7cab0786bd
Start using the Subtarget to make decisions about what's legal. In particular, we only mark floating point operations as legal if we have VFP2, which is something we should've done from the very start. llvm-svn: 295439
62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
//===- ARMLegalizerInfo.cpp --------------------------------------*- C++ -*-==//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
/// \file
|
|
/// This file implements the targeting of the Machinelegalizer class for ARM.
|
|
/// \todo This should be generated by TableGen.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "ARMLegalizerInfo.h"
|
|
#include "ARMSubtarget.h"
|
|
#include "llvm/CodeGen/ValueTypes.h"
|
|
#include "llvm/IR/DerivedTypes.h"
|
|
#include "llvm/IR/Type.h"
|
|
#include "llvm/Target/TargetOpcodes.h"
|
|
|
|
using namespace llvm;
|
|
|
|
#ifndef LLVM_BUILD_GLOBAL_ISEL
|
|
#error "You shouldn't build this"
|
|
#endif
|
|
|
|
ARMLegalizerInfo::ARMLegalizerInfo(const ARMSubtarget &ST) {
|
|
using namespace TargetOpcode;
|
|
|
|
const LLT p0 = LLT::pointer(0, 32);
|
|
|
|
const LLT s1 = LLT::scalar(1);
|
|
const LLT s8 = LLT::scalar(8);
|
|
const LLT s16 = LLT::scalar(16);
|
|
const LLT s32 = LLT::scalar(32);
|
|
const LLT s64 = LLT::scalar(64);
|
|
|
|
setAction({G_FRAME_INDEX, p0}, Legal);
|
|
|
|
for (auto Ty : {s1, s8, s16, s32, p0})
|
|
setAction({G_LOAD, Ty}, Legal);
|
|
setAction({G_LOAD, 1, p0}, Legal);
|
|
|
|
for (auto Ty : {s1, s8, s16, s32})
|
|
setAction({G_ADD, Ty}, Legal);
|
|
|
|
for (unsigned Op : {G_SEXT, G_ZEXT}) {
|
|
setAction({Op, s32}, Legal);
|
|
for (auto Ty : {s1, s8, s16})
|
|
setAction({Op, 1, Ty}, Legal);
|
|
}
|
|
|
|
if (ST.hasVFP2()) {
|
|
setAction({G_FADD, s32}, Legal);
|
|
setAction({G_FADD, s64}, Legal);
|
|
|
|
setAction({G_LOAD, s64}, Legal);
|
|
}
|
|
|
|
computeTables();
|
|
}
|