Erik Pilkington 6012b27129 [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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@364954 91177308-0d34-0410-b5e6-96231b3b80d8

2019-07-02 18:28:13 +00:00

..

IntelJITEvents

[DebugInfo] IntelJitEventListener follow up for "add SectionedAddress ..."

2019-03-25 13:50:26 +00:00

Interpreter

[ExecutionEngine] Fix rL362941: Add UnaryOperator visitor to the interpreter

2019-06-10 16:05:25 +00:00

JITLink

[JITLink] Move JITLinkMemoryManager into its own header.

2019-06-14 19:41:21 +00:00

MCJIT

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

OProfileJIT

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

Orc

[ORC] Rename MaterializationResponsibility resolve and emit methods to

2019-06-13 20:11:23 +00:00

PerfJITEvents

Fix LLVM_USE_PERF build after getPageSize change

2019-05-09 10:10:44 +00:00

RuntimeDyld

[RuntimeDyld] fix too-small-bitmask error

2019-06-01 04:51:26 +00:00

CMakeLists.txt

Initial implementation of JITLink - A replacement for RuntimeDyld.

2019-04-20 17:10:34 +00:00

ExecutionEngine.cpp

[C++2a] Add __builtin_bit_cast, used to implement std::bit_cast

2019-07-02 18:28:13 +00:00

ExecutionEngineBindings.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

GDBRegistrationListener.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

LLVMBuild.txt

Initial implementation of JITLink - A replacement for RuntimeDyld.

2019-04-20 17:10:34 +00:00

SectionMemoryManager.cpp

[Support] Renamed member 'Size' to 'AllocatedSize' in MemoryBlock and OwningMemoryBlock.

2019-05-20 20:53:05 +00:00

TargetSelect.cpp

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00