6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-15 20:29:48 +00:00
Code Issues Projects Releases Wiki Activity
d8b23109b2
llvm-6502/include/llvm/IR
History
Tim Northover 8f2a85e099 IR: add "cmpxchg weak" variant to support permitted failure. 
This commit adds a weak variant of the cmpxchg operation, as described
in C++11. A cmpxchg instruction with this modifier is permitted to
fail to store, even if the comparison indicated it should.

As a result, cmpxchg instructions must return a flag indicating
success in addition to their original iN value loaded. Thus, for
uniformity *all* cmpxchg instructions now return "{ iN, i1 }". The
second flag is 1 when the store succeeded.

At the DAG level, a new ATOMIC_CMP_SWAP_WITH_SUCCESS node has been
added as the natural representation for the new cmpxchg instructions.
It is a strong cmpxchg.

By default this gets Expanded to the existing ATOMIC_CMP_SWAP during
Legalization, so existing backends should see no change in behaviour.
If they wish to deal with the enhanced node instead, they can call
setOperationAction on it. Beware: as a node with 2 results, it cannot
be selected from TableGen.

Currently, no use is made of the extra information provided in this
patch. Test updates are almost entirely adapting the input IR to the
new scheme.

Summary for out of tree users:
------------------------------

+ Legacy Bitcode files are upgraded during read.
+ Legacy assembly IR files will be invalid.
+ Front-ends must adapt to different type for "cmpxchg".
+ Backends should be unaffected by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210903 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-13 14:24:07 +00:00
..
Argument.h Add 'nonnull', a new parameter and return attribute which indicates that the pointer is not null. Instcombine will elide comparisons between these and null. Patch by Luqman Aden! 2014-05-20 01:23:40 +00:00
AssemblyAnnotationWriter.h
Attributes.h Add a new attribute called 'jumptable' that creates jump-instruction tables for functions marked with this attribute. 2014-06-05 19:29:43 +00:00
AutoUpgrade.h [Layering] Move AutoUpgrade.h into the IR library where its 2014-03-05 10:34:14 +00:00
BasicBlock.h Fix some obvious Doxygen comment bugs. 2014-05-06 05:05:59 +00:00
CallingConv.h Revert "[ms-cxxabi] Add a new calling convention that swaps 'this' and 'sret'" 2014-05-09 22:56:42 +00:00
CallSite.h Improve 'tail' call marking in TRE. A bootstrap of clang goes from 375k calls marked tail in the IR to 470k, however this improvement does not carry into an improvement of the call/jmp ratio on x86. The most common pattern is a tail call + br to a block with nothing but a 'ret'. 2014-05-05 23:59:03 +00:00
CFG.h [C++11] Add range based accessors for the Use-Def chain of a Value. 2014-03-09 03:16:01 +00:00
CMakeLists.txt
Constant.h Add a Constant version of stripPointerCasts. 2014-06-04 19:01:48 +00:00
ConstantFolder.h [Modules] Move the ConstantFolder into the IR library where it can 2014-03-04 12:02:47 +00:00
ConstantRange.h [C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr. 2014-04-09 06:08:46 +00:00
Constants.h [C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr. 2014-04-09 06:08:46 +00:00
DataLayout.h Fix build failure with MSVC, following r208680 2014-05-13 11:16:22 +00:00
DebugInfo.h DebugInfo: Use enum instead of unsigned 2014-05-07 12:49:08 +00:00
DebugLoc.h Add missing const specifier to a const method. 2014-06-05 14:32:15 +00:00
DerivedTypes.h [C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr. 2014-04-09 06:08:46 +00:00
DiagnosticInfo.h Remove some redundant doc comments 2014-06-03 19:06:49 +00:00
DiagnosticPrinter.h [C++11] Add 'override' keyword to IR library. 2014-03-05 06:35:38 +00:00
DIBuilder.h PR19598: Provide the ability to RAUW a declaration with itself, creating a non-temporary copy and using that to RAUW. 2014-05-06 03:41:57 +00:00
Dominators.h [C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr. 2014-04-09 06:08:46 +00:00
Function.h Split GlobalValue into GlobalValue and GlobalObject. 2014-05-13 18:45:48 +00:00
GetElementPtrTypeIterator.h [C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr. 2014-04-09 06:08:46 +00:00
GlobalAlias.h Allow alias to point to an arbitrary ConstantExpr. 2014-06-03 02:41:57 +00:00
GlobalObject.h Allow alias to point to an arbitrary ConstantExpr. 2014-06-03 02:41:57 +00:00
GlobalValue.h Allow alias to point to an arbitrary ConstantExpr. 2014-06-03 02:41:57 +00:00
GlobalVariable.h [pr19844] Add thread local mode to aliases. 2014-05-28 18:15:43 +00:00
GVMaterializer.h Don't use 'using std::error_code' in include/llvm. 2014-06-12 21:46:39 +00:00
InlineAsm.h Remove copy ctors that did the same thing as the default one. 2014-03-11 11:32:49 +00:00
InstIterator.h [Modules] Move InstIterator out of the Support library, where it had no 2014-03-04 10:30:26 +00:00
InstrTypes.h [C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr. 2014-04-09 06:08:46 +00:00
Instruction.def
Instruction.h [C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr. 2014-04-09 06:08:46 +00:00
Instructions.h IR: add "cmpxchg weak" variant to support permitted failure. 2014-06-13 14:24:07 +00:00
InstVisitor.h [Layering] Move InstVisitor.h into the IR library as it is pretty 2014-03-06 03:23:41 +00:00
IntrinsicInst.h
Intrinsics.h Intrinsics: add LLVMHalfElementsVectorType constraint 2014-03-29 07:04:54 +00:00
Intrinsics.td AArch64/ARM64: move ARM64 into AArch64's place 2014-05-24 12:50:23 +00:00
IntrinsicsAArch64.td AArch64/ARM64: move ARM64 into AArch64's place 2014-05-24 12:50:23 +00:00
IntrinsicsARM.td ARM: introduce llvm.arm.undefined intrinsic 2014-05-22 04:46:46 +00:00
IntrinsicsHexagon.td
IntrinsicsMips.td
IntrinsicsNVVM.td [NVPTX] Add preliminary intrinsics and codegen support for textures/surfaces 2014-04-09 15:39:15 +00:00
IntrinsicsPowerPC.td
IntrinsicsR600.td
IntrinsicsX86.td Add AVX512 masked leadz instrinsic support. 2014-06-11 12:54:45 +00:00
IntrinsicsXCore.td
IRBuilder.h Add LoadCombine pass. 2014-05-29 01:55:07 +00:00
IRPrintingPasses.h
LeakDetector.h [Modules] Move the LeakDetector header into the IR library where the 2014-03-04 12:46:06 +00:00
LegacyPassManager.h [C++11] Add 'override' keyword to IR library. 2014-03-05 06:35:38 +00:00
LegacyPassManagers.h Fix some misplaced spaces around 'override' 2014-05-24 20:19:40 +00:00
LegacyPassNameParser.h Do not register and de-register PassRegistrationListeners during 2014-06-12 00:16:36 +00:00
LLVMContext.h Add support for missed and analysis optimization remarks. 2014-05-22 14:19:46 +00:00
Mangler.h
MDBuilder.h Move MDBuilder's methods out of line. 2014-04-12 14:26:59 +00:00
Metadata.h Remove AssemblyAnnotationWriter from NamedMDNode::print. 2014-04-23 12:23:05 +00:00
Module.h Don't use 'using std::error_code' in include/llvm. 2014-06-12 21:46:39 +00:00
NoFolder.h [Modules] Move the NoFolder into the IR library as it creates 2014-03-04 12:05:47 +00:00
OperandTraits.h
Operator.h [Modules] Move GetElementPtrTypeIterator into the IR library. As its 2014-03-04 10:40:04 +00:00
PassManager.h [C++] Use 'nullptr'. 2014-04-24 06:44:33 +00:00
PatternMatch.h [Modules] Move the LLVM IR pattern match header into the IR library, it 2014-03-04 11:08:18 +00:00
PredIteratorCache.h [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-15 04:59:12 +00:00
SymbolTableListTraits.h [C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr. 2014-04-09 06:08:46 +00:00
Type.h [C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr. 2014-04-09 06:08:46 +00:00
TypeBuilder.h
TypeFinder.h
Use.h Updated the link to the correct URL. 2014-04-29 13:21:05 +00:00
User.h Reorder Value and User fields to save 8 bytes of padding on 64-bit 2014-06-09 23:32:20 +00:00
Value.h Reorder Value and User fields to save 8 bytes of padding on 64-bit 2014-06-09 23:32:20 +00:00
ValueHandle.h [C++] Use 'nullptr'. 2014-04-24 06:44:33 +00:00
ValueMap.h [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-14 00:51:57 +00:00
ValueSymbolTable.h
Verifier.h verify-di: Implement DebugInfoVerifier 2014-04-15 16:27:38 +00:00