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mcize the non-gprel cases of AsmPrinter::printPICJumpTableEntry

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94450 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-01-25 21:22:22 +00:00
parent 798d125659
commit 1aca249252
1 changed files with 13 additions and 13 deletions
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26
lib/CodeGen/AsmPrinter/AsmPrinter.cpp
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@ -525,6 +525,8 @@ void AsmPrinter::EmitJumpTableInfo(MachineJumpTableInfo *MJTI,
OutStreamer.EmitLabel(GetJTISymbol(i));
if (!IsPic) {
// In non-pic mode, the entries in the jump table are direct references
// to the basic blocks.
unsigned EntrySize = MJTI->getEntrySize();
for (unsigned ii = 0, ee = JTBBs.size(); ii != ee; ++ii) {
MCSymbol *MBBSym = GetMBBSymbol(JTBBs[ii]->getNumber());
@ -546,25 +548,23 @@ void AsmPrinter::printPICJumpTableEntry(const MachineJumpTableInfo *MJTI,
O << GPRel32Dir << *GetMBBSymbol(MBB->getNumber()) << '\n';
return;
}
const char *JTEntryDirective = MJTI->getEntrySize() == 4 ?
MAI->getData32bitsDirective() : MAI->getData64bitsDirective();
O << JTEntryDirective << ' ';
// If we have emitted set directives for the jump table entries, print
// them rather than the entries themselves. If we're emitting PIC, then
// emit the table entries as differences between two text section labels.
// If we're emitting non-PIC code, then emit the entries as direct
// references to the target basic blocks.
const MCExpr *Val;
if (MAI->getSetDirective()) {
O << *GetJTSetSymbol(uid, MBB->getNumber());
// If we used .set, reference the .set's symbol.
Val = MCSymbolRefExpr::Create(GetJTSetSymbol(uid, MBB->getNumber()),
OutContext);
} else {
O << *GetMBBSymbol(MBB->getNumber());
// If the arch uses custom Jump Table directives, don't calc relative to
// JT.
O << '-' << *GetJTISymbol(uid);
// Otherwise, use the difference as the jump table entry.
Val = MCSymbolRefExpr::Create(GetMBBSymbol(MBB->getNumber()), OutContext);
const MCExpr *JTI = MCSymbolRefExpr::Create(GetJTISymbol(uid), OutContext);
Val = MCBinaryExpr::CreateSub(Val, JTI, OutContext);
}
O << '\n';
OutStreamer.EmitValue(Val, MJTI->getEntrySize(), /*addrspace*/0);
}