diff options
Diffstat (limited to 'llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp')
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp b/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp index 16325e76098..168df47c19e 100644 --- a/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp +++ b/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp @@ -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 |
