Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989

r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.

llvm-svn: 50265

1 files changed, 3 insertions, 7 deletions

diff --git a/llvm/lib/Transforms/Scalar/LoopUnroll.cpp b/llvm/lib/Transforms/Scalar/LoopUnroll.cpp
index 1962c14d5d6..18acb03b1b3 100644
--- a/llvm/lib/Transforms/Scalar/LoopUnroll.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopUnroll.cpp
@@ -405,14 +405,10 @@ bool LoopUnroll::unrollLoop(Loop *L, unsigned Count, unsigned Threshold) {
     }
     
     // Remap all instructions in the most recent iteration
-    for (unsigned i = 0; i < NewBlocks.size(); ++i) {
-      BasicBlock *NB = NewBlocks[i];
-      if (BasicBlock *UnwindDest = NB->getUnwindDest())
-        NB->setUnwindDest(cast<BasicBlock>(LastValueMap[UnwindDest]));
-
-      for (BasicBlock::iterator I = NB->begin(), E = NB->end(); I != E; ++I)
+    for (unsigned i = 0; i < NewBlocks.size(); ++i)
+      for (BasicBlock::iterator I = NewBlocks[i]->begin(),
+           E = NewBlocks[i]->end(); I != E; ++I)
         RemapInstruction(I, LastValueMap);
-    }
   }
   
   // The latch block exits the loop.  If there are any PHI nodes in the