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2010-08-30The value is offset from the start of the section for non-common symbols, ↵Benjamin Kramer
submitted by Jordan Gordeev. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112473 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Index external symbols by symbol table instead of parent section, by Roman ↵Benjamin Kramer
Divacky. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112472 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Mark all common symbols external. This is not exactly correct but it lets appsBenjamin Kramer
link for now and can be adjusted later. Patch by Roman Divacky. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112471 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Remove a hack that tries to understand incorrect triples from theDuncan Sands
Triple class constructor. Only valid triples should now be used inside LLVM - front-ends are now responsable for rejecting or correcting invalid target triples. The Triple::normalize method can be used to straighten out funky triples provided by users. Give this a whirl through the buildbots to see if I caught all places where triples enter LLVM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112470 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Revert r112461. It was failing on PPC...Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112463 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Create Thumb2sI_cpsr and T2sI_cpsr. These new classes indicate that CPSR is theBill Wendling
optional modified register (instead of reg0). Along with r112461 it will make sure that the optional define of CPSR is marked as "def" and will thus mark the instructions using these classes (t2ANDS*) as setting the 's' flag. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112462 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30When adding a register, we should mark it as "def" if it can optionally defineBill Wendling
said (physical) register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112461 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29revert 112457, it looks like it broke selfhost.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112459 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29rewrite DwarfEHPrepare to use SSAUpdater to promote its allocasChris Lattner
instead of PromoteMemToReg. This allows it to stop using DF and DT, eliminating a computation of DT and DF from clang -O3. Clang is now down to 2 runs of DomFrontier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112457 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29inline function into its only caller.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112455 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29two changes: 1) make AliasSet hold the list of call sites with anChris Lattner
assertingvh so we get a violent explosion if the pointer dangles. 2) Fix AliasSetTracker::deleteValue to remove call sites with by-pointer comparisons instead of by-alias queries. Using findAliasSetForCallSite can cause alias sets to get merged when they shouldn't, and can also miss alias sets when the call is readonly. #2 fixes PR6889, which only repros with a .c file :( git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112452 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29LICM does get dead instructions input to it. Instead of sinking themChris Lattner
out of loops, just delete them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112451 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29use moveBefore instead of remove+insert, it avoids some Chris Lattner
symtab manipulation, so its faster (in addition to being more elegant) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112450 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29revert 112448 for now.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112449 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29optimize LICM::hoist to use moveBefore. Correct its updatingChris Lattner
of AST to remove the hoisted instruction from the AST, since it is no longer in the loop. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112448 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29fix some bugs (found by inspection) where LICM would not updateChris Lattner
LICM correctly. When sinking an instruction, it should not add entries for the sunk instruction to the AST, it should remove the entry for the sunk instruction. The blocks being sunk to are not in the loop, so their instructions shouldn't be in the AST (yet)! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112447 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29rework the ownership of subloop alias information: instead ofChris Lattner
keeping them around until the pass is destroyed, keep them around a) just when useful (not for outer loops) and b) destroy them right after we use them. This should reduce memory use and fixes potential bugs where a loop is deleted and another loop gets allocated to the same address. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112446 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29apparently unswitch had the same "Feature". Stop itsChris Lattner
claims that it preserves domfrontier if it doesn't really. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112445 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29now that loop passes don't use DomFrontier, there is no reasonChris Lattner
for the unroller to pretend it supports updating it. It still has a horrible hack for DomTree. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112444 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Make IVUsers iterative instead of recursive.Dan Gohman
This has the side effect of reversing the order of most of IVUser's results. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112442 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Optionally rerun dedicated-register filtering after applyingDan Gohman
other filtering techniques, as those may allow it to filter out more obviously unprofitable candidates. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112441 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Fix several areas in LSR to do a better job keeping the mainDan Gohman
LSRInstance data structures up to date. This fixes some pessimizations caused by stale data which will be exposed in an upcoming change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112440 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Refactor the three main groups of code out ofDan Gohman
NarrowSearchSpaceUsingHeuristics into separate functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112439 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Delete a bogus check.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112438 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Add some comments.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112437 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Move this debug output into GenerateAllReuseFormula, to declutterDan Gohman
the high-level logic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112436 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Delete an unused declaration.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112435 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Do one lookup instead of two.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112434 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Restructure the {A,+,B}<L> * {C,+,D}<L> folding so that it foldsDan Gohman
all applicable addrecs before recursing on getMulExpr, instead of recursing on getMulExpr for each one. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112433 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Batch up subtracts along with adds, when analyzing long chains ofDan Gohman
operations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112432 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Micro-optimize GroupByComplexity.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112431 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Hold AddRec->getLoop() in a variable, to make the Mul code more consistentDan Gohman
with the Add code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112430 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Rename a variable, for consistency.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112429 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Use iterators instead of indices.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112428 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Fix lowering of INSERT_VECTOR_ELT in SPU. Kalle Raiskila
The IDX was treated as byte index, not element index. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112422 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Fix whitespaces. No functionality changes.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112421 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29licm preserves the cfg, it doesn't have to explicitly say itChris Lattner
preserves domfrontier. It does preserve AA though. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112419 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29now that it doesn't use the PromoteMemToReg function, LICM doesn'tChris Lattner
require DomFrontier. Dropping this doesn't actually save any runs of the pass though. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112418 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29completely rewrite the memory promotion algorithm in LICM.Chris Lattner
Among other things, this uses SSAUpdater instead of PromoteMemToReg. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112417 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Remove NEON vaddl, vaddw, vsubl, and vsubw intrinsics. Instead, use llvmBob Wilson
IR add/sub operations with one or both operands sign- or zero-extended. Auto-upgrade the old intrinsics. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112416 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29use getUniqueExitBlocks instead of a manual set.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112412 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29A couple of small missed optimizations.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112411 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29reimplement LICM::sink to use SSAUpdater instead of PromoteMemToReg.Chris Lattner
This leads to much simpler code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112410 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29implement SSAUpdater::RewriteUseAfterInsertions, a helpful form of RewriteUse.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112409 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29remove dead protoChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112408 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29reduce indentation in LICM::sink by using early exits, useChris Lattner
getUniqueExitBlocks instead of getExitBlocks and a manual set to eliminate dupes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112405 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29modernize this pass a bit: use efficient set/map and reduce indentation.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112404 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29when merging two alias sets, the result set is volatile if eitherChris Lattner
of the sets is volatile. We were dropping the volatile bit of the merged in set, leading (luckily) to assertions in cases like PR7535. I cannot produce a testcase that repros with opt, but this is obviously correct. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112402 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29more cleanupChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112401 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29clean this upChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112400 91177308-0d34-0410-b5e6-96231b3b80d8
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