Difference between revisions of "NaplesPU Tools"
From NaplesPU Documentation
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==== CMakeLists.txt ==== | ==== CMakeLists.txt ==== | ||
| − | <syntaxhighlight lang=" | + | <syntaxhighlight lang="cpp" line='line'> |
if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT) | if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT) | ||
set(CMAKE_INSTALL_PREFIX "/usr/local/llvm-nuplus/" CACHE PATH "NuPlusLLVM install prefix" FORCE) | set(CMAKE_INSTALL_PREFIX "/usr/local/llvm-nuplus/" CACHE PATH "NuPlusLLVM install prefix" FORCE) | ||
| Line 10: | Line 10: | ||
This specifies the installation path that, in our case, is: "/usr/local/llvm-nuplus/". | This specifies the installation path that, in our case, is: "/usr/local/llvm-nuplus/". | ||
| − | <syntaxhighlight lang=" | + | <syntaxhighlight lang="cpp" line='line'> |
set(LLVM_ALL_TARGETS | set(LLVM_ALL_TARGETS | ||
AArch64 | AArch64 | ||
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The target name should be added to the LLVM_ALL_TARGETS list. | The target name should be added to the LLVM_ALL_TARGETS list. | ||
| − | <syntaxhighlight lang=" | + | <syntaxhighlight lang="cpp" line='line'> |
set(LLVM_TARGETS_TO_BUILD "NuPlus" CACHE STRING "Semicolon-separated list of targets to build, or \"all\".") | set(LLVM_TARGETS_TO_BUILD "NuPlus" CACHE STRING "Semicolon-separated list of targets to build, or \"all\".") | ||
</syntaxhighlight> | </syntaxhighlight> | ||
In a standard version of llvm, the LLVM_TARGETS_TO_BUILD variable is set to "all" in order to compile llvm with all the provided target backends. In out custom compiler, we set this variable to "NuPlus". In this way the compiler is built just targeting the NuPlus architecture. | In a standard version of llvm, the LLVM_TARGETS_TO_BUILD variable is set to "all" in order to compile llvm with all the provided target backends. In out custom compiler, we set this variable to "NuPlus". In this way the compiler is built just targeting the NuPlus architecture. | ||
| − | <syntaxhighlight lang=" | + | <syntaxhighlight lang="cpp" line='line'> |
set(LLVM_DEFAULT_TARGET_TRIPLE "nuplus-none-none" CACHE STRING "Default target for which LLVM will generate code." ) | set(LLVM_DEFAULT_TARGET_TRIPLE "nuplus-none-none" CACHE STRING "Default target for which LLVM will generate code." ) | ||
</syntaxhighlight> | </syntaxhighlight> | ||
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==== cmake/config-ix.cmake ==== | ==== cmake/config-ix.cmake ==== | ||
| − | <syntaxhighlight lang=" | + | <syntaxhighlight lang="cpp" line='line'> |
if (LLVM_NATIVE_ARCH MATCHES "i[2-6]86") | if (LLVM_NATIVE_ARCH MATCHES "i[2-6]86") | ||
set(LLVM_NATIVE_ARCH X86) | set(LLVM_NATIVE_ARCH X86) | ||
| Line 50: | Line 50: | ||
==== include/llvm/ADT/Triple.h ==== | ==== include/llvm/ADT/Triple.h ==== | ||
| − | <syntaxhighlight lang=" | + | <syntaxhighlight lang="cpp" line='line'> |
enum ArchType { | enum ArchType { | ||
UnknownArch, | UnknownArch, | ||
| Line 59: | Line 59: | ||
We add NuPlus to the ArchType list. | We add NuPlus to the ArchType list. | ||
| − | ==== include/llvm/ | + | ==== include/llvm/IR/Intrinsics.td ==== |
| − | <syntaxhighlight lang=" | + | <syntaxhighlight lang="cpp" line='line'> |
| − | + | include "llvm/IR/IntrinsicsNuPlus.td" | |
| − | |||
| − | |||
| − | |||
| − | |||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | + | In order to use target-specific intrinsics, we include the path to IntrinsicsNuPlus.td, i.e. the file containing the NuPlus intrinsics. | |
Revision as of 17:17, 12 September 2017
A new backend for llvm needs to be added and registered. After registration, llvm tools are able to lookup and use the new target at runtime. In the following, we will show which files are involved in the registration phase and which changes are required.
Contents
CMakeLists.txt
if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
set(CMAKE_INSTALL_PREFIX "/usr/local/llvm-nuplus/" CACHE PATH "NuPlusLLVM install prefix" FORCE)
endif()This specifies the installation path that, in our case, is: "/usr/local/llvm-nuplus/".
set(LLVM_ALL_TARGETS
AArch64
AMDGPU
ARM
BPF
Hexagon
Mips
MSP430
NVPTX
PowerPC
Sparc
SystemZ
X86
XCore
NuPlus
)The target name should be added to the LLVM_ALL_TARGETS list.
set(LLVM_TARGETS_TO_BUILD "NuPlus" CACHE STRING "Semicolon-separated list of targets to build, or \"all\".")In a standard version of llvm, the LLVM_TARGETS_TO_BUILD variable is set to "all" in order to compile llvm with all the provided target backends. In out custom compiler, we set this variable to "NuPlus". In this way the compiler is built just targeting the NuPlus architecture.
set(LLVM_DEFAULT_TARGET_TRIPLE "nuplus-none-none" CACHE STRING "Default target for which LLVM will generate code." )Finally, we remove the possibility of targeting a different architecture then NuPlus.
cmake/config-ix.cmake
if (LLVM_NATIVE_ARCH MATCHES "i[2-6]86")
set(LLVM_NATIVE_ARCH X86)
...
elseif (LLVM_NATIVE_ARCH MATCHES "nuplus")
set(LLVM_NATIVE_ARCH NuPlus)include/llvm/ADT/Triple.h
enum ArchType {
UnknownArch,
arm, // ARM (little endian): arm, armv.*, xscale
...
nuplus, // NuPlusWe add NuPlus to the ArchType list.
include/llvm/IR/Intrinsics.td
include "llvm/IR/IntrinsicsNuPlus.td"In order to use target-specific intrinsics, we include the path to IntrinsicsNuPlus.td, i.e. the file containing the NuPlus intrinsics.
