mirror of
https://github.com/RPCSX/llvm.git
synced 2024-12-02 16:56:50 +00:00
c2ebfd454c
This speeds up selected test cases with up to 5% - no slowdowns observed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120286 91177308-0d34-0410-b5e6-96231b3b80d8
58 lines
2.0 KiB
C++
58 lines
2.0 KiB
C++
//===- SPUSubtarget.cpp - STI Cell SPU Subtarget Information --------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements the CellSPU-specific subclass of TargetSubtarget.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "SPUSubtarget.h"
|
|
#include "SPU.h"
|
|
#include "SPUGenSubtarget.inc"
|
|
#include "llvm/ADT/SmallVector.h"
|
|
#include "SPURegisterInfo.h"
|
|
|
|
using namespace llvm;
|
|
|
|
SPUSubtarget::SPUSubtarget(const std::string &TT, const std::string &FS) :
|
|
StackAlignment(16),
|
|
ProcDirective(SPU::DEFAULT_PROC),
|
|
UseLargeMem(false)
|
|
{
|
|
// Should be the target SPU processor type. For now, since there's only
|
|
// one, simply default to the current "v0" default:
|
|
std::string default_cpu("v0");
|
|
|
|
// Parse features string.
|
|
ParseSubtargetFeatures(FS, default_cpu);
|
|
}
|
|
|
|
/// SetJITMode - This is called to inform the subtarget info that we are
|
|
/// producing code for the JIT.
|
|
void SPUSubtarget::SetJITMode() {
|
|
}
|
|
|
|
/// Enable PostRA scheduling for optimization levels -O2 and -O3.
|
|
bool SPUSubtarget::enablePostRAScheduler(
|
|
CodeGenOpt::Level OptLevel,
|
|
TargetSubtarget::AntiDepBreakMode& Mode,
|
|
RegClassVector& CriticalPathRCs) const {
|
|
Mode = TargetSubtarget::ANTIDEP_CRITICAL;
|
|
// CriticalPathsRCs seems to be the set of
|
|
// RegisterClasses that antidep breakings are performed for.
|
|
// Do it for all register classes
|
|
CriticalPathRCs.clear();
|
|
CriticalPathRCs.push_back(&SPU::R8CRegClass);
|
|
CriticalPathRCs.push_back(&SPU::R16CRegClass);
|
|
CriticalPathRCs.push_back(&SPU::R32CRegClass);
|
|
CriticalPathRCs.push_back(&SPU::R32FPRegClass);
|
|
CriticalPathRCs.push_back(&SPU::R64CRegClass);
|
|
CriticalPathRCs.push_back(&SPU::VECREGRegClass);
|
|
return OptLevel >= CodeGenOpt::Default;
|
|
}
|