ARM64: Slightly improve MacroAssembler::Allocate.

src/arm64/macro-assembler-arm64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1519 matching lines @@
     FrameScope scope(this, StackFrame::NONE);
     CallRuntime(Runtime::kHiddenThrowMessage, 1);
   } else {
     CallRuntime(Runtime::kHiddenThrowMessage, 1);
   }
   // ThrowMessage should not return here.
   Unreachable();
 }
 
 
-void MacroAssembler::ThrowIf(Condition cc, BailoutReason reason) {
+void MacroAssembler::ThrowIf(Condition cond, BailoutReason reason) {
   Label ok;
-  B(InvertCondition(cc), &ok);
+  B(InvertCondition(cond), &ok);
   Throw(reason);
   Bind(&ok);
 }
 
 
 void MacroAssembler::ThrowIfSmi(const Register& value, BailoutReason reason) {
   Label ok;
   JumpIfNotSmi(value, &ok);
   Throw(reason);
   Bind(&ok);
@@ skipping 1749 matching lines @@
     // Load the allocation limit. 'result' already contains the allocation top.
     Ldr(allocation_limit, MemOperand(top_address, limit - top));
   }
 
   // We can ignore DOUBLE_ALIGNMENT flags here because doubles and pointers have
   // the same alignment on ARM64.
   STATIC_ASSERT(kPointerAlignment == kDoubleAlignment);
 
   // Calculate new top and bail out if new space is exhausted.
   Adds(scratch3, result, object_size);
-  B(vs, gc_required);
-  Cmp(scratch3, allocation_limit);
+  Ccmp(scratch3, allocation_limit, CFlag, cc);
   B(hi, gc_required);
   Str(scratch3, MemOperand(top_address));
 
   // Tag the object if requested.
   if ((flags & TAG_OBJECT) != 0) {
     ObjectTag(result, result);
   }
 }
 
 
@@ skipping 60 matching lines @@
     Adds(scratch3, result, Operand(object_size, LSL, kPointerSizeLog2));
   } else {
     Adds(scratch3, result, object_size);
   }
 
   if (emit_debug_code()) {
     Tst(scratch3, kObjectAlignmentMask);
     Check(eq, kUnalignedAllocationInNewSpace);
   }
 
-  B(vs, gc_required);
-  Cmp(scratch3, allocation_limit);
+  Ccmp(scratch3, allocation_limit, CFlag, cc);
   B(hi, gc_required);
   Str(scratch3, MemOperand(top_address));
 
   // Tag the object if requested.
   if ((flags & TAG_OBJECT) != 0) {
     ObjectTag(result, result);
   }
 }
 
 
@@ skipping 1835 matching lines @@
   }
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM64