[Alignment][NFC] Remove LogAlignment functions

Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790

Reviewers: courbet

Subscribers: arsenm, sdardis, nemanjai, jvesely, nhaehnle, hiraditya, kbarton, jrtc27, MaskRay, atanasyan, jsji, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D67620

llvm-svn: 372231

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
index 6607b1a4c66..e459a3a4e0d 100644
--- a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -10714,7 +10714,7 @@ llvm::Align SITargetLowering::getPrefLoopAlignment(MachineLoop *ML) const {
     // If inner loop block is aligned assume in average half of the alignment
     // size to be added as nops.
     if (MBB != Header)
-      LoopSize += (1 << MBB->getLogAlignment()) / 2;
+      LoopSize += MBB->getAlignment().value() / 2;
 
     for (const MachineInstr &MI : *MBB) {
       LoopSize += TII->getInstSizeInBytes(MI);