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path: root/lib/Transforms/Scalar/SCCP.cpp
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* Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector ↵Craig Topper2013-07-14
| | | | | | size. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186274 91177308-0d34-0410-b5e6-96231b3b80d8
* dbgs() << Instruction doesn't print a newline on the end any more. Update theseNick Lewycky2013-06-26
| | | | | | | | debug statements to add a missing newline. Also canonicalize to '\n' instead of "\n"; the latter calls a function with a loop the former does not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184897 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead code and whitespace.Chad Rosier2013-02-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175804 91177308-0d34-0410-b5e6-96231b3b80d8
* Update a comment that looks to have been accidentally deleted many moons ago.Chad Rosier2013-02-20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175658 91177308-0d34-0410-b5e6-96231b3b80d8
* Move all of the header files which are involved in modelling the LLVM IRChandler Carruth2013-01-02
| | | | | | | | | | | | | | | | | | | | | into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the new script to sort the includes of every file under lib.Chandler Carruth2012-12-03
| | | | | | | | | | | | | | | | | Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the InstVisitor utility into VMCore where it belongs. It heavilyChandler Carruth2012-11-30
| | | | | | | | | | | | depends on the IR infrastructure, there is no sense in it being off in Support land. This is in preparation to start working to expand InstVisitor into more special-purpose visitors that are still generic and can be re-used across different passes. The expansion will go into the Analylis tree though as nothing in VMCore needs it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168972 91177308-0d34-0410-b5e6-96231b3b80d8
* Move TargetData to DataLayout.Micah Villmow2012-10-08
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165402 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean whitespaces.Nadav Rotem2012-07-24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160668 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix 80-column violation.Chad Rosier2012-03-28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153556 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm::SwitchInstStepan Dyatkovskiy2012-03-11
| | | | | | | | | Renamed methods caseBegin, caseEnd and caseDefault with case_begin, case_end, and case_default. Added some notes relative to case iterators. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152532 91177308-0d34-0410-b5e6-96231b3b80d8
* Taken into account Duncan's comments for r149481 dated by 2nd Feb 2012:Stepan Dyatkovskiy2012-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20120130/136146.html Implemented CaseIterator and it solves almost all described issues: we don't need to mix operand/case/successor indexing anymore. Base iterator class is implemented as a template since it may be initialized either from "const SwitchInst*" or from "SwitchInst*". ConstCaseIt is just a read-only iterator. CaseIt is read-write iterator; it allows to change case successor and case value. Usage of iterator allows totally remove resolveXXXX methods. All indexing convertions done automatically inside the iterator's getters. Main way of iterator usage looks like this: SwitchInst *SI = ... // intialize it somehow for (SwitchInst::CaseIt i = SI->caseBegin(), e = SI->caseEnd(); i != e; ++i) { BasicBlock *BB = i.getCaseSuccessor(); ConstantInt *V = i.getCaseValue(); // Do something. } If you want to convert case number to TerminatorInst successor index, just use getSuccessorIndex iterator's method. If you want initialize iterator from TerminatorInst successor index, use CaseIt::fromSuccessorIndex(...) method. There are also related changes in llvm-clients: klee and clang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152297 91177308-0d34-0410-b5e6-96231b3b80d8
* SwitchInst refactoring.Stepan Dyatkovskiy2012-02-01
| | | | | | | | | | | | | | | | | | | | 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
* Continue improving support for ConstantDataAggregate, and use theChris Lattner2012-01-26
| | | | | | | new methods recently added to (sometimes greatly!) simplify code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149024 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove trailing spaces and unneeded includes.Jakub Staszak2012-01-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148415 91177308-0d34-0410-b5e6-96231b3b80d8
* Last bit of TargetLibraryInfo propagation. Also fixed a case for TargetDataChad Rosier2011-12-01
| | | | | | | where it appeared beneficial to pass. More of rdar://10500969 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145630 91177308-0d34-0410-b5e6-96231b3b80d8
* Get rid of an optimization in SCCP which appears to have many issues. ↵Eli Friedman2011-11-11
| | | | | | | | | | | | Specifically, it doesn't handle many cases involving undef correctly, and it is missing other checks which lead to it trying to re-mark a value marked as a constant with a different value. It also appears to trigger very rarely. Fixes PR11357. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144352 91177308-0d34-0410-b5e6-96231b3b80d8
* Make sure IPSCCP never marks a tracked call as overdefined in ↵Eli Friedman2011-09-20
| | | | | | | | | | SCCPSolver::ResolvedUndefsIn. If we do, we can end up in a situation where a function is resolved to return a constant, but the caller is marked overdefined, which confuses the code later. <rdar://problem/9956541> (again). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140210 91177308-0d34-0410-b5e6-96231b3b80d8
* Use Duncan's patch to delete the instructions in reverse order (minus the ↵Bill Wendling2011-09-04
| | | | | | landingpad and terminator). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139090 91177308-0d34-0410-b5e6-96231b3b80d8
* Update comments to reflect reality.Bill Wendling2011-09-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139023 91177308-0d34-0410-b5e6-96231b3b80d8
* Change worklist driven deletion to be an iterative process.Bill Wendling2011-09-01
| | | | | | | Duncan noticed this! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138967 91177308-0d34-0410-b5e6-96231b3b80d8
* Make sure we aren't deleting the landingpad instruction.Bill Wendling2011-08-31
| | | | | | | | | | The landingpad instruction is required in the landing pad block. Because we're not deleting terminating instructions, the invoke may still jump to here (see Transforms/SCCP/2004-11-16-DeadInvoke.ll). Remove all uses of the landingpad instruction, but keep it around until code-gen can remove the basic block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138890 91177308-0d34-0410-b5e6-96231b3b80d8
* Silly mistake from r137777; restore significant isStructTy() checks. While ↵Eli Friedman2011-08-17
| | | | | | | | | | | | here, be a bit more defensive with unknown instructions. Fixes PR10687. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137836 91177308-0d34-0410-b5e6-96231b3b80d8
* A bunch of misc fixes to SCCPSolver::ResolvedUndefsIn, including a fix to stopEli Friedman2011-08-16
| | | | | | | | | | | making random bad assumptions about instructions which are not explicitly listed. Includes fix for rdar://9956541, a version of "undef ^ undef should return 0 because it's easier than arguing with users". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137777 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor bug in SCCP found by inspection. (I don't think it's possible to hit ↵Eli Friedman2011-08-16
| | | | | | this with a normal pass pipeline, but fixing for completeness.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137755 91177308-0d34-0410-b5e6-96231b3b80d8
* Initial commit of the 'landingpad' instruction.Bill Wendling2011-08-12
| | | | | | | | | | | | | This implements the 'landingpad' instruction. It's used to indicate that a basic block is a landing pad. There are several restrictions on its use (see LangRef.html for more detail). These restrictions allow the exception handling code to gather the information it needs in a much more sane way. This patch has the definition, implementation, C interface, parsing, and bitcode support in it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137501 91177308-0d34-0410-b5e6-96231b3b80d8
* Add new atomic instructions to SCCP. No functional change, but stops debug ↵Eli Friedman2011-08-02
| | | | | | spam. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136723 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the 'resume' instruction for the new EH rewrite.Bill Wendling2011-07-31
| | | | | | | | | | This adds the 'resume' instruction class, IR parsing, and bitcode reading and writing. The 'resume' instruction resumes propagation of an existing (in-flight) exception whose unwinding was interrupted with a 'landingpad' instruction (to be added later). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136589 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r136253, r136263, r136269, r136313, r136325, r136326, r136329, r136338,Bill Wendling2011-07-30
| | | | | | | | | r136339, r136341, r136369, r136387, r136392, r136396, r136429, r136430, r136444, r136445, r136446, r136253 pending review. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136556 91177308-0d34-0410-b5e6-96231b3b80d8
* Merge the contents from exception-handling-rewrite to the mainline.Bill Wendling2011-07-27
| | | | | | | This adds the new instructions 'landingpad' and 'resume'. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136253 91177308-0d34-0410-b5e6-96231b3b80d8
* Misc mid-level changes for new 'fence' instruction.Eli Friedman2011-07-27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136205 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing space (this line is no longer pushing the 80-column limit).Nick Lewycky2011-07-25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135973 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert ConstantExpr::getGetElementPtr andJay Foad2011-07-21
| | | | | | | ConstantExpr::getInBoundsGetElementPtr to use ArrayRef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135673 91177308-0d34-0410-b5e6-96231b3b80d8
* move tier out of an anonymous namespace, it doesn't make senseChris Lattner2011-07-21
| | | | | | | | | to for it to be an an anon namespace and be in a header. Eliminate some extraenous uses of tie. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135669 91177308-0d34-0410-b5e6-96231b3b80d8
* Use ArrayRef in ConstantFoldInstOperands and ConstantFoldCall.Jay Foad2011-07-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135477 91177308-0d34-0410-b5e6-96231b3b80d8
* land David Blaikie's patch to de-constify Type, with a few tweaks.Chris Lattner2011-07-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135375 91177308-0d34-0410-b5e6-96231b3b80d8
* PR7952: Make isa<> use the same logic as cast<>, so that they both workEli Friedman2011-05-21
| | | | | | | | consistently. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131803 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a ton of comment typos found by codespell. Patch byChris Lattner2011-04-15
| | | | | | | | Luis Felipe Strano Moraes! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
* SCCP doesn't actually preserve the CFG. It will delete and insert terminatorNick Lewycky2011-01-21
| | | | | | | instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123973 91177308-0d34-0410-b5e6-96231b3b80d8
* simplify a littleChris Lattner2011-01-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123573 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid exponential growth of a table. It feels likeDale Johannesen2010-11-30
| | | | | | | | there should be a better way to do this. PR 8679. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120457 91177308-0d34-0410-b5e6-96231b3b80d8
* Get rid of static constructors for pass registration. Instead, every pass ↵Owen Anderson2010-10-19
| | | | | | | | | | | | | | | | | | exposes an initializeMyPassFunction(), which must be called in the pass's constructor. This function uses static dependency declarations to recursively initialize the pass's dependencies. Clients that only create passes through the createFooPass() APIs will require no changes. Clients that want to use the CommandLine options for passes will need to manually call the appropriate initialization functions in PassInitialization.h before parsing commandline arguments. I have tested this with all standard configurations of clang and llvm-gcc on Darwin. It is possible that there are problems with the static dependencies that will only be visible with non-standard options. If you encounter any crash in pass registration/creation, please send the testcase to me directly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116820 91177308-0d34-0410-b5e6-96231b3b80d8
* Now with fewer extraneous semicolons!Owen Anderson2010-10-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115996 91177308-0d34-0410-b5e6-96231b3b80d8
* remove some dead code.Chris Lattner2010-08-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111344 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR7876: If ipsccp decides that a function's address is takenChris Lattner2010-08-12
| | | | | | | before it rewrites the code, we need to use that in the post-rewrite pass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110962 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply r110396, with fixes to appease the Linux buildbot gods.Owen Anderson2010-08-06
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110460 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r110396 to fix buildbots.Owen Anderson2010-08-06
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110410 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't use PassInfo* as a type identifier for passes. Instead, use the ↵Owen Anderson2010-08-05
| | | | | | | | | address of the static ID member as the sole unique type identifier. Clean up APIs related to this change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110396 91177308-0d34-0410-b5e6-96231b3b80d8
* simplify by using CallSite constructors; virtually eliminates CallSite::get ↵Gabor Greif2010-07-28
| | | | | | from the tree git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109687 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix batch of converting RegisterPass<> to INTIALIZE_PASS().Owen Anderson2010-07-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109045 91177308-0d34-0410-b5e6-96231b3b80d8
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