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2012-02-03Tidy up. Trailing whitespace.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149649 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-03Restrict InstCombine from converting varargs to or from fixed args.Jim Grosbach
More targetted fix replacing d0e277d272d517ca1cda368267d199f0da7cad95. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149648 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-03Revert "Disable InstCombine unsafe folding bitcasts of calls w/ varargs."Jim Grosbach
This reverts commit d0e277d272d517ca1cda368267d199f0da7cad95. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149647 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-02BBVectorize: Simplify code, no functionality change.Benjamin Kramer
Also silences warnings about bodyless for loops. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149612 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-02Minor changes from review.Hal Finkel
As suggested by Nick Lewycky, the tree traversal queues have been changed to SmallVectors and the associated loops have been rotated. Also, an 80-col violation was fixed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149607 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-02Vectorize long blocks in groups.Hal Finkel
Long basic blocks with many candidate pairs (such as in the SHA implementation in Perl 5.14; thanks to Roman Divacky for the example) used to take an unacceptably-long time to compile. Instead, break long blocks into groups so that no group has too many candidate pairs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149595 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-01SwitchInst refactoring.Stepan Dyatkovskiy
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
2012-02-01BBVectorize.cpp: Try to fix MSVC build. map::iterator and multimap::iterator ↵NAKAMURA Takumi
are incompatible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149475 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-01A few of the changes suggested in code review (by Nick Lewycky)Hal Finkel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149472 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-01Revert Chris' commits up to r149348 that started causing VMCoreTests unit ↵Argyrios Kyrtzidis
test to fail. These are: r149348 r149351 r149352 r149354 r149356 r149357 r149361 r149362 r149364 r149365 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149470 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-01Add a basic-block autovectorization pass.Hal Finkel
This is the initial checkin of the basic-block autovectorization pass along with some supporting vectorization infrastructure. Special thanks to everyone who helped review this code over the last several months (especially Tobias Grosser). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149468 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-01Disable InstCombine unsafe folding bitcasts of calls w/ varargs.Jim Grosbach
Changing arguments from being passed as fixed to varargs is unsafe, as the ABI may require they be handled differently (stack vs. register, for example). Remove two tests which rely on the bitcast being folded into the direct call, which is exactly the transformation that's unsafe. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149457 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31bz11794 : EarlyCSE stack overflow on long functions.Lenny Maiorani
Make the EarlyCSE optimizer not use recursion to do a depth first iteration. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149445 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31Increase the initial vector size to be equivalent to the size of the DepsBill Wendling
vector. This potentially saves a resizing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149369 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31Cache the size of the vector instead of calling .size() all over the place.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149368 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31eliminate the "string" form of ConstantArray::get, usingChris Lattner
ConstantDataArray::getString instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149365 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31eliminate the last uses of GetConstantStringInfo from this file, I didn't ↵Chris Lattner
realize I was that close... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149354 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31start moving SimplifyLibcalls over to getConstantStringInfo, which isChris Lattner
dramatically more efficient than GetConstantStringInfo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149352 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31enhance logic to support ConstantDataArray.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149340 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31s/getInnerUnwindDest/getInnerResumeDest/gBill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149328 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31Remove ivar which is identical to another ivar.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149323 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31Remove unused ivars and s/getOuterUnwindDest/getOuterResumeDest/g.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149322 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31Remove more dead functions.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149318 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31s/getInnerUnwindDestNewEH/getInnerUnwindDest/gBill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149317 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31Remove some unused, old-EH methods.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149316 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31Get rid of references to dead intrinsics.Bill Wendling
The eh.selector and eh.resume intrinsics aren't used anymore. Get rid of some calls to them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149314 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31Formatting cleanups. No functionality change.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149312 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31Remove no-longer-useful dyn_casts and pals.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149307 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-30[asan] fix the ObjC support (asan Issue #33)Kostya Serebryany
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149300 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-30Typo.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149289 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-30Typo.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149275 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-30Fix compilation of ASan tests on OS X Lion (see ↵Alexander Potapenko
http://code.google.com/p/address-sanitizer/issues/detail?id=32) The redzones emitted by AddressSanitizer for CFString instances confuse the linker and are of little use, so we shouldn't add them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149243 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-28Fix typo.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149185 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-28[asan] correctly use ConstantExpr::getGetElementPtr. Catch by NAKAMURA TakumiKostya Serebryany
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149172 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-27continue making the world safe for ConstantDataVector. At this point,Chris Lattner
we should (theoretically optimize and codegen ConstantDataVector as well as ConstantVector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149116 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-26Continue improving support for ConstantDataAggregate, and use theChris Lattner
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
2012-01-26some general cleanup, using new methods and tidying up old code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149006 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-25Gracefully degrade precision in branch probability numbers.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148946 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-25use Constant::getAggregateElement to simplify a bunch of code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148934 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-25use ConstantVector::getSplat in a few places.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148929 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-24[asan] enable asan only for the functions that have Attribute::AddressSafetyKostya Serebryany
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148846 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-24basic instcombine support for CDS.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148806 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-23Implemented AddressSanitizer::getPassName()Alexander Potapenko
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148697 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20More dead code removal (using -Wunreachable-code)David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148578 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20Handle a corner case with IV chain collection with bailout instead of assert.Andrew Trick
Fixes PR11783: bad cast to AddRecExpr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148572 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20Extend Attributes to 64 bitsKostya Serebryany
Problem: LLVM needs more function attributes than currently available (32 bits). One such proposed attribute is "address_safety", which shows that a function is being checked for address safety (by AddressSanitizer, SAFECode, etc). Solution: - extend the Attributes from 32 bits to 64-bits - wrap the object into a class so that unsigned is never erroneously used instead - change "unsigned" to "Attributes" throughout the code, including one place in clang. - the class has no "operator uint64 ()", but it has "uint64_t Raw() " to support packing/unpacking. - the class has "safe operator bool()" to support the common idiom: if (Attributes attr = getAttrs()) useAttrs(attr); - The CTOR from uint64_t is marked explicit, so I had to add a few explicit CTOR calls - Add the new attribute "address_safety". Doing it in the same commit to check that attributes beyond first 32 bits actually work. - Some of the functions from the Attribute namespace are worth moving inside the class, but I'd prefer to have it as a separate commit. Tested: "make check" on Linux (32-bit and 64-bit) and Mac (10.6) built/run spec CPU 2006 on Linux with clang -O2. This change will break clang build in lib/CodeGen/CGCall.cpp. The following patch will fix it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148553 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20SCEVExpander fixes. Affects LSR and indvars.Andrew Trick
LSR has gradually been improved to more aggressively reuse existing code, particularly existing phi cycles. This exposed problems with the SCEVExpander's sloppy treatment of its insertion point. I applied some rigor to the insertion point problem that will hopefully avoid an endless bug cycle in this area. Changes: - Always used properlyDominates to check safe code hoisting. - The insertion point provided to SCEV is now considered a lower bound. This is usually a block terminator or the use itself. Under no cirumstance may SCEVExpander insert below this point. - LSR is reponsible for finding a "canonical" insertion point across expansion of different expressions. - Robust logic to determine whether IV increments are in "expanded" form and/or can be safely hoisted above some insertion point. Fixes PR11783: SCEVExpander assert. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148535 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19Set the "tail" flag on pattern-matched objc_storeStrong calls.Dan Gohman
rdar://10531041. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148490 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19Actually, this code handles wrapped sets just fine. Noticed by inspection.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148487 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18Add a depth limit to avoid runaway recursion.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148419 91177308-0d34-0410-b5e6-96231b3b80d8
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