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81338a4890
llvm-6502/include/llvm
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JF Bastien 81338a4890 Mutate TargetLowering::shouldExpandAtomicRMWInIR to specifically dictate how AtomicRMWInsts are expanded. 
Summary:
In PNaCl, most atomic instructions have their own @llvm.nacl.atomic.* function, each one, with a few exceptions, represents a consistent behaviour across all NaCl-supported targets. Unfortunately, the atomic RMW operations nand, [u]min, and [u]max aren't directly represented by any such @llvm.nacl.atomic.* function. This patch refines shouldExpandAtomicRMWInIR in TargetLowering so that a future `Le32TargetLowering` class can selectively inform the caller how the target desires the atomic RMW instruction to be expanded (ie via load-linked/store-conditional for ARM/AArch64, via cmpxchg for X86/others?, or not at all for Mips) if at all.

This does not represent a behavioural change and as such no tests were added.

Patch by: Richard Diamond.

Reviewers: jfb

Reviewed By: jfb

Subscribers: jfb, aemerson, t.p.northover, llvm-commits

Differential Revision: http://reviews.llvm.org/D7713

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231250 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-04 15:47:57 +00:00
..
ADT Revert "[ADT] fail-fast iterators for DenseMap" 2015-03-04 06:05:37 +00:00
Analysis Remove explicit RNSuccIterator copy assignment in favor of implicit default 2015-03-04 07:51:50 +00:00
AsmParser Pass a MemoryBufferRef when we can avoid taking ownership. 2014-08-26 21:49:01 +00:00
Bitcode [opaque pointer type] Bitcode support for explicit type parameter on GEP. 2015-02-25 01:08:52 +00:00
CodeGen Move emitDIE and emitAbbrevs to AsmPrinter. NFC. 2015-03-04 02:30:17 +00:00
Config [Support/Timer] Make GetMallocUsage() aware of jemalloc. 2015-02-19 07:27:14 +00:00
DebugInfo [llvm-pdbdump] Display full enum definitions. 2015-03-04 06:09:53 +00:00
ExecutionEngine Orc/JITSymbol.h requires not "Compiler.h" but "DataTypes.h" due to uint64_t. 2015-02-23 11:12:52 +00:00
IR Remove 'llvm.x86.avx2.vbroadcasti128' intrinsic. 2015-03-04 00:13:25 +00:00
IRReader Pass a MemoryBufferRef when we can avoid taking ownership. 2014-08-26 21:49:01 +00:00
LineEditor [C++11] Replace OwningPtr with std::unique_ptr in places where it doesn't break the API. 2014-04-21 09:34:48 +00:00
Linker [LTO API] add lto_codegen_set_module to set the destination module. 2015-02-24 00:45:56 +00:00
LTO [LTO API] fix memory leakage introduced at r230290. 2015-02-25 21:20:53 +00:00
MC [MC][Target] Implement support for R_X86_64_SIZE{32,64}. 2015-03-04 06:49:39 +00:00
Object Object: Add range iterators to Archive symbols 2015-03-04 02:05:06 +00:00
Option Remove explicit no-op dtor in favor of the implicit dtor so as not to disable/deprecate the copy operations. 2015-03-03 19:53:02 +00:00
ProfileData Add another missing header that used to be included transitively. 2015-03-02 01:08:07 +00:00
Support use = default instead of {} 2015-03-04 07:35:04 +00:00
TableGen Removing LLVM_DELETED_FUNCTION, as MSVC 2012 was the last reason for requiring the macro. NFC; LLVM edition. 2015-02-15 22:54:22 +00:00
Target Mutate TargetLowering::shouldExpandAtomicRMWInIR to specifically dictate how AtomicRMWInsts are expanded. 2015-03-04 15:47:57 +00:00
Transforms LowerBitSets: Use byte arrays instead of bit sets to represent in-memory bit sets. 2015-03-03 00:49:28 +00:00
CMakeLists.txt Remove llvm_headers_do_not_build for the benefit of XCode and Visual Studio users. 2014-08-14 00:51:47 +00:00
InitializePasses.h Remove the Forward Control Flow Integrity pass and its dependencies. 2015-02-27 19:03:38 +00:00
LinkAllIR.h
LinkAllPasses.h Remove the Forward Control Flow Integrity pass and its dependencies. 2015-02-27 19:03:38 +00:00
module.modulemap [modules] Add include/llvm/IR/DebugInfoFlags.def to the textual headers list. 2015-02-25 01:44:09 +00:00
module.modulemap.build [modules] Add module maps for LLVM. These are not quite ready for prime-time 2014-05-21 02:46:14 +00:00
Pass.h Removing LLVM_DELETED_FUNCTION, as MSVC 2012 was the last reason for requiring the macro. NFC; LLVM edition. 2015-02-15 22:54:22 +00:00
PassAnalysisSupport.h Removing LLVM_DELETED_FUNCTION, as MSVC 2012 was the last reason for requiring the macro. NFC; LLVM edition. 2015-02-15 22:54:22 +00:00
PassInfo.h Removing LLVM_DELETED_FUNCTION, as MSVC 2012 was the last reason for requiring the macro. NFC; LLVM edition. 2015-02-15 22:54:22 +00:00
PassRegistry.h [PM] Remove an unused and rather expensive mapping from an analysis 2014-10-06 00:30:59 +00:00
PassSupport.h Defining a new API for debug options that doesn't rely on static global cl::opts. 2014-10-15 21:54:35 +00:00