js/src/jit/IonGenericCallStub.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_IonGenericCallStub_h
   8 #define jit_IonGenericCallStub_h
   9
  10 #include "jit/Registers.h"
  11
  12 namespace js::jit {
  13
  14 #ifndef JS_USE_LINK_REGISTER
  15 static constexpr Register IonGenericCallReturnAddrReg = CallTempReg0;
  16 #endif
  17
  18 static constexpr Register IonGenericCallCalleeReg = CallTempReg1;
  19 static constexpr Register IonGenericCallArgcReg = CallTempReg2;
  20 static constexpr Register IonGenericCallScratch = CallTempReg3;
  21 static constexpr Register IonGenericCallScratch2 = CallTempReg4;
  22 static constexpr Register IonGenericCallScratch3 = CallTempReg5;
  23
  24 #ifdef JS_CODEGEN_ARM
  25 // We need a second scratch register that does not alias `lr` or
  26 // any of the registers the ABI uses to pass arguments.
  27 static_assert(CallTempReg0 == CallTempNonArgRegs[0]);
  28 static constexpr Register IonGenericSecondScratchReg = CallTempReg0;
  29 #endif
  30
  31 }  // namespace js::jit
  32
  33 #endif /* jit_IonGenericCallStub_h */