[Alignment][NFC] Migrate HandleByVal to Align

Summary: Note to downstream target maintainers: this might silently change the semantics of your code if you override `TargetLowering::HandleByVal` without marking it `override`.

This 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: sdardis, hiraditya, jrtc27, atanasyan, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D81365

1 files changed, 2 insertions, 4 deletions

diff --git a/llvm/lib/CodeGen/CallingConvLower.cpp b/llvm/lib/CodeGen/CallingConvLower.cpp
index bc7fa21b8020..366cd985ecf3 100644
--- a/llvm/lib/CodeGen/CallingConvLower.cpp
+++ b/llvm/lib/CodeGen/CallingConvLower.cpp
@@ -42,8 +42,7 @@ CCState::CCState(CallingConv::ID CC, bool isVarArg, MachineFunction &mf,
 /// its parameter attribute.
 void CCState::HandleByVal(unsigned ValNo, MVT ValVT, MVT LocVT,
                           CCValAssign::LocInfo LocInfo, int MinSize,
-                          int MinAlignment, ISD::ArgFlagsTy ArgFlags) {
-  Align MinAlign(MinAlignment);
+                          Align MinAlign, ISD::ArgFlagsTy ArgFlags) {
   Align Alignment = ArgFlags.getNonZeroByValAlign();
   unsigned Size  = ArgFlags.getByValSize();
   if (MinSize > (int)Size)
@@ -51,8 +50,7 @@ void CCState::HandleByVal(unsigned ValNo, MVT ValVT, MVT LocVT,
   if (MinAlign > Alignment)
     Alignment = MinAlign;
   ensureMaxAlignment(Alignment);
-  MF.getSubtarget().getTargetLowering()->HandleByVal(this, Size,
-                                                     Alignment.value());
+  MF.getSubtarget().getTargetLowering()->HandleByVal(this, Size, Alignment);
   Size = unsigned(alignTo(Size, MinAlign));
   unsigned Offset = AllocateStack(Size, Alignment.value());
   addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo));