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Now that printPICJumpTableSetLabel is not overloaded,

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inline it into its only caller, allowing us to simplify it
and hoist bits out of the loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94528 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-01-26 06:42:44 +00:00
parent 589c6f620e
commit 3b131d7cc4
2 changed files with 18 additions and 27 deletions
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5
include/llvm/CodeGen/AsmPrinter.h
View File

@ -348,11 +348,6 @@ namespace llvm {
/// printKill - This method prints the specified kill machine instruction.
void printKill(const MachineInstr *MI) const;
/// printPICJumpTableSetLabel - This method prints a set label for the
/// specified MachineBasicBlock for a jumptable entry.
virtual void printPICJumpTableSetLabel(unsigned uid,
const MachineBasicBlock *MBB) const;
/// printVisibility - This prints visibility information about symbol, if
/// this is suported by the target.
void printVisibility(MCSymbol *Sym, unsigned Visibility) const;

40
lib/CodeGen/AsmPrinter/AsmPrinter.cpp
View File

@ -505,8 +505,8 @@ void AsmPrinter::EmitJumpTableInfo(MachineFunction &MF) {
EmitAlignment(Log2_32(MJTI->getEntryAlignment(*TM.getTargetData())));
for (unsigned i = 0, e = JT.size(); i != e; ++i) {
const std::vector<MachineBasicBlock*> &JTBBs = JT[i].MBBs;
for (unsigned JTI = 0, e = JT.size(); JTI != e; ++JTI) {
const std::vector<MachineBasicBlock*> &JTBBs = JT[JTI].MBBs;
// If this jump table was deleted, ignore it.
if (JTBBs.empty()) continue;
@ -516,11 +516,19 @@ void AsmPrinter::EmitJumpTableInfo(MachineFunction &MF) {
// relocations the assembler will generate for the jump table.
if (MJTI->getEntryKind() == MachineJumpTableInfo::EK_LabelDifference32 &&
MAI->getSetDirective()) {
SmallPtrSet<MachineBasicBlock*, 16> EmittedSets;
for (unsigned ii = 0, ee = JTBBs.size(); ii != ee; ++ii)
if (EmittedSets.insert(JTBBs[ii]))
printPICJumpTableSetLabel(i, JTBBs[ii]);
}
SmallPtrSet<const MachineBasicBlock*, 16> EmittedSets;
const TargetLowering *TLI = TM.getTargetLowering();
const MCExpr *Base = TLI->getPICJumpTableRelocBaseExpr(&MF, JTI,
OutContext);
for (unsigned ii = 0, ee = JTBBs.size(); ii != ee; ++ii) {
const MachineBasicBlock *MBB = JTBBs[ii];
if (!EmittedSets.insert(MBB)) continue;
O << MAI->getSetDirective() << ' '
<< *GetJTSetSymbol(JTI, MBB->getNumber()) << ','
<< *MBB->getSymbol(OutContext) << '-' << *Base << '\n';
}
}
// On some targets (e.g. Darwin) we want to emit two consequtive labels
// before each jump table. The first label is never referenced, but tells
@ -529,12 +537,12 @@ void AsmPrinter::EmitJumpTableInfo(MachineFunction &MF) {
if (JTInDiffSection && MAI->getLinkerPrivateGlobalPrefix()[0])
// FIXME: This doesn't have to have any specific name, just any randomly
// named and numbered 'l' label would work. Simplify GetJTISymbol.
OutStreamer.EmitLabel(GetJTISymbol(i, true));
OutStreamer.EmitLabel(GetJTISymbol(JTI, true));
OutStreamer.EmitLabel(GetJTISymbol(i));
OutStreamer.EmitLabel(GetJTISymbol(JTI));
for (unsigned ii = 0, ee = JTBBs.size(); ii != ee; ++ii)
EmitJumpTableEntry(MJTI, JTBBs[ii], i);
EmitJumpTableEntry(MJTI, JTBBs[ii], JTI);
}
}
@ -1542,18 +1550,6 @@ void AsmPrinter::EmitBasicBlockStart(const MachineBasicBlock *MBB) const {
}
}
/// printPICJumpTableSetLabel - This method prints a set label for the
/// specified MachineBasicBlock for a jumptable entry.
void AsmPrinter::printPICJumpTableSetLabel(unsigned uid,
const MachineBasicBlock *MBB) const {
const TargetLowering *TLI = TM.getTargetLowering();
O << MAI->getSetDirective() << ' ' << MAI->getPrivateGlobalPrefix()
<< *GetJTSetSymbol(uid, MBB->getNumber()) << ','
<< *MBB->getSymbol(OutContext) << '-'
<< *TLI->getPICJumpTableRelocBaseExpr(MF, uid, OutContext)
<< '\n';
}
void AsmPrinter::printVisibility(MCSymbol *Sym, unsigned Visibility) const {
MCSymbolAttr Attr = MCSA_Invalid;