Tidy some LSR debug output: announce the loop it's about to process

before it does any processing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66443 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index c88bf230ad39e3e482acecd4c7bd75b077f06927..a059580172f7cc7bbfa7036fc83c9370c8452041 100644 (file)
--- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -2606,6 +2606,12 @@ bool LoopStrengthReduce::runOnLoop(Loop *L, LPPassManager &LPM) {
     AddUsersIfInteresting(I, L, Processed);
 
   if (!IVUsesByStride.empty()) {
+#ifndef NDEBUG
+    DOUT << "\nLSR on \"" << L->getHeader()->getParent()->getNameStart()
+         << "\" ";
+    DEBUG(L->dump());
+#endif
+
     // Optimize induction variables.  Some indvar uses can be transformed to use
     // strides that will be needed for other purposes.  A common example of this
     // is the exit test for the loop, which can often be rewritten to use the
@@ -2625,12 +2631,6 @@ bool LoopStrengthReduce::runOnLoop(Loop *L, LPPassManager &LPM) {
     // things.
     bool HasOneStride = IVUsesByStride.size() == 1;
 
-#ifndef NDEBUG
-    DOUT << "\nLSR on \"" << L->getHeader()->getParent()->getNameStart()
-         << "\" ";
-    DEBUG(L->dump());
-#endif
-
     // IVsByStride keeps IVs for one particular loop.
     assert(IVsByStride.empty() && "Stale entries in IVsByStride?");