[PATCH] MdeModulePkg/Core: fix an IA32 build failure

[Jian J Wang <jian.j.wang@intel.com>]

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1277

The failure is caused by data type conversion between UINTN and UINT64,
which is checked in at 63ebde8ef6d4ff497d054ccc010904ecd4441198.

Cc: Star Zeng <star.zeng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
---
 MdeModulePkg/Core/Dxe/Mem/HeapGuard.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/MdeModulePkg/Core/Dxe/Mem/HeapGuard.c b/MdeModulePkg/Core/Dxe/Mem/HeapGuard.c
index 449a022658..521e0d7b2a 100644
--- a/MdeModulePkg/Core/Dxe/Mem/HeapGuard.c
+++ b/MdeModulePkg/Core/Dxe/Mem/HeapGuard.c
@@ -463,7 +463,7 @@ IsGuardPage (
   IN EFI_PHYSICAL_ADDRESS    Address
   )
 {
-  UINTN       BitMap;
+  UINT64        BitMap;
 
   //
   // There must be at least one guarded page before and/or after given
@@ -1368,7 +1368,7 @@ GuardAllFreedPages (
   UINT64    Address;
   UINT64    GuardPage;
   INTN      Level;
-  UINTN     BitIndex;
+  UINT64    BitIndex;
   UINTN     GuardPageNumber;
 
   if (mGuardedMemoryMap == 0 ||
@@ -1475,12 +1475,12 @@ MergeGuardPages (
   }
 
   Bitmap = 0;
-  Pages  = EFI_SIZE_TO_PAGES (MaxAddress - MemoryMapEntry->PhysicalStart);
-  Pages -= MemoryMapEntry->NumberOfPages;
+  Pages  = EFI_SIZE_TO_PAGES ((UINTN)(MaxAddress - MemoryMapEntry->PhysicalStart));
+  Pages -= (INTN)MemoryMapEntry->NumberOfPages;
   while (Pages > 0) {
     if (Bitmap == 0) {
       EndAddress = MemoryMapEntry->PhysicalStart +
-                   EFI_PAGES_TO_SIZE (MemoryMapEntry->NumberOfPages);
+                   EFI_PAGES_TO_SIZE ((UINTN)MemoryMapEntry->NumberOfPages);
       Bitmap = GetGuardedMemoryBits (EndAddress, GUARDED_HEAP_MAP_ENTRY_BITS);
     }
 
-- 
2.19.0.windows.1