llvm/lib/AsmParser
JF Bastien b36d1a86f1 NFC: make AtomicOrdering an enum class
Summary:
In the context of http://wg21.link/lwg2445 C++ uses the concept of
'stronger' ordering but doesn't define it properly. This should be fixed
in C++17 barring a small question that's still open.

The code currently plays fast and loose with the AtomicOrdering
enum. Using an enum class is one step towards tightening things. I later
also want to tighten related enums, such as clang's
AtomicOrderingKind (which should be shared with LLVM as a 'C++ ABI'
enum).

This change touches a few lines of code which can be improved later, I'd
like to keep it as NFC for now as it's already quite complex. I have
related changes for clang.

As a follow-up I'll add:
  bool operator<(AtomicOrdering, AtomicOrdering) = delete;
  bool operator>(AtomicOrdering, AtomicOrdering) = delete;
  bool operator<=(AtomicOrdering, AtomicOrdering) = delete;
  bool operator>=(AtomicOrdering, AtomicOrdering) = delete;
This is separate so that clang and LLVM changes don't need to be in sync.

Reviewers: jyknight, reames

Subscribers: jyknight, llvm-commits

Differential Revision: http://reviews.llvm.org/D18775

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265602 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-06 21:19:33 +00:00
..
CMakeLists.txt modules: Add explicit dependency on intrinsics_gen 2015-06-16 00:44:12 +00:00
LLLexer.cpp AMDGPU: Add a shader calling convention 2016-04-06 19:40:20 +00:00
LLLexer.h Remove empty non-virtual destructors or mark them =default when non-public 2015-04-11 15:32:26 +00:00
LLParser.cpp NFC: make AtomicOrdering an enum class 2016-04-06 21:19:33 +00:00
LLParser.h [IFUNC] Use GlobalIndirectSymbol when aliases and ifuncs have something similar 2016-04-05 08:47:51 +00:00
LLToken.h AMDGPU: Add a shader calling convention 2016-04-06 19:40:20 +00:00
LLVMBuild.txt LLVMBuild: Remove trailing newline, which irked me. 2011-12-12 19:48:00 +00:00
module.modulemap [modules] Add module maps for LLVM. These are not quite ready for prime-time 2014-05-21 02:46:14 +00:00
Parser.cpp [AsmParser] Expose an API to parse a string starting with a type. 2016-03-08 00:37:07 +00:00