[Alignment][NFC] Use Align for TargetFrameLowering/Subtarget

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: jholewinski, arsenm, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, nhaehnle, sbc100, jgravelle-google, hiraditya, aheejin, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, jsji, Jim, lenary, s.egerton, pzheng, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68993

llvm-svn: 375084

2 files changed, 4 insertions, 4 deletions

diff --git a/llvm/lib/Target/ARM/ARMSubtarget.cpp b/llvm/lib/Target/ARM/ARMSubtarget.cpp
index 155fbce98a8..09603057b2c 100644
--- a/llvm/lib/Target/ARM/ARMSubtarget.cpp
+++ b/llvm/lib/Target/ARM/ARMSubtarget.cpp
@@ -205,9 +205,9 @@ void ARMSubtarget::initSubtargetFeatures(StringRef CPU, StringRef FS) {
     NoARM = true;
 
   if (isAAPCS_ABI())
-    stackAlignment = 8;
+    stackAlignment = Align(8);
   if (isTargetNaCl() || isAAPCS16_ABI())
-    stackAlignment = 16;
+    stackAlignment = Align(16);
 
   // FIXME: Completely disable sibcall for Thumb1 since ThumbRegisterInfo::
   // emitEpilogue is not ready for them. Thumb tail calls also use t2B, as
diff --git a/llvm/lib/Target/ARM/ARMSubtarget.h b/llvm/lib/Target/ARM/ARMSubtarget.h
index a8b56fb06a7..af6f6914448 100644
--- a/llvm/lib/Target/ARM/ARMSubtarget.h
+++ b/llvm/lib/Target/ARM/ARMSubtarget.h
@@ -449,7 +449,7 @@ protected:
 
   /// stackAlignment - The minimum alignment known to hold of the stack frame on
   /// entry to the function and which must be maintained by every function.
-  unsigned stackAlignment = 4;
+  Align stackAlignment = Align(4);
 
   /// CPUString - String name of used CPU.
   std::string CPUString;
@@ -816,7 +816,7 @@ public:
   /// getStackAlignment - Returns the minimum alignment known to hold of the
   /// stack frame on entry to the function and which must be maintained by every
   /// function for this subtarget.
-  unsigned getStackAlignment() const { return stackAlignment; }
+  Align getStackAlignment() const { return stackAlignment; }
 
   unsigned getMaxInterleaveFactor() const { return MaxInterleaveFactor; }