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2010-08-30Re-apply r112539, being more careful to respect the return values of the ↵Owen Anderson
constant folding methods. Additionally, use the ConstantExpr::get*() methods to simplify some constant folding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112550 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Expand MOVi32imm in ARM mode after regalloc. This providesAnton Korobeynikov
scheduling opportunities (extra instruction can go in between MOVT / MOVW pair removing the stall). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112546 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Add statistics to evaluate this pass.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112545 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Revert r112539. It accidentally introduced a miscompilation.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112543 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Fixes and cleanups pointed out by Chris. In general, be careful to handle 0 ↵Owen Anderson
results from ComputeValueKnownInPredecessors (indicating undef), and re-use existing constant folding APIs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112539 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Use the existing T2I_bin_s_irs pattern instead of creating T2I_bin_sw_irs, whichBill Wendling
is meant to do exactly the same thing. Thanks to Jim Grosbach for pointing this out! :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112538 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Fix a comment.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112535 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Remember to clear the shadow kill flag at the same time as clearing the realJakob Stoklund Olesen
kill flag. This could cause duplicate kill flags when the same register was used twice in a continuous sequence of STRs. There is no small test case. <rdar://problem/8218046> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112534 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Fix llc to run the verifier once, not twice.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112532 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Remove this from the main tree. I'll host it out of tree.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112529 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Add comments explaining why it's not necessary to include theDan Gohman
is-function-local flag in metadata uniquing bits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112528 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Remove NEON vmovn intrinsic, replacing it with vector truncate operations.Bob Wilson
Auto-upgrade the old intrinsic and update tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112507 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Make ARM add rN, sp, #imm instructions rematerializable. That's how the ↵Jim Grosbach
address of locals is calculated, so this should help relieve register pressure a bit. Recalculating the local address is almost always going to be better than spilling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112503 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Fix LLVM target initialization to deal with sociopathic outside projectsEric Christopher
that like to randomly define things like "X86", regenerate autoconf bits and update cmake. Fixes PR7852. Patch by Xerxes Rånby! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112499 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Kill a couple of unused variables.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112498 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30nuke dead ivar which was supposed to be committed with r112496Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112497 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30two changes:Chris Lattner
1) nuke ConstDataCoalSection, which is dead. 2) revise my previous patch for rdar://8018335, which was completely wrong. Specifically, it doesn't make sense to mark __TEXT,__const_coal as PURE_INSTRUCTIONS, because it is for readonly data. templates (it turns out) go to const_coal_nt. The real fix for rdar://8018335 was to give ConstTextCoalSection a section kind of ReadOnly instead of Text. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112496 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30When expanding NEON VST pseudo instructions, if the original super-registerBob Wilson
operand is killed, add it to the expanded instruction as an implicit kill operand instead of marking the individual subregs with kill flags. This should work better in general and also handles the case for VST3 where one of the subregs was not referenced in the expanded instruction and so was not marked killed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112494 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30MCELF: The value of all common symbols is the offset from the start of the ↵Benjamin Kramer
section. Patch by Roman Divacky. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112492 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30It is possible to try to merge a not-constant with a constantrage, when ↵Owen Anderson
dealing with ptrtoint ConstantExpr's. Unfortunately, the only testcase I have for this is huge and doesn't reduce well because the error is sensitive to iteration-order issues, since the problem only occurs when merging values in a particular order. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112489 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Partially revert r112480. Caused test failures.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112486 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30coff-dump.py: Fix PR7996. Now it is compatible to Python-2.4.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112485 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Fix constant-over-index.ll test on windows.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112483 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Test: Fix LLVMC tests on CMake.Michael J. Spencer
The CMake build didn't define TEST_COMPILE_CXX_CMD. The tests assumed gcc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112480 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Don't print two "0x" prefixes. Use a raw_ostream overload instead of ↵Benjamin Kramer
llvm::format. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112479 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30EE/JIT: Do not invoke parent's ctors/dtors from main()! (PR3897)NAKAMURA Takumi
On Mingw and Cygwin, the symbol __main is resolved to callee's(eg. tools/lli) one, to invoke wrong duplicated ctors (and register wrong callee's dtors with atexit(3)). We expect, by callee, ExecutionEngine::runStaticConstructorsDestructors() is called before ExecutionEngine::runFunctionAsMain() is called. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112474 91177308-0d34-0410-b5e6-96231b3b80d8
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
2010-08-30Correct bogus module triple specifications.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112469 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Add a new example to the LLVM distribution: a trace-based Brainfuck compiler ↵Owen Anderson
that uses LLVM as its code generator. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112465 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Attempt to remove the MSIL backend from CMake as well based on Chris's r112375.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112464 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
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