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Large code model support for PowerPC.

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Large code model is identical to medium code model except that the
addis/addi sequence for "local" accesses is never used.  All accesses
use the addis/ld sequence.

The coding changes are straightforward; most of the patch is taken up
with creating variants of the medium model tests for large model.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175767 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Schmidt
2013-02-21 17:12:27 +00:00
parent f6c80bde65
commit 53b0b0e754
15 changed files with 227 additions and 109 deletions
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7
lib/Target/PowerPC/PPCAsmPrinter.cpp
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@@ -464,12 +464,15 @@ void PPCAsmPrinter::EmitInstruction(const MachineInstr *MI) {
// associated TOC entry. Otherwise reference the symbol directly.
TmpInst.setOpcode(PPC::LDrs);
const MachineOperand &MO = MI->getOperand(1);
assert((MO.isGlobal() || MO.isJTI()) && "Invalid operand for LDtocL!");
assert((MO.isGlobal() || MO.isJTI() || MO.isCPI()) &&
"Invalid operand for LDtocL!");
MCSymbol *MOSymbol = 0;
if (MO.isJTI())
MOSymbol = lookUpOrCreateTOCEntry(GetJTISymbol(MO.getIndex()));
else {
else if (MO.isCPI())
MOSymbol = GetCPISymbol(MO.getIndex());
else if (MO.isGlobal()) {
const GlobalValue *GValue = MO.getGlobal();
const GlobalAlias *GAlias = dyn_cast<GlobalAlias>(GValue);
const GlobalValue *RealGValue = GAlias ?