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132 Commits

Author SHA1 Message Date
Devang Patel 1c469d36b0 Undo previous patch. 
llvm-svn: 60701
 2008-12-08 17:02:37 +00:00
Chris Lattner 2b07d3ccde switch a couple more calls to use array_pod_sort. 
llvm-svn: 60337
 2008-12-01 06:52:57 +00:00
Devang Patel fe57d109b6 Ignore conditions that are outside the loop. 
llvm-svn: 58631
 2008-11-03 19:38:07 +00:00
Daniel Dunbar 7f39e2d85a Change create*Pass factory functions to return Pass* instead of 
LoopPass*.
 - Although less precise, this means they can be used in clients
   without RTTI (who would otherwise need to include LoopPass.h, which
   eventually includes things using dynamic_cast). This was the
   simplest solution that presented itself, but I am happy to use a
   better one if available.

llvm-svn: 58010
 2008-10-22 23:32:42 +00:00
Dan Gohman 215742a966 Use 0 instead of false to return a null pointer. 
llvm-svn: 57660
 2008-10-17 00:56:52 +00:00
Devang Patel 9eb525d4f9 Implement function notes as function attributes. 
llvm-svn: 56716
 2008-09-26 23:51:19 +00:00
Devang Patel 4c758ea3e0 Large mechanical patch. 
s/ParamAttr/Attribute/g
s/PAList/AttrList/g
s/FnAttributeWithIndex/AttributeWithIndex/g
s/FnAttr/Attribute/g

This sets the stage 
- to implement function notes as function attributes and 
- to distinguish between function attributes and return value attributes.

This requires corresponding changes in llvm-gcc and clang.

llvm-svn: 56622
 2008-09-25 21:00:45 +00:00
Devang Patel e15607b7bb Put FN_NOTE_AlwaysInline and others in FnAttr namespace. 
llvm-svn: 56527
 2008-09-24 00:06:15 +00:00
Devang Patel e87abd26ba Move FN_NOTE_AlwaysInline and other out of ParamAttrs namespace. 
Do not check isDeclaration() in hasNote(). It is clients' responsibility.

llvm-svn: 56524
 2008-09-23 23:52:03 +00:00
Devang Patel 82fed6702b Use parameter attribute store (soon to be renamed) for 
Function Notes also. Function notes are stored at index ~0.

llvm-svn: 56511
 2008-09-23 22:35:17 +00:00
Devang Patel 329fe728b5 Add hasNote() to check note associated with a function. 
llvm-svn: 56477
 2008-09-22 22:32:29 +00:00
Devang Patel 40519f0370 A loop may be unswitched multiple times. Reconstruct dom info. at the end. 
llvm-svn: 55806
 2008-09-04 22:43:59 +00:00
Devang Patel 00ec74616b Initialize loop data first. 
llvm-svn: 55792
 2008-09-04 20:36:36 +00:00
Devang Patel d52071540c Do not unswitch if the function notes say we're optimizing this function for size. 
llvm-svn: 55786
 2008-09-04 18:55:13 +00:00
Dan Gohman a79db30d28 Tidy up several unbeseeming casts from pointer to intptr_t. 
llvm-svn: 55779
 2008-09-04 17:05:41 +00:00
Devang Patel eb611ddeb2 Do not try to update dominator info while manipulating CFG. This code does not handle all cases and keeps invalid dom info around some cases, which misleads other passes down stream. 
Right now, dom info is recaluclated in the end if the loop is switched.

llvm-svn: 53106
 2008-07-03 17:37:52 +00:00
Bill Wendling a96eabaab7 Remove unused function. 
llvm-svn: 53090
 2008-07-03 07:10:03 +00:00
Devang Patel 226edd1826 Remove extra FIXME 
llvm-svn: 53087
 2008-07-03 06:50:04 +00:00
Devang Patel c4dcf82a16 Reconstruct dom info, if loop is unswitched. 
llvm-svn: 53086
 2008-07-03 06:48:21 +00:00
Devang Patel e491bb8845 LoopUnswitch does not preserve dominator info in all cases. 
llvm-svn: 53085
 2008-07-03 05:55:03 +00:00
Devang Patel 7dcfff392a Undo previous patch. It is not that simple to fix dom info here. 
llvm-svn: 53062
 2008-07-03 00:08:13 +00:00
Devang Patel 5adfcb5783 Preserve dom info while simplifing loop after the unswitch. 
llvm-svn: 53052
 2008-07-02 22:58:54 +00:00
Devang Patel ed50fb5b61 reuse vectors. 
llvm-svn: 53007
 2008-07-02 01:44:29 +00:00
Devang Patel 57d94d6304 Fix comment. 
llvm-svn: 53006
 2008-07-02 01:31:19 +00:00
Devang Patel e149d4ed4d Preserve loop data so that it is not fetched everytime it is needed. 
Keep track of currentLoop.

llvm-svn: 53005
 2008-07-02 01:18:13 +00:00
Devang Patel cd6b697945 Preserve dominance frontier while trivially unswitching loop. 
llvm-svn: 52438
 2008-06-18 02:16:38 +00:00
Devang Patel 7314d0ee3c Update dom tree. Fix PR 2372. 
llvm-svn: 51887
 2008-06-02 22:52:56 +00:00
Dan Gohman f96e1371e8 Tidy up BasicBlock::getFirstNonPHI, and change a bunch of places to 
use it instead of duplicating its functionality.

llvm-svn: 51499
 2008-05-23 21:05:58 +00:00
Dan Gohman d78c400b5b Clean up the use of static and anonymous namespaces. This turned up 
several things that were neither in an anonymous namespace nor static
but not intended to be global.

llvm-svn: 51017
 2008-05-13 00:00:25 +00:00
Dan Gohman 6a2da37c0e Make several variable declarations static. 
llvm-svn: 50696
 2008-05-06 01:53:16 +00:00
Nick Lewycky 4d43d3c72c Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989 
r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.

llvm-svn: 50265
 2008-04-25 16:53:59 +00:00
Chris Lattner 559c867ece fit some more code in 80 cols. 
llvm-svn: 50016
 2008-04-21 00:25:49 +00:00
Gabor Greif e9ecc68d8f API changes for class Use size reduction, wave 1. 
Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.

llvm-svn: 49277
 2008-04-06 20:25:17 +00:00
Nick Lewycky 11fc6f8765 Update the block cloner which fixes bugpoint on code using unwind_to (phew!) 
and also update the cloning interface's major user, the loop optimizations.

llvm-svn: 48088
 2008-03-09 05:24:34 +00:00
Chris Lattner f3ebc3f3d2 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
David Greene c4a80fb574 Get rid of annoying spaces. 
llvm-svn: 45100
 2007-12-17 17:40:29 +00:00
Owen Anderson b0dd27ee91 Make LoopInfoBase more generic, in preparation for having MachineLoopInfo. This involves a small interface change. 
llvm-svn: 44348
 2007-11-27 03:43:35 +00:00
Devang Patel 2af23f976b Do not walk invalid iterator. 
llvm-svn: 42812
 2007-10-09 21:31:36 +00:00
Devang Patel a69f987b66 Fix bug in updating dominance frontier after loop 
unswitch when frontier includes basic blocks that 
are not inside loop.

llvm-svn: 42654
 2007-10-05 22:29:34 +00:00
Devang Patel 3574759d85 Fix 80 col violation. 
llvm-svn: 42591
 2007-10-03 21:17:43 +00:00
Devang Patel e192e32577 Refactor code in a separate method. 
llvm-svn: 42590
 2007-10-03 21:16:08 +00:00
Devang Patel 83cc3f8f51 Update aux. info associated with an instruction before erasing instruction. 
llvm-svn: 42180
 2007-09-20 23:45:50 +00:00
Devang Patel b5933bbbd5 Use SmallVector instead of std::vector. 
llvm-svn: 41207
 2007-08-21 00:31:24 +00:00
David Greene 816a190cdf Fix GLIBCXX_DEBUG error triggered by incrementing erased iterator. 
llvm-svn: 40897
 2007-08-07 16:44:38 +00:00
Chris Lattner 2740694450 wrap some long lines. Major offenders that are left include 
gvn, gvnpre, dse, and predsimplify.  To see these, use:

  make check-line-length

llvm-svn: 40738
 2007-08-02 16:53:43 +00:00
Devang Patel a882328e61 Update dominator info for the middle blocks created while spliting 
exit edge to preserve LCSSA.

Fix dominance frontier update during loop unswitch. This fixes PR 1589, again

llvm-svn: 40737
 2007-08-02 15:25:57 +00:00
Devang Patel 34890b2f27 Undo previous check-in. 
llvm-svn: 40698
 2007-08-01 23:24:50 +00:00
Devang Patel 561b0c29a3 Update dominator info for the middle blocks created while spliting 
exit edge to preserve LCSSA.

Fix dominance frontier update during loop unswitch. This fixes PR 1589.

llvm-svn: 40695
 2007-08-01 22:23:50 +00:00
Dan Gohman 34d442f274 More explicit keywords. 
llvm-svn: 40673
 2007-08-01 15:32:29 +00:00
Devang Patel d491198000 Loop unswitch preserves dom info. 
Use simple analysis interface to preserve analysis info maintained by other loop passes.

llvm-svn: 40627
 2007-07-31 08:03:26 +00:00