Replace "fallthrough" comments with LLVM_FALLTHROUGH

This is a mechanical change of comments in switches like fallthrough,
fall-through, or fall-thru to use the LLVM_FALLTHROUGH macro instead.

llvm-svn: 278902

3 files changed, 6 insertions, 5 deletions

diff --git a/llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp b/llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp
index 9297eb34a48..7602947d5bd 100644
--- a/llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp
@@ -275,7 +275,7 @@ InductiveRangeCheck::parseRangeCheckICmp(Loop *L, ICmpInst *ICI,
 
   case ICmpInst::ICMP_SLE:
     std::swap(LHS, RHS);
-  // fallthrough
+    LLVM_FALLTHROUGH;
   case ICmpInst::ICMP_SGE:
     if (match(RHS, m_ConstantInt<0>())) {
       Index = LHS;
@@ -285,7 +285,7 @@ InductiveRangeCheck::parseRangeCheckICmp(Loop *L, ICmpInst *ICI,
 
   case ICmpInst::ICMP_SLT:
     std::swap(LHS, RHS);
-  // fallthrough
+    LLVM_FALLTHROUGH;
   case ICmpInst::ICMP_SGT:
     if (match(RHS, m_ConstantInt<-1>())) {
       Index = LHS;
@@ -301,7 +301,7 @@ InductiveRangeCheck::parseRangeCheckICmp(Loop *L, ICmpInst *ICI,
 
   case ICmpInst::ICMP_ULT:
     std::swap(LHS, RHS);
-  // fallthrough
+    LLVM_FALLTHROUGH;
   case ICmpInst::ICMP_UGT:
     if (IsNonNegativeAndNotLoopVarying(LHS)) {
       Index = RHS;
diff --git a/llvm/lib/Transforms/Scalar/LoopRotation.cpp b/llvm/lib/Transforms/Scalar/LoopRotation.cpp
index cb95284a1d7..4498e1db521 100644
--- a/llvm/lib/Transforms/Scalar/LoopRotation.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopRotation.cpp
@@ -501,7 +501,8 @@ static bool shouldSpeculateInstrs(BasicBlock::iterator Begin,
       // GEPs are cheap if all indices are constant.
       if (!cast<GEPOperator>(I)->hasAllConstantIndices())
         return false;
-    // fall-thru to increment case
+      // fall-thru to increment case
+      LLVM_FALLTHROUGH;
     case Instruction::Add:
     case Instruction::Sub:
     case Instruction::And:
diff --git a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp b/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
index a8af53f58e0..ee8c324b727 100644
--- a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -770,7 +770,7 @@ static void copyMetadata(Instruction *DstInst, const Instruction *SrcInst,
           MD.second = NewMD;
         }
       }
-      // fallthrough.
+      LLVM_FALLTHROUGH;
     case LLVMContext::MD_make_implicit:
     case LLVMContext::MD_dbg:
       DstInst->setMetadata(MD.first, MD.second);