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MIPS DSP: add code necessary for pseudo instruction lowering.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164747 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka 2012-09-27 01:59:07 +00:00
parent 7e105bcc3a
commit cc46fe591a
5 changed files with 22 additions and 2 deletions
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1
lib/Target/Mips/CMakeLists.txt
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@ -11,6 +11,7 @@ tablegen(LLVM MipsGenCallingConv.inc -gen-callingconv)
tablegen(LLVM MipsGenSubtargetInfo.inc -gen-subtarget)
tablegen(LLVM MipsGenEDInfo.inc -gen-enhanced-disassembly-info)
tablegen(LLVM MipsGenAsmMatcher.inc -gen-asm-matcher)
tablegen(LLVM MipsGenMCPseudoLowering.inc -gen-pseudo-lowering)
add_public_tablegen_target(MipsCommonTableGen)
add_llvm_target(MipsCodeGen

2
lib/Target/Mips/Makefile
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@ -17,7 +17,7 @@ BUILT_SOURCES = MipsGenRegisterInfo.inc MipsGenInstrInfo.inc \
MipsGenDAGISel.inc MipsGenCallingConv.inc \
MipsGenSubtargetInfo.inc MipsGenMCCodeEmitter.inc \
MipsGenEDInfo.inc MipsGenDisassemblerTables.inc \
MipsGenAsmMatcher.inc
MipsGenMCPseudoLowering.inc MipsGenAsmMatcher.inc
DIRS = InstPrinter Disassembler AsmParser TargetInfo MCTargetDesc

11
lib/Target/Mips/MipsAsmPrinter.cpp
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@ -50,6 +50,13 @@ bool MipsAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
return true;
}
bool MipsAsmPrinter::lowerOperand(const MachineOperand &MO, MCOperand &MCOp) {
MCOp = MCInstLowering.LowerOperand(MO);
return MCOp.isValid();
}
#include "MipsGenMCPseudoLowering.inc"
void MipsAsmPrinter::EmitInstruction(const MachineInstr *MI) {
if (MI->isDebugValue()) {
SmallString<128> Str;
@ -59,6 +66,10 @@ void MipsAsmPrinter::EmitInstruction(const MachineInstr *MI) {
return;
}
// Do any auto-generated pseudo lowerings.
if (emitPseudoExpansionLowering(OutStreamer, MI))
return;
MachineBasicBlock::const_instr_iterator I = MI;
MachineBasicBlock::const_instr_iterator E = MI->getParent()->instr_end();

8
lib/Target/Mips/MipsAsmPrinter.h
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@ -32,6 +32,14 @@ class LLVM_LIBRARY_VISIBILITY MipsAsmPrinter : public AsmPrinter {
void EmitInstrWithMacroNoAT(const MachineInstr *MI);
private:
// tblgen'erated function.
bool emitPseudoExpansionLowering(MCStreamer &OutStreamer,
const MachineInstr *MI);
// lowerOperand - Convert a MachineOperand into the equivalent MCOperand.
bool lowerOperand(const MachineOperand &MO, MCOperand &MCOp);
public:
const MipsSubtarget *Subtarget;

2
lib/Target/Mips/MipsMCInstLower.h
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@ -33,11 +33,11 @@ public:
MipsMCInstLower(MipsAsmPrinter &asmprinter);
void Initialize(Mangler *mang, MCContext *C);
void Lower(const MachineInstr *MI, MCInst &OutMI) const;
MCOperand LowerOperand(const MachineOperand& MO, unsigned offset = 0) const;
private:
MCOperand LowerSymbolOperand(const MachineOperand &MO,
MachineOperandType MOTy, unsigned Offset) const;
MCOperand LowerOperand(const MachineOperand& MO, unsigned offset = 0) const;
};
}