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 (TM.getSubtarget<ARMSubtarget>().isTargetWindows())
+ 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();
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()) {
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);
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()) {
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";
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.
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!");
}
}
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 recieves 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 {
case ARM::COPY_STRUCT_BYVAL_I32:
++NumLoopByVals;
return EmitStructByval(MI, BB);
+ case ARM::WIN__CHKSTK:
+ return EmitLowered__chkstk(MI, BB);
}
}
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);
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.
/// \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;
}
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