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
..
AsmWriter.cpp	IR: Print a newline when dumping Types	2014-08-12 03:24:59 +00:00
AsmWriter.h	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
AttributeImpl.h	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
Attributes.cpp	Add a dereferenceable attribute	2014-07-18 15:51:28 +00:00
AutoUpgrade.cpp	Don't upgrade global constructors when reading bitcode	2014-08-12 16:46:37 +00:00
BasicBlock.cpp	Move helper for getting a terminating musttail call to BasicBlock	2014-08-12 00:05:15 +00:00
CMakeLists.txt	IPO: Add use-list-order verifier	2014-07-25 14:49:26 +00:00
Comdat.cpp	IR: Add COMDATs to the IR	2014-06-27 18:19:56 +00:00
ConstantFold.cpp	IR: Don't add inbounds to GEPs of extern_weak variables	2014-08-16 01:54:32 +00:00
ConstantFold.h	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
ConstantRange.cpp
Constants.cpp	InstCombine: Fix a potential bug in 0 - (X sdiv C) -> (X sdiv -C)	2014-08-16 09:23:42 +00:00
ConstantsContext.h	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
Core.cpp	[LLVM-C] Expose User::getOperandUse as LLVMGetOperandUse.	2014-08-12 02:55:40 +00:00
DataLayout.cpp	Revert "Introduce a string_ostream string builder facilty"	2014-06-26 22:52:05 +00:00
DebugInfo.cpp	Revert "Reapply "DebugInfo: Ensure that all debug location scope chains from instructions within a function, lead to the function itself.""	2014-08-06 22:30:12 +00:00
DebugLoc.cpp
DiagnosticInfo.cpp	Rename DiagnosticInfoOptimizationWarning to DiagnosticInfoOptimizationFailure	2014-07-18 19:36:04 +00:00
DiagnosticPrinter.cpp
DIBuilder.cpp	Debug info: Infrastructure to support debug locations for fragmented	2014-08-01 22:11:58 +00:00
Dominators.cpp	Revert "[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges."	2014-07-21 17:06:51 +00:00
Function.cpp	Provide convenient access to the zext/sext attributes of function arguments. NFC.	2014-08-05 05:43:41 +00:00
GCOV.cpp	Update the MemoryBuffer API to use ErrorOr.	2014-07-06 17:43:13 +00:00
Globals.cpp	IR: Add COMDATs to the IR	2014-06-27 18:19:56 +00:00
GVMaterializer.cpp
InlineAsm.cpp
Instruction.cpp	IR: add "cmpxchg weak" variant to support permitted failure.	2014-06-13 14:24:07 +00:00
Instructions.cpp	Add CreatePointerBitCastOrAddrSpaceCast to IRBuilder and co.	2014-07-14 17:24:35 +00:00
IntrinsicInst.cpp
IRBuilder.cpp	Add scoped-noalias metadata	2014-07-24 14:25:39 +00:00
IRPrintingPasses.cpp
LeakDetector.cpp
LeaksContext.h	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
LegacyPassManager.cpp	Fix typos:	2014-08-11 18:04:46 +00:00
LLVMBuild.txt
LLVMContext.cpp	Add scoped-noalias metadata	2014-07-24 14:25:39 +00:00
LLVMContextImpl.cpp
LLVMContextImpl.h	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
Makefile
Mangler.cpp	Don't count inreg params when mangling fastcall functions	2014-08-06 18:09:04 +00:00
MDBuilder.cpp	Simplify and improve scoped-noalias metadata semantics	2014-07-25 15:50:02 +00:00
Metadata.cpp	Add scoped-noalias metadata	2014-07-24 14:25:39 +00:00
Module.cpp	IR: cleanup Module::dropReferences	2014-07-03 16:12:55 +00:00
module.modulemap
Pass.cpp	Remove pimpl class from PassRegistry.	2014-06-12 16:06:51 +00:00
PassManager.cpp	Remove unnecessary/redundant std::move	2014-07-16 17:09:21 +00:00
PassRegistry.cpp	Remove pimpl class from PassRegistry.	2014-06-12 16:06:51 +00:00
SymbolTableListTraitsImpl.h	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
Type.cpp	pr20588: add missing calls to va_end.	2014-08-08 15:57:37 +00:00
TypeFinder.cpp
Use.cpp
UseListOrder.cpp	verify-uselistorder: Move shuffleUseLists() out of lib/IR	2014-08-01 23:03:36 +00:00
User.cpp
Value.cpp	IR: Add Value::reverseUseList()	2014-08-01 23:28:49 +00:00
ValueSymbolTable.cpp
ValueTypes.cpp
Verifier.cpp	Revert "[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges."	2014-07-21 17:06:51 +00:00