If dom tree information is available, make it possible to pass

it to get better phi node simplification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119055 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 2 insertions, 2 deletions

diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp
index db3cd80364..732f6c823c 100644
--- a/lib/Transforms/Scalar/GVN.cpp
+++ b/lib/Transforms/Scalar/GVN.cpp
@@ -1903,7 +1903,7 @@ bool GVN::processInstruction(Instruction *I,
   // to value numbering it.  Value numbering often exposes redundancies, for
   // example if it determines that %y is equal to %x then the instruction
   // "%z = and i32 %x, %y" becomes "%z = and i32 %x, %x" which we now simplify.
-  if (Value *V = SimplifyInstruction(I, TD)) {
+  if (Value *V = SimplifyInstruction(I, TD, DT)) {
     I->replaceAllUsesWith(V);
     if (MD && V->getType()->isPointerTy())
       MD->invalidateCachedPointerInfo(V);
diff --git a/lib/Transforms/Scalar/LoopUnswitch.cpp b/lib/Transforms/Scalar/LoopUnswitch.cpp
index eb05f995c7..009ee7b95e 100644
--- a/lib/Transforms/Scalar/LoopUnswitch.cpp
+++ b/lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -994,7 +994,7 @@ void LoopUnswitch::SimplifyCode(std::vector<Instruction*> &Worklist, Loop *L) {
     // See if instruction simplification can hack this up.  This is common for
     // things like "select false, X, Y" after unswitching made the condition be
     // 'false'.
-    if (Value *V = SimplifyInstruction(I)) {
+    if (Value *V = SimplifyInstruction(I, 0, DT)) {
       ReplaceUsesOfWith(I, V, Worklist, L, LPM);
       continue;
     }