mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-22 20:43:44 +02:00
e74d86edda
Sign-extension opcodes have been split into a separate proposal from the main threads proposal, so switch them to their own target feature. See: https://github.com/WebAssembly/sign-extension-ops llvm-svn: 322966
57 lines
2.0 KiB
C++
57 lines
2.0 KiB
C++
//===-- WebAssemblySubtarget.cpp - WebAssembly Subtarget Information ------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
///
|
|
/// \file
|
|
/// \brief This file implements the WebAssembly-specific subclass of
|
|
/// TargetSubtarget.
|
|
///
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "WebAssemblySubtarget.h"
|
|
#include "MCTargetDesc/WebAssemblyMCTargetDesc.h"
|
|
#include "WebAssemblyInstrInfo.h"
|
|
#include "llvm/Support/TargetRegistry.h"
|
|
using namespace llvm;
|
|
|
|
#define DEBUG_TYPE "wasm-subtarget"
|
|
|
|
#define GET_SUBTARGETINFO_CTOR
|
|
#define GET_SUBTARGETINFO_TARGET_DESC
|
|
#include "WebAssemblyGenSubtargetInfo.inc"
|
|
|
|
WebAssemblySubtarget &
|
|
WebAssemblySubtarget::initializeSubtargetDependencies(StringRef FS) {
|
|
// Determine default and user-specified characteristics
|
|
|
|
if (CPUString.empty())
|
|
CPUString = "generic";
|
|
|
|
ParseSubtargetFeatures(CPUString, FS);
|
|
return *this;
|
|
}
|
|
|
|
WebAssemblySubtarget::WebAssemblySubtarget(const Triple &TT,
|
|
const std::string &CPU,
|
|
const std::string &FS,
|
|
const TargetMachine &TM)
|
|
: WebAssemblyGenSubtargetInfo(TT, CPU, FS), HasSIMD128(false),
|
|
HasAtomics(false), HasNontrappingFPToInt(false), HasSignExt(false),
|
|
CPUString(CPU), TargetTriple(TT), FrameLowering(),
|
|
InstrInfo(initializeSubtargetDependencies(FS)), TSInfo(),
|
|
TLInfo(TM, *this) {}
|
|
|
|
bool WebAssemblySubtarget::enableMachineScheduler() const {
|
|
// Disable the MachineScheduler for now. Even with ShouldTrackPressure set and
|
|
// enableMachineSchedDefaultSched overridden, it appears to have an overall
|
|
// negative effect for the kinds of register optimizations we're doing.
|
|
return false;
|
|
}
|
|
|
|
bool WebAssemblySubtarget::useAA() const { return true; }
|