[NFC] Change MemIntrinsicInst::setAlignment() to take an unsigned instead of a Constant

Summary:
 In preparation for https://reviews.llvm.org/D41675 this NFC changes this
prototype of MemIntrinsicInst::setAlignment() to accept an unsigned instead
of a Constant.

llvm-svn: 322403

1 files changed, 2 insertions, 5 deletions

diff --git a/llvm/lib/Transforms/Scalar/SROA.cpp b/llvm/lib/Transforms/Scalar/SROA.cpp
index bfe3754f076..5a543c652b2 100644
--- a/llvm/lib/Transforms/Scalar/SROA.cpp
+++ b/llvm/lib/Transforms/Scalar/SROA.cpp
@@ -2684,8 +2684,7 @@ private:
       assert(!IsSplit);
       assert(NewBeginOffset == BeginOffset);
       II.setDest(getNewAllocaSlicePtr(IRB, OldPtr->getType()));
-      Type *CstTy = II.getAlignmentCst()->getType();
-      II.setAlignment(ConstantInt::get(CstTy, getSliceAlign()));
+      II.setAlignment(getSliceAlign());
 
       deleteIfTriviallyDead(OldPtr);
       return false;
@@ -2807,9 +2806,7 @@ private:
         II.setSource(AdjustedPtr);
 
       if (II.getAlignment() > SliceAlign) {
-        Type *CstTy = II.getAlignmentCst()->getType();
-        II.setAlignment(
-            ConstantInt::get(CstTy, MinAlign(II.getAlignment(), SliceAlign)));
+        II.setAlignment(MinAlign(II.getAlignment(), SliceAlign));
       }
 
       DEBUG(dbgs() << "          to: " << II << "\n");