IR: Set -preserve-bc-uselistorder=false by default

[oota-llvm.git] / cmake / modules / HandleLLVMOptions.cmake

diff --git a/cmake/modules/HandleLLVMOptions.cmake b/cmake/modules/HandleLLVMOptions.cmake
index 30d0cd774f4925fab07d7ece515335733d70f67b..27147dcfd29bd578adfeaa9b62aa7b8bb734a9ab 100644 (file)
--- a/cmake/modules/HandleLLVMOptions.cmake
+++ b/cmake/modules/HandleLLVMOptions.cmake
@@ -78,6 +78,20 @@ if( LLVM_ENABLE_ASSERTIONS )
   endif()
 endif()
 
+string(TOUPPER "${LLVM_ABI_BREAKING_CHECKS}" uppercase_LLVM_ABI_BREAKING_CHECKS)
+
+if( uppercase_LLVM_ABI_BREAKING_CHECKS STREQUAL "WITH_ASSERTS" )
+  if( LLVM_ENABLE_ASSERTIONS )
+    set( LLVM_ENABLE_ABI_BREAKING_CHECKS 1 )
+  endif()
+elseif( uppercase_LLVM_ABI_BREAKING_CHECKS STREQUAL "FORCE_ON" )
+  set( LLVM_ENABLE_ABI_BREAKING_CHECKS 1 )
+elseif( uppercase_LLVM_ABI_BREAKING_CHECKS STREQUAL "FORCE_OFF" )
+  # We don't need to do anything special to turn off ABI breaking checks.
+else()
+  message(FATAL_ERROR "Unknown value for LLVM_ABI_BREAKING_CHECKS: \"${LLVM_ABI_BREAKING_CHECKS}\"!")
+endif()
+
 if(WIN32)
   set(LLVM_HAVE_LINK_VERSION_SCRIPT 0)
   if(CYGWIN)
@@ -243,7 +257,7 @@ if( MSVC )
   if( MSVC11 )
     add_llvm_definitions(-D_VARIADIC_MAX=10)
   endif()
-
+  
   # Add definitions that make MSVC much less annoying.
   add_llvm_definitions(
     # For some reason MS wants to deprecate a bunch of standard functions...
@@ -274,7 +288,23 @@ if( MSVC )
     -wd4624 # Suppress ''derived class' : destructor could not be generated because a base class destructor is inaccessible'
     -wd4722 # Suppress 'function' : destructor never returns, potential memory leak
     -wd4800 # Suppress ''type' : forcing value to bool 'true' or 'false' (performance warning)'
-
+    -wd4100 # Suppress 'unreferenced formal parameter'
+    -wd4127 # Suppress 'conditional expression is constant'
+    -wd4512 # Suppress 'assignment operator could not be generated'
+    -wd4505 # Suppress 'unreferenced local function has been removed'
+    -wd4610 # Suppress '<class> can never be instantiated'
+    -wd4510 # Suppress 'default constructor could not be generated'
+    -wd4702 # Suppress 'unreachable code'
+    -wd4245 # Suppress 'signed/unsigned mismatch'
+    -wd4706 # Suppress 'assignment within conditional expression'
+    -wd4310 # Suppress 'cast truncates constant value'
+    -wd4701 # Suppress 'potentially uninitialized local variable'
+    -wd4703 # Suppress 'potentially uninitialized local pointer variable'
+    -wd4389 # Suppress 'signed/unsigned mismatch'
+    -wd4611 # Suppress 'interaction between '_setjmp' and C++ object destruction is non-portable'
+    -wd4805 # Suppress 'unsafe mix of type <type> and type <type> in operation'
+    -wd4204 # Suppress 'nonstandard extension used : non-constant aggregate initializer'
+    
     # Promoted warnings.
     -w14062 # Promote 'enumerator in switch of enum is not handled' to level 1 warning.
 
@@ -285,6 +315,13 @@ if( MSVC )
   # Enable warnings
   if (LLVM_ENABLE_WARNINGS)
     append("/W4" msvc_warning_flags)
+    # CMake appends /W3 by default, and having /W3 followed by /W4 will result in 
+    # cl : Command line warning D9025 : overriding '/W3' with '/W4'.  Since this is
+    # a command line warning and not a compiler warning, it cannot be suppressed except
+    # by fixing the command line.
+    string(REGEX REPLACE " /W[0-4]" "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
+    string(REGEX REPLACE " /W[0-4]" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+
     if (LLVM_ENABLE_PEDANTIC)
       # No MSVC equivalent available
     endif (LLVM_ENABLE_PEDANTIC)
@@ -456,7 +493,8 @@ endif()
 # But MinSizeRel seems to add that automatically, so maybe disable these
 # flags instead if LLVM_NO_DEAD_STRIP is set.
 if(NOT CYGWIN AND NOT WIN32)
-  if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
+  if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin" AND
+     NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG")
     check_c_compiler_flag("-Werror -fno-function-sections" C_SUPPORTS_FNO_FUNCTION_SECTIONS)
     if (C_SUPPORTS_FNO_FUNCTION_SECTIONS)
       # Don't add -ffunction-section if it can be disabled with -fno-function-sections.