Update comment for r149070.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149075 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/MachineBasicBlock.cpp b/lib/CodeGen/MachineBasicBlock.cpp
index 0205c0af05e9fd0b971ca7671aa26c6be709ab21..a991ee425f667cc988ae6f4f2c338bd6c0a8e94e 100644 (file)
--- a/lib/CodeGen/MachineBasicBlock.cpp
+++ b/lib/CodeGen/MachineBasicBlock.cpp
@@ -537,9 +537,7 @@ bool MachineBasicBlock::canFallThrough() {
     // If the block doesn't end in a known control barrier, assume fallthrough
     // is possible. The isPredicated check is needed because this code can be
     // called during IfConversion, where an instruction which is normally a
-    // Barrier is predicated and thus no longer an actual control barrier. This
-    // is over-conservative though, because if an instruction isn't actually
-    // predicated we could still treat it like a barrier.
+    // Barrier is predicated and thus no longer an actual control barrier.
     return empty() || !back().isBarrier() || TII->isPredicated(&back());
   }