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210c5d4880
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33658 Commits

Author SHA1 Message Date
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