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2012-02-22Efficient pattern for store truncate. Patch by Evandro Menezes.Sirish Pande
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151166 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Add Foreach LoopDavid Greene
Add some data structures to represent for loops. These will be referenced during object processing to do any needed iteration and instantiation. Add foreach keyword support to the lexer. Add a mode to indicate that we're parsing a foreach loop. This allows the value parser to early-out when processing the foreach value list. Add a routine to parse foreach iteration declarations. This is separate from ParseDeclaration because the type of the named value (the iterator) doesn't match the type of the initializer value (the value list). It also needs to add two values to the foreach record: the iterator and the value list. Add parsing support for foreach. Add the code to process foreach loops and create defs based on iterator values. Allow foreach loops to be matched at the top level. When parsing an IDValue check if it is a foreach loop iterator for one of the active loops. If so, return a VarInit for it. Add Emacs keyword support for foreach. Add VIM keyword support for foreach. Add tests to check foreach operation. Add TableGen documentation for foreach. Support foreach with multiple objects. Support non-braced foreach body with one object. Do not require types for the foreach declaration. Assume the iterator type from the iteration list element type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151164 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Remove static ctor.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151160 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Support was removed from LLVM's MIPS backend for the PSP variant of thatChandler Carruth
chip in r139383, and the PSP components of the triple are really annoying to parse. Let's leave this chapter behind. There is no reason to expect LLVM to see a PSP-related triple these days, and so no reasonable motivation to support them. It might be reasonable to prune a few of the older MIPS triple forms in general, but as those at least cause no burden on parsing (they aren't both a chip and an OS!), I'm happy to leave them in for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151156 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Only add DW_AT_prototyped if we're working with a C-like language.Eric Christopher
Worth another 45k (1%) off of a large C++ testcase. rdar://10909458 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151144 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Add the source language into the compile unit.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151143 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Remove extra semi-colon.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151142 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Declare register classes as const. Fix a couple pointers to register classes ↵Craig Topper
that weren't already const. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151138 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22misched: DAG builder should not track dependencies for SSA defs.Andrew Trick
The vast majority of virtual register definitions don't need an entry in the DAG builder's VRegDefs set. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151136 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Initialize SUnits before DAG building.Andrew Trick
Affect on SD scheduling and postRA scheduling: Printing the DAG will display the nodes in top-down topological order. This matches the order within the MBB and makes my life much easier in general. Affect on misched: We don't need to track virtual register uses at all. This is awesome. I also intend to rely on the SUnit ID as a topo-sort index. So if A < B then we cannot have an edge B -> A. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151135 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Make all pointers to TargetRegisterClass const since they are all pointers ↵Craig Topper
to static data that should not be modified. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151134 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Improve comment. Thanks for Andrew for the suggestion.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151127 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Semantically revert 151015. Add a comment on why we should be able to assertRafael Espindola
the dominance once the dominates method is fixed and why we can use the builder's insertion point. Fixes pr12048. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151125 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Adding support for Microsoft's thiscall calling convention. LLVM side of ↵Aaron Ballman
the patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151123 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Clarify ARM calling conventions.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151113 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Use SparseSet for the RAFast live virtual register map.Jakob Stoklund Olesen
This makes RAFast 4% faster, and it gets rid of the dodgy DenseMap iteration. This also revealed that RAFast would sometimes dereference DenseMap iterators after erasing other elements from the map. That does seem to work in the current DenseMap implementation, but SparseSet doesn't allow it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151111 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Use a function in MathExtras to do sign extension.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151107 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Calls don't really change the stack pointer.Jakob Stoklund Olesen
Even if a call instruction has %SP<imp-def> operands, it doesn't change the value of the stack pointer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151104 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Add API "handleMoveIntoBundl" for updating liveness when moving instructions ↵Lang Hames
into bundles. This method takes a bundle start and an MI being bundled, and makes the intervals for the MI's operands appear to start/end on the bundle start. Also fixes some minor cosmetic issues (whitespace, naming convention) in the HMEditor code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151099 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21There's no need for a DW_AT_byte_size on a pointer type.Eric Christopher
Part of rdar://10493979 where it reduces by about .5% (10k) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151097 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Use the target-aware constant folder on expressions to improve the chanceNick Lewycky
they'll be simple enough to simulate, and to reduce the chance we'll encounter equal but different simple pointer constants. This removes the symptoms from PR11352 but is not a full fix. A proper fix would either require a guarantee that two constant objects we simulate are folded when equal, or a different way of handling equal pointers (ie., trying a constantexpr icmp on them to see whether we know they're equal or non-equal or unsure). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151093 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Proper support for a bastardized darwin-eabi hybird ABI.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151083 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21s/the the/the/Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151079 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Fix unsigned off-by-one in comment.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151056 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21InstCombine: Don't transform a signed icmp of two GEPs into a signed compare ↵Benjamin Kramer
of the indices. This transformation is not safe in some pathological cases (signed icmp of pointers should be an extremely rare thing, but it's valid IR!). Add an explanatory comment. Kudos to Duncan for pointing out this edge case (and not giving up explaining it until I finally got it). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151055 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Move the implementation of StringRef::split out of StringExtras.cppDuncan Sands
and into StringRef.cpp, which is where the other StringRef stuff is. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151054 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Revert r151049 cos it broke the buildbots.Jay Foad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151052 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Tiny cosmetic change to use the same style for all of the while loops inChandler Carruth
the normalize routine, especially the empty while loops. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151050 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21PR1210: make uniquing of struct and function types more efficient byJay Foad
using a DenseMap and Talin's new GeneralHash, avoiding the need for a temporary std::vector on every lookup. Patch by Meador Inge! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151049 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Replace a hand rolled loop with a lovely StringRef helper we have theseChandler Carruth
days. No functionality changed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151048 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Pull the parsing helper functions out of the Triple interface entirely.Chandler Carruth
They're private static methods but we can just make them static functions in the implementation. It makes the implementations a touch more wordy, but takes another chunk out of the header file. Also, take the opportunity to switch the names to the new coding conventions. No functionality changed here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151047 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Clean up comments that I missed when changing the triple representation.Chandler Carruth
Somehow, I even missed the ones I wrote just the other day... Thanks to Matt for the code review. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151045 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Clear virtual registers after they are no longer referenced.Andrew Trick
Passes after RegAlloc should be able to rely on MRI->getNumVirtRegs() == 0. This makes sharing code for pre/postRA passes more robust. Now, to check if a pass is running before the RA pipeline begins, use MRI->isSSA(). To check if a pass is running after the RA pipeline ends, use !MRI->getNumVirtRegs(). PEI resets virtual regs when it's done scavenging. PTX will either have to provide its own PEI pass or assign physregs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151032 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21StackSlotColoring does not use a VirtRegMapAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151031 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Use more idiomatic assert.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151026 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Avoid warning on non assert builds.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151025 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Switch the llvm::Triple class to immediately parse the triple string onChandler Carruth
construction. Simplify its interface, implementation, and users accordingly as there is no longer an 'uninitialized' state to check for. Also, fixes a bug lurking in the interface as there was one method that didn't correctly check for initialization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151024 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21It turns out that with the current scev organization ReuseOrCreateCast cannotRafael Espindola
know where users will be added. Because of this, it cannot use Builder.GetInsertPoint at all. This patch * removes the FIXME about adding the assert. * adds a comment explaining hy we don't have one. * removes a broken logic that only works for some callers and is not needed since r150884. * adds an assert to caller that would have caught the bug fixed by r150884. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151015 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Fix some bugs in HMEditor's moveAllOperandsInto logic.Lang Hames
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151006 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-20Check for the correct size in the invariant marker.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151003 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-20Fix machine-cp by having it to check sub-register indicies. e.g.Evan Cheng
ecx = mov eax al = mov ch The second copy is not a nop because the sub-indices of ecx,ch is not the same of that of eax/al. Re-enabled machine-cp. PR11940 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151002 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-20Fix 80-column violation.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150998 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-20InstCombine: Removing the base from the address calculation is only safe ↵Benjamin Kramer
when the GEPs are inbounds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150978 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-20Make this a bit prettier and more obvious when a derived type isn'tEric Christopher
derived from anything. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150975 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-20If a derived type is also a composite type, print that informationEric Christopher
too. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150974 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-20Add support for runtime languages on our forward declarations.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150973 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-20InstCombine: When comparing two GEPs that were derived from the same base ↵Benjamin Kramer
pointer but use different types, expand the offset calculation and to the compare on the offset if profitable. This came up in SmallVector code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150962 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-20InstCombine: Make OptimizePointerDifference more aggressive.Benjamin Kramer
- Ignore pointer casts. - Also expand GEPs that aren't constantexprs when they have one use or only constant indices. - We now compile "&foo[i] - &foo[j]" into "i - j". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150961 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-20Teach the DAGCombiner that certain loadext nodes followed by ANDs can be ↵James Molloy
converted to zeroexts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150957 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-20Improve generated code for extending loads and some trunc stores on ARM.James Molloy
Teach TargetSelectionDAG about lengthening loads for vector types and set v4i8 as legal. Allow FP_TO_UINT for v4i16 from v4i32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150956 91177308-0d34-0410-b5e6-96231b3b80d8
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