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2009-08-31Extend the ValuesAtScope cache to cover all expressions, not justDan Gohman
SCEVUnknowns, as the non-SCEVUnknown cases in the getSCEVAtScope code can also end up repeatedly climing through the same expression trees, which can be unusably slow when the trees are very tall. Also, add a quick check for SCEV pointer equality to the main SCEV comparison routine, as the full comparison code can be expensive in the case of large expression trees. These fix compile-time problems in some pathlogical cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80623 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31restore semantics of operator* (removing a FIXME I had to introduce in r80224)Gabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80622 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Don't mark a register live at an undef use.David Goodwin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80621 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Introduce DIScope.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80620 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Oops. Fix inverted logic in assertion check.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80618 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Remove .n suffix for some 16-bit opcodes now that Darwin assembler is fixed.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80615 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31X86/exp-asm-printer: Lower MachineOperand::MO_JumpTableIndex to MCOperand.Daniel Dunbar
- Down to 7 failures on 403.gcc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80605 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Stop printing old asm printing code inline with -experimental-asm-printer ↵Daniel Dunbar
(this allows diffing and assembling the .s) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80604 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Avoid unnecessary +0 in experimental-asm-printer.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80603 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Simplify isDerivedType() and other predicate interface.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80602 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Output a hex value, because all of the others are hex.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80601 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Fix some misspellings of XTARGET.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80598 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Mark test as passing on all x86, which it should,Dale Johannesen
although I don't think anyone cares about this feature except Darwin. PR 4825. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80596 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31cleanups pointed out by duncanChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80595 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Revert commit 80428. It completely broke exceptionDuncan Sands
handling on x86-32 linux. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80592 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Free the constants that have no uses in ~LLVMContext.Torok Edwin
This fixes leaks from LLVMContext in multithreaded apps. Since constants are only deleted if they have no uses, it is safe to not delete a Module on shutdown, as many single-threaded tools do. Multithreaded apps should however delete the Module before destroying the Context to ensure that there are no leaks (assuming they use a different context for each thread). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80590 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Fix ExplicitSymbols leak.Torok Edwin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80589 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Normalize makefile comments and sort cmake file lists.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80584 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31llvm-mc: Pass values to MCStreamer as MCExprs, not MCValues.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80578 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31llvm-mc: Simplify EmitAssignment ('.set' is identical to '=').Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80577 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31llvm-mc: Remove MCAsmParser::Parse[Paren]RelocatableExpression.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80576 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31llvm-mc: Switch MCInst to storing an MCExpr* instead of an MCValue.Daniel Dunbar
Also, use MCInst::print instead of custom code in MCAsmPrinter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80575 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31llvm-mc: Add MCAsmParser::Parse[Paren]Expression forms which return an MCExpr.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80574 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31llvm-mc: Make MCSymbolData symbol member const.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80573 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31llvm-mc: Add MCContext to MCAssembler.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80572 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31llvm-mc: Add MCAsmParser::getContext.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80571 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31llvm-mc: Add MCExpr::{dump,print}.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80570 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31llvm-mc: Switch MCExpr construction to using static member functions, and ↵Daniel Dunbar
taking the MCContext (which now owns all MCExprs). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80569 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31llvm-mc: Add some doxyment markers.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80568 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31llvm-mc: Move AsmExpr into MC lib (as MCExpr).Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80567 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Step #1 to giving Callgraph some sane invariants. The problems with callgraphChris Lattner
stem from the fact that we have two types of passes that need to update it: 1. callgraphscc and module passes that are explicitly aware of it 2. Functionpasses (and loop passes etc) that are interlaced with CGSCC passes by the CGSCC Passmgr. In the case of #1, we can reasonably expect the passes to update the call graph just like any analysis. However, functionpasses are not and generally should not be CG aware. This has caused us no end of problems, so this takes a new approach. Logically, the CGSCC Pass manager can rescan every function after it runs a function pass over it to see if the functionpass made any updates to the IR that affect the callgraph. This allows it to catch new calls introduced by the functionpass. In practice, doing this would be slow. This implementation keeps track of whether or not the current scc is dirtied by a function pass, and, if so, delays updating the callgraph until it is actually needed again. This was we avoid extraneous rescans, but we still have good invariants when the callgraph is needed. Step #2 of the "give Callgraph some sane invariants" is to change CallGraphNode to use a CallBackVH for the callsite entry of the CallGraphNode. This way we can immediately remove entries from the callgraph when a FunctionPass is active instead of having dangling pointers. The current pass tries to tolerate these dangling pointers, but it is just an evil hack. This is related to PR3601/4835/4029. This also reverts r80541, a hack working around the sad lack of invariants. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80566 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31fix some cases where instcombine would change hte IR but not return trueChris Lattner
from runOnFunction git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80562 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31cleanups, factor some code out to a helper functionChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80542 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31fix a crash building SPASS by tolerating a callsite that doesn't existChris Lattner
in the callgraph, see the big comment at the top of the testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80541 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31comment and simplify some code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80540 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31add -debug outputChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80539 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31improve -debug output, so that -debug is more likely to print whenChris Lattner
instcombine is changing stuff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80538 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31fix a bug I introduced with my 'instcombine builder' refactoring Chris Lattner
changes: SimplifyDemandedBits can't use the builder yet because it has the wrong insertion point. This fixes a crash building MultiSource/Benchmarks/PAQ8p git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31simplify some code by making the SCCNodes set contain Function*'sChris Lattner
instead of CallGraphNode*'s. This also papers over a callgraph problem where a pass (in this case, MemCpyOpt) introduces a new function into the module (llvm.memset.i64) but doesn't add it to the call graph (nor should it, since it is a function pass). While it might be a good idea for MemCpyOpt to not synthesize functions in a runOnFunction(), there is no need for FunctionAttrs to be boneheaded, so fix it there. This fixes an assertion building 176.gcc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80535 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31only print the override triple if it exists!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80534 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Fix PR4834, a tricky case where the inliner would resolve anChris Lattner
indirect function pointer, inline it, then go to delete the body. The problem is that the callgraph had other references to the function, though the inliner had no way to know it, so we got a dangling pointer and an invalid iterator out of the deal. The fix to this is pretty simple: stop the inliner from deleting the function by knowing that there are references to it. Do this by making CallGraphNodes contain a refcount. This requires moving deletion of available_externally functions to the module-level cleanup sweep where it belongs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80533 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31use an accessor instead of poking internals of a node.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80532 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31CMake: updated library dependencies.Oscar Fuentes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80531 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31PR4747Jim Grosbach
Shared landing pads run into trouble with SJLJ, as the dispatch table is mapped to call sites, and merging the pads will throw that off. There needs to be a one-to-one mapping of landing pad exception table entries to invoke call points. Detecting the shared pad during lowering of SJLJ info insn't sufficient, as the dispatch function may still need separate destinations to properly handle phi-nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80530 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31update unit test for previous change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80528 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Fix some nasty callgraph dangling pointer problems in Chris Lattner
argpromotion and structretpromote. Basically, when replacing a function, they used the 'changeFunction' api which changes the entry in the function map (and steals/reuses the callgraph node). This has some interesting effects: first, the problem is that it doesn't update the "callee" edges in any callees of the function in the call graph. Second, this covers for a major problem in all the CGSCC pass stuff, which is that it is completely broken when functions are deleted if they *don't* reuse a CGN. (there is a cute little fixme about this though :). This patch changes the protocol that CGSCC passes must obey: now the CGSCC pass manager copies the SCC and preincrements its iterator to avoid passes invalidating it. This allows CGSCC passes to mutate the current SCC. However multiple passes may be run on that SCC, so if passes do this, they are now required to *update* the SCC to be current when they return. Other less interesting parts of this patch are that it makes passes update the CG more directly, eliminates changeFunction, and requires clients of replaceCallSite to specify the new callee CGN if they are changing it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80527 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-30Fix header comment for bindings/ocaml/llvm/Makefile.Erick Tryzelaar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80526 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-30Make sure we specify no arguments for context functions.Erick Tryzelaar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80525 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-30add a dump() method on callgraph.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80524 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-30rename testChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80523 91177308-0d34-0410-b5e6-96231b3b80d8
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