diff options
Diffstat (limited to 'llvm/lib/Target/Mips/MipsAsmPrinter.cpp')
-rw-r--r-- | llvm/lib/Target/Mips/MipsAsmPrinter.cpp | 86 |
1 files changed, 62 insertions, 24 deletions
diff --git a/llvm/lib/Target/Mips/MipsAsmPrinter.cpp b/llvm/lib/Target/Mips/MipsAsmPrinter.cpp index a44d97ff8d1..d7b7f06c72d 100644 --- a/llvm/lib/Target/Mips/MipsAsmPrinter.cpp +++ b/llvm/lib/Target/Mips/MipsAsmPrinter.cpp @@ -13,13 +13,17 @@ //===----------------------------------------------------------------------===// #define DEBUG_TYPE "mips-asm-printer" -#include "MipsAsmPrinter.h" #include "Mips.h" +#include "MipsAsmPrinter.h" #include "MipsInstrInfo.h" #include "MipsMachineFunction.h" #include "MipsMCInstLower.h" #include "MipsMCSymbolRefExpr.h" #include "InstPrinter/MipsInstPrinter.h" +#include "llvm/ADT/SmallString.h" +#include "llvm/ADT/StringExtras.h" +#include "llvm/ADT/Twine.h" +#include "llvm/Analysis/DebugInfo.h" #include "llvm/BasicBlock.h" #include "llvm/Instructions.h" #include "llvm/CodeGen/MachineFunctionPass.h" @@ -27,19 +31,17 @@ #include "llvm/CodeGen/MachineFrameInfo.h" #include "llvm/CodeGen/MachineInstr.h" #include "llvm/CodeGen/MachineMemOperand.h" +#include "llvm/Instructions.h" #include "llvm/MC/MCStreamer.h" #include "llvm/MC/MCAsmInfo.h" #include "llvm/MC/MCInst.h" #include "llvm/MC/MCSymbol.h" +#include "llvm/Support/TargetRegistry.h" +#include "llvm/Support/raw_ostream.h" #include "llvm/Target/Mangler.h" #include "llvm/Target/TargetData.h" #include "llvm/Target/TargetLoweringObjectFile.h" #include "llvm/Target/TargetOptions.h" -#include "llvm/ADT/SmallString.h" -#include "llvm/ADT/Twine.h" -#include "llvm/Support/TargetRegistry.h" -#include "llvm/Support/raw_ostream.h" -#include "llvm/Analysis/DebugInfo.h" using namespace llvm; @@ -50,6 +52,12 @@ static bool isUnalignedLoadStore(unsigned Opc) { Opc == Mips::USW_P8 || Opc == Mips::USH_P8; } +static bool isDirective(unsigned Opc) { + return Opc == Mips::MACRO || Opc == Mips::NOMACRO || + Opc == Mips::REORDER || Opc == Mips::NOREORDER || + Opc == Mips::ATMACRO || Opc == Mips::NOAT; +} + void MipsAsmPrinter::EmitInstruction(const MachineInstr *MI) { SmallString<128> Str; raw_svector_ostream OS(Str); @@ -62,8 +70,12 @@ void MipsAsmPrinter::EmitInstruction(const MachineInstr *MI) { MipsMCInstLower MCInstLowering(Mang, *MF, *this); unsigned Opc = MI->getOpcode(); MCInst TmpInst0; + SmallVector<MCInst, 4> MCInsts; MCInstLowering.Lower(MI, TmpInst0); - + + if (!OutStreamer.hasRawTextSupport() && isDirective(Opc)) + return; + // Enclose unaligned load or store with .macro & .nomacro directives. if (isUnalignedLoadStore(Opc)) { MCInst Directive; @@ -75,6 +87,23 @@ void MipsAsmPrinter::EmitInstruction(const MachineInstr *MI) { return; } + if (!OutStreamer.hasRawTextSupport()) { + // Lower CPLOAD and CPRESTORE + if (Opc == Mips::CPLOAD) { + MCInstLowering.LowerCPLOAD(MI, MCInsts); + for (SmallVector<MCInst, 4>::iterator I = MCInsts.begin(); + I != MCInsts.end(); ++I) + OutStreamer.EmitInstruction(*I); + return; + } + + if (Opc == Mips::CPRESTORE) { + MCInstLowering.LowerCPRESTORE(MI, TmpInst0); + OutStreamer.EmitInstruction(TmpInst0); + return; + } + } + OutStreamer.EmitInstruction(TmpInst0); } @@ -191,7 +220,8 @@ void MipsAsmPrinter::emitFrameDirective() { unsigned returnReg = RI.getRARegister(); unsigned stackSize = MF->getFrameInfo()->getStackSize(); - OutStreamer.EmitRawText("\t.frame\t$" + + if (OutStreamer.hasRawTextSupport()) + OutStreamer.EmitRawText("\t.frame\t$" + StringRef(MipsInstPrinter::getRegisterName(stackReg)).lower() + "," + Twine(stackSize) + ",$" + StringRef(MipsInstPrinter::getRegisterName(returnReg)).lower()); @@ -212,7 +242,8 @@ const char *MipsAsmPrinter::getCurrentABIString() const { } void MipsAsmPrinter::EmitFunctionEntryLabel() { - OutStreamer.EmitRawText("\t.ent\t" + Twine(CurrentFnSym->getName())); + if (OutStreamer.hasRawTextSupport()) + OutStreamer.EmitRawText("\t.ent\t" + Twine(CurrentFnSym->getName())); OutStreamer.EmitLabel(CurrentFnSym); } @@ -221,10 +252,12 @@ void MipsAsmPrinter::EmitFunctionEntryLabel() { void MipsAsmPrinter::EmitFunctionBodyStart() { emitFrameDirective(); - SmallString<128> Str; - raw_svector_ostream OS(Str); - printSavedRegsBitmask(OS); - OutStreamer.EmitRawText(OS.str()); + if (OutStreamer.hasRawTextSupport()) { + SmallString<128> Str; + raw_svector_ostream OS(Str); + printSavedRegsBitmask(OS); + OutStreamer.EmitRawText(OS.str()); + } } /// EmitFunctionBodyEnd - Targets can override this to emit stuff after @@ -233,12 +266,13 @@ void MipsAsmPrinter::EmitFunctionBodyEnd() { // There are instruction for this macros, but they must // always be at the function end, and we can't emit and // break with BB logic. - OutStreamer.EmitRawText(StringRef("\t.set\tmacro")); - OutStreamer.EmitRawText(StringRef("\t.set\treorder")); - OutStreamer.EmitRawText("\t.end\t" + Twine(CurrentFnSym->getName())); + if (OutStreamer.hasRawTextSupport()) { + OutStreamer.EmitRawText(StringRef("\t.set\tmacro")); + OutStreamer.EmitRawText(StringRef("\t.set\treorder")); + OutStreamer.EmitRawText("\t.end\t" + Twine(CurrentFnSym->getName())); + } } - /// isBlockOnlyReachableByFallthough - Return true if the basic block has /// exactly one predecessor and the control transfer mechanism between /// the predecessor and this block is a fall-through. @@ -419,18 +453,22 @@ void MipsAsmPrinter::EmitStartOfAsmFile(Module &M) { // FIXME: Use SwitchSection. // Tell the assembler which ABI we are using - OutStreamer.EmitRawText("\t.section .mdebug." + Twine(getCurrentABIString())); + if (OutStreamer.hasRawTextSupport()) + OutStreamer.EmitRawText("\t.section .mdebug." + Twine(getCurrentABIString())); // TODO: handle O64 ABI - if (Subtarget->isABI_EABI()) { - if (Subtarget->isGP32bit()) - OutStreamer.EmitRawText(StringRef("\t.section .gcc_compiled_long32")); - else - OutStreamer.EmitRawText(StringRef("\t.section .gcc_compiled_long64")); + if (OutStreamer.hasRawTextSupport()) { + if (Subtarget->isABI_EABI()) { + if (Subtarget->isGP32bit()) + OutStreamer.EmitRawText(StringRef("\t.section .gcc_compiled_long32")); + else + OutStreamer.EmitRawText(StringRef("\t.section .gcc_compiled_long64")); + } } // return to previous section - OutStreamer.EmitRawText(StringRef("\t.previous")); + if (OutStreamer.hasRawTextSupport()) + OutStreamer.EmitRawText(StringRef("\t.previous")); } MachineLocation |