ARC: Fix -Wimplicit-fallthrough

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@364195 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARC/ARCRegisterInfo.cpp b/lib/Target/ARC/ARCRegisterInfo.cpp
index 21f7110a9047f0994bd853766a36f49a4cdf28fe..9c8340ac8f81ad473202344c2e7bc76bb7ac9a49 100644 (file)
--- a/lib/Target/ARC/ARCRegisterInfo.cpp
+++ b/lib/Target/ARC/ARCRegisterInfo.cpp
@@ -82,9 +82,11 @@ static void ReplaceFrameIndex(MachineBasicBlock::iterator II,
   switch (MI.getOpcode()) {
   case ARC::LD_rs9:
     assert((Offset % 4 == 0) && "LD needs 4 byte alignment.");
+    LLVM_FALLTHROUGH;
   case ARC::LDH_rs9:
   case ARC::LDH_X_rs9:
     assert((Offset % 2 == 0) && "LDH needs 2 byte alignment.");
+    LLVM_FALLTHROUGH;
   case ARC::LDB_rs9:
   case ARC::LDB_X_rs9:
     LLVM_DEBUG(dbgs() << "Building LDFI\n");
@@ -95,8 +97,10 @@ static void ReplaceFrameIndex(MachineBasicBlock::iterator II,
     break;
   case ARC::ST_rs9:
     assert((Offset % 4 == 0) && "ST needs 4 byte alignment.");
+    LLVM_FALLTHROUGH;
   case ARC::STH_rs9:
     assert((Offset % 2 == 0) && "STH needs 2 byte alignment.");
+    LLVM_FALLTHROUGH;
   case ARC::STB_rs9:
     LLVM_DEBUG(dbgs() << "Building STFI\n");
     BuildMI(MBB, II, dl, TII.get(MI.getOpcode()))