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This is just a clean-up patch that simplifies the initial-exec TLS logic by 

avoiding use of machine operand flags.  No change in observable behavior, so
no new test cases.

llvm-svn: 170141
This commit is contained in:
Bill Schmidt 2012-12-13 18:45:54 +00:00
parent 05394352c0
commit 732eb91f05
4 changed files with 7 additions and 19 deletions
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4
llvm/lib/Target/PowerPC/PPC.h
View File

@ -72,9 +72,7 @@ namespace llvm {
MO_HA16 = 2 << 5,
MO_TPREL16_HA = 3 << 5,
MO_TPREL16_LO = 4 << 5,
MO_GOT_TPREL16_DS = 5 << 5,
MO_TLS = 6 << 5
MO_TPREL16_LO = 4 << 5
};
} // end namespace PPCII

14
llvm/lib/Target/PowerPC/PPCISelLowering.cpp
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@ -1351,15 +1351,11 @@ SDValue PPCTargetLowering::LowerGlobalTLSAddress(SDValue Op,
llvm_unreachable("only local-exec is currently supported for ppc32");
if (Model == TLSModel::InitialExec) {
SDValue GOTOffset = DAG.getTargetGlobalAddress(GV, dl, PtrVT, 0,
PPCII::MO_GOT_TPREL16_DS);
SDValue TPReg = DAG.getTargetGlobalAddress(GV, dl, PtrVT, 0,
PPCII::MO_TLS);
SDValue GOTReg = DAG.getRegister(is64bit ? PPC::X2 : PPC::R2,
is64bit ? MVT::i64 : MVT::i32);
SDValue TPOffset = DAG.getNode(PPCISD::LD_GOT_TPREL, dl, PtrVT,
GOTOffset, GOTReg);
return DAG.getNode(PPCISD::ADD_TLS, dl, PtrVT, TPOffset, TPReg);
SDValue TGA = DAG.getTargetGlobalAddress(GV, dl, PtrVT, 0, 0);
SDValue GOTReg = DAG.getRegister(PPC::X2, MVT::i64);
SDValue TPOffset = DAG.getNode(PPCISD::LD_GOT_TPREL, dl,
PtrVT, TGA, GOTReg);
return DAG.getNode(PPCISD::ADD_TLS, dl, PtrVT, TPOffset, TGA);
}
if (Model == TLSModel::GeneralDynamic) {

2
llvm/lib/Target/PowerPC/PPCInstr64Bit.td
View File

@ -384,7 +384,7 @@ def ADD8 : XOForm_1<31, 266, 0, (outs G8RC:$rT), (ins G8RC:$rA, G8RC:$rB),
// ADD8 has a special form: reg = ADD8(reg, sym@tls) for use by the
// initial-exec thread-local storage model.
def ADD8TLS : XOForm_1<31, 266, 0, (outs G8RC:$rT), (ins G8RC:$rA, tlsreg:$rB),
"add $rT, $rA, $rB", IntSimple,
"add $rT, $rA, $rB@tls", IntSimple,
[(set G8RC:$rT, (add G8RC:$rA, tglobaltlsaddr:$rB))]>;
let Defs = [CARRY] in {

6
llvm/lib/Target/PowerPC/PPCMCInstLower.cpp
View File

@ -114,12 +114,6 @@ static MCOperand GetSymbolRef(const MachineOperand &MO, const MCSymbol *Symbol,
break;
case PPCII::MO_TPREL16_LO: RefKind = MCSymbolRefExpr::VK_PPC_TPREL16_LO;
break;
case PPCII::MO_GOT_TPREL16_DS:
RefKind = MCSymbolRefExpr::VK_PPC_GOT_TPREL16_DS;
break;
case PPCII::MO_TLS:
RefKind = MCSymbolRefExpr::VK_PPC_TLS;
break;
}
// FIXME: This isn't right, but we don't have a good way to express this in