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33887 Commits

Author SHA1 Message Date
Evan Cheng
4b6bbe1e9c Change Thumb1 address mode printing, instead of 
[r0, #2 * 4]
Now
[r0, #8]

This makes Thumb2 assembly more uniform and frankly the scale doesn't add much.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86707 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 19:48:13 +00:00
Evan Cheng
1e13c797e5 Add a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86706 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 19:44:56 +00:00
Duncan Sands
650c64383e Add defensive break. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86705 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 19:36:40 +00:00
Daniel Dunbar
5da58851e5 Add a monstrous hack to improve X86ISelDAGToDAG compile time. 
- Force NDEBUG on in any Release build. This drops the compile time to ~100s
   from ~600s, in Release mode.

 - This may just be a temporary workaround, I don't know the true nature of the
   gcc-4.2 compile time performance problem.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86695 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 18:24:37 +00:00
Duncan Sands
e3f749b166 Fix obvious typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86694 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 18:21:37 +00:00
Chris Lattner
6b583919d9 clarify logic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86689 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 17:00:47 +00:00
Duncan Sands
710c37c494 Teach DSE to eliminate useless trampolines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86683 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 13:49:50 +00:00
Duncan Sands
e9097f7438 Add brackets to make gcc-4.4 happy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86681 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 09:32:10 +00:00
Duncan Sands
f07c9497b2 Codegen support for the llvm.invariant/lifetime.start/end intrinsics: 
just throw them away.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86678 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 09:08:09 +00:00
Victor Hernandez
8e345a1c41 Update computeArraySize() to use ComputeMultiple() to determine the array size associated with a malloc; also extend PerformHeapAllocSRoA() to check if the optimized malloc's arg had its highest bit set, so that it is safe for ComputeMultiple() to look through sext instructions while determining the optimized malloc's array size 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86676 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 08:32:25 +00:00
Victor Hernandez
2b6705f5e7 Add ComputeMultiple() analysis function that recursively determines if a Value V is a multiple of unsigned Base 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86675 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 08:28:35 +00:00
Chris Lattner
c22d4d1500 unify the code that determines whether it is a good idea to change the type 
of a computation.  This fixes some infinite loops when dealing with TD that
has no native types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86670 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 07:23:37 +00:00
Nick Lewycky
7cef178176 Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86668 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 07:00:43 +00:00
Nick Lewycky
58571d663c Reapply r86359, "Teach dead store elimination that certain intrinsics write to 
memory just like a store" with bug fixed (partial-overwrite.ll is the
regression test).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86667 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 06:46:40 +00:00
Chris Lattner
dce94d92df refactor TryToSimplifyUncondBranchFromEmptyBlock out of SimplifyCFG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86666 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 05:59:26 +00:00
Oscar Fuentes
c5e1ae1313 CMake: Support for building llvm loadable modules. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86656 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 02:45:37 +00:00
Bruno Cardoso Lopes
734516d1f6 Fix PR5445 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86651 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 02:35:13 +00:00
Chris Lattner
70ce6d0819 I misread the parens, not so redundant after all. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86648 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 02:04:54 +00:00
Chris Lattner
fddcf47a24 make jump threading recursively simplify expressions instead of doing it 
just one level deep.  On the testcase we go from getting this:

F1:                                               ; preds = %T2
  %F = and i1 true, %cond                         ; <i1> [#uses=1]
  br i1 %F, label %X, label %Y

to a fully threaded:

F1:                                               ; preds = %T2
  br label %Y


This changes gets us to the point where we're forming (too many) switch 
instructions on doug's strswitch testcase.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86646 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 01:57:31 +00:00
Chris Lattner
9f3ce36d7e remove some redundant parens. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86645 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 01:56:04 +00:00
Dan Gohman
7071528e4e Remove an unused variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86642 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 01:37:57 +00:00
Dan Gohman
b2e40990c4 Minor code simplification. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86641 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 01:36:20 +00:00
Chris Lattner
e7c90967b1 don't invalidate PN, rewrite of this code is in progress anyway. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86639 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 01:19:06 +00:00
Chris Lattner
e34537856a add a new SimplifyInstruction API, which is like ConstantFoldInstruction, 
except that the result may not be a constant.  Switch jump threading to 
use it so that it gets things like (X & 0) -> 0, which occur when phi preds
are deleted and the remaining phi pred was a zero.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86637 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 01:08:51 +00:00
Jeffrey Yasskin
81cf432569 Fix DenseMap iterator constness. 
This patch forbids implicit conversion of DenseMap::const_iterator to
DenseMap::iterator which was possible because DenseMapIterator inherited
(publicly) from DenseMapConstIterator. Conversion the other way around is now
allowed as one may expect.

The template DenseMapConstIterator is removed and the template parameter
IsConst which specifies whether the iterator is constant is added to
DenseMapIterator.

Actually IsConst parameter is not necessary since the constness can be
determined from KeyT but this is not relevant to the fix and can be addressed
later.

Patch by Victor Zverovich!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86636 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 01:02:17 +00:00
Chris Lattner
d06094f068 factor simplification logic for AND and OR out to InstSimplify from instcombine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86635 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 00:55:12 +00:00
David Goodwin
c2e8a7e8d2 Fixed to address code review. No functional changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86634 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 00:48:55 +00:00
Daniel Dunbar
d65267ee62 Fix MemoryBuffer::getSTDIN to *not* return null if stdin is empty, this is a lame API. 
Also, Stringrefify some more MemoryBuffer functions, and add two performance FIXMEs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86630 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 00:43:58 +00:00
David Goodwin
0855dee564 Allow targets to specify register classes whose member registers should not be renamed to break anti-dependencies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86628 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 00:15:47 +00:00
Chris Lattner
210c5d4880 pull a bunch of logic out of instcombine into instsimplify for compare 
simplification, this handles the foldable fcmp x,x cases among many others.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86627 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 23:55:12 +00:00
Dan Gohman
1ba3b6c565 Pass the (optional) TargetData object to ConstantFoldInstOperands 
and ConstantFoldCompareInstOperands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86626 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 23:34:17 +00:00
Chris Lattner
b0bdac06b2 inline a simple function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86625 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 23:31:49 +00:00
Chris Lattner
9dbb42944c rename SimplifyCompare -> SimplifyCmpInst and split it into 
Simplify[IF]Cmp pieces.  Add some predicates to CmpInst to 
determine whether a predicate is fp or int.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86624 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 23:28:39 +00:00
Jim Grosbach
803b48a155 Now that the default is 'enabled,' a separate command line option for ARM is 
not necessary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86621 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 23:11:45 +00:00
Chris Lattner
8f73deaa87 fix ConstantFoldCompareInstOperands to take the LHS/RHS as 
individual operands instead of taking a temporary array


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86619 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 23:06:58 +00:00
Chris Lattner
9819ef7742 use instructionsimplify instead of a weak clone of ad-hoc folding stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86616 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 23:00:14 +00:00
Chris Lattner
9f3c25aeb3 stub out a new libanalysis "instruction simplify" interface that 
takes decimated instructions and applies identities to them.  This
is pretty minimal at this point, but I plan to pull some instcombine
logic out into these and similar routines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86613 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 22:57:59 +00:00
Jeffrey Yasskin
6f348e4586 Remove dlsym stubs, with Nate Begeman's permission. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86606 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 22:34:19 +00:00
Jim Grosbach
92eb919e80 Enable dynamic stack realignment by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86604 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 22:32:40 +00:00
Chris Lattner
c2c23d03df stub out a new form of BasicBlock::RemovePredecessorAndSimplify which 
simplifies instruction users of PHIs when the phi is eliminated.  This
will be moved to transforms/utils after some other refactoring.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86603 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 22:32:36 +00:00
Jim Grosbach
ad353c74ad Set dynamic stack realignment to real values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86602 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 22:32:03 +00:00
Dan Gohman
ba565bfc21 Remove an unneeded #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86601 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 22:28:30 +00:00
Mike Stump
70e5e6834c Fix for 64-bit builds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86600 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 22:28:21 +00:00
Bill Wendling
2718e43d6a Similar to r86588, but for Darwin this time. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86592 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 21:45:26 +00:00
Bill Wendling
b1ec31d711 The jump table was being generated before the end label for exception handling 
was generated. This caused code like this:

## The asm code for the function
        .section        __TEXT,__const
        .align  2
lJTI11_0:
LJTI11_0:
        .long    LBB11_16
        .long    LBB11_4
        .long    LBB11_5
        .long    LBB11_6
        .long    LBB11_7
        .long    LBB11_8
        .long    LBB11_9
        .long    LBB11_10
        .long    LBB11_11
        .long    LBB11_12
        .long    LBB11_13
        .long    LBB11_14
Leh_func_end11:   ## <---now in the wrong section!

The `Leh_func_end11' would then end up in the wrong section, causing the
resulting EH frame information to be wrong:

__ZL11CheckRightsjPKcbRbRP6NSData.eh:
    .set    Lset500eh,Leh_frame_end11-Leh_frame_begin11
    .long   Lset500eh  ; Length of Frame Information Entry                                                                                                                   
Leh_frame_begin11:
    .long   Leh_frame_begin11-Leh_frame_common
    .long   Leh_func_begin11-.
    .set    Lset501eh,Leh_func_end11-Leh_func_begin11
    .long   Lset501eh                                   ; FDE address range                                                                                                                                   
`Lset501eh' is now something huge instead of the real value.

The X86 back-end generates the jump table after the EH information is
emitted. Do the same here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86588 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 21:20:14 +00:00
Dan Gohman
80f6c58981 Print "..." instead of all the uninteresting register clobbers on call 
instructions. This makes CodeGen dumps significantly less noisy.

Example before:
  BL <ga:@bar>, %R0<imp-def>, %R1<imp-def,dead>, %R2<imp-def,dead>, %R3<imp-def,dead>, %R12<imp-def,dead>, %LR<imp-def,dead>, %D0<imp-def,dead>, %D1<imp-def,dead>, %D2<imp-def,dead>, %D3<imp-def,dead>, %D4<imp-def,dead>, %D5<imp-def,dead>, %D6<imp-def,dead>, %D7<imp-def,dead>, %D16<imp-def,dead>, %D17<imp-def,dead>, %D18<imp-def,dead>, %D19<imp-def,dead>, %D20<imp-def,dead>, %D21<imp-def,dead>, %D22<imp-def,dead>, %D23<imp-def,dead>, %D24<imp-def,dead>, %D25<imp-def,dead>, %D26<imp-def,dead>, %D27<imp-def,dead>, %D28<imp-def,dead>, %D29<imp-def,dead>, %D30<imp-def,dead>, %D31<imp-def,dead>, %CPSR<imp-def,dead>, %FPSCR<imp-def,dead>

Same example after:
  BL <ga:@bar>, %R0<imp-def>, %R1<imp-def,dead>, %LR<imp-def,dead>, %CPSR<imp-def,dead>, ...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86583 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 19:38:45 +00:00
Dan Gohman
f75ef668a7 Default-addressspace null pointers don't alias anything. This allows 
GVN to be more aggressive. Patch by Hans Wennborg! (with a comment added by me)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86582 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 19:29:11 +00:00
David Goodwin
980d494ab6 Fix dependencies added to model memory aliasing for post-RA scheduling. The dependencies were overly conservative for memory access that are known not to alias. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86580 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 19:22:17 +00:00
Dan Gohman
eaa181c83a Fix a comment in a typo that Duncan noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86575 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 18:59:22 +00:00
Dan Gohman
f6572d0aa2 Generalize LCSSA to handle loops with exits with predecessors outside 
the loop. This is needed because with indirectbr it may not be possible
for LoopSimplify to guarantee that all loop exit predecessors are
inside the loop. This fixes PR5437.

LCCSA no longer actually requires LoopSimplify form, but for now it
must still have the dependency because the PassManager doesn't know
how to schedule LoopSimplify otherwise.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86569 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 18:28:24 +00:00
Dan Gohman
81d893ccf2 Minor tidiness fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86565 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 18:19:43 +00:00
Dan Gohman
28a4c78621 Constify MachineFunctionAnalysis' TargetMachine reference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86564 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 18:18:49 +00:00
Nuno Lopes
95a3be0ba4 add zextOrTrunc and sextOrTrunc methods, that are similar to the ones in APInt 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86549 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 15:36:28 +00:00
Jim Grosbach
43cca695a8 Work around assembler not recognizing #0.0 form immediate for vmcp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86548 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 15:27:51 +00:00
Xerxes Ranby
5aa638d8f7 Make lib/Support/Debug.cpp SetCurrentDebugType implementation part of llvm namespace to match function declaration in Debug.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86544 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 14:50:34 +00:00
Bruno Cardoso Lopes
b8e0ebf034 Fix PR5149. 
http://llvm.org/bugs/show_bug.cgi?id=5149



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86543 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 14:27:49 +00:00
Chris Lattner
47fc9d3366 make this handle redefinition of malloc with different prototype correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86525 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 07:12:01 +00:00
Chris Lattner
7e606e2e98 if a 'with overflow' intrinsic just has the normal result used, simplify 
it to a normal binop.  Patch by Alastair Lynn, testcase by me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86524 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 07:07:56 +00:00
Evan Cheng
df8ed02473 Hide a couple of options. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86522 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 06:49:37 +00:00
Evan Cheng
63040ce858 80 col. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86521 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 06:49:22 +00:00
Chris Lattner
74965f2279 fix PR5104: when printing a single character, return the result of 
putchar in case there is an error.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86515 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 04:57:04 +00:00
Chris Lattner
570a0b8d74 random tidy 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86511 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 04:18:23 +00:00
Chris Lattner
49e27a5375 remove a redundant printout, LinkInArchive prints this as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86510 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 04:15:28 +00:00
Chris Lattner
dd21a1cba4 enhance PHI slicing to handle the case when a slicable PHI is begin 
used by a chain of other PHIs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86503 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 01:38:00 +00:00
Owen Anderson
b0acf66bf9 Small cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86499 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 00:48:15 +00:00
Owen Anderson
b05a1d116f Revert my previous patch to ABCD and fix things the right way. There are two problems addressed 
here:

1) We need to avoid processing sigma nodes as phi nodes for constraint generation.
2) We need to generate constraints for comparisons against constants properly.

This includes our first working ABCD test!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86498 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 00:44:44 +00:00
Chris Lattner
e7e63fe965 comment typos pointed out by Duncan 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86497 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 00:41:49 +00:00
Jim Grosbach
e5165490b7 Use Unified Assembly Syntax for the ARM backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86494 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 00:11:35 +00:00
Owen Anderson
9feeeaf9ed Fix an issue where the ordering of blocks within a function could lead to different constraint 
graphs being produced.  The cause was that we were incorrectly marking sigma instructions as
processed after handling the sigma-specific constraints for them, potentially neglecting to
process them as normal instructions as well.

Unfortunately, the testcase that inspired this still doesn't work because of a bug in the solver,
which is next on the list to debug.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86486 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 22:36:55 +00:00
Chris Lattner
bf382b5f74 Teach an instcombine to not pull trunc instructions through PHI nodes 
when both the source and dest are illegal types, since it would cause
the phi to grow (for example, we shouldn't transform test14b's phi to
a phi on i320).  This fixes an infinite loop on i686 bootstrap with
phi slicing turned on, so turn it back on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86483 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 21:20:06 +00:00
Duncan Sands
68d29d09c6 Revert commit 81144, and add a comment. It caused bugpoint timeouts 
not to work any more on linux.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86481 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 20:55:48 +00:00
Chris Lattner
9956c056c1 reapply r8644[3-5] with only the scary part 
(SliceUpIllegalIntegerPHI) disabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86480 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 19:23:30 +00:00
Daniel Dunbar
d11a7c3b03 Speculatively revert r8644[3-5], they seem to be leading to infinite loops in 
llvm-gcc bootstrap.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86478 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 17:52:47 +00:00
Anton Korobeynikov
f0b47b7f6d Add and-not (bic) patterns. Based heavily on patch by Brian Lucas! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86471 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 15:33:12 +00:00
Anton Korobeynikov
830fe7bc2d Move OR patterns upper to all logical stuff. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86470 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 15:32:44 +00:00
Anton Korobeynikov
ff2c186d59 Some nice peephole patterns. Based on patch by Brian Lucas! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86469 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 15:32:28 +00:00
Anton Korobeynikov
764cfaabd2 Print tab before operand of jcc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86468 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 15:32:11 +00:00
Anton Korobeynikov
52f28e9b63 Fix invalid operand updates & implement post-inc memory operands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86466 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 14:27:38 +00:00
Anton Korobeynikov
773943ac5c Throw an error when stack realignment stuff fails instead of silent 
code miscompilation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86463 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 12:58:40 +00:00
Daniel Dunbar
d702c8c980 Remove ByteswapSCANFResults, it is dead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86458 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 09:46:57 +00:00
Lang Hames
16dcaf5996 Moved some ManagedStatics out of the SlotIndexes header. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86446 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 08:49:59 +00:00
Chris Lattner
91114966b1 teach a couple of instcombine transformations involving PHIs to 
not turn a PHI in a legal type into a PHI of an illegal type, and
add a new optimization that breaks up insane integer PHI nodes into
small pieces (PR3451).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86443 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 08:21:13 +00:00
Nick Lewycky
327127909e We don't need to byteswap, the interpreter assumes the program is running 
native anyways. This fixes a crash using %d and similar in a scanf statement.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86440 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 05:45:04 +00:00
Chris Lattner
7e89738f98 Make TargetData::getStringRepresentation spit out native integer types, 
this gives llvm-gcc generated modules the right data.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86435 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 02:32:01 +00:00
Nick Lewycky
dbf6f518e9 Fix the interpreter to not crash due to zeroext/signext 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86428 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 00:45:29 +00:00
Jim Grosbach
31bc849123 Use aligned load/store instructions for spilling Q registers when we know the stack slot is 128 bit aligned 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86425 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 00:27:19 +00:00
Evan Cheng
fdc834046e Refactor code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86423 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-08 00:15:23 +00:00
Daniel Dunbar
f0bb41c078 Fix MSVC warning ( | with bool and unsigned int). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86417 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 23:51:55 +00:00
Nate Begeman
0b10b91465 x86 vector shuffle cleanup/fixes: 
1. rename the movhp patfrag to movlhps, since thats what it actually matches
2. eliminate the bogus movhps load and store patterns, they were incorrect.  The load transforms are already handled (correctly) by shufps/unpack.
3. revert a recent test change to its correct form.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86415 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 23:17:15 +00:00
Jim Grosbach
31c24bf5b3 80-column cleanup of file header comments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86408 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 22:00:39 +00:00
Jim Grosbach
8a5ec86a3d Support alignment specifier for NEON vld/vst instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86404 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 21:25:39 +00:00
Nick Lewycky
f80fcd00b3 Improve tail call elimination to handle the switch statement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86403 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 21:10:15 +00:00
Evan Cheng
bf992817f2 t2ldrpci_pic can be used for blockaddress as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86400 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 19:40:04 +00:00
Chris Lattner
918871ee01 make instcombine only rewrite a chain of computation 
(eliminating some extends) if the new type of the
computation is legal or if both the source and dest
are illegal.  This prevents instcombine from changing big
chains of computation into i64 on 32-bit targets for 
example.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86398 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 19:11:46 +00:00
Chris Lattner
59a9178fbe indicate what the native integer types for the target are. 
Please verify.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86397 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 19:07:32 +00:00
Chris Lattner
1d95725d60 Revert r86359, it is breaking the self host on the 
llvm-gcc-i386-darwin9 build bot.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86391 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 17:59:32 +00:00
Anton Korobeynikov
06ac0820a6 First try of the post-inc operands handling... Not fully worked, though :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86386 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 17:15:25 +00:00
Anton Korobeynikov
6534f83ae8 Add some dummy support for post-incremented loads 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86385 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 17:15:06 +00:00
Anton Korobeynikov
8983da729a Add 8 bit libcalls and make use of them for msp430 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86384 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 17:14:39 +00:00
Anton Korobeynikov
8046ef4379 Add few pseudo-source-values 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86383 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 17:13:57 +00:00
Anton Korobeynikov
123ed8f099 Initial support for addrmode handling. Tests by Brian Lucas! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86382 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 17:13:35 +00:00
Anton Korobeynikov
603fce9ebb Some preliminary variable asmprinting 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86381 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 17:12:58 +00:00
Anton Korobeynikov
5c192fbe45 Use '.L' for global private prefix (as mspgcc) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86380 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 17:12:38 +00:00
Anton Korobeynikov
b7790e11c4 Drop old asmprinter stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86379 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 17:12:21 +00:00
Anton Korobeynikov
e8ea011cc7 It turns out that the testcase in question uncovered subreg-handling bug. 
Add assert in asmprinter to catch such cases and xfail the tests.
PR is to be filled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86375 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 15:20:32 +00:00
Chris Lattner
e82bdc4809 add the ability for TargetData to return information about legal integer 
datatypes on a given CPU.  This is intended to allow instcombine and other
transformations to avoid converting big sequences of operations to an
inconvenient width, and will help clean up after SRoA.  See also "Adding 
legal integer sizes to TargetData" on Feb 1, 2009 on llvmdev, and PR3451.

Comments welcome.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86370 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 09:35:34 +00:00
Chris Lattner
2e07494170 more cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86369 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 09:23:04 +00:00
Chris Lattner
8f9b0f6e88 add some missing #includes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86367 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 09:20:54 +00:00
Chris Lattner
b7aadfac5e rewrite TargetData to use StringRef/raw_ostream instead of thrashing std::strings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86366 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 09:13:23 +00:00
Chris Lattner
d6e5763e12 prune #include / layering violation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86365 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 09:07:01 +00:00
Jeffrey Yasskin
2d274412ed Make the need-stub variables accurate and consistent. In the case of 
MachineRelocations, "stub" always refers to a far-call stub or a
load-a-faraway-global stub, so this patch adds "Far" to the term. (Other stubs
are used for lazy compilation and dlsym address replacement.) The variable was
also inconsistent between the positive and negative sense, and the positive
sense ("NeedStub") was more demanding than is accurate (since a nearby-enough
function can be called directly even if the platform often requires a stub).
Since the negative sense causes double-negatives, I switched to
"MayNeedFarStub" globally.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86363 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 08:51:52 +00:00
Eric Christopher
761411c21b Fix a couple of shuffle patterns to use movhlps instead 
of movhps as the constraint.  Changes optimizations so
update testcases as appropriate as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86360 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 08:45:53 +00:00
Nick Lewycky
4de9b7f51f Teach dead store elimination that certain intrinsics write to memory just like 
a store.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86359 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 08:34:40 +00:00
Chris Lattner
5729d38c81 reapply 86289, 86278, 86270, 86267, 86266 & 86264 plus a fix 
(making pred factoring only happen if threading is guaranteed
to be successful).

This now survives an X86-64 bootstrap of llvm-gcc.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86355 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 08:05:03 +00:00
Chris Lattner
e880efe446 Fix PR5421 by APInt'izing switch lowering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86354 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 07:50:34 +00:00
Nick Lewycky
cb19438f63 Oops, FunctionContainsEscapingAllocas is really used to mean two different 
things. Back out part of r86349 for a moment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86353 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 07:42:38 +00:00
Nick Lewycky
0cade26132 Dust off tail recursion elimination. Fix a fixme by applying CaptureTracking 
and add a .ll to demo the new capability.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86349 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 07:10:01 +00:00
Mikhail Glushenkov
6533afe349 llvmc: Add a '-time' option. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86348 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 06:33:58 +00:00
Mikhail Glushenkov
c11e84d3e7 Trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86347 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 06:33:12 +00:00
Lang Hames
d6ef7fac1a Update some globals to use ManagedStatic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86342 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 05:50:28 +00:00
Mon P Wang
bdea34807a Fix memoizing of CvtRndSatSDNode 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86340 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 04:46:25 +00:00
Mon P Wang
0ace1a9f30 Fixed Overload table bug noticed by Jakob 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86332 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 04:07:33 +00:00
Evan Cheng
d457e6e9a5 Refactor code. Fix a potential missing check. Teach isIdentical() about tLDRpci_pic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86330 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 04:04:34 +00:00
Evan Cheng
78e5c1140a - Add TargetInstrInfo::isIdentical(). It's similar to MachineInstr::isIdentical 
except it doesn't care if the definitions' virtual registers differ. This is
  used by machine LICM and other MI passes to perform CSE.
- Teach Thumb2InstrInfo::isIdentical() to check two t2LDRpci_pic are identical.
  Since pc relative constantpool entries are always different, this requires it
  it check if the values can actually the same.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86328 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 03:52:02 +00:00
Ted Kremenek
b6aae88ac0 Update CMake file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86325 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 03:26:59 +00:00
Kenneth Uildriks
b4997aeab7 Add code to check at SelectionDAGISel::LowerArguments time to see if return values can be lowered to registers. Coming soon, code to perform sret-demotion if return values cannot be lowered to registers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86324 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 02:11:54 +00:00
Jakob Stoklund Olesen
3de23e6f6c Fix inverted conflict test in -early-coalesce. 
A non-identity copy cannot be coalesced when the phi join destination register
is live at the copy site.

Also verify the condition that the PHI join source register is only used in
the PHI join. Otherwise the coalescing is invalid.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86322 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 01:58:40 +00:00
Devang Patel
12d53dba36 Revert following patches to fix llvmgcc bootstrap. 
86289, 86278, 86270, 86267, 86266 & 86264
Chris, please take a look.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86321 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 01:32:59 +00:00
Johnny Chen
0430152a11 My previous patch (r84124) for setting the encoding bits 4 and 7 of DPSoRegFrm 
was wrong and too aggressive in the sense that DPSoRegFrm includes both constant
shifts (with Inst{4} = 0) and register controlled shifts (with Inst{4} = 1 and
Inst{7} = 0).  The 'rr' fragment of the multiclass definitions actually means
register/register with no shift, see A8-11.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86319 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 00:54:36 +00:00
Victor Hernandez
631f3c0dfd - new SROA mallocs should have the mallocs running-or'ed, not the malloc's bitcast 
- fix ProcessInternalGlobal() debug output



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86317 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 00:41:19 +00:00
Victor Hernandez
4d81d97a06 Fit in 80 columns 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86316 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 00:36:50 +00:00
Jeffrey Yasskin
9beab3fe6f Avoid "ambiguous 'else'" warning from gcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86314 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 00:26:47 +00:00
Victor Hernandez
9d0b704e3e Re-commit r86077 now that r86290 fixes the 179.art and 175.vpr ARM regressions. 
Here is the original commit message:

This commit updates malloc optimizations to operate on malloc calls that have constant int size arguments.

Update CreateMalloc so that its callers specify the size to allocate:
MallocInst-autoupgrade users use non-TargetData-computed allocation sizes.
Optimization uses use TargetData to compute the allocation size.

Now that malloc calls can have constant sizes, update isArrayMallocHelper() to use TargetData to determine the size of the malloced type and the size of malloced arrays.
Extend getMallocType() to support malloc calls that have non-bitcast uses.

Update OptimizeGlobalAddressOfMalloc() to optimize malloc calls that have non-bitcast uses.  The bitcast use of a malloc call has to be treated specially here because the uses of the bitcast need to be replaced and the bitcast needs to be erased (just like the malloc call) for OptimizeGlobalAddressOfMalloc() to work correctly.

Update PerformHeapAllocSRoA() to optimize malloc calls that have non-bitcast uses.  The bitcast use of the malloc is not handled specially here because ReplaceUsesOfMallocWithGlobal replaces through the bitcast use.

Update OptimizeOnceStoredGlobal() to not care about the malloc calls' bitcast use.

Update all globalopt malloc tests to not rely on autoupgraded-MallocInsts, but instead use explicit malloc calls with correct allocation sizes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86311 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 00:16:28 +00:00
Jim Grosbach
bd79fc8ef2 80-columns 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86310 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 00:13:30 +00:00
Jeffrey Yasskin
e637c195fd Give the JITResolver a direct pointer to its JITEmitter, and use that instead 
of going through the global TheJIT variable.  This makes it easier to use
features of JITEmitter that aren't in JITCodeEmitter for fixing PR5201.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86305 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 00:00:10 +00:00
Evan Cheng
b9803a8fa6 - Add pseudo instructions tLDRpci_pic and t2LDRpci_pic which does a pc-relative 
load of a GV from constantpool and then add pc. It allows the code sequence to
  be rematerializable so it would be hoisted by machine licm.
- Add a late pass to break these pseudo instructions into a number of real
  instructions. Also move the code in Thumb2 IT pass that breaks up t2MOVi32imm
  to this pass. This is done before post regalloc scheduling to allow the
  scheduler to proper schedule these instructions. It also allow them to be
  if-converted and shrunk by later passes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86304 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 23:52:48 +00:00
Anton Korobeynikov
fc2cba8362 Honour subreg machine operands during asmprinting 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86303 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 23:45:15 +00:00
Bob Wilson
54c78ef2fe Print VMOV (immediate) operands as hexadecimal values. Apple's assembler 
will not accept negative values for these.  LLVM's default operand printing
sign extends values, so that valid unsigned values appear as negative
immediates.  Print all VMOV immediate operands as hex values to resolve this.
Radar 7372576.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86301 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 23:33:28 +00:00
Chris Lattner
79f0332c20 Fix a bug where we'd call SplitBlockPredecessors with a pred in the 
set only once even if it has multiple edges to BB.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86299 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 23:19:58 +00:00
Bob Wilson
c0ef244499 Fix comment typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86295 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 22:38:38 +00:00
Evan Cheng
e7e0d62efd Remove ARMPCLabelIndex from ARMISelLowering. Use ARMFunctionInfo::createConstPoolEntryUId() instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86294 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 22:24:13 +00:00
Victor Hernandez
82ebca15a8 CallInst::CreateMalloc() and CallInst::CreateFree() need to create calls with correct calling convention 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86290 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 21:43:21 +00:00
Eli Friedman
50591ab1ea Remove function left over from other jump threading cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86289 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 21:24:57 +00:00
Chris Lattner
82114b98c9 Fix a problem discovered on self host. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86278 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 19:21:48 +00:00
Chris Lattner
90b9247377 remove more code subsumed by r86264 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86270 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 18:24:32 +00:00
Devang Patel
5ebfa2d181 Tolerate invalid derived type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86269 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 18:24:05 +00:00
Chris Lattner
f7807f6b9e eliminate some more code subsumed by r86264 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86267 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 18:22:54 +00:00
Chris Lattner
90926ab827 remove now redundant code, r86264 handles this case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86266 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 18:20:58 +00:00
Chris Lattner
785672534d Extend jump threading to support much more general threading 
predicates.  This allows us to jump thread things like:

_ZN12StringSwitchI5ColorE4CaseILj7EEERS1_RAT__KcRKS0_.exit119:
  %tmp1.i24166 = phi i8 [ 1, %bb5.i117 ], [ %tmp1.i24165, %_Z....exit ], [ %tmp1.i24165, %bb4.i114 ] 
  %toBoolnot.i87 = icmp eq i8 %tmp1.i24166, 0     ; <i1> [#uses=1]
  %tmp4.i90 = icmp eq i32 %tmp2.i, 6              ; <i1> [#uses=1]
  %or.cond173 = and i1 %toBoolnot.i87, %tmp4.i90  ; <i1> [#uses=1]
  br i1 %or.cond173, label %bb4.i96, label %_ZN12...

Where it is "obvious" that when coming from %bb5.i117 that the 'and' is always 
false.  This triggers a surprisingly high number of times in the testsuite, 
and gets us closer to generating good code for doug's strswitch testcase.

This also make a bunch of other code in jump threading redundant, I'll rip
out in the next patch.  This survived an enable-checking llvm-gcc bootstrap.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86264 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 18:15:14 +00:00
Dan Gohman
8d4e3b5b48 Use WriteAsOperand to print GlobalAddress MachineOperands. This 
prints them with the leading '@'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86261 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 18:03:10 +00:00
Devang Patel
84c73e9b82 Do not bother to emit debug info for nameless global variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86259 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 17:58:12 +00:00
Daniel Dunbar
2928c83b01 Pass StringRef by value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86251 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 10:58:06 +00:00
Chris Lattner
f55eeb918e remove some more Context arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86235 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 05:59:53 +00:00
Chris Lattner
7b550ccfc5 remove a bunch of extraneous LLVMContext arguments 
from various APIs, addressing PR5325.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86231 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 04:27:31 +00:00
Victor Hernandez
df98761d08 Revert r86077 because it caused crashes in 179.art and 175.vpr on ARM 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86213 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 01:33:24 +00:00
Devang Patel
465c3bed16 Do not try to emit debug info entry for dead global variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86212 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 01:30:04 +00:00
Dan Gohman
40c57860da Factor out the printing of the leading tab into printInlineAsm. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86199 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 00:04:54 +00:00
Dan Gohman
7289ed2ee7 Use SUBREG_TO_REG instead of INSERT_SUBREG to model x86-64's 
implicit zero-extend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86196 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 23:53:08 +00:00
Dan Gohman
eb3567cd49 Teach LSR to avoid calling SplitCriticalEdge on edges with indirectbr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86193 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 23:34:59 +00:00
Dan Gohman
568a3be545 Fix the label name generation for address-taken labels to avoid potential 
problems with name collisions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86189 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 23:14:35 +00:00
Lang Hames
fbb8fa247e Added support for renumbering existing index list elements. Removed some junk from the initial numbering code in runOnMachineFunction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86184 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 22:20:57 +00:00
Dan Gohman
b1dc915a8d Avoid calling getUniqueExitBlocks from within LoopSimplify, as it depends 
on loops having dedicated exits, which LoopSimplify can no longer always
guarantee.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86181 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 21:48:32 +00:00
Dan Gohman
32cc5f47fa LoopDeletion depends on loops having dedicated exits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86180 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 21:47:04 +00:00
Dan Gohman
f4e82d1f2e The introduction of indirectbr meant the introduction of 
unsplittable critical edges, which means the introduction of
loops which cannot be transformed to LoopSimplify form. Fix
LoopSimplify to avoid transforming such loops into invalid
code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86176 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 21:14:46 +00:00
Dan Gohman
03e896bd60 Update various Loop optimization passes to cope with the possibility that 
LoopSimplify form may not be available.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86175 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 21:11:53 +00:00
David Goodwin
7040d6e2f5 Fix bug in aggressive antidep breaking; liveness was not updated correctly for regions that do not have antidep candidates. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86172 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 21:06:09 +00:00
Dan Gohman
692ad8dd06 Teach LoopUnroll how to bail if LoopSimplify can't give it what it needs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86164 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 19:44:06 +00:00
Dan Gohman
6a02fc3070 Call getAnalysis<LoopInfo> the normal way, instead of asking passed-in 
LoopPassManager for it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86163 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 19:43:25 +00:00
Dan Gohman
a6a4aaefee Fix IVUsers to avoid assuming that the loop has a unique backedge. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86161 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 19:41:37 +00:00
Dan Gohman
6890584ab1 Delete an unused member variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86160 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 19:33:15 +00:00
Dan Gohman
f17e9511f1 Factor out the predicate code for loopsimplify form exit blocks into 
a separate helper function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86159 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 19:21:41 +00:00
Dan Gohman
c5600c89d6 Avoid printing a redundant space in SDNode->dump(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86151 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 18:49:11 +00:00
Dan Gohman
73bb251cd7 Remove uninteresting and confusing debug output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86149 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 18:47:09 +00:00
Dan Gohman
b8eb17c807 Add an assertion to catch indirectbr in SplitBlockPredecessors. This 
makes several optimization passes abort in cases where they're currently
silently miscompiling code.

Remove the indirectbr assertion from SplitEdge. Indirectbr is only
a problem for critical edges, and SplitEdge defers to SplitCriticalEdge
to handle those, and SplitCriticalEdge has its own assertion for
indirectbr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86147 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 18:25:44 +00:00
Chris Lattner
6c9fab7404 add a note from PR5313 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86146 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 18:19:19 +00:00
Benjamin Kramer
992a637297 Teach SimplifyLibCalls to fold memcmp calls with constant arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86141 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 17:44:22 +00:00
Benjamin Kramer
bcaa2157dd Do map insert+find in one step. TODO -= 2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86133 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 14:33:27 +00:00
Benjamin Kramer
e9684c682a Path::createDirectoryOnDisk should ignore existing directories on win32 too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86132 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 14:32:40 +00:00
Mon P Wang
82c443655d Reintroduce support for overloading target intrinsics 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86114 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 03:19:08 +00:00
David Goodwin
98f2f1aff8 Replace std::map.at() with std::map[]. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86102 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 01:45:50 +00:00
David Goodwin
54097836f3 Break anti-dependencies using free registers in a round-robin manner to avoid introducing new anti-dependencies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86098 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 01:19:35 +00:00
Evan Cheng
517e2556e3 Now that code placement optimization pass is run for JIT, make sure it's before pre-emit passes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86092 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 01:16:59 +00:00
Devang Patel
85b8de8118 Use WeakVH while storing metadata in containers. 
This fixes PR5393.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86091 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 01:13:02 +00:00
Evan Cheng
9fb744e169 Code refactoring. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86085 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 00:51:13 +00:00
David Goodwin
5be870add9 Correctly add chain dependencies around calls and unknown-side-effect instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86080 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 00:16:44 +00:00
Victor Hernandez
24f934d055 Update CreateMalloc so that its callers specify the size to allocate: 
MallocInst-autoupgrade users use non-TargetData-computed allocation sizes.
Optimization uses use TargetData to compute the allocation size.

Now that malloc calls can have constant sizes, update isArrayMallocHelper() to use TargetData to determine the size of the malloced type and the size of malloced arrays.
Extend getMallocType() to support malloc calls that have non-bitcast uses.

Update OptimizeGlobalAddressOfMalloc() to optimize malloc calls that have non-bitcast uses.  The bitcast use of a malloc call has to be treated specially here because the uses of the bitcast need to be replaced and the bitcast needs to be erased (just like the malloc call) for OptimizeGlobalAddressOfMalloc() to work correctly.

Update PerformHeapAllocSRoA() to optimize malloc calls that have non-bitcast uses.  The bitcast use of the malloc is not handled specially here because ReplaceUsesOfMallocWithGlobal replaces through the bitcast use.

Update OptimizeOnceStoredGlobal() to not care about the malloc calls' bitcast use.

Update all globalopt malloc tests to not rely on autoupgraded-MallocInsts, but instead use explicit malloc calls with correct allocation sizes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86077 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-05 00:03:03 +00:00
Devang Patel
61ecbd196c While calculating original type size for a derived type, handle type variants encoded as DIDerivedType appropriately. 
This improves bitfield support.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86073 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 23:48:00 +00:00
Jim Grosbach
4371cda7f8 Grammar. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86068 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 23:20:40 +00:00
Chris Lattner
40dd12e708 improve DSE when TargetData is not around, based on work by 
Hans Wennborg!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86067 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 23:20:12 +00:00
Jim Grosbach
db1751a922 Now that the memory leak from McCat/08-main has been fixed (86056), re-enable 
aggressive testing of dynamic stack alignment.
Note that this is off by default, and enabled for LLCBETA nightly results.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86064 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 23:11:07 +00:00
Jim Grosbach
6db06a0866 If a function has no stack frame at all, dynamic realignment isn't necessary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86057 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 22:41:51 +00:00
Jim Grosbach
c5848f4ced dynamic stack realignment necessitates scanning the floating point callee- 
saved instructions even if no stack adjustment for those saves is needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86056 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 22:41:00 +00:00
Devang Patel
33db508283 Fix DW_AT_data_member_location for bit-fields. It points to the location of annonymous field that covers respective field. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86054 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 22:06:12 +00:00
Bob Wilson
3d90dbee69 Add PowerPC codegen for indirect branches. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86050 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 21:31:18 +00:00
Lang Hames
0368e500eb Handle empty/tombstone keys for LiveIndex more cleanly. Check for index sanity when constructing index list entries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86049 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 21:24:15 +00:00
Duncan Sands
7127b13342 A value is only assigned to errno if NumRead equals -1, so do 
not reason based on errno if NumRead has a different value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86046 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 20:50:23 +00:00
Eric Christopher
522c01ac65 Add some options to disable various code gen optimizations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86044 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 19:57:50 +00:00
Devang Patel
c416d3b25d Array element size does not match array size but array is not a bitfield. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86043 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 19:37:40 +00:00
Jakob Stoklund Olesen
ad68264f59 Print out an informative comment for KILL instructions. 
The KILL pseudo-instruction may survive to the asm printer pass, just like the IMPLICIT_DEF. Print the KILL as a comment instead of just leaving a blank line in the output.

With -asm-verbose=0, a blank line is printed, like IMPLICIT?DEF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86041 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 19:24:37 +00:00
Chris Lattner
0fb7e18edd Fix an iterator invalidation bug that happens when a hashtable 
resizes in IPSCCP.  This fixes PR5394.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86036 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 18:57:42 +00:00
Evan Cheng
50608bac2f RangeIsDefinedByCopyFromReg() should check for subreg_to_reg, insert_subreg, 
and extract_subreg as a "copy" that defines a valno.
Also fixes a typo. These two issues prevent a simple subreg coalescing from
happening before.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86022 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 08:33:14 +00:00
Chris Lattner
092543ca71 move two functions up higher in the file. Delete a useless argument 
to EmitGEPOffset.  

Implement some new transforms for optimizing 
subtracts of two pointer to ints into the same vector.  This happens
for C++ iterator idioms for example, stringmap takes a const char*
that points to the start and end of a string.  Once inlined, we want
the pointer difference to turn back into a length.

This is rdar://7362831.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86021 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 08:05:20 +00:00
Evan Cheng
b9f51cbe98 The .n suffix must go after the predicate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86019 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 07:38:48 +00:00
Douglas Gregor
dece1e217a Fix CMake makefiles 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85994 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 01:32:06 +00:00
Evan Cheng
7883fa942f Use ldr.n to workaround a darwin assembler bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85980 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 00:00:39 +00:00
Lang Hames
233a60ec40 The Indexes Patch. 
This introduces a new pass, SlotIndexes, which is responsible for numbering
instructions for register allocation (and other clients). SlotIndexes numbering
is designed to match the existing scheme, so this patch should not cause any
changes in the generated code.

For consistency, and to avoid naming confusion, LiveIndex has been renamed
SlotIndex.

The processImplicitDefs method of the LiveIntervals analysis has been moved
into its own pass so that it can be run prior to SlotIndexes. This was
necessary to match the existing numbering scheme.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85979 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 23:52:08 +00:00
Bob Wilson
888acc35a3 Fix branch folding bug for indirect branches: for a block containing only 
an unconditional branch (possibly from tail merging), this code is
trying to redirect all of its predecessors to go directly to the branch
target, but that isn't feasible for indirect branches.  The other
predecessors (that don't end with indirect branches) could theoretically
still be handled, but that is not easily done right now.

The AnalyzeBranch interface doesn't currently let us distinguish jump table
branches from indirect branches, and this code is currently handling
jump tables.  To avoid punting on address-taken blocks, we would have to give
up handling jump tables.  That seems like a bad tradeoff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85975 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 23:44:31 +00:00
Chris Lattner
fc36a562ae reimplement multiple return value handling in IPSCCP, making it 
more aggressive an correct.  This survives building llvm in 64-bit
mode with optimizations and the built llvm passes make check.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85973 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 23:40:48 +00:00
Evan Cheng
5a1cd36019 Fix t2Int_eh_sjlj_setjmp. Immediate form of orr is a 32-bit instruction. So it should be 22 bytes instead of 20 bytes long. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85965 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 23:13:34 +00:00
Evan Cheng
b23b2015eb fconsts / fconstd immediate should be proceeded with #. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85952 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 21:59:33 +00:00
Evan Cheng
777c6b7caa Re-apply 85799. It turns out my code isn't buggy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85947 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 21:40:02 +00:00
David Goodwin
4de099d8ca Do a scheduling pass ignoring anti-dependencies to identify candidate registers that should be renamed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85939 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 20:57:50 +00:00
Chris Lattner
abf67ef548 finish half thunk thought 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85937 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 20:52:57 +00:00
Victor Hernandez
3ad70d5d61 Changes requested (avoid getFunction(), avoid Type creation via isVoidTy(), and avoid redundant isFreeCall cases) in feedback to r85176 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85936 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 20:39:35 +00:00
David Goodwin
a9e610768b <rdar://problem/7352605>. When building schedule graph use mayAlias information to avoid chaining loads/stores of spill slots with non-aliased memory ops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85934 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 20:15:00 +00:00
Victor Hernandez
88efeaee22 Changes (* location in pointer variables, avoiding include, and using APInt::getLimitedValue) based on feedback to r85814 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85933 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 20:02:35 +00:00
Chris Lattner
2396cc37ae fix an IPSCCP bug I introduced when I changed IPSCCP to start working on 
functions that don't have local linkage.  Basically, we need to be more
careful about propagating argument information to functions whose results
we aren't tracking.  This fixes a miscompilation of 
LLVMCConfigurationEmitter.cpp when built with an llvm-gcc that has ipsccp
enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85923 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 19:24:51 +00:00
Duncan Sands
954cb43c80 Make this code more robust by not thinking we are making progress 
if zero bytes were read.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85922 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 19:10:22 +00:00
Devang Patel
e8bc45a645 Parse debug info attached with insertvalue and extractvalue instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85921 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 19:06:07 +00:00
Anton Korobeynikov
747409a290 Move subtarget check upper for NEON reg-reg fixup pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85914 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 18:46:11 +00:00
Devang Patel
1b845976d0 Ignore unnamed variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85909 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 18:30:27 +00:00
Chris Lattner
c175e5de2d fix a subtle bug I introduced when refactoring SCCP. Testcase 
to follow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85903 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 16:50:11 +00:00
Benjamin Kramer
419e44edab Eliminate some temporaries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85896 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 12:52:50 +00:00
Evan Cheng
f6c0bffa8d Trim unnecessary include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85878 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 07:08:08 +00:00
Bob Wilson
af14e663ac For Thumb indirect branches, use "mov pc, reg" which does not switch 
between ARM/Thumb modes and does not require the low bit of the target
address to be set for Thumb.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85874 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 06:29:56 +00:00
Jeffrey Yasskin
36d52bf4df Fix a funky "declared with greater visibility than the type of its field" 
warning from gcc by removing VISIBILITY_HIDDEN attributes.  


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85873 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 06:29:36 +00:00
Evan Cheng
ba908640b3 Fix PR5367. QPR_8 is the super regclass of DPR_8 and SPR_8. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85871 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 05:52:54 +00:00
Evan Cheng
b4db6a46e0 Clean up copyRegToReg. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85870 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 05:51:39 +00:00
Evan Cheng
3f4e47be0a Add QPR_8 as a superreg class of SPR_8 and DPR_8. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85869 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 05:50:57 +00:00
Chris Lattner
ff2f683143 remove unneeded checks of isFreeCall 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85866 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 05:35:19 +00:00
Chris Lattner
b8d264aa6b remove a check of isFreeCall: the argument to free is already nocapture so the generic call code works fine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85865 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 05:34:51 +00:00
Chris Lattner
938e176633 remove a isFreeCall check: it is a callinst that can write to memory already. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85863 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 05:33:46 +00:00
Ted Kremenek
92dbd0b320 Update CMake file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85861 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 04:14:12 +00:00
Ted Kremenek
8ab51e3041 Alphabetize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85859 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 04:01:53 +00:00
Chris Lattner
14532d03a1 turn IPSCCP back on now that the iterator invalidation bug is fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85858 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 03:42:51 +00:00
Anton Korobeynikov
7aaf94bb0d Turn neon reg-reg moves fixup code into separate pass. This should reduce the compile time. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85850 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 01:04:26 +00:00
Anton Korobeynikov
ab453e0641 Revert r85049, it is causing PR5367 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85847 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 00:24:48 +00:00
Bob Wilson
b62d257cf5 Revert previous change to a comment. The BlockAddresses go in the 
constant pool so they don't get wrapped separately.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85844 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 00:02:05 +00:00
Chris Lattner
5cc66d979d fix a nasty iterator invalidation bug from my conversion from 
std::map to DenseMap, exposed on release llvm-gcc bootstrap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85840 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 23:25:39 +00:00
Evan Cheng
454ac8961b Revert 85799 for now. It might be breaking llvm-gcc driver. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85827 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 21:49:14 +00:00
Bob Wilson
907eebd5a6 Put BlockAddresses into ARM constant pools. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85824 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 20:59:23 +00:00
Kevin Enderby
60131c0d0b Fix ARMAsmParser::ParseMemoryOffsetReg() where the parameter OffsetRegNum should 
have been passed as a reference.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85823 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 20:14:39 +00:00
Chris Lattner
3774c91854 revert r8579[56], which are causing unhappiness in buildbot land. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85818 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 19:31:10 +00:00
Victor Hernandez
bc117b83f6 Set bit instead of calling pow() to compute 2 << n 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85814 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 18:51:28 +00:00
Chris Lattner
ee7644da4c typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85812 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 18:28:45 +00:00
Chris Lattner
2bbbbd6ac8 disable IPSCCP support for multiple return values, it is buggy, so just 
disable it until I can fix it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85810 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 18:22:51 +00:00
David Goodwin
2f54a2fd85 Fix schedule model for BFC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85809 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 17:28:36 +00:00
Bob Wilson
31ba10b743 Hyphenate some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85808 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 17:10:37 +00:00
David Goodwin
7c9b1ac507 Chain dependencies used to enforce memory order should have latency of 0 (except for true dependency of Store followed by aliased Load... we estimate that case with a single cycle of latency assuming the hardware will bypass) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85807 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 17:06:28 +00:00
Bob Wilson
28989a8ddc Add support for BlockAddress values in ARM constant pools. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85806 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 16:59:06 +00:00