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Appease compilers that have the -Wcovered-switch-default switch.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@310356 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nemanja Ivanovic 2017-08-08 12:41:56 +00:00
parent 6857e48262
commit b5087f140c
1 changed files with 5 additions and 2 deletions
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7
lib/Target/PowerPC/PPCISelDAGToDAG.cpp
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@ -2814,7 +2814,6 @@ SDValue PPCDAGToDAGISel::getCompoundZeroComparisonInGPR(SDValue LHS, SDLoc dl,
// Produce the value that needs to be either zero or sign extended.
switch (CmpTy) {
default: llvm_unreachable("Unknown Zero-comparison type.");
case ZeroCompare::GEZExt:
case ZeroCompare::GESExt:
ToExtend = SDValue(CurDAG->getMachineNode(Is32Bit ? PPC::NOR : PPC::NOR8,
@ -2850,7 +2849,6 @@ SDValue PPCDAGToDAGISel::getCompoundZeroComparisonInGPR(SDValue LHS, SDLoc dl,
assert(Is32Bit && "Should have handled the 32-bit sequences above.");
// For 32-bit sequences, the extensions differ between GE/LE cases.
switch (CmpTy) {
default: llvm_unreachable("Unknown Zero-comparison type.");
case ZeroCompare::GEZExt: {
SDValue ShiftOps[] =
{ ToExtend, getI32Imm(1, dl), getI32Imm(31, dl), getI32Imm(31, dl) };
@ -2867,6 +2865,11 @@ SDValue PPCDAGToDAGISel::getCompoundZeroComparisonInGPR(SDValue LHS, SDLoc dl,
return SDValue(CurDAG->getMachineNode(PPC::ADDI, dl, MVT::i32, ToExtend,
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();
}
/// Produces a zero-extended result of comparing two 32-bit values according to