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-rw-r--r--lib/Target/Mips/MipsAsmPrinter.cpp118
1 files changed, 80 insertions, 38 deletions
diff --git a/lib/Target/Mips/MipsAsmPrinter.cpp b/lib/Target/Mips/MipsAsmPrinter.cpp
index 0e82681..a5505d3 100644
--- a/lib/Target/Mips/MipsAsmPrinter.cpp
+++ b/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 "MCTargetDesc/MipsBaseInfo.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"
@@ -27,20 +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/StringExtras.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;
@@ -51,6 +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);
@@ -63,19 +70,45 @@ 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;
- Directive.setOpcode(Mips::MACRO);
- OutStreamer.EmitInstruction(Directive);
- OutStreamer.EmitInstruction(TmpInst0);
- Directive.setOpcode(Mips::NOMACRO);
- OutStreamer.EmitInstruction(Directive);
+ if (OutStreamer.hasRawTextSupport()) {
+ MCInst Directive;
+ Directive.setOpcode(Mips::MACRO);
+ OutStreamer.EmitInstruction(Directive);
+ OutStreamer.EmitInstruction(TmpInst0);
+ Directive.setOpcode(Mips::NOMACRO);
+ OutStreamer.EmitInstruction(Directive);
+ } else {
+ MCInstLowering.LowerUnalignedLoadStore(MI, MCInsts);
+ for (SmallVector<MCInst, 4>::iterator I = MCInsts.begin(); I
+ != MCInsts.end(); ++I)
+ OutStreamer.EmitInstruction(*I);
+ }
return;
}
+ if (!OutStreamer.hasRawTextSupport()) {
+ // Lower CPLOAD and CPRESTORE
+ if (Opc == Mips::CPLOAD)
+ MCInstLowering.LowerCPLOAD(MI, MCInsts);
+ else if (Opc == Mips::CPRESTORE)
+ MCInstLowering.LowerCPRESTORE(MI, MCInsts);
+
+ if (!MCInsts.empty()) {
+ for (SmallVector<MCInst, 4>::iterator I = MCInsts.begin();
+ I != MCInsts.end(); ++I)
+ OutStreamer.EmitInstruction(*I);
+ return;
+ }
+ }
+
OutStreamer.EmitInstruction(TmpInst0);
}
@@ -177,7 +210,7 @@ void MipsAsmPrinter::printSavedRegsBitmask(raw_ostream &O) {
void MipsAsmPrinter::printHex32(unsigned Value, raw_ostream &O) {
O << "0x";
for (int i = 7; i >= 0; i--)
- O << utohexstr((Value & (0xF << (i*4))) >> (i*4));
+ O.write_hex((Value & (0xF << (i*4))) >> (i*4));
}
//===----------------------------------------------------------------------===//
@@ -192,10 +225,11 @@ void MipsAsmPrinter::emitFrameDirective() {
unsigned returnReg = RI.getRARegister();
unsigned stackSize = MF->getFrameInfo()->getStackSize();
- OutStreamer.EmitRawText("\t.frame\t$" +
- Twine(LowercaseString(MipsInstPrinter::getRegisterName(stackReg))) +
+ if (OutStreamer.hasRawTextSupport())
+ OutStreamer.EmitRawText("\t.frame\t$" +
+ StringRef(MipsInstPrinter::getRegisterName(stackReg)).lower() +
"," + Twine(stackSize) + ",$" +
- Twine(LowercaseString(MipsInstPrinter::getRegisterName(returnReg))));
+ StringRef(MipsInstPrinter::getRegisterName(returnReg)).lower());
}
/// Emit Set directives.
@@ -213,7 +247,8 @@ 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);
}
@@ -222,10 +257,12 @@ 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
@@ -234,12 +271,13 @@ 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.
@@ -277,9 +315,9 @@ bool MipsAsmPrinter::isBlockOnlyReachableByFallthrough(const MachineBasicBlock*
// Otherwise, check the last instruction.
// Check if the last terminator is an unconditional branch.
MachineBasicBlock::const_iterator I = Pred->end();
- while (I != Pred->begin() && !(--I)->getDesc().isTerminator()) ;
+ while (I != Pred->begin() && !(--I)->isTerminator()) ;
- return !I->getDesc().isBarrier();
+ return !I->isBarrier();
}
// Print out an operand for an inline asm expression.
@@ -335,7 +373,7 @@ void MipsAsmPrinter::printOperand(const MachineInstr *MI, int opNum,
switch (MO.getType()) {
case MachineOperand::MO_Register:
O << '$'
- << LowercaseString(MipsInstPrinter::getRegisterName(MO.getReg()));
+ << StringRef(MipsInstPrinter::getRegisterName(MO.getReg())).lower();
break;
case MachineOperand::MO_Immediate:
@@ -420,18 +458,22 @@ 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
generated by cgit v1.1 at 2025-11-10 23:56:48 +0000