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Author SHA1 Message Date
Jim Grosbach
40edf73a62 Refactor a bit for legibility. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121790 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 21:10:47 +00:00
Jim Grosbach
00f25fa43e trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121789 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 20:46:39 +00:00
Jim Grosbach
eb61272150 Make sure to propagate the predicate operands for LEApcrel to ADR. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121788 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 20:45:47 +00:00
Owen Anderson
86abd48fd0 Fix a small bug (typo?) in the fixup for Thumb1 CBZ/CBNZ instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121784 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 19:42:53 +00:00
Jakob Stoklund Olesen
bfce678de7 Add LiveIntervalUnion print methods, RegAllocGreedy::trySplit debug spew. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121783 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 19:38:49 +00:00
Jakob Stoklund Olesen
4a84cce3ed Use TRI::printReg instead of AbstractRegisterDescription when printing 
LiveIntervalUnions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121781 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 18:53:47 +00:00
Jakob Stoklund Olesen
414e5023f8 Add TargetRegisterInfo::printReg() to pretty-print registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121780 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 18:53:39 +00:00
Jim Grosbach
4750020788 ARM Fixups relative to thumb functions need to have the low bit of the value 
set for interworking to work properly. rdar://8755956

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121778 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 18:46:57 +00:00
Jakob Stoklund Olesen
d84de8cf62 Q.seenAllInterferences() must be called after Q.collectInterferingVRegs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121774 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 17:47:36 +00:00
Daniel Dunbar
abfbac52df MC/ARM: Fix-up fixup offset for fixup_arm_branch target specific fixup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121772 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 17:37:16 +00:00
Jim Grosbach
e8eb1ea6ac Trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121769 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 16:25:15 +00:00
Bill Wendling
971321bb70 Use the integer scheduling intrinsic for integer loads and stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121765 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 12:33:05 +00:00
Chris Lattner
3aff13b82a - Insert new instructions before DomBlock's terminator, 
which is simpler than finding a place to insert in BB.
 - Don't perform the 'if condition hoisting' xform on certain
   i1 PHIs, as it interferes with switch formation.

This re-fixes "example 7", without breaking the world hopefully.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121764 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 08:46:09 +00:00
Chris Lattner
60d410d7bb fix two significant issues with FoldTwoEntryPHINode: 
first, it can kick in on blocks whose conditions have been
folded to a constant, even though one of the edges will be
trivially folded.

second, it doesn't clean up the "if diamond" that it just 
eliminated away.  This is a problem because other simplifycfg
xforms kick in depending on the order of block visitation,
causing pointless work.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121762 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 08:01:53 +00:00
Chris Lattner
071edc81f2 remove the instsimplify logic I added in r121754. It is apparently 
breaking the selfhost builds, though I can't fathom how.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121761 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 07:53:03 +00:00
Chris Lattner
44da7ca421 clean up logic, convert std::set to SmallPtrSet, handle the case 
when all 2-entry phis are simplified away.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121760 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 07:41:39 +00:00
Chris Lattner
e0b18e5912 tidy up a bit, move DEBUG down to when we commit to doing the transform so we 
don't print it unless the xform happens.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121758 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 07:23:10 +00:00
Chris Lattner
07ff3539f5 use SimplifyInstruction instead of reimplementing part of it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121757 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 07:20:29 +00:00
Chris Lattner
995ba1bd49 simplify GetIfCondition by using getSinglePredecessor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121756 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 07:15:21 +00:00
Chris Lattner
6de0a28dfb use AddPredecessorToBlock in 3 places instead of a manual loop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121755 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 07:09:42 +00:00
Chris Lattner
73c50a68a7 make FoldTwoEntryPHINode use instsimplify a bit, make 
GetIfCondition faster by avoiding pred_iterator.  No
really interesting change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121754 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 07:00:00 +00:00
Chris Lattner
2112bbc42d remove the dead (and terrible) llvm::RemoveSuccessor function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121753 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 06:51:55 +00:00
Chris Lattner
302ba6fc1c improve DEBUG's a bit, switch to eraseFromParent() to simplify 
code a bit, switch from constant folding to instsimplify.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121751 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 06:17:25 +00:00
Chris Lattner
8168efffa7 fix yet anohter broken line 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121750 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 06:09:07 +00:00
Chris Lattner
117f8cffc5 reapply my recent change that disables a piece of the switch formation 
work, but fixes 400.perlbmk.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121749 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 05:57:30 +00:00
Bill Wendling
f4caf69720 The tLDR et al instructions were emitting either a reg/reg or reg/imm 
instruction based on the t_addrmode_s# mode and what it returned. There is some
obvious badness to this. In particular, it's hard to do MC-encoding when the
instruction may change out from underneath you after the t_addrmode_s# variable
is finally resolved.

The solution is to revert a long-ago change that merged the reg/reg and reg/imm
versions. There is the addition of several new addressing modes. They no longer
have extraneous operands associated with them. I.e., if it's reg/reg we don't
have to have a dummy zero immediate tacked on to the SDNode.

There are some obvious cleanups here, which will happen shortly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121747 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 03:36:38 +00:00
Evan Cheng
0c1aec1891 bfi A, (and B, C1), C2) -> bfi A, B, C2 iff C1 & C2 == C1. rdar://8458663 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121746 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 03:22:07 +00:00
Jason W Kim
db934e7474 fix fixme case typo :-) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121743 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 01:42:38 +00:00
Jakob Stoklund Olesen
885b3283ea Remove unused vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121741 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 00:58:47 +00:00
Jakob Stoklund Olesen
aca0da6876 Add IntervalMap to the Programmer's Manual. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121740 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 00:55:51 +00:00
Jakob Stoklund Olesen
2ece4dead7 Remove debugging code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121738 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 00:37:52 +00:00
Jakob Stoklund Olesen
46c83c80c5 Try reassigning all virtual register interferences, not just those with lower 
spill weight. Filter out fixed registers instead.

Add support for reassigning an interference that was assigned to an alias.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121737 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 00:37:49 +00:00
Jakob Stoklund Olesen
b64d92e29f Add stub for RAGreedy::trySplit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121736 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 00:37:44 +00:00
Owen Anderson
a838a25d59 Second attempt at make Thumb2 LEAs pseudos. This time, perform the lowering much later, which makes the entire 
process cleaner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121735 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 00:36:49 +00:00
Owen Anderson
2d9220e8f5 Fix recent buildbot breakage by pulling SimplifyCFG back to its state as of r121694, the most recent state 
where I'm confident there were no crashes or miscompilations.  XFAIL the test added since then for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121733 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 23:49:28 +00:00
Jason W Kim
3fa4c1dc95 First cut of ARM/MC/ELF PIC relocations. 
Test has fixme, to move to .s -> .o test when AsmParser works better.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121732 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 23:16:07 +00:00
Bob Wilson
4711d5cda3 Remove the rest of the *_sfp Neon instruction patterns. 
Use the same COPY_TO_REGCLASS approach as for the 2-register *_sfp instructions.
This change made a big difference in the code generated for the
CodeGen/Thumb2/cross-rc-coalescing-2.ll test: The coalescer is still doing
a fine job, but some instructions that were previously moved outside the loop
are not moved now.  It's using fewer VFP registers now, which is generally
a good thing, so I think the estimates for register pressure changed and that
affected the LICM behavior.  Since that isn't obviously wrong, I've just
changed the test file.  This completes the work for Radar 8711675.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121730 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 23:02:37 +00:00
Bob Wilson
0e6d540d17 Simplify N2VSPat, removing some unnecessary type arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121729 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 23:02:31 +00:00
Chris Lattner
f9a1b2a4cf temporarily disable part of my previous patch, which causes an iterator invalidation issue, causing a crash on some versions of perlbmk. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121728 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 23:02:19 +00:00
Dan Gohman
c1f1efdd1a Update a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121727 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 22:53:18 +00:00
Owen Anderson
6b8719fd7d Revert r121721, which broke buildbots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121726 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 22:51:08 +00:00
Dan Gohman
0f7f194416 Reapply r121520, PartialAlias implementation for BasicAA, now that 
memdep is updated to handle it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121725 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 22:50:24 +00:00
Dan Gohman
2cd1952917 Update memdep to handle PartialAlias as MayAlias. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121723 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 22:47:57 +00:00
Owen Anderson
e8d02539d7 Make Thumb2 LEA-like instruction into pseudos, which map down to ADR. Provide correct fixups for Thumb2 ADR, 
which is _of course_ different from ARM ADR fixups, or any other Thumb2 fixup.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121721 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 22:29:52 +00:00
Bob Wilson
4dedddce93 Delete a line that I forgot to revert previously. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121719 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 22:05:55 +00:00
Bob Wilson
1e6f59608b Use COPY_TO_REGCLASS instead of pseudo instructions for Neon FP patterns. 
Jakob Olesen suggested that we can avoid the need for separate pseudo
instructions here by using COPY_TO_REGCLASS in the patterns.  The pattern
gets pretty ugly but it seems to work well.  Partial fix for Radar 8711675.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121718 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 21:58:05 +00:00
Bob Wilson
3a6756cb1c Use pseudo instructions for 2-register Neon instructions for scalar FP. 
Partial fix for Radar 8711675.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121716 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 21:05:52 +00:00
Bob Wilson
6dbcea1f8e Remove unused instruction class arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121715 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 21:05:44 +00:00
Evan Cheng
30fb13f97a Generalize BFI isel lowering a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121714 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 20:32:54 +00:00
Chris Lattner
94c58a0906 add some DEBUG's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121711 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 19:55:30 +00:00