Disable most IR-level transform passes on functions marked 'optnone'.

[oota-llvm.git] / lib / Transforms / Scalar / LoopDeletion.cpp

diff --git a/lib/Transforms/Scalar/LoopDeletion.cpp b/lib/Transforms/Scalar/LoopDeletion.cpp
index cae1253a959b708f30eb41ebb46e99f3192f0649..b0155458a42f9696728a50af2051b103580efa44 100644 (file)
--- a/lib/Transforms/Scalar/LoopDeletion.cpp
+++ b/lib/Transforms/Scalar/LoopDeletion.cpp
@@ -130,6 +130,9 @@ bool LoopDeletion::isLoopDead(Loop *L,
 /// NOTE: This entire process relies pretty heavily on LoopSimplify and LCSSA
 /// in order to make various safety checks work.
 bool LoopDeletion::runOnLoop(Loop *L, LPPassManager &LPM) {
+  if (skipOptnoneFunction(L))
+    return false;
+
   // We can only remove the loop if there is a preheader that we can
   // branch from after removing it.
   BasicBlock *preheader = L->getLoopPreheader();