oota-llvm.git
19 years agoAdd a bunch of info about the isel autogenerator. Review appreciated!
Chris Lattner [Sun, 16 Oct 2005 20:02:19 +0000 (20:02 +0000)]
Add a bunch of info about the isel autogenerator.  Review appreciated!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23763 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFill this out some more. Add description of MBB/MF. Fix some broken links,
Chris Lattner [Sun, 16 Oct 2005 18:31:08 +0000 (18:31 +0000)]
Fill this out some more.  Add description of MBB/MF.  Fix some broken links,
turn some broken <a name> into <a href>'s.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23762 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd a stub for the TargetSubtarget class. Jim, please fill a blurb in here
Chris Lattner [Sun, 16 Oct 2005 17:06:07 +0000 (17:06 +0000)]
Add a stub for the TargetSubtarget class.  Jim, please fill a blurb in here
when you get a chance.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23761 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoUpdate this significantly, mention subtarget and isel generation support.
Chris Lattner [Sun, 16 Oct 2005 17:03:22 +0000 (17:03 +0000)]
Update this significantly, mention subtarget and isel generation support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23760 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoMore PPC32 -> PPC changes, as well as merging some classes that were
Nate Begeman [Sun, 16 Oct 2005 05:39:50 +0000 (05:39 +0000)]
More PPC32 -> PPC changes, as well as merging some classes that were
redundant after the change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23759 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoMake the generated code significantly more memory efficient, by using
Chris Lattner [Sun, 16 Oct 2005 01:41:58 +0000 (01:41 +0000)]
Make the generated code significantly more memory efficient, by using
SelectNodeTo instead of getTargetNode when possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23758 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoupdate this a little bit to talk about the dag combiner and remove inaccuracies.
Chris Lattner [Sun, 16 Oct 2005 00:36:38 +0000 (00:36 +0000)]
update this a little bit to talk about the dag combiner and remove inaccuracies.
This still doesn't talk about autogen much

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23757 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix this logic.
Chris Lattner [Sat, 15 Oct 2005 22:35:40 +0000 (22:35 +0000)]
Fix this logic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23756 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd a case we were missing that was causing us to fail CodeGen/PowerPC/rlwinm.ll...
Chris Lattner [Sat, 15 Oct 2005 22:18:08 +0000 (22:18 +0000)]
Add a case we were missing that was causing us to fail CodeGen/PowerPC/rlwinm.ll:test3

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23755 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRemove some dead code now that the dag combiner exists.
Nate Begeman [Sat, 15 Oct 2005 22:08:02 +0000 (22:08 +0000)]
Remove some dead code now that the dag combiner exists.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23754 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRemove some dead code: the ORI/ORIS cases are autogen'd. This makes
Chris Lattner [Sat, 15 Oct 2005 22:06:18 +0000 (22:06 +0000)]
Remove some dead code: the ORI/ORIS cases are autogen'd.  This makes
SelectIntImmediateExpr dead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23753 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoprune #includes
Chris Lattner [Sat, 15 Oct 2005 21:58:54 +0000 (21:58 +0000)]
prune #includes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23752 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoThese instructions are now autogenerated
Chris Lattner [Sat, 15 Oct 2005 21:44:56 +0000 (21:44 +0000)]
These instructions are now autogenerated

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23751 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd a pattern for FSQRTS
Chris Lattner [Sat, 15 Oct 2005 21:44:15 +0000 (21:44 +0000)]
Add a pattern for FSQRTS

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23750 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoremove dead code
Chris Lattner [Sat, 15 Oct 2005 21:40:12 +0000 (21:40 +0000)]
remove dead code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23749 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoImplement the last major missing piece in the DAG isel generator: when emitting
Chris Lattner [Sat, 15 Oct 2005 21:34:21 +0000 (21:34 +0000)]
Implement the last major missing piece in the DAG isel generator: when emitting
a pattern match, make sure to emit the (minimal number of) type checks that
verify the pattern matches this specific instruction.  This allows FMA32
patterns to not match double expressions for example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23748 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoUse getExtLoad here instead of getNode, as extloads produce two values. This
Chris Lattner [Sat, 15 Oct 2005 20:24:07 +0000 (20:24 +0000)]
Use getExtLoad here instead of getNode, as extloads produce two values.  This
fixes a legalize failure on SPASS for itanium.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23747 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoremove broken SRA/rlwimi case
Chris Lattner [Sat, 15 Oct 2005 19:04:48 +0000 (19:04 +0000)]
remove broken SRA/rlwimi case

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23746 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRename PPC32*.h to PPC*.h
Chris Lattner [Fri, 14 Oct 2005 23:59:06 +0000 (23:59 +0000)]
Rename PPC32*.h to PPC*.h

This completes the grand PPC file renaming

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23745 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoMerge PPCJITInfo.h and PPC32JITInfo.h. Note that the PowerPCJITInfo
Chris Lattner [Fri, 14 Oct 2005 23:53:41 +0000 (23:53 +0000)]
Merge PPCJITInfo.h and PPC32JITInfo.h.  Note that the PowerPCJITInfo
and PPC32JITInfo classes should be merged.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23744 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRename PowerPC*.h to PPC*.h
Chris Lattner [Fri, 14 Oct 2005 23:51:18 +0000 (23:51 +0000)]
Rename PowerPC*.h to PPC*.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23743 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRename PowerPCInstrBuilder.h -> PPC*
Chris Lattner [Fri, 14 Oct 2005 23:45:43 +0000 (23:45 +0000)]
Rename PowerPCInstrBuilder.h -> PPC*

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23742 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoNuke the PowerPCTargetMachine.h header. Note that the PowerPCTargetMachine
Chris Lattner [Fri, 14 Oct 2005 23:44:05 +0000 (23:44 +0000)]
Nuke the PowerPCTargetMachine.h header.  Note that the PowerPCTargetMachine
still should be merged into the PPC32TargetMachine class

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23741 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRename PowerPC*.td -> PPC*.td
Chris Lattner [Fri, 14 Oct 2005 23:40:39 +0000 (23:40 +0000)]
Rename PowerPC*.td -> PPC*.td

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23740 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoThese are dead
Chris Lattner [Fri, 14 Oct 2005 23:38:51 +0000 (23:38 +0000)]
These are dead

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23739 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoEliminate PowerPC.td and PPC32.td, consolidating them into PPC.td
Chris Lattner [Fri, 14 Oct 2005 23:37:35 +0000 (23:37 +0000)]
Eliminate PowerPC.td and PPC32.td, consolidating them into PPC.td

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23738 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoLike the comment says...
Chris Lattner [Fri, 14 Oct 2005 22:48:24 +0000 (22:48 +0000)]
Like the comment says...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23737 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoNuke PowerPCInstrFormats.h, its contents are dead. Remove the definitions
Chris Lattner [Fri, 14 Oct 2005 22:44:13 +0000 (22:44 +0000)]
Nuke PowerPCInstrFormats.h, its contents are dead.  Remove the definitions
from the .td file that correspond to it

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23736 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoProperly split f32 and f64 into separate register classes for scalar sse fp
Nate Begeman [Fri, 14 Oct 2005 22:06:00 +0000 (22:06 +0000)]
Properly split f32 and f64 into separate register classes for scalar sse fp
fixing a bunch of nasty hackery

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23735 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRemove an unnecsesary file. PPC32 and PPC64 share architected registers.
Nate Begeman [Fri, 14 Oct 2005 18:58:46 +0000 (18:58 +0000)]
Remove an unnecsesary file.  PPC32 and PPC64 share architected registers.
We will decide with subtarget support whether we ever use an i64 register
class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23734 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoadd the integer truncate/extension operations
Chris Lattner [Fri, 14 Oct 2005 06:40:20 +0000 (06:40 +0000)]
add the integer truncate/extension operations

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23733 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoMake sure targets depend on TargetSelectionDAG.td
Chris Lattner [Fri, 14 Oct 2005 06:31:58 +0000 (06:31 +0000)]
Make sure targets depend on TargetSelectionDAG.td

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23732 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoThese are now autogenerated
Chris Lattner [Fri, 14 Oct 2005 06:26:29 +0000 (06:26 +0000)]
These are now autogenerated

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23731 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoNow that we have int/fp lattice values, implement the SDTCisOpSmallerThanOp
Chris Lattner [Fri, 14 Oct 2005 06:25:00 +0000 (06:25 +0000)]
Now that we have int/fp lattice values, implement the SDTCisOpSmallerThanOp
type constraint.  This lets tblgen realize that it doesn't need any dynamic
type checks for fextend/fround on PPC (and many other targets), because there
are only two fp types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23730 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFairly serious rework of the typing code to add new int/fp lattice values.
Chris Lattner [Fri, 14 Oct 2005 06:12:03 +0000 (06:12 +0000)]
Fairly serious rework of the typing code to add new int/fp lattice values.
Overall, no functionality change yet though.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23729 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agosimplify the code a bit
Chris Lattner [Fri, 14 Oct 2005 05:08:37 +0000 (05:08 +0000)]
simplify the code a bit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23728 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd patterns for FP round/extend
Chris Lattner [Fri, 14 Oct 2005 04:55:50 +0000 (04:55 +0000)]
Add patterns for FP round/extend

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23727 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoadd a new SDTCisOpSmallerThanOp type constraint, and implement fround/fextend in...
Chris Lattner [Fri, 14 Oct 2005 04:55:10 +0000 (04:55 +0000)]
add a new SDTCisOpSmallerThanOp type constraint, and implement fround/fextend in terms of it

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23726 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd basic support for recognizing a new SDTCisOpSmallerThanOp type constraint
Chris Lattner [Fri, 14 Oct 2005 04:53:53 +0000 (04:53 +0000)]
Add basic support for recognizing a new SDTCisOpSmallerThanOp type constraint

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23725 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoImplement a couple of new (important) features.
Chris Lattner [Fri, 14 Oct 2005 04:11:13 +0000 (04:11 +0000)]
Implement a couple of new (important) features.

1. If an operation has to be int or fp and the target only supports one
   int or fp type, relize that the op has to have that type.
2. If a target has operations on multiple types, do not emit matching code
   for patterns involving those operators, since we do not emit the code to
   check for them yet.  This prevents PPC from generating FP ops currently.

Also move some code around into more logical places.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23724 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoDo not let getLegalValueTypes return a list with duplicates in it
Chris Lattner [Fri, 14 Oct 2005 03:54:49 +0000 (03:54 +0000)]
Do not let getLegalValueTypes return a list with duplicates in it

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23723 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agofold sext_in_reg, sext_in_reg where both have the same VT. This was
Nate Begeman [Fri, 14 Oct 2005 01:29:07 +0000 (01:29 +0000)]
fold sext_in_reg, sext_in_reg where both have the same VT.  This was
popping up in Fourinarow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23722 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAllow $
Chris Lattner [Fri, 14 Oct 2005 01:28:34 +0000 (01:28 +0000)]
Allow $

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23721 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRelax the checking on zextload generation a bit, since as sabre pointed out
Nate Begeman [Fri, 14 Oct 2005 01:12:21 +0000 (01:12 +0000)]
Relax the checking on zextload generation a bit, since as sabre pointed out
you could be AND'ing with the result of a shift that shifts out all the
bits you care about, in addition to a constant.

Also, move over an add/sub_parts fold from legalize to the dag combiner,
where it works for things other than constants.  Woot!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23720 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix errors when compiling with -pedantic
Chris Lattner [Fri, 14 Oct 2005 00:33:05 +0000 (00:33 +0000)]
Fix errors when compiling with -pedantic

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23719 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix the trunc(load) case, finally allowing crafty and povray to pass
Chris Lattner [Thu, 13 Oct 2005 22:10:05 +0000 (22:10 +0000)]
Fix the trunc(load) case, finally allowing crafty and povray to pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23718 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix some bugs in (sext (load x))
Chris Lattner [Thu, 13 Oct 2005 21:52:31 +0000 (21:52 +0000)]
Fix some bugs in (sext (load x))

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23717 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoWhen ExpandOp'ing a [SZ]EXTLOAD, make sure to remember that the chain
Chris Lattner [Thu, 13 Oct 2005 21:44:47 +0000 (21:44 +0000)]
When ExpandOp'ing a [SZ]EXTLOAD, make sure to remember that the chain
is also legal.  Add support for ExpandOp'ing raw EXTLOADs too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23716 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoImplement PromoteOp for *EXTLOAD, allowing MallocBench/gs to Legalize
Chris Lattner [Thu, 13 Oct 2005 20:07:41 +0000 (20:07 +0000)]
Implement PromoteOp for *EXTLOAD, allowing MallocBench/gs to Legalize

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23715 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix the remaining DAGCombiner issues pointed out by sabre. This should fix
Nate Begeman [Thu, 13 Oct 2005 18:34:58 +0000 (18:34 +0000)]
Fix the remaining DAGCombiner issues pointed out by sabre.  This should fix
the remainder of the failures introduced by my patch last night.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23714 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix a minor bug in the dag combiner that broke pcompress2 and some other
Chris Lattner [Thu, 13 Oct 2005 18:16:34 +0000 (18:16 +0000)]
Fix a minor bug in the dag combiner that broke pcompress2 and some other
tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23713 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoUpdated to be less restrictive on what is matched
Patrick Meredith [Thu, 13 Oct 2005 17:31:30 +0000 (17:31 +0000)]
Updated to be less restrictive on what is matched

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23712 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd support to Legalize for expanding i64 sextload/zextload into hi and lo
Nate Begeman [Thu, 13 Oct 2005 17:15:37 +0000 (17:15 +0000)]
Add support to Legalize for expanding i64 sextload/zextload into hi and lo
parts. This should fix the crafty and signed long long unit test failure
on x86 last night.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23711 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoInhibit instructions from being pushed before function calls. This will
Jim Laskey [Thu, 13 Oct 2005 16:44:00 +0000 (16:44 +0000)]
Inhibit instructions from being pushed before function calls.  This will
minimize unnecessary spilling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23710 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoapparently one of the makefile changes changed libprofile.so to profile.so
Chris Lattner [Thu, 13 Oct 2005 16:34:24 +0000 (16:34 +0000)]
apparently one of the makefile changes changed libprofile.so to profile.so

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23709 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoThis script is used to remove nodes with the label %tmp(.#)* and all
Patrick Meredith [Thu, 13 Oct 2005 16:26:50 +0000 (16:26 +0000)]
This script is used to remove nodes with the label %tmp(.#)* and all
edges associated with said node from the dot files produced by
DSA.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23708 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoNate implemented this :)
Chris Lattner [Thu, 13 Oct 2005 06:04:34 +0000 (06:04 +0000)]
Nate implemented this :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23707 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoMove some Legalize functionality over to the DAGCombiner where it belongs.
Nate Begeman [Thu, 13 Oct 2005 03:11:28 +0000 (03:11 +0000)]
Move some Legalize functionality over to the DAGCombiner where it belongs.
Kill some dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23706 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoSimplifySelectCC is dead
Nate Begeman [Thu, 13 Oct 2005 03:10:46 +0000 (03:10 +0000)]
SimplifySelectCC is dead

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23705 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix a potential bug with two combine-to's back to back that chris pointed
Nate Begeman [Wed, 12 Oct 2005 23:18:53 +0000 (23:18 +0000)]
Fix a potential bug with two combine-to's back to back that chris pointed
out, where after the first CombineTo() call, the node the second CombineTo
wishes to replace may no longer exist.

Fix a very real bug with the truncated load optimization on little endian
targets, which do not need a byte offset added to the load.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23704 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoMore cool stuff for the dag combiner. We can now finally handle things
Nate Begeman [Wed, 12 Oct 2005 20:40:40 +0000 (20:40 +0000)]
More cool stuff for the dag combiner.  We can now finally handle things
like turning:

_foo:
        fctiwz f0, f1
        stfd f0, -8(r1)
        lwz r2, -4(r1)
        rlwinm r3, r2, 0, 16, 31
        blr

into
_foo:
        fctiwz f0,f1
        stfd f0,-8(r1)
        lhz r3,-2(r1)
        blr

Also removed an unncessary constraint from sra -> srl conversion, which
should take care of hte only reason we would ever need to handle sra in
MaskedValueIsZero, AFAIK.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23703 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFinally committing to the new scheduler. Still -sched=none by default.
Jim Laskey [Wed, 12 Oct 2005 18:29:35 +0000 (18:29 +0000)]
Finally committing to the new scheduler.  Still -sched=none by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23702 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdded graphviz/gv support for MF.
Jim Laskey [Wed, 12 Oct 2005 12:09:05 +0000 (12:09 +0000)]
Added graphviz/gv support for MF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23700 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agothis passes with the change in predicate
Chris Lattner [Tue, 11 Oct 2005 18:42:26 +0000 (18:42 +0000)]
this passes with the change in predicate

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23699 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix (hopefully the last) issue where LSR is nondeterminstic. When pulling
Chris Lattner [Tue, 11 Oct 2005 18:41:04 +0000 (18:41 +0000)]
Fix (hopefully the last) issue where LSR is nondeterminstic.  When pulling
out CSE's of base expressions it could build a result whose order was
nondet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23698 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix another problem where LSR was being nondeterminstic. Also remove elements
Chris Lattner [Tue, 11 Oct 2005 18:30:57 +0000 (18:30 +0000)]
Fix another problem where LSR was being nondeterminstic.  Also remove elements
from the end of a vector instead of the beginning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23697 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agolsr doesn't emit gep instructions anymore
Chris Lattner [Tue, 11 Oct 2005 18:28:48 +0000 (18:28 +0000)]
lsr doesn't emit gep instructions anymore

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23696 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix another lsr-is-nondeterministic case
Chris Lattner [Tue, 11 Oct 2005 18:17:57 +0000 (18:17 +0000)]
Fix another lsr-is-nondeterministic case

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23695 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix a powerpc crash on CodeGen/Generic/llvm-ct-intrinsics.ll
Chris Lattner [Tue, 11 Oct 2005 17:56:34 +0000 (17:56 +0000)]
Fix a powerpc crash on CodeGen/Generic/llvm-ct-intrinsics.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23694 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd a canonicalization that got lost, fixing PowerPC/fold-li.ll:SUB
Chris Lattner [Tue, 11 Oct 2005 06:07:15 +0000 (06:07 +0000)]
Add a canonicalization that got lost, fixing PowerPC/fold-li.ll:SUB

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23693 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoclean up some corner cases
Chris Lattner [Mon, 10 Oct 2005 23:00:08 +0000 (23:00 +0000)]
clean up some corner cases

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23692 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoImplement trivial DSE. If two stores are neighbors and store to the same
Chris Lattner [Mon, 10 Oct 2005 22:31:19 +0000 (22:31 +0000)]
Implement trivial DSE.  If two stores are neighbors and store to the same
location, replace them with a new store of the last value.  This occurs
in the same neighborhood in 197.parser, speeding it up about 1.5%

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23691 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd support for CombineTo, allowing the dag combiner to replace nodes with
Chris Lattner [Mon, 10 Oct 2005 22:04:48 +0000 (22:04 +0000)]
Add support for CombineTo, allowing the dag combiner to replace nodes with
multiple results.

Use this support to implement trivial store->load forwarding, implementing
CodeGen/PowerPC/store-load-fwd.ll.  Though this is the most simple case and
can be extended in the future, it is still useful.  For example, it speeds
up 197.parser by 6.2% by avoiding an LSU reject in xalloc:

        stw r6, lo16(l5_end_of_array)(r2)
        addi r2, r5, -4
        stwx r5, r4, r2
-       lwzx r5, r4, r2
-       rlwinm r5, r5, 0, 0, 30
        stwx r5, r4, r2
        lwz r2, -4(r4)
        ori r2, r2, 1

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23690 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agonew testcase
Chris Lattner [Mon, 10 Oct 2005 21:57:37 +0000 (21:57 +0000)]
new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23689 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoTeach the DAGCombiner several new tricks, teaching it how to turn
Nate Begeman [Mon, 10 Oct 2005 21:26:48 +0000 (21:26 +0000)]
Teach the DAGCombiner several new tricks, teaching it how to turn
sext_inreg into zext_inreg based on the signbit (fires a lot), srem into
urem, etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23688 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoA testcase sitting in my tree
Chris Lattner [Mon, 10 Oct 2005 21:21:36 +0000 (21:21 +0000)]
A testcase sitting in my tree

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23687 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix comment
Chris Lattner [Mon, 10 Oct 2005 16:52:03 +0000 (16:52 +0000)]
Fix comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23686 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd ISD::ADD to MaskedValueIsZero
Chris Lattner [Mon, 10 Oct 2005 16:51:40 +0000 (16:51 +0000)]
Add ISD::ADD to MaskedValueIsZero

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23685 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoThis function is now dead
Chris Lattner [Mon, 10 Oct 2005 16:49:22 +0000 (16:49 +0000)]
This function is now dead

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23684 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoEnable Nate's excellent DAG combiner work by default. This allows the
Chris Lattner [Mon, 10 Oct 2005 16:47:10 +0000 (16:47 +0000)]
Enable Nate's excellent DAG combiner work by default.  This allows the
removal of a bunch of ad-hoc and crufty code from SelectionDAG.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23682 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoThese definitions have been moved to common code.
Chris Lattner [Mon, 10 Oct 2005 06:01:00 +0000 (06:01 +0000)]
These definitions have been moved to common code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23681 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoPull DAG ISel generation nodes out of the PowerPC backend to where they
Chris Lattner [Mon, 10 Oct 2005 06:00:30 +0000 (06:00 +0000)]
Pull DAG ISel generation nodes out of the PowerPC backend to where they
can be used by other targets.  For those targets that want to use it,
have at.  :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23680 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoadd a todo for something I noticed
Chris Lattner [Sun, 9 Oct 2005 22:59:08 +0000 (22:59 +0000)]
add a todo for something I noticed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23679 91177308-0d34-0410-b5e6-96231b3b80d8

19 years ago(X & Y) & C == 0 if either X&C or Y&C are zero
Chris Lattner [Sun, 9 Oct 2005 22:12:36 +0000 (22:12 +0000)]
(X & Y) & C == 0 if either X&C or Y&C are zero

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23678 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoMake MaskedValueIsZero a bit more aggressive
Chris Lattner [Sun, 9 Oct 2005 22:08:50 +0000 (22:08 +0000)]
Make MaskedValueIsZero a bit more aggressive

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23677 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoThis seems useful from the original patch that added the function. If there is a...
Andrew Lenharth [Sun, 9 Oct 2005 20:11:35 +0000 (20:11 +0000)]
This seems useful from the original patch that added the function.  If there is a reason it is not useful on a RISC type target, let me know and I will pull it out

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23676 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix funky xcode indentation
Chris Lattner [Sun, 9 Oct 2005 06:36:35 +0000 (06:36 +0000)]
Fix funky xcode indentation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23674 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoHrm, you didn't see this.
Chris Lattner [Sun, 9 Oct 2005 06:24:02 +0000 (06:24 +0000)]
Hrm, you didn't see this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23673 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix a source of non-determinism in the backend: the order of processing
Chris Lattner [Sun, 9 Oct 2005 06:20:55 +0000 (06:20 +0000)]
Fix a source of non-determinism in the backend: the order of processing
IV strides dependend on the pointer order of the strides in memory.
Non-determinism is bad.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23672 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoWhen emiting a CopyFromReg and the source is already a vreg, do not bother
Chris Lattner [Sun, 9 Oct 2005 05:58:56 +0000 (05:58 +0000)]
When emiting a CopyFromReg and the source is already a vreg, do not bother
creating a new vreg and inserting a copy: just use the input vreg directly.

This speeds up the compile (e.g. about 5% on mesa with a debug build of llc)
by not adding a bunch of copies and vregs to be coallesced away.  On mesa,
for example, this reduces the number of intervals from 168601 to 129040
going into the coallescer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23671 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoDisable formation of rlwinm instructions from SRA bases. This fixes
Chris Lattner [Sun, 9 Oct 2005 05:36:17 +0000 (05:36 +0000)]
Disable formation of rlwinm instructions from SRA bases.  This fixes
the 177.mesa failure from last night, and fixes the
CodeGen/PowerPC/2005-10-08-ArithmeticRotate.ll regression test I added.
If this code cannot be fixed, it should be removed for good, but I'll leave
it to Nate to decide its fate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23670 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoTestcase that is miscompiled by the ppc backend
Chris Lattner [Sun, 9 Oct 2005 05:31:47 +0000 (05:31 +0000)]
Testcase that is miscompiled by the ppc backend

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23669 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRemove another unused file. Preparing for the great "enable i64 on ppc32"
Nate Begeman [Sat, 8 Oct 2005 01:32:34 +0000 (01:32 +0000)]
Remove another unused file.  Preparing for the great "enable i64 on ppc32"
merge, and using subtarget info for ptr size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23668 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoremove a comma to compile with pedantic gcc
Chris Lattner [Sat, 8 Oct 2005 01:24:19 +0000 (01:24 +0000)]
remove a comma to compile with pedantic gcc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23667 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRemove a file that is no longer used
Nate Begeman [Sat, 8 Oct 2005 01:21:27 +0000 (01:21 +0000)]
Remove a file that is no longer used

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23666 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoLo and behold, the last bits of SelectionDAG.cpp have been moved over.
Nate Begeman [Sat, 8 Oct 2005 00:29:44 +0000 (00:29 +0000)]
Lo and behold, the last bits of SelectionDAG.cpp have been moved over.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23665 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoWhen preselecting, favor things that have low depth to select first. This
Chris Lattner [Fri, 7 Oct 2005 22:10:27 +0000 (22:10 +0000)]
When preselecting, favor things that have low depth to select first.  This
is faster and uses less stack space.  This reduces our stack requirement
enough to compile sixtrack, and though it's a hack, should be enough until
we switch to iterative isel

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23664 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoremove debugging code
Chris Lattner [Fri, 7 Oct 2005 15:31:26 +0000 (15:31 +0000)]
remove debugging code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23663 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoimplement CodeGen/PowerPC/div-2.ll:test2-4 by propagating zero bits through
Chris Lattner [Fri, 7 Oct 2005 15:30:32 +0000 (15:30 +0000)]
implement CodeGen/PowerPC/div-2.ll:test2-4 by propagating zero bits through
C-X's

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23662 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoThese don't need to be sdivs.
Chris Lattner [Fri, 7 Oct 2005 15:27:12 +0000 (15:27 +0000)]
These don't need to be sdivs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23661 91177308-0d34-0410-b5e6-96231b3b80d8