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 namespace js {
  11 namespace jit {
  12
  13 void CompilerFrameInfo::pop(StackAdjustment adjust) {
  14   spIndex--;
  15   StackValue* popped = &stack[spIndex];
  16
  17   if (adjust == AdjustStack && popped->kind() == StackValue::Stack) {
  18     masm.addToStackPtr(Imm32(sizeof(Value)));
  19   }
  20   // Assert when anything uses this value.
  21   popped->reset();
  22 }
  23
  24 void CompilerFrameInfo::popn(uint32_t n, StackAdjustment adjust) {
  25   uint32_t poppedStack = 0;
  26   for (uint32_t i = 0; i < n; i++) {
  27     if (peek(-1)->kind() == StackValue::Stack) {
  28       poppedStack++;
  29     }
  30     pop(DontAdjustStack);
  31   }
  32   if (adjust == AdjustStack && poppedStack > 0) {
  33     masm.addToStackPtr(Imm32(sizeof(Value) * poppedStack));
  34   }
  35 }
  36
  37 }  // namespace jit
  38 }  // namespace js
  39
  40 #endif /* jit_BaselineFrameInfo_inl_h */