5a7f47cc02
Reorganize clang::Builtin::Info to have them naturally align on 4 bytes boundaries. Instead of storing builtin headers as a straight char pointer, enumerate them and store the enum. It allows to use a small enum instead of a pointer to reference them. On a 64 bit machine, this brings sizeof(clang::Builtin::Info) from 56 down to 48 bytes. On a release build on my Linux 64 bit machine, it shrinks the size of libclang-cpp.so by 193kB. The impact on performance is negligible in terms of instruction count, but the wall time seems better, see https://llvm-compile-time-tracker.com/compare.php?from=b3d8639f3536a4876b511aca9fb7948ff9266cee&to=a89b56423f98b550260a58c41e64aff9e56b76be&stat=task-clock Differential Revision: https://reviews.llvm.org/D142024
52 lines
2.0 KiB
C++
52 lines
2.0 KiB
C++
//===--- VE.cpp - Implement VE target feature support ---------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements VE TargetInfo objects.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "VE.h"
|
|
#include "clang/Basic/Builtins.h"
|
|
#include "clang/Basic/MacroBuilder.h"
|
|
#include "clang/Basic/TargetBuiltins.h"
|
|
|
|
using namespace clang;
|
|
using namespace clang::targets;
|
|
|
|
static constexpr Builtin::Info BuiltinInfo[] = {
|
|
#define BUILTIN(ID, TYPE, ATTRS) \
|
|
{#ID, TYPE, ATTRS, nullptr, HeaderDesc::NO_HEADER, ALL_LANGUAGES},
|
|
#include "clang/Basic/BuiltinsVE.def"
|
|
};
|
|
|
|
void VETargetInfo::getTargetDefines(const LangOptions &Opts,
|
|
MacroBuilder &Builder) const {
|
|
Builder.defineMacro("_LP64", "1");
|
|
Builder.defineMacro("unix", "1");
|
|
Builder.defineMacro("__unix__", "1");
|
|
Builder.defineMacro("__linux__", "1");
|
|
Builder.defineMacro("__ve", "1");
|
|
Builder.defineMacro("__ve__", "1");
|
|
Builder.defineMacro("__STDC_HOSTED__", "1");
|
|
Builder.defineMacro("__STDC__", "1");
|
|
Builder.defineMacro("__NEC__", "1");
|
|
// FIXME: define __FAST_MATH__ 1 if -ffast-math is enabled
|
|
// FIXME: define __OPTIMIZE__ n if -On is enabled
|
|
// FIXME: define __VECTOR__ n 1 if automatic vectorization is enabled
|
|
|
|
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1");
|
|
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2");
|
|
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4");
|
|
Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8");
|
|
}
|
|
|
|
ArrayRef<Builtin::Info> VETargetInfo::getTargetBuiltins() const {
|
|
return llvm::ArrayRef(BuiltinInfo,
|
|
clang::VE::LastTSBuiltin - Builtin::FirstTSBuiltin);
|
|
}
|