v8/test/unittests/interpreter/bytecode-utils.h
Mostyn Bramley-Moore b9c9932202 [jumbo] fix B macro/symbol clashes in arm64 builds
assembler-arm64.h and assembler-arm64-inl.h have a B() function
which conflicts with the B macro in bytecode-utils.h.

Headers that leak macros can be annoying to deal with, in this case
we can't simply undef B at the end of source files that include
bytecode-utils.h because the second source file that includes
bytecode-utils.h won't see the B macro.  Let's just move this macro
into the two unittest files that include this header.

Bug: chromium:746958
Change-Id: I588b73fe81615f882a0e010c92ba187d3bc2bf25
Reviewed-on: https://chromium-review.googlesource.com/758779
Commit-Queue: Mostyn Bramley-Moore <mostynb@vewd.com>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49258}
2017-11-09 09:33:45 +00:00

37 lines
1.0 KiB
C

// Copyright 2015 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_UNITTESTS_INTERPRETER_BYTECODE_UTILS_H_
#define V8_UNITTESTS_INTERPRETER_BYTECODE_UTILS_H_
#include "src/frames.h"
#if V8_TARGET_LITTLE_ENDIAN
#define EXTRACT(x, n) static_cast<uint8_t>((x) >> (8 * n))
#define U16(i) EXTRACT(i, 0), EXTRACT(i, 1)
#define U32(i) EXTRACT(i, 0), EXTRACT(i, 1), EXTRACT(i, 2), EXTRACT(i, 3)
#elif V8_TARGET_BIG_ENDIAN
#define EXTRACT(x, n) static_cast<uint8_t>((x) >> (8 * n))
#define U16(i) EXTRACT(i, 1), EXTRACT(i, 0)
#define U32(i) EXTRACT(i, 3), EXTRACT(i, 2), EXTRACT(i, 1), EXTRACT(i, 0)
#else
#error "Unknown Architecture"
#endif
#define U8(i) static_cast<uint8_t>(i)
#define REG_OPERAND(i) \
(InterpreterFrameConstants::kRegisterFileFromFp / kPointerSize - (i))
#define R8(i) static_cast<uint8_t>(REG_OPERAND(i))
#define R16(i) U16(REG_OPERAND(i))
#define R32(i) U32(REG_OPERAND(i))
#endif // V8_UNITTESTS_INTERPRETER_BYTECODE_UTILS_H_