Stepan Dyatkovskiy 24473120a2 SwitchInst refactoring. ... The purpose of refactoring is to hide operand roles from SwitchInst user (programmer). If you want to play with operands directly, probably you will need lower level methods than SwitchInst ones (TerminatorInst or may be User). After this patch we can reorganize SwitchInst operands and successors as we want. What was done: 1. Changed semantics of index inside the getCaseValue method: getCaseValue(0) means "get first case", not a condition. Use getCondition() if you want to resolve the condition. I propose don't mix SwitchInst case indexing with low level indexing (TI successors indexing, User's operands indexing), since it may be dangerous. 2. By the same reason findCaseValue(ConstantInt*) returns actual number of case value. 0 means first case, not default. If there is no case with given value, ErrorIndex will returned. 3. Added getCaseSuccessor method. I propose to avoid usage of TerminatorInst::getSuccessor if you want to resolve case successor BB. Use getCaseSuccessor instead, since internal SwitchInst organization of operands/successors is hidden and may be changed in any moment. 4. Added resolveSuccessorIndex and resolveCaseIndex. The main purpose of these methods is to see how case successors are really mapped in TerminatorInst. 4.1 "resolveSuccessorIndex" was created if you need to level down from SwitchInst to TerminatorInst. It returns TerminatorInst's successor index for given case successor. 4.2 "resolveCaseIndex" converts low level successors index to case index that curresponds to the given successor. Note: There are also related compatability fix patches for dragonegg, klee, llvm-gcc-4.0, llvm-gcc-4.2, safecode, clang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149481 91177308-0d34-0410-b5e6-96231b3b80d8		2012-02-01 07:49:51 +00:00
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AddrModeMatcher.cpp	Add a little heuristic to Value::isUsedInBasicBlock to speed it up for small basic blocks.	2011-12-05 17:23:27 +00:00
BasicBlockUtils.cpp	Remove unreachable code. (replace with llvm_unreachable to help GCC where necessary)	2012-01-17 04:43:56 +00:00
BasicInliner.cpp	Refactor code from inlining and globalopt that checks whether a function definition is unused, and enhance it so it can tell that functions which are only used by a blockaddress are in fact dead. This probably doesn't happen much on most code, but the Linux kernel's _THIS_IP_ can trigger this issue with blockaddress. (GlobalDCE can also handle the given tescase, but we only run that at -O3.) Found while looking at PR11180.	2011-10-20 05:23:42 +00:00
BreakCriticalEdges.cpp	SplitBlockPredecessors uses ArrayRef instead of Data and Size.	2011-12-09 21:19:53 +00:00
BuildLibCalls.cpp	Add support for custom names for library functions in TargetLibraryInfo. Add a custom name for fwrite and fputs on x86-32 OSX. Make SimplifyLibCalls honor the custom	2011-11-17 01:27:36 +00:00
CloneFunction.cpp	SwitchInst refactoring.	2012-02-01 07:49:51 +00:00
CloneModule.cpp	Fix llvm::CloneModule to correctly clone globals. Patch per bug report by Simon Moll on llvmdev.	2011-08-15 21:05:06 +00:00
CMakeLists.txt	Refactor code used in InstCombine::FoldAndOfICmps to new file.	2011-12-17 01:20:32 +00:00
CmpInstAnalysis.cpp	Remove unreachable code. (replace with llvm_unreachable to help GCC where necessary)	2012-01-17 04:43:56 +00:00
CodeExtractor.cpp	SwitchInst refactoring.	2012-02-01 07:49:51 +00:00
DemoteRegToStack.cpp	Make sure we don't insert instructions before a landingpad instruction.	2011-11-07 19:38:34 +00:00
InlineFunction.cpp	s/getInnerUnwindDest/getInnerResumeDest/g	2012-01-31 01:48:40 +00:00
InstructionNamer.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
LCSSA.cpp	There is no need to force DebugLoc on a PHI at this point.	2011-05-16 22:05:03 +00:00
LLVMBuild.txt	LLVMBuild: Remove trailing newline, which irked me.	2011-12-12 19:48:00 +00:00
Local.cpp	SwitchInst refactoring.	2012-02-01 07:49:51 +00:00
LoopSimplify.cpp	Make loop preheader insertion in LoopSimplify handle the case where the loop header is a landing pad correctly (by splitting the landingpad out of the loop header). Make some adjustments to the rest of LoopSimplify to make it clear that the rest of LoopSimplify isn't making bad assumptions about the presence of landing pads. PR11575.	2011-12-15 00:50:34 +00:00
LoopUnroll.cpp	Avoid a confusing assert for silly options: -unroll-runtime -unroll-count=1.	2011-12-16 02:03:48 +00:00
LoopUnrollRuntime.cpp	- Use getExitingBlock instead of getExitingBlocks.	2011-12-18 21:52:30 +00:00
LowerExpectIntrinsic.cpp	SwitchInst refactoring.	2012-02-01 07:49:51 +00:00
LowerInvoke.cpp	When inserting new instructions, use getFirstInsertionPt instead of	2011-08-25 01:08:34 +00:00
LowerSwitch.cpp	SwitchInst refactoring.	2012-02-01 07:49:51 +00:00
Makefile	make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.	2010-01-24 20:43:08 +00:00
Mem2Reg.cpp	Remove outdated references to dominance frontiers.	2011-01-18 03:53:26 +00:00
ModuleUtils.cpp	[asan] fix a bug (issue 19) where dlclose and the following mmap caused a false positive. compiler part.	2011-12-15 21:59:03 +00:00
PromoteMemoryToRegister.cpp	Propagate TargetLibraryInfo throughout ConstantFolding.cpp and	2011-12-01 03:08:23 +00:00
SimplifyCFG.cpp	SwitchInst refactoring.	2012-02-01 07:49:51 +00:00
SimplifyIndVar.cpp	Unweaken vtables as per http://llvm.org/docs/CodingStandards.html#ll_virtual_anch	2011-12-20 02:50:00 +00:00
SimplifyInstructions.cpp	Propagate TargetLibraryInfo throughout ConstantFolding.cpp and	2011-12-01 03:08:23 +00:00
SSAUpdater.cpp	Make headers standalone, move a virtual method out of line.	2011-11-14 17:22:45 +00:00
UnifyFunctionExitNodes.cpp	Remove PHINode::reserveOperandSpace(). Instead, add a parameter to	2011-03-30 11:28:46 +00:00
Utils.cpp	Add a new convenience pass for testing InstructionSimplify. Previously	2010-12-20 20:54:37 +00:00
ValueMapper.cpp	We need to map DebugLoc. It leads to Fuction * (through subprogram entry node) which should be appropriately mapped.	2011-08-04 20:02:18 +00:00