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Reapplying r256836 with a fix for MSVC 14 support.

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Enable more strict standards conformance in MSVC for rvalue casting and string literal type conversion to non-const types. Also enables generation of intrinsics for more functions.

Patch by Alexander Riccio

llvm-svn: 258687
This commit is contained in:
Aaron Ballman 2016-01-25 14:17:39 +00:00
parent 5131ab0907
commit aabad88851
1 changed files with 17 additions and 0 deletions
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17
cmake/modules/HandleLLVMOptions.cmake
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@ -371,6 +371,23 @@ if( MSVC )
append("/Zc:inline" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
# /Zc:strictStrings is incompatible with VS12's (Visual Studio 2013's)
# debug mode headers. Instead of only enabling them in VS2013's debug mode,
# we'll just enable them for Visual Studio 2015 (VS 14, MSVC_VERSION 1900)
# and up.
if (NOT (MSVC_VERSION LESS 1900))
# Disable string literal const->non-const type conversion.
# "When specified, the compiler requires strict const-qualification
# conformance for pointers initialized by using string literals."
append("/Zc:strictStrings" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
endif(NOT (MSVC_VERSION LESS 1900))
# "Generate Intrinsic Functions".
append("/Oi" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
# "Enforce type conversion rules".
append("/Zc:rvalueCast" CMAKE_CXX_FLAGS)
if (NOT LLVM_ENABLE_TIMESTAMPS AND CMAKE_CXX_COMPILER_ID MATCHES "Clang")
# clang-cl and cl by default produce non-deterministic binaries because
# link.exe /incremental requires a timestamp in the .obj file. clang-cl