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Disable MSVC 2015's warning about zero extending after ~ and others

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Very often in LLVM we have APIs that take a bitwidth and a uint64_t that
we pass immediates such as ~0U to. Consider APInt, Constant, and
MachineInstrBuilder::addImm. Fixing all uses of these APIs to manually
extend their arguments to uint64_t doesn't seem worth it.

llvm-svn: 260416
This commit is contained in:
Reid Kleckner 2016-02-10 19:25:51 +00:00
parent b554ce57f4
commit 0249db6d41
1 changed files with 2 additions and 1 deletions
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3
cmake/modules/HandleLLVMOptions.cmake
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@ -328,6 +328,7 @@ if( MSVC )
# C4592 is disabled because of false positives in Visual Studio 2015
# Update 1. Re-evaluate the usefulness of this diagnostic with Update 2.
-wd4592 # Suppress ''var': symbol will be dynamically initialized (implementation limitation)
-wd4319 # Suppress ''operator' : zero extending 'type' to 'type' of greater size'
# Ideally, we'd like this warning to be enabled, but MSVC 2013 doesn't
# support the 'aligned' attribute in the way that clang sources requires (for
@ -336,7 +337,7 @@ if( MSVC )
# When we switch to requiring a version of MSVC that supports the 'alignas'
# specifier (MSVC 2015?) this warning can be re-enabled.
-wd4324 # Suppress 'structure was padded due to __declspec(align())'
# Promoted warnings.
-w14062 # Promote 'enumerator in switch of enum is not handled' to level 1 warning.