[turbofan] Frame elision for code stubs

src/globals.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_GLOBALS_H_
 #define V8_GLOBALS_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 113 matching lines @@
 const int kIntptrSize    = sizeof(intptr_t);  // NOLINT
 const int kPointerSize   = sizeof(void*);     // NOLINT
 #if V8_TARGET_ARCH_X64 && V8_TARGET_ARCH_32_BIT
 const int kRegisterSize  = kPointerSize + kPointerSize;
 #else
 const int kRegisterSize  = kPointerSize;
 #endif
 const int kPCOnStackSize = kRegisterSize;
 const int kFPOnStackSize = kRegisterSize;
 
+#if V8_TARGET_ARCH_X64 || V8_TARGET_ARCH_IA32
+const int kElidedFrameSlots = kPCOnStackSize / kPointerSize;
+#else
+const int kElidedFrameSlots = 0;
+#endif
+
 const int kDoubleSizeLog2 = 3;
 
 #if V8_HOST_ARCH_64_BIT
 const int kPointerSizeLog2 = 3;
 const intptr_t kIntptrSignBit = V8_INT64_C(0x8000000000000000);
 const uintptr_t kUintptrAllBitsSet = V8_UINT64_C(0xFFFFFFFFFFFFFFFF);
 const bool kRequiresCodeRange = true;
 #if V8_TARGET_ARCH_MIPS64
 // To use pseudo-relative jumps such as j/jal instructions which have 28-bit
 // encoded immediate, the addresses have to be in range of 256MB aligned
@@ skipping 882 matching lines @@
   return static_cast<uint32_t>(bit_cast<uintptr_t>(address) >>
                                kPointerSizeLog2);
 }
 
 }  // namespace internal
 }  // namespace v8
 
 namespace i = v8::internal;
 
 #endif  // V8_GLOBALS_H_