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CMake changes for CRC32 Optimization on PowerPC

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Summary: Closes https://github.com/facebook/rocksdb/pull/2869

Differential Revision: D6791359

Pulled By: ajkr

fbshipit-source-id: fdd38df603d84bbcce8d85dd1729d5caa256e6be
This commit is contained in:
Kamalalochana Subbaiah 2018-01-23 16:44:09 -08:00 committed by Facebook Github Bot
parent 35d8e65a04
commit d6fdd59c63
1 changed files with 24 additions and 1 deletions
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23
CMakeLists.txt
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@ -34,6 +34,9 @@
cmake_minimum_required(VERSION 2.8.12)
project(rocksdb)
enable_language(CXX)
enable_language(C)
enable_language(ASM)
if(POLICY CMP0042)
cmake_policy(SET CMP0042 NEW)
@ -177,6 +180,18 @@ else()
endif()
endif()
include(CheckCCompilerFlag)
if(CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64le")
CHECK_C_COMPILER_FLAG("-maltivec" HAS_ALTIVEC)
if(HAS_ALTIVEC)
message(STATUS " HAS_ALTIVEC yes")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -maltivec")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -maltivec")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mcpu=power8")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mcpu=power8")
endif(HAS_ALTIVEC)
endif(CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64le")
option(PORTABLE "build a portable binary" OFF)
option(FORCE_SSE42 "force building with SSE4.2, even when PORTABLE=ON" OFF)
if(PORTABLE)
@ -189,9 +204,11 @@ else()
if(MSVC)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /arch:AVX2")
else()
if(NOT HAVE_POWER8)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native")
endif()
endif()
endif()
include(CheckCXXSourceCompiles)
if(NOT MSVC)
@ -625,6 +642,12 @@ set_source_files_properties(
endif()
endif()
if(HAVE_POWER8)
list(APPEND SOURCES
util/crc32c_ppc.c
util/crc32c_ppc_asm.S)
endif(HAVE_POWER8)
if(WIN32)
list(APPEND SOURCES
port/win/io_win.cc