js/src/jit/BaselineFrameInfo-inl.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * vim: set ts=8 sts=2 et sw=2 tw=80:
   3  * This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef jit_BaselineFrameInfo_inl_h
   8 #define jit_BaselineFrameInfo_inl_h
   9
  10 #include "jit/BaselineFrameInfo.h"
  11
  12 #include "jit/MacroAssembler-inl.h"
  13
  14 namespace js {
  15 namespace jit {
  16
  17 void CompilerFrameInfo::pop(StackAdjustment adjust) {
  18   spIndex--;
  19   StackValue* popped = &stack[spIndex];
  20
  21   if (adjust == AdjustStack && popped->kind() == StackValue::Stack) {
  22     masm.addToStackPtr(Imm32(sizeof(Value)));
  23   }
  24   // Assert when anything uses this value.
  25   popped->reset();
  26 }
  27
  28 void CompilerFrameInfo::popn(uint32_t n, StackAdjustment adjust) {
  29   uint32_t poppedStack = 0;
  30   for (uint32_t i = 0; i < n; i++) {
  31     if (peek(-1)->kind() == StackValue::Stack) {
  32       poppedStack++;
  33     }
  34     pop(DontAdjustStack);
  35   }
  36   if (adjust == AdjustStack && poppedStack > 0) {
  37     masm.addToStackPtr(Imm32(sizeof(Value) * poppedStack));
  38   }
  39 }
  40
  41 void InterpreterFrameInfo::pop() { popn(1); }
  42
  43 void InterpreterFrameInfo::popn(uint32_t n) {
  44   masm.addToStackPtr(Imm32(n * sizeof(Value)));
  45 }
  46
  47 }  // namespace jit
  48 }  // namespace js
  49
  50 #endif /* jit_BaselineFrameInfo_inl_h */