVT::v2i64 : MVT::v1i64;
@@ -6109,12 +6093,12 @@ SDValue ARMTargetLowering::LowerFSINCOS(SDValue Op, SelectionDAG &DAG) const {
   ? "__sincos_stret" : "__sincosf_stret";
   SDValue Callee = DAG.getExternalSymbol(LibcallName, getPointerTy());
 
-  TargetLowering::
-  CallLoweringInfo CLI(DAG.getEntryNode(), Type::getVoidTy(*DAG.getContext()),
-                       false, false, false, false, 0,
-                       CallingConv::C, /*isTaillCall=*/false,
-                       /*doesNotRet=*/false, /*isReturnValueUsed*/false,
-                       Callee, Args, DAG, dl);
+  TargetLowering::CallLoweringInfo CLI(DAG);
+  CLI.setDebugLoc(dl).setChain(DAG.getEntryNode())
+    .setCallee(CallingConv::C, Type::getVoidTy(*DAG.getContext()), Callee,
+               std::move(Args), 0)
+    .setDiscardResult();
+
   std::pair<SDValue, SDValue> CallResult = LowerCallTo(CLI);
 
   SDValue LoadSin = DAG.getLoad(ArgVT, dl, CallResult.second, SRet,
@@ -6247,6 +6231,10 @@ SDValue ARMTargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const {
   case ISD::FSINCOS:       return LowerFSINCOS(Op, DAG);
   case ISD::SDIVREM:
   case ISD::UDIVREM:       return LowerDivRem(Op, DAG);
+  case ISD::DYNAMIC_STACKALLOC:
+    if (Subtarget->getTargetTriple().isWindowsItaniumEnvironment())
+      return LowerDYNAMIC_STACKALLOC(Op, DAG);
+    llvm_unreachable("Don't know how to custom lower this!");
   }
 }
 
@@ -7145,6 +7133,73 @@ ARMTargetLowering::EmitStructByval(MachineInstr *MI,
   return BB;
 }
 
+MachineBasicBlock *
+ARMTargetLowering::EmitLowered__chkstk(MachineInstr *MI,
+                                       MachineBasicBlock *MBB) const {
+  const TargetMachine &TM = getTargetMachine();
+  const TargetInstrInfo &TII = *TM.getInstrInfo();
+  DebugLoc DL = MI->getDebugLoc();
+
+  assert(Subtarget->isTargetWindows() &&
+         "__chkstk is only supported on Windows");
+  assert(Subtarget->isThumb2() && "Windows on ARM requires Thumb-2 mode");
+
+  // __chkstk takes the number of words to allocate on the stack in R4, and
+  // returns the stack adjustment in number of bytes in R4.  This will not
+  // clober any other registers (other than the obvious lr).
+  //
+  // Although, technically, IP should be considered a register which may be
+  // clobbered, the call itself will not touch it.  Windows on ARM is a pure
+  // thumb-2 environment, so there is no interworking required.  As a result, we
+  // do not expect a veneer to be emitted by the linker, clobbering IP.
+  //
+  // Each module receives its own copy of __chkstk, so no import thunk is
+  // required, again, ensuring that IP is not clobbered.
+  //
+  // Finally, although some linkers may theoretically provide a trampoline for
+  // out of range calls (which is quite common due to a 32M range limitation of
+  // branches for Thumb), we can generate the long-call version via
+  // -mcmodel=large, alleviating the need for the trampoline which may clobber
+  // IP.
+
+  switch (TM.getCodeModel()) {
+  case CodeModel::Small:
+  case CodeModel::Medium:
+  case CodeModel::Default:
+  case CodeModel::Kernel:
+    BuildMI(*MBB, MI, DL, TII.get(ARM::tBL))
+      .addImm((unsigned)ARMCC::AL).addReg(0)
+      .addExternalSymbol("__chkstk")
+      .addReg(ARM::R4, RegState::Implicit | RegState::Kill)
+      .addReg(ARM::R4, RegState::Implicit | RegState::Define)
+      .addReg(ARM::R12, RegState::Implicit | RegState::Define | RegState::Dead);
+    break;
+  case CodeModel::Large:
+  case CodeModel::JITDefault: {
+    MachineRegisterInfo &MRI = MBB->getParent()->getRegInfo();
+    unsigned Reg = MRI.createVirtualRegister(&ARM::rGPRRegClass);
+
+    BuildMI(*MBB, MI, DL, TII.get(ARM::t2MOVi32imm), Reg)
+      .addExternalSymbol("__chkstk");
+    BuildMI(*MBB, MI, DL, TII.get(ARM::tBLXr))
+      .addImm((unsigned)ARMCC::AL).addReg(0)
+      .addReg(Reg, RegState::Kill)
+      .addReg(ARM::R4, RegState::Implicit | RegState::Kill)
+      .addReg(ARM::R4, RegState::Implicit | RegState::Define)
+      .addReg(ARM::R12, RegState::Implicit | RegState::Define | RegState::Dead);
+    break;
+  }
+  }
+
+  AddDefaultCC(AddDefaultPred(BuildMI(*MBB, MI, DL, TII.get(ARM::t2SUBrr),
+                                      ARM::SP)
+                              .addReg(ARM::SP, RegState::Define)
+                              .addReg(ARM::R4, RegState::Kill)));
+
+  MI->eraseFromParent();
+  return MBB;
+}
+
 MachineBasicBlock *
 ARMTargetLowering::EmitInstrWithCustomInserter(MachineInstr *MI,
                                                MachineBasicBlock *BB) const {
@@ -7394,6 +7449,8 @@ ARMTargetLowering::EmitInstrWithCustomInserter(MachineInstr *MI,
   case ARM::COPY_STRUCT_BYVAL_I32:
     ++NumLoopByVals;
     return EmitStructByval(MI, BB);
+  case ARM::WIN__CHKSTK:
+    return EmitLowered__chkstk(MI, BB);
   }
 }
 
@@ -8349,6 +8406,8 @@ static SDValue PerformVMOVRRDCombine(SDNode *N,
                                  std::min(4U, LD->getAlignment() / 2));
 
     DAG.ReplaceAllUsesOfValueWith(SDValue(LD, 1), NewLD2.getValue(1));
+    if (DCI.DAG.getTargetLoweringInfo().isBigEndian())
+      std::swap (NewLD1, NewLD2);
     SDValue Result = DCI.CombineTo(N, NewLD1, NewLD2);
     DCI.RemoveFromWorklist(LD);
     DAG.DeleteNode(LD);
@@ -8416,7 +8475,8 @@ static SDValue PerformSTORECombine(SDNode *N,
     SDLoc DL(St);
     SDValue WideVec = DAG.getNode(ISD::BITCAST, DL, WideVecVT, StVal);
     SmallVector<int, 8> ShuffleVec(NumElems * SizeRatio, -1);
-    for (unsigned i = 0; i < NumElems; ++i) ShuffleVec[i] = i * SizeRatio;
+    for (unsigned i = 0; i < NumElems; ++i)
+      ShuffleVec[i] = TLI.isBigEndian() ? (i+1) * SizeRatio - 1 : i * SizeRatio;
 
     // Can't shuffle using an illegal type.
     if (!TLI.isTypeLegal(WideVecVT)) return SDValue();
@@ -9520,7 +9580,7 @@ ARMTargetLowering::PerformCMOVCombine(SDNode *N, SelectionDAG &DAG) const {
 
   if (Res.getNode()) {
     APInt KnownZero, KnownOne;
-    DAG.ComputeMaskedBits(SDValue(N,0), KnownZero, KnownOne);
+    DAG.computeKnownBits(SDValue(N,0), KnownZero, KnownOne);
     // Capture demanded bits information that would be otherwise lost.
     if (KnownZero == 0xfffffffe)
       Res = DAG.getNode(ISD::AssertZext, dl, MVT::i32, Res,
@@ -10107,11 +10167,11 @@ bool ARMTargetLowering::getPostIndexedAddressParts(SDNode *N, SDNode *Op,
   return true;
 }
 
-void ARMTargetLowering::computeMaskedBitsForTargetNode(const SDValue Op,
-                                                       APInt &KnownZero,
-                                                       APInt &KnownOne,
-                                                       const SelectionDAG &DAG,
-                                                       unsigned Depth) const {
+void ARMTargetLowering::computeKnownBitsForTargetNode(const SDValue Op,
+                                                      APInt &KnownZero,
+                                                      APInt &KnownOne,
+                                                      const SelectionDAG &DAG,
+                                                      unsigned Depth) const {
   unsigned BitWidth = KnownOne.getBitWidth();
   KnownZero = KnownOne = APInt(BitWidth, 0);
   switch (Op.getOpcode()) {
@@ -10127,11 +10187,11 @@ void ARMTargetLowering::computeMaskedBitsForTargetNode(const SDValue Op,
     break;
   case ARMISD::CMOV: {
     // Bits are known zero/one if known on the LHS and RHS.
-    DAG.ComputeMaskedBits(Op.getOperand(0), KnownZero, KnownOne, Depth+1);
+    DAG.computeKnownBits(Op.getOperand(0), KnownZero, KnownOne, Depth+1);
     if (KnownZero == 0 && KnownOne == 0) return;
 
     APInt KnownZeroRHS, KnownOneRHS;
-    DAG.ComputeMaskedBits(Op.getOperand(1), KnownZeroRHS, KnownOneRHS, Depth+1);
+    DAG.computeKnownBits(Op.getOperand(1), KnownZeroRHS, KnownOneRHS, Depth+1);
     KnownZero &= KnownZeroRHS;
     KnownOne  &= KnownOneRHS;
     return;
@@ -10503,16 +10563,41 @@ SDValue ARMTargetLowering::LowerDivRem(SDValue Op, SelectionDAG &DAG) const {
   Type *RetTy = (Type*)StructType::get(Ty, Ty, NULL);
 
   SDLoc dl(Op);
-  TargetLowering::
-  CallLoweringInfo CLI(InChain, RetTy, isSigned, !isSigned, false, true,
-                    0, getLibcallCallingConv(LC), /*isTailCall=*/false,
-                    /*doesNotReturn=*/false, /*isReturnValueUsed=*/true,
-                    Callee, Args, DAG, dl);
-  std::pair<SDValue, SDValue> CallInfo = LowerCallTo(CLI);
+  TargetLowering::CallLoweringInfo CLI(DAG);
+  CLI.setDebugLoc(dl).setChain(InChain)
+    .setCallee(getLibcallCallingConv(LC), RetTy, Callee, std::move(Args), 0)
+    .setInRegister().setSExtResult(isSigned).setZExtResult(!isSigned);
 
+  std::pair<SDValue, SDValue> CallInfo = LowerCallTo(CLI);
   return CallInfo.first;
 }
 
+SDValue
+ARMTargetLowering::LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG) const {
+  assert(Subtarget->isTargetWindows() && "unsupported target platform");
+  SDLoc DL(Op);
+
+  // Get the inputs.
+  SDValue Chain = Op.getOperand(0);
+  SDValue Size  = Op.getOperand(1);
+
+  SDValue Words = DAG.getNode(ISD::SRL, DL, MVT::i32, Size,
+                              DAG.getConstant(2, MVT::i32));
+
+  SDValue Flag;
+  Chain = DAG.getCopyToReg(Chain, DL, ARM::R4, Words, Flag);
+  Flag = Chain.getValue(1);
+
+  SDVTList NodeTys = DAG.getVTList(MVT::i32, MVT::Glue);
+  Chain = DAG.getNode(ARMISD::WIN__CHKSTK, DL, NodeTys, Chain, Flag);
+
+  SDValue NewSP = DAG.getCopyFromReg(Chain, DL, ARM::SP, MVT::i32);
+  Chain = NewSP.getValue(1);
+
+  SDValue Ops[2] = { NewSP, Chain };
+  return DAG.getMergeValues(Ops, DL);
+}
+
 bool
 ARMTargetLowering::isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const {
   // The ARM target isn't yet aware of offsets.
@@ -10670,14 +10755,20 @@ bool ARMTargetLowering::shouldConvertConstantLoadToIntImm(const APInt &Imm,
 bool ARMTargetLowering::shouldExpandAtomicInIR(Instruction *Inst) const {
   // Loads and stores less than 64-bits are already atomic; ones above that
   // are doomed anyway, so defer to the default libcall and blame the OS when
-  // things go wrong:
-  if (StoreInst *SI = dyn_cast<StoreInst>(Inst))
-    return SI->getValueOperand()->getType()->getPrimitiveSizeInBits() == 64;
-  else if (LoadInst *LI = dyn_cast<LoadInst>(Inst))
-    return LI->getType()->getPrimitiveSizeInBits() == 64;
+  // things go wrong. Cortex M doesn't have ldrexd/strexd though, so don't emit
+  // anything for those.
+  bool IsMClass = Subtarget->isMClass();
+  if (StoreInst *SI = dyn_cast<StoreInst>(Inst)) {
+    unsigned Size = SI->getValueOperand()->getType()->getPrimitiveSizeInBits();
+    return Size == 64 && !IsMClass;
+  } else if (LoadInst *LI = dyn_cast<LoadInst>(Inst)) {
+    return LI->getType()->getPrimitiveSizeInBits() == 64 && !IsMClass;
+  }
 
-  // For the real atomic operations, we have ldrex/strex up to 64 bits.
-  return Inst->getType()->getPrimitiveSizeInBits() <= 64;
+  // For the real atomic operations, we have ldrex/strex up to 32 bits,
+  // and up to 64 bits on the non-M profiles
+  unsigned AtomicLimit = IsMClass ? 32 : 64;
+  return Inst->getType()->getPrimitiveSizeInBits() <= AtomicLimit;
 }
 
 Value *ARMTargetLowering::emitLoadLinked(IRBuilder<> &Builder, Value *Addr,
@@ -10813,14 +10904,13 @@ static bool isHomogeneousAggregate(Type *Ty, HABaseType &Base,
 /// \brief Return true if a type is an AAPCS-VFP homogeneous aggregate.
 bool ARMTargetLowering::functionArgumentNeedsConsecutiveRegisters(
     Type *Ty, CallingConv::ID CallConv, bool isVarArg) const {
-  if (getEffectiveCallingConv(CallConv, isVarArg) ==
-      CallingConv::ARM_AAPCS_VFP) {
-    HABaseType Base = HA_UNKNOWN;
-    uint64_t Members = 0;
-    bool result = isHomogeneousAggregate(Ty, Base, Members);
-    DEBUG(dbgs() << "isHA: " << result << " "; Ty->dump(); dbgs() << "\n");
-    return result;
-  } else {
+  if (getEffectiveCallingConv(CallConv, isVarArg) !=
+      CallingConv::ARM_AAPCS_VFP)
     return false;
-  }
+
+  HABaseType Base = HA_UNKNOWN;
+  uint64_t Members = 0;
+  bool result = isHomogeneousAggregate(Ty, Base, Members);
+  DEBUG(dbgs() << "isHA: " << result << " "; Ty->dump(); dbgs() << "\n");
+  return result;
 }