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2008-09-04Tidy up several unbeseeming casts from pointer to intptr_t.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55779 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03Initial version of a Partial Specialization IPO pass. It triggers a couple ↵Andrew Lenharth
hundred times on 176.gcc. I don't know the performance impact yet, the heuristic is quite simple still. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55734 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03Add missing decls.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55719 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-01Add a small pass that sets the readnone/readonlyDuncan Sands
attributes on functions, based on the result of alias analysis. It's not hardwired to use GlobalsModRef even though this is the only (AFAIK) alias analysis that results in this pass actually doing something. Enable as follows: opt ... -globalsmodref-aa -markmodref ... Advantages of this pass: (1) records the result of globalsmodref in the bitcode, meaning it is available for use by later passes (currently the pass manager isn't smart enough to magically make an advanced alias analysis available to all later passes), which may expose more optimization opportunities; (2) hopefully speeds up compilation when code is optimized twice, for example when a file is compiled to bitcode, then later LTO is done on it: marking functions readonly/readnone when producing the initial bitcode should speed up alias analysis during LTO; (3) good for discovering that globalsmodref doesn't work very well :) Not currently turned on by default. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55604 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-23Add a new trivial -inst-namer pass which makes it possible to diff theChris Lattner
before/after effects of a pass, crazy! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55230 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-15Remove GCSE, ValueNumbering, and LoadValueNumbering. These have been ↵Owen Anderson
deprecated for almost a year; it's finally time for them to go away. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54822 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-17Make MergeBlockIntoPredecessor more aggressive when the same successor appearsOwen Anderson
more than once. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53731 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-17Factor MergeBlockIntoPredecessor out into BasicBlockUtils.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53705 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-16Correct a top-level comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53685 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-14Reapply r53540, now with the matching header!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53557 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-14whitespace fix.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53537 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-14doxygenate comments and wrap to 80 cols.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53536 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-07Add explicit keywords.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53179 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-26Add missing semicolumn in my last commit.Matthijs Kooijman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52780 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-26Improve comments wrt createInternalize.Matthijs Kooijman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52779 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-24Rename a few variables to be more consistent.Matthijs Kooijman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52672 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30Revert 51775.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51795 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30Patches for building llvm on Solaris x86. Contributed by Nathan Keynes.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51775 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29Prune and tidy #includes.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51697 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14Simplify internalize pass. Add test case.Devang Patel
Patch by Matthijs Kooijman! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51114 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14Commit the header I accidentally left out of 51083.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51093 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14Whitespace cleanups.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51089 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13Change class' public PassInfo variables to by initialized with theDan Gohman
address of the PassInfo directly instead of calling getPassInfo. This eliminates a bunch of dynamic initializations of static data. Also, fold RegisterPassBase into PassInfo, make a bunch of its data members const, and rearrange some code to initialize data members in constructors instead of using setter member functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51022 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06Remove uses of llvm/System/IncludeFile.h that are no longer needed.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50695 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01Delete the IPO simplify-libcalls and completely reimplement it asChris Lattner
a FunctionPass. This makes it simpler, fixes dozens of bugs, adds a couple of minor features, and shrinks is considerably: from 2214 to 1437 lines. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50520 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29Rename DeadLoopElimination to LoopDeletion, part 2.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50437 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29Add dead loop elimination, which removes dead loops for which we can computeOwen Anderson
the trip count. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50382 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21Move SplitBlockPredecessors out of loopsimplify into BasicBlockUtils.hChris Lattner
as a global helper function. At the same type, switch it from taking a vector of predecessors to an arbitrary sequential input. This allows us to switch LoopSimplify to use a SmallVector for various temporary vectors that it passed into SplitBlockPredecessors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50020 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20Add a new Jump Threading pass, which will handle casesChris Lattner
such as those in PR2235. Right now the pass is not very effective. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50000 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19Allow argpromote to promote struct arguments with a specified numberChris Lattner
of elements. Patch by Matthijs Kooijman! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49962 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09Factor a bunch of functionality related to memcpy and memset transforms out of Owen Anderson
GVN and into its own pass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49419 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-24Increasing the inline limit from (overly conservative) 200 to 300. Given ↵Evan Cheng
each BB costs 20 and each instruction costs 5, 200 means a 4 BB function + 24 instructions (actually less because caller's size also contributes to it). Furthermore, double the limit when more than 10% of the callee instructions are vector instructions. Multimedia kernels tend to love inlining. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48725 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21FunctionExtractorPass has been superceded by GVExtractorPassAndrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48648 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-07add a pass that can extract all kinds of global values, not just functions. ↵Andrew Lenharth
Update llvm-extract to use it and optionally extract a global variable if you want it too git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48015 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-06fix typosGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47994 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-29Add pass to promote sret.Devang Patel
This pass transforms %struct._Point = type { i32, i32, i32, i32, i32, i32 } define internal void @foo(%struct._Point* sret %agg.result) into %struct._Point = type { i32, i32, i32, i32, i32, i32 } define internal %struct._Point @foo() This pass updates foo() clients appropriately to use getresult instruction to extract return values. This pass is not yet ready for prime time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47776 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-25prune #includes, fit in 80 cols.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47556 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-19remove the LowerSelect pass. The last client was the old Sparc backend, ↵Chris Lattner
which is long dead by now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47323 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-19remove the lower packed pass. It can never work and even the parts that Chris Lattner
could work don't work fully. This fixes PR1705. Oh yeah, we don't have packed types anymore either ;-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47322 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-27The CorrelatedExpressionElimination pass is known to be buggy. Remove it.Bill Wendling
This fixes PR1769. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46408 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-12Allow clients to specify the inline threshold when creatingChris Lattner
the inliner pass. Patch by Robert Zeh. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45903 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-11don't include loopinfo.h from this file.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45858 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07With this patch, the LowerGC transformation becomes theGordon Henriksen
ShadowStackCollector, which additionally has reduced overhead with no sacrifice in portability. Considering a function @fun with 8 loop-local roots, ShadowStackCollector introduces the following overhead (x86): ; shadowstack prologue movl L_llvm_gc_root_chain$non_lazy_ptr, %eax movl (%eax), %ecx movl $___gc_fun, 20(%esp) movl $0, 24(%esp) movl $0, 28(%esp) movl $0, 32(%esp) movl $0, 36(%esp) movl $0, 40(%esp) movl $0, 44(%esp) movl $0, 48(%esp) movl $0, 52(%esp) movl %ecx, 16(%esp) leal 16(%esp), %ecx movl %ecx, (%eax) ; shadowstack loop overhead (none) ; shadowstack epilogue movl 48(%esp), %edx movl %edx, (%ecx) ; shadowstack metadata .align 3 ___gc_fun: # __gc_fun .long 8 .space 4 In comparison to LowerGC: ; lowergc prologue movl L_llvm_gc_root_chain$non_lazy_ptr, %eax movl (%eax), %ecx movl %ecx, 48(%esp) movl $8, 52(%esp) movl $0, 60(%esp) movl $0, 56(%esp) movl $0, 68(%esp) movl $0, 64(%esp) movl $0, 76(%esp) movl $0, 72(%esp) movl $0, 84(%esp) movl $0, 80(%esp) movl $0, 92(%esp) movl $0, 88(%esp) movl $0, 100(%esp) movl $0, 96(%esp) movl $0, 108(%esp) movl $0, 104(%esp) movl $0, 116(%esp) movl $0, 112(%esp) ; lowergc loop overhead leal 44(%esp), %eax movl %eax, 56(%esp) leal 40(%esp), %eax movl %eax, 64(%esp) leal 36(%esp), %eax movl %eax, 72(%esp) leal 32(%esp), %eax movl %eax, 80(%esp) leal 28(%esp), %eax movl %eax, 88(%esp) leal 24(%esp), %eax movl %eax, 96(%esp) leal 20(%esp), %eax movl %eax, 104(%esp) leal 16(%esp), %eax movl %eax, 112(%esp) ; lowergc epilogue movl 48(%esp), %edx movl %edx, (%ecx) ; lowergc metadata (none) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45670 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-06back out accidental commit.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45660 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-06rename isStore -> mayStore to more accurately reflect what it captures.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45656 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-05Didn't mean to commit this.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45607 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-04Move some more functionality from MRegisterInfo to TargetInstrInfo.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45603 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29Don't attribute in file headers anymore. See llvmdev for theChris Lattner
discussion of this change. Boy are my fingers tired. ;-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45411 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-14Start the process of making MachineLoopInfo possible by templating Loop.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44097 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-09Make this header publicAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43938 91177308-0d34-0410-b5e6-96231b3b80d8
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