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My commit r310346 introduced some valid warnings. This cleans them up. 

llvm-svn: 310424
This commit is contained in:
Nemanja Ivanovic 2017-08-08 22:17:31 +00:00
parent 8fbb4c40b3
commit 3f98fb4a3f
1 changed files with 9 additions and 6 deletions
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15
llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
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@ -2818,6 +2818,7 @@ SDValue PPCDAGToDAGISel::getCompoundZeroComparisonInGPR(SDValue LHS, SDLoc dl,
case ZeroCompare::GESExt:
ToExtend = SDValue(CurDAG->getMachineNode(Is32Bit ? PPC::NOR : PPC::NOR8,
dl, InVT, LHS, LHS), 0);
break;
case ZeroCompare::LEZExt:
case ZeroCompare::LESExt: {
if (Is32Bit) {
@ -2834,15 +2835,18 @@ SDValue PPCDAGToDAGISel::getCompoundZeroComparisonInGPR(SDValue LHS, SDLoc dl,
ToExtend = SDValue(CurDAG->getMachineNode(PPC::OR8, dl, MVT::i64,
Addi, LHS), 0);
}
break;
}
}
// For 64-bit sequences, the extensions are the same for the GE/LE cases.
if (!Is32Bit && (CmpTy == ZeroCompare::GEZExt || ZeroCompare::LEZExt))
if (!Is32Bit &&
(CmpTy == ZeroCompare::GEZExt || CmpTy == ZeroCompare::LEZExt))
return SDValue(CurDAG->getMachineNode(PPC::RLDICL, dl, MVT::i64,
ToExtend, getI64Imm(1, dl),
getI64Imm(63, dl)), 0);
if (!Is32Bit && (CmpTy == ZeroCompare::GESExt || ZeroCompare::LESExt))
if (!Is32Bit &&
(CmpTy == ZeroCompare::GESExt || CmpTy == ZeroCompare::LESExt))
return SDValue(CurDAG->getMachineNode(PPC::SRADI, dl, MVT::i64, ToExtend,
getI64Imm(63, dl)), 0);
@ -2866,10 +2870,9 @@ SDValue PPCDAGToDAGISel::getCompoundZeroComparisonInGPR(SDValue LHS, SDLoc dl,
getI32Imm(-1, dl)), 0);
}
// Some compilers warn if there's a default label in the switch above, others
// warn if there isn't a return statement here or in a default label. Appease
// both (even though this is unreachable).
return SDValue();
// The above case covers all the enumerators so it can't have a default clause
// to avoid compiler warnings.
llvm_unreachable("Unknown zero-comparison type.");
}
/// Produces a zero-extended result of comparing two 32-bit values according to