This patch adds a new NVPTX back-end to LLVM which supports code generation for NVIDIA PTX 3.0. This back-end will (eventually) replace the current PTX back-end, while maintaining compatibility with it.

The new target machines are:

nvptx (old ptx32) => 32-bit PTX
nvptx64 (old ptx64) => 64-bit PTX

The sources are based on the internal NVIDIA NVPTX back-end, and
contain more functionality than the current PTX back-end currently
provides.

NV_CONTRIB

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156196 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 68 insertions, 0 deletions

diff --git a/lib/Target/NVPTX/TargetInfo/CMakeLists.txt b/lib/Target/NVPTX/TargetInfo/CMakeLists.txt
new file mode 100644
index 0000000000..0bf13346d2
--- /dev/null
+++ b/lib/Target/NVPTX/TargetInfo/CMakeLists.txt
@@ -0,0 +1,7 @@
+#include_directories( ${CMAKE_CURRENT_BINARY_DIR}/.. ${CMAKE_CURRENT_SOURCE_DIR}/.. )
+
+add_llvm_library(LLVMNVPTXInfo
+  NVPTXTargetInfo.cpp
+  )
+
+add_dependencies(LLVMNVPTXInfo NVPTXCommonTableGen)
diff --git a/lib/Target/NVPTX/TargetInfo/LLVMBuild.txt b/lib/Target/NVPTX/TargetInfo/LLVMBuild.txt
new file mode 100644
index 0000000000..ef12b0e647
--- /dev/null
+++ b/lib/Target/NVPTX/TargetInfo/LLVMBuild.txt
@@ -0,0 +1,23 @@
+;===- ./lib/Target/NVPTX/TargetInfo/LLVMBuild.txt --------------*- Conf -*--===;
+;
+;                     The LLVM Compiler Infrastructure
+;
+; This file is distributed under the University of Illinois Open Source
+; License. See LICENSE.TXT for details.
+;
+;===------------------------------------------------------------------------===;
+;
+; This is an LLVMBuild description file for the components in this subdirectory.
+;
+; For more information on the LLVMBuild system, please see:
+;
+;   http://llvm.org/docs/LLVMBuild.html
+;
+;===------------------------------------------------------------------------===;
+
+[component_0]
+type = Library
+name = NVPTXInfo
+parent = NVPTX
+required_libraries = MC Support Target
+add_to_library_groups = NVPTX
diff --git a/lib/Target/NVPTX/TargetInfo/Makefile b/lib/Target/NVPTX/TargetInfo/Makefile
new file mode 100644
index 0000000000..8622315b47
--- /dev/null
+++ b/lib/Target/NVPTX/TargetInfo/Makefile
@@ -0,0 +1,15 @@
+##===- lib/Target/NVPTX/TargetInfo/Makefile ----------------*- Makefile -*-===##
+#
+#                     The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+LEVEL = ../../../..
+LIBRARYNAME = LLVMNVPTXInfo
+
+# Hack: we need to include 'main' target directory to grab private headers
+CPPFLAGS = -I$(PROJ_OBJ_DIR)/.. -I$(PROJ_SRC_DIR)/..
+
+include $(LEVEL)/Makefile.common
diff --git a/lib/Target/NVPTX/TargetInfo/NVPTXTargetInfo.cpp b/lib/Target/NVPTX/TargetInfo/NVPTXTargetInfo.cpp
new file mode 100644
index 0000000000..f3624b9f23
--- /dev/null
+++ b/lib/Target/NVPTX/TargetInfo/NVPTXTargetInfo.cpp
@@ -0,0 +1,23 @@
+//===-- NVPTXTargetInfo.cpp - NVPTX Target Implementation -----------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "NVPTX.h"
+#include "llvm/Module.h"
+#include "llvm/Support/TargetRegistry.h"
+using namespace llvm;
+
+Target llvm::TheNVPTXTarget32;
+Target llvm::TheNVPTXTarget64;
+
+extern "C" void LLVMInitializeNVPTXTargetInfo() {
+  RegisterTarget<Triple::nvptx> X(TheNVPTXTarget32, "nvptx",
+    "NVIDIA PTX 32-bit");
+  RegisterTarget<Triple::nvptx64> Y(TheNVPTXTarget64, "nvptx64",
+    "NVIDIA PTX 64-bit");
+}