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llvm-6502/include/llvm/IR
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David Majnemer 3bbb4b15ae InstCombine: Fix a potential bug in 0 - (X sdiv C) -> (X sdiv -C) 
While *most* (X sdiv 1) operations will get caught by InstSimplify, it
is still possible for a sdiv to appear in the worklist which hasn't been
simplified yet.

This means that it is possible for 0 - (X sdiv 1) to get transformed
into (X sdiv -1); dividing by -1 can make the transform produce undef
values instead of the proper result.

Sorry for the lack of testcase, it's a bit problematic because it relies
on the exact order of operations in the worklist.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215818 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-16 09:23:42 +00:00
..
Argument.h Provide convenient access to the zext/sext attributes of function arguments. NFC. 2014-08-05 05:43:41 +00:00
AssemblyAnnotationWriter.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
Attributes.h Add a dereferenceable attribute 2014-07-18 15:51:28 +00:00
AutoUpgrade.h Rename loop unrolling and loop vectorizer metadata to have a common prefix. 2014-06-25 15:41:00 +00:00
BasicBlock.h Move helper for getting a terminating musttail call to BasicBlock 2014-08-12 00:05:15 +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 Add a dereferenceable attribute 2014-07-18 15:51:28 +00:00
CFG.h Revert "[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges." 2014-07-21 17:06:51 +00:00
CMakeLists.txt
Comdat.h IR: Add COMDATs to the IR 2014-06-27 18:19:56 +00:00
Constant.h InstCombine: Fix a potential bug in 0 - (X sdiv C) -> (X sdiv -C) 2014-08-16 09:23:42 +00:00
ConstantFolder.h Add CreatePointerBitCastOrAddrSpaceCast to IRBuilder and co. 2014-07-14 17:24:35 +00:00
ConstantRange.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +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 typo 2014-06-25 23:39:08 +00:00
DebugInfo.h Debug info: Infrastructure to support debug locations for fragmented 2014-08-01 22:11:58 +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 Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
DiagnosticPrinter.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
DIBuilder.h Debug info: Infrastructure to support debug locations for fragmented 2014-08-01 22:11:58 +00:00
Dominators.h Move operator[] to DomTreeNodeBase 2014-07-02 06:50:48 +00:00
Function.h Add a dereferenceable attribute 2014-07-18 15:51:28 +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 IR: Add COMDATs to the IR 2014-06-27 18:19:56 +00:00
GlobalObject.h IR: Add COMDATs to the IR 2014-06-27 18:19:56 +00:00
GlobalValue.h Add the missing hasLinkOnceODRLinkage predicate. 2014-07-30 15:57:51 +00:00
GlobalVariable.h [pr19844] Add thread local mode to aliases. 2014-05-28 18:15:43 +00:00
GVMaterializer.h Make ObjectFile and BitcodeReader always own the MemoryBuffer. 2014-06-23 21:53:12 +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 Add CreatePointerBitCastOrAddrSpaceCast to IRBuilder and co. 2014-07-14 17:24:35 +00:00
Instruction.def
Instruction.h AA metadata refactoring (introduce AAMDNodes) 2014-07-24 12:16:19 +00:00
Instructions.h Add two helper functions: isAtLeastAcquire, isAtLeastRelease 2014-08-15 22:25:12 +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 TableGen: introduce support for MSBuiltin 2014-07-04 18:42:25 +00:00
Intrinsics.td Add @llvm.assume, lowering, and some basic properties 2014-07-25 21:13:35 +00:00
IntrinsicsAArch64.td Port memory barriers intrinsics to AArch64 2014-07-17 10:50:20 +00:00
IntrinsicsARM.td Fix typos in comments 2014-08-15 22:17:28 +00:00
IntrinsicsHexagon.td
IntrinsicsMips.td
IntrinsicsNVVM.td [NVPTX] Add more surface/texture intrinsics, including CUDA unified texture fetch 2014-07-17 11:59:04 +00:00
IntrinsicsPowerPC.td
IntrinsicsR600.td R600/SI: Add intrinsic for ldexp 2014-08-15 17:30:25 +00:00
IntrinsicsX86.td [AVX512] Switch FMA intrinsics to the masking version 2014-08-14 17:13:30 +00:00
IntrinsicsXCore.td
IRBuilder.h Add scoped-noalias metadata 2014-07-24 14:25:39 +00:00
IRPrintingPasses.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
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 Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
LegacyPassNameParser.h Do not register and de-register PassRegistrationListeners during 2014-06-12 00:16:36 +00:00
LLVMContext.h IR: Fix up doxygen comment for LLVMContext::diagnose 2014-08-04 21:49:15 +00:00
Mangler.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
MDBuilder.h Simplify and improve scoped-noalias metadata semantics 2014-07-25 15:50:02 +00:00
Metadata.h Add scoped-noalias metadata 2014-07-24 14:25:39 +00:00
Module.h IR: Expose Module::rbegin() and rend() 2014-07-28 21:09:32 +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 Canonicalize header guards into a common format. 2014-08-13 16:26:38 +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 Canonicalize header guards into a common format. 2014-08-13 16:26:38 +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
UseListOrder.h UseListOrder: Use std::vector 2014-08-06 17:36:08 +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 IR: Add Value::reverseUseList() 2014-08-01 23:28:49 +00:00
ValueHandle.h [C++] Use 'nullptr'. 2014-04-24 06:44:33 +00:00
ValueMap.h Revert "Replace Execution Engine's mutex with std::recursive_mutex." 2014-06-20 21:07:14 +00:00
ValueSymbolTable.h
Verifier.h verify-di: Implement DebugInfoVerifier 2014-04-15 16:27:38 +00:00