Change uses of Function::front to Function::getEntryBlock for readability.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35265 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 8 insertions, 6 deletions

diff --git a/lib/Transforms/Utils/CloneFunction.cpp b/lib/Transforms/Utils/CloneFunction.cpp
index d80a83157a..cff58ab154 100644
--- a/lib/Transforms/Utils/CloneFunction.cpp
+++ b/lib/Transforms/Utils/CloneFunction.cpp
@@ -59,7 +59,7 @@ BasicBlock *llvm::CloneBasicBlock(const BasicBlock *BB,
     CodeInfo->ContainsUnwinds        |= isa<UnwindInst>(BB->getTerminator());
     CodeInfo->ContainsDynamicAllocas |= hasDynamicAllocas;
     CodeInfo->ContainsDynamicAllocas |= hasStaticAllocas && 
-                                        BB != &BB->getParent()->front();
+                                        BB != &BB->getParent()->getEntryBlock();
   }
   return NewBB;
 }
diff --git a/lib/Transforms/Utils/CodeExtractor.cpp b/lib/Transforms/Utils/CodeExtractor.cpp
index f304df2a93..a4e7ab8972 100644
--- a/lib/Transforms/Utils/CodeExtractor.cpp
+++ b/lib/Transforms/Utils/CodeExtractor.cpp
@@ -104,7 +104,7 @@ void CodeExtractor::severSplitPHINodes(BasicBlock *&Header) {
   bool HasPredsFromRegion = false;
   unsigned NumPredsOutsideRegion = 0;
 
-  if (Header != &Header->getParent()->front()) {
+  if (Header != &Header->getParent()->getEntryBlock()) {
     PHINode *PN = dyn_cast<PHINode>(Header->begin());
     if (!PN) return;  // No PHI nodes.
 
diff --git a/lib/Transforms/Utils/InlineFunction.cpp b/lib/Transforms/Utils/InlineFunction.cpp
index d57a8f58ab..a1a638b0c2 100644
--- a/lib/Transforms/Utils/InlineFunction.cpp
+++ b/lib/Transforms/Utils/InlineFunction.cpp
@@ -265,9 +265,10 @@ bool llvm::InlineFunction(CallSite CS, CallGraph *CG, const TargetData *TD) {
           // Transfer all of the allocas over in a block.  Using splice means
           // that the instructions aren't removed from the symbol table, then
           // reinserted.
-          Caller->front().getInstList().splice(InsertPoint,
-                                               FirstNewBlock->getInstList(),
-                                               AI, I);
+          Caller->getEntryBlock().getInstList().splice(
+              InsertPoint,
+              FirstNewBlock->getInstList(),
+              AI, I);
         }
       }
   }
diff --git a/lib/Transforms/Utils/SimplifyCFG.cpp b/lib/Transforms/Utils/SimplifyCFG.cpp
index 91664bf2d9..1bf72a1076 100644
--- a/lib/Transforms/Utils/SimplifyCFG.cpp
+++ b/lib/Transforms/Utils/SimplifyCFG.cpp
@@ -1185,7 +1185,8 @@ bool llvm::SimplifyCFG(BasicBlock *BB) {
 
   assert(BB && BB->getParent() && "Block not embedded in function!");
   assert(BB->getTerminator() && "Degenerate basic block encountered!");
-  assert(&BB->getParent()->front() != BB && "Can't Simplify entry block!");
+  assert(&BB->getParent()->getEntryBlock() != BB &&
+         "Can't Simplify entry block!");
 
   // Remove basic blocks that have no predecessors... which are unreachable.
   if (pred_begin(BB) == pred_end(BB) ||