[cleanup] Remove redundant ROUND_UP macro

Replace all uses by the existing RoundUp function.

R=ulan@chromium.org

Bug: v8:7570
Change-Id: I7ff5e76ebea7b429ff4e4f3a8157ee831e7891ae
Reviewed-on: https://chromium-review.googlesource.com/1004898Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52525}

src/globals.h

@@ -274,10 +274,6 @@ constexpr int kUC16Size = sizeof(uc16);  // NOLINT
 // 128 bit SIMD value size.
 constexpr int kSimd128Size = 16;
 
-// Round up n to be a multiple of sz, where sz is a power of 2.
-#define ROUND_UP(n, sz) (((n) + ((sz) - 1)) & ~((sz) - 1))
-
-
 // FUNCTION_ADDR(f) gets the address of a C function f.
 #define FUNCTION_ADDR(f)                                        \
   (reinterpret_cast<v8::internal::Address>(reinterpret_cast<intptr_t>(f)))

src/heap/heap.cc

@@ -4009,7 +4009,7 @@ bool Heap::ConfigureHeap(size_t max_semi_space_size_in_kb,
   // Overwrite default configuration.
   if (max_semi_space_size_in_kb != 0) {
     max_semi_space_size_ =
-        ROUND_UP(max_semi_space_size_in_kb * KB, Page::kPageSize);
+        RoundUp<Page::kPageSize>(max_semi_space_size_in_kb * KB);
   }
   if (max_old_generation_size_in_mb != 0) {
     max_old_generation_size_ = max_old_generation_size_in_mb * MB;
@@ -4025,9 +4025,9 @@ bool Heap::ConfigureHeap(size_t max_semi_space_size_in_kb,
   }
 
   if (Page::kPageSize > MB) {
-    max_semi_space_size_ = ROUND_UP(max_semi_space_size_, Page::kPageSize);
+    max_semi_space_size_ = RoundUp<Page::kPageSize>(max_semi_space_size_);
     max_old_generation_size_ =
-        ROUND_UP(max_old_generation_size_, Page::kPageSize);
+        RoundUp<Page::kPageSize>(max_old_generation_size_);
   }
 
   if (FLAG_stress_compaction) {
@@ -4059,7 +4059,7 @@ bool Heap::ConfigureHeap(size_t max_semi_space_size_in_kb,
       }
     } else {
       initial_semispace_size_ =
-          ROUND_UP(initial_semispace_size, Page::kPageSize);
+          RoundUp<Page::kPageSize>(initial_semispace_size);
     }
   }