##
## This file is in charge of setting our paranoid flags with regard to warnings and optimization.
##
-## It is only used for gcc and clang. MSVC builds don't load this file.
+## It is only used for gcc, clang and Intel compilers.
##
## These flags do break some classical CMake tests, so you don't
## want to do so before the very end of the configuration.
# Activate the warnings on #if FOOBAR when FOOBAR has no value
# It breaks on FreeBSD within Boost headers, so activate this only in Pure Hardcore debug mode.
-if(enable_maintainer_mode)
+ if(enable_maintainer_mode)
set(warnCFLAGS "${warnCFLAGS} -Wundef")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wundef")
endif()
-# Se the optimisation flags
+# Set the optimisation flags
# NOTE, we should CMAKE_BUILD_TYPE for this
if(enable_compile_optimizations)
set(optCFLAGS "-O3 -funroll-loops -fno-strict-aliasing ")
set(optCFLAGS "-O0 ")
endif()
-#ARM platforms have signed char by default, switch to unsigned for consistancy
+# ARM platforms have signed char by default, switch to unsigned for consistancy
if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "aarch64")
set(optCFLAGS "${optCFLAGS} -fsigned-char")
endif()
-if(enable_compile_optimizations AND CMAKE_COMPILER_IS_GNUCC
- AND (NOT enable_model-checking))
+if(enable_compile_optimizations AND CMAKE_COMPILER_IS_GNUCC)
# This is redundant (already in -03):
set(optCFLAGS "${optCFLAGS} -finline-functions ")
endif()
# Configure LTO
if(enable_lto) # User wants LTO. Try if we can do that
set(enable_lto OFF)
- if(enable_compile_optimizations
- AND (NOT enable_model-checking))
+ if(enable_compile_optimizations)
include(CheckIPOSupported)
check_ipo_supported(RESULT ipo LANGUAGES C CXX)
if(ipo)
if(NOT enable_compile_optimizations)
message(STATUS "LTO disabled: Compile-time optimizations turned off.")
else()
- if(enable_model-checking)
- message(STATUS "LTO disabled when compiling with model-checking.")
- else()
- message(STATUS "LTO does not seem usable -- try updating your build chain.")
- endif()
+ message(STATUS "LTO does not seem usable -- try updating your build chain.")
endif()
endif()
else()
endif()
endif()
-if(enable_model-checking AND enable_compile_optimizations)
- # Forget it, do not optimize the code (because it confuses the MC):
- set(optCFLAGS "-O0")
- # But you can still optimize this:
- set(src_list ${simgrid_sources})
- # except...
- list(FILTER src_list EXCLUDE REGEX "^src/kernel/activity/")
- list(FILTER src_list EXCLUDE REGEX "^src/kernel/actor/")
- list(FILTER src_list EXCLUDE REGEX "^src/kernel/context/")
- list(FILTER src_list EXCLUDE REGEX "^src/s4u/")
- foreach(src ${src_list})
- set (mcCFLAGS "-O3 -funroll-loops -fno-strict-aliasing")
- if(CMAKE_COMPILER_IS_GNUCC)
- set (mcCFLAGS "${mcCFLAGS} -finline-functions")
- endif()
- set_source_files_properties(${src} PROPERTIES COMPILE_FLAGS ${mcCFLAGS})
- endforeach()
-endif()
-
if (CMAKE_C_COMPILER_ID MATCHES "Intel")
# honor parentheses when determining the order of expression evaluation.
# disallow optimizations for floating-point arithmetic with Nans or +-Infs (breaks Eigen3)