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author | Justin Holewinski <jholewinski@nvidia.com> | 2013-08-24 01:17:23 +0000 |
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committer | Justin Holewinski <jholewinski@nvidia.com> | 2013-08-24 01:17:23 +0000 |
commit | 30632d2fbb3c46e552a68aa7961b12eb44cece01 (patch) | |
tree | 0498806508d90f0dbe13a9302ba53ed5b304b8ab /lib/Target/NVPTX/NVPTXAsmPrinter.cpp | |
parent | 6b6a2ac6ca5aada4ff3d6882e0570338baed5a8b (diff) | |
download | external_llvm-30632d2fbb3c46e552a68aa7961b12eb44cece01.zip external_llvm-30632d2fbb3c46e552a68aa7961b12eb44cece01.tar.gz external_llvm-30632d2fbb3c46e552a68aa7961b12eb44cece01.tar.bz2 |
[NVPTX] Re-enable assembly printing support for inline assembly
This support was removed by accident during the MC conversion
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189160 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/NVPTX/NVPTXAsmPrinter.cpp')
-rw-r--r-- | lib/Target/NVPTX/NVPTXAsmPrinter.cpp | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/lib/Target/NVPTX/NVPTXAsmPrinter.cpp b/lib/Target/NVPTX/NVPTXAsmPrinter.cpp index a2b9bec..12f18c4 100644 --- a/lib/Target/NVPTX/NVPTXAsmPrinter.cpp +++ b/lib/Target/NVPTX/NVPTXAsmPrinter.cpp @@ -20,6 +20,7 @@ #include "NVPTXRegisterInfo.h" #include "NVPTXTargetMachine.h" #include "NVPTXUtilities.h" +#include "InstPrinter/NVPTXInstPrinter.h" #include "cl_common_defines.h" #include "llvm/ADT/StringExtras.h" #include "llvm/Analysis/ConstantFolding.h" @@ -1993,6 +1994,116 @@ bool NVPTXAsmPrinter::ignoreLoc(const MachineInstr &MI) { return false; } +/// PrintAsmOperand - Print out an operand for an inline asm expression. +/// +bool NVPTXAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo, + unsigned AsmVariant, + const char *ExtraCode, raw_ostream &O) { + if (ExtraCode && ExtraCode[0]) { + if (ExtraCode[1] != 0) + return true; // Unknown modifier. + + switch (ExtraCode[0]) { + default: + // See if this is a generic print operand + return AsmPrinter::PrintAsmOperand(MI, OpNo, AsmVariant, ExtraCode, O); + case 'r': + break; + } + } + + printOperand(MI, OpNo, O); + + return false; +} + +bool NVPTXAsmPrinter::PrintAsmMemoryOperand( + const MachineInstr *MI, unsigned OpNo, unsigned AsmVariant, + const char *ExtraCode, raw_ostream &O) { + if (ExtraCode && ExtraCode[0]) + return true; // Unknown modifier + + O << '['; + printMemOperand(MI, OpNo, O); + O << ']'; + + return false; +} + +void NVPTXAsmPrinter::printOperand(const MachineInstr *MI, int opNum, + raw_ostream &O, const char *Modifier) { + const MachineOperand &MO = MI->getOperand(opNum); + switch (MO.getType()) { + case MachineOperand::MO_Register: + if (TargetRegisterInfo::isPhysicalRegister(MO.getReg())) { + if (MO.getReg() == NVPTX::VRDepot) + O << DEPOTNAME << getFunctionNumber(); + else + O << NVPTXInstPrinter::getRegisterName(MO.getReg()); + } else { + emitVirtualRegister(MO.getReg(), false, O); + } + return; + + case MachineOperand::MO_Immediate: + if (!Modifier) + O << MO.getImm(); + else if (strstr(Modifier, "vec") == Modifier) + printVecModifiedImmediate(MO, Modifier, O); + else + llvm_unreachable( + "Don't know how to handle modifier on immediate operand"); + return; + + case MachineOperand::MO_FPImmediate: + printFPConstant(MO.getFPImm(), O); + break; + + case MachineOperand::MO_GlobalAddress: + O << *Mang->getSymbol(MO.getGlobal()); + break; + + case MachineOperand::MO_ExternalSymbol: { + const char *symbname = MO.getSymbolName(); + if (strstr(symbname, ".PARAM") == symbname) { + unsigned index; + sscanf(symbname + 6, "%u[];", &index); + printParamName(index, O); + } else if (strstr(symbname, ".HLPPARAM") == symbname) { + unsigned index; + sscanf(symbname + 9, "%u[];", &index); + O << *CurrentFnSym << "_param_" << index << "_offset"; + } else + O << symbname; + break; + } + + case MachineOperand::MO_MachineBasicBlock: + O << *MO.getMBB()->getSymbol(); + return; + + default: + llvm_unreachable("Operand type not supported."); + } +} + +void NVPTXAsmPrinter::printMemOperand(const MachineInstr *MI, int opNum, + raw_ostream &O, const char *Modifier) { + printOperand(MI, opNum, O); + + if (Modifier && !strcmp(Modifier, "add")) { + O << ", "; + printOperand(MI, opNum + 1, O); + } else { + if (MI->getOperand(opNum + 1).isImm() && + MI->getOperand(opNum + 1).getImm() == 0) + return; // don't print ',0' or '+0' + O << "+"; + printOperand(MI, opNum + 1, O); + } +} + + // Force static initialization. extern "C" void LLVMInitializeNVPTXBackendAsmPrinter() { RegisterAsmPrinter<NVPTXAsmPrinter> X(TheNVPTXTarget32); |