Add R600 backend
A new backend supporting AMD GPUs: Radeon HD2XXX - HD7XXX
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169915 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/R600/AMDIL7XXDevice.cpp b/lib/Target/R600/AMDIL7XXDevice.cpp
new file mode 100644
index 0000000..ea6ac34
--- /dev/null
+++ b/lib/Target/R600/AMDIL7XXDevice.cpp
@@ -0,0 +1,115 @@
+//===-- AMDIL7XXDevice.cpp - Device Info for 7XX GPUs ---------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+// \file
+//==-----------------------------------------------------------------------===//
+#include "AMDIL7XXDevice.h"
+#include "AMDGPUSubtarget.h"
+#include "AMDILDevice.h"
+
+using namespace llvm;
+
+AMDGPU7XXDevice::AMDGPU7XXDevice(AMDGPUSubtarget *ST) : AMDGPUDevice(ST) {
+ setCaps();
+ std::string name = mSTM->getDeviceName();
+ if (name == "rv710") {
+ DeviceFlag = OCL_DEVICE_RV710;
+ } else if (name == "rv730") {
+ DeviceFlag = OCL_DEVICE_RV730;
+ } else {
+ DeviceFlag = OCL_DEVICE_RV770;
+ }
+}
+
+AMDGPU7XXDevice::~AMDGPU7XXDevice() {
+}
+
+void AMDGPU7XXDevice::setCaps() {
+ mSWBits.set(AMDGPUDeviceInfo::LocalMem);
+}
+
+size_t AMDGPU7XXDevice::getMaxLDSSize() const {
+ if (usesHardware(AMDGPUDeviceInfo::LocalMem)) {
+ return MAX_LDS_SIZE_700;
+ }
+ return 0;
+}
+
+size_t AMDGPU7XXDevice::getWavefrontSize() const {
+ return AMDGPUDevice::HalfWavefrontSize;
+}
+
+uint32_t AMDGPU7XXDevice::getGeneration() const {
+ return AMDGPUDeviceInfo::HD4XXX;
+}
+
+uint32_t AMDGPU7XXDevice::getResourceID(uint32_t DeviceID) const {
+ switch (DeviceID) {
+ default:
+ assert(0 && "ID type passed in is unknown!");
+ break;
+ case GLOBAL_ID:
+ case CONSTANT_ID:
+ case RAW_UAV_ID:
+ case ARENA_UAV_ID:
+ break;
+ case LDS_ID:
+ if (usesHardware(AMDGPUDeviceInfo::LocalMem)) {
+ return DEFAULT_LDS_ID;
+ }
+ break;
+ case SCRATCH_ID:
+ if (usesHardware(AMDGPUDeviceInfo::PrivateMem)) {
+ return DEFAULT_SCRATCH_ID;
+ }
+ break;
+ case GDS_ID:
+ assert(0 && "GDS UAV ID is not supported on this chip");
+ if (usesHardware(AMDGPUDeviceInfo::RegionMem)) {
+ return DEFAULT_GDS_ID;
+ }
+ break;
+ };
+
+ return 0;
+}
+
+uint32_t AMDGPU7XXDevice::getMaxNumUAVs() const {
+ return 1;
+}
+
+AMDGPU770Device::AMDGPU770Device(AMDGPUSubtarget *ST): AMDGPU7XXDevice(ST) {
+ setCaps();
+}
+
+AMDGPU770Device::~AMDGPU770Device() {
+}
+
+void AMDGPU770Device::setCaps() {
+ if (mSTM->isOverride(AMDGPUDeviceInfo::DoubleOps)) {
+ mSWBits.set(AMDGPUDeviceInfo::FMA);
+ mHWBits.set(AMDGPUDeviceInfo::DoubleOps);
+ }
+ mSWBits.set(AMDGPUDeviceInfo::BarrierDetect);
+ mHWBits.reset(AMDGPUDeviceInfo::LongOps);
+ mSWBits.set(AMDGPUDeviceInfo::LongOps);
+ mSWBits.set(AMDGPUDeviceInfo::LocalMem);
+}
+
+size_t AMDGPU770Device::getWavefrontSize() const {
+ return AMDGPUDevice::WavefrontSize;
+}
+
+AMDGPU710Device::AMDGPU710Device(AMDGPUSubtarget *ST) : AMDGPU7XXDevice(ST) {
+}
+
+AMDGPU710Device::~AMDGPU710Device() {
+}
+
+size_t AMDGPU710Device::getWavefrontSize() const {
+ return AMDGPUDevice::QuarterWavefrontSize;
+}