[PowerPC] Fix -Wimplicit-fallthrough warnings. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307382 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index f2228f8bdf4659632e92068f62e31303ec3fdd22..d1101126ad6a0e92ddc54215239e615870b7c1b9 100644 (file)
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -6646,6 +6646,7 @@ SDValue PPCTargetLowering::LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const {
     default: break;       // SETUO etc aren't handled by fsel.
     case ISD::SETNE:
       std::swap(TV, FV);
+      LLVM_FALLTHROUGH;
     case ISD::SETEQ:
       if (LHS.getValueType() == MVT::f32)   // Comparison is always 64-bits
         LHS = DAG.getNode(ISD::FP_EXTEND, dl, MVT::f64, LHS);
@@ -6657,6 +6658,7 @@ SDValue PPCTargetLowering::LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const {
     case ISD::SETULT:
     case ISD::SETLT:
       std::swap(TV, FV);  // fsel is natively setge, swap operands for setlt
+      LLVM_FALLTHROUGH;
     case ISD::SETOGE:
     case ISD::SETGE:
       if (LHS.getValueType() == MVT::f32)   // Comparison is always 64-bits
@@ -6665,6 +6667,7 @@ SDValue PPCTargetLowering::LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const {
     case ISD::SETUGT:
     case ISD::SETGT:
       std::swap(TV, FV);  // fsel is natively setge, swap operands for setlt
+      LLVM_FALLTHROUGH;
     case ISD::SETOLE:
     case ISD::SETLE:
       if (LHS.getValueType() == MVT::f32)   // Comparison is always 64-bits
@@ -6678,6 +6681,7 @@ SDValue PPCTargetLowering::LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const {
   default: break;       // SETUO etc aren't handled by fsel.
   case ISD::SETNE:
     std::swap(TV, FV);
+    LLVM_FALLTHROUGH;
   case ISD::SETEQ:
     Cmp = DAG.getNode(ISD::FSUB, dl, CmpVT, LHS, RHS, Flags);
     if (Cmp.getValueType() == MVT::f32)   // Comparison is always 64-bits