llvm-project/clang/lib/Edit
Erik Pilkington eee944e7f9 [C++2a] Add __builtin_bit_cast, used to implement std::bit_cast
This commit adds a new builtin, __builtin_bit_cast(T, v), which performs a
bit_cast from a value v to a type T. This expression can be evaluated at
compile time under specific circumstances.

The compile time evaluation currently doesn't support bit-fields, but I'm
planning on fixing this in a follow up (some of the logic for figuring this out
is in CodeGen). I'm also planning follow-ups for supporting some more esoteric
types that the constexpr evaluator supports, as well as extending
__builtin_memcpy constexpr evaluation to use the same infrastructure.

rdar://44987528

Differential revision: https://reviews.llvm.org/D62825

llvm-svn: 364954
2019-07-02 18:28:13 +00:00
..
CMakeLists.txt
Commit.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
EditedSource.cpp Range-style std::find{,_if} -> llvm::find{,_if}. NFC 2019-03-31 08:48:19 +00:00
RewriteObjCFoundationAPI.cpp [C++2a] Add __builtin_bit_cast, used to implement std::bit_cast 2019-07-02 18:28:13 +00:00