Chris Lattner
c38959ff77
Feedback from Nate.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23767 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-17 03:09:31 +00:00
Chris Lattner
df921f0709
Document -view-isel-dags and -view-sched-dags
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23766 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-17 01:40:33 +00:00
Chris Lattner
f623a08441
Add notes about MF.viewCFG() and friends.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23765 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-17 01:36:23 +00:00
Chris Lattner
854077d3a5
add a trivial fold
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23764 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-17 01:07:11 +00:00
Chris Lattner
7a025c8b4d
Add a bunch of info about the isel autogenerator. Review appreciated!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23763 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-16 20:02:19 +00:00
Chris Lattner
32e89f2b92
Fill this out some more. Add description of MBB/MF. Fix some broken links,
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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
2005-10-16 18:31:08 +00:00
Chris Lattner
47adebb3e3
Add a stub for the TargetSubtarget class. Jim, please fill a blurb in here
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when you get a chance.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23761 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-16 17:06:07 +00:00
Chris Lattner
c3b05403b7
Update this significantly, mention subtarget and isel generation support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23760 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-16 17:03:22 +00:00
Nate Begeman
21e463b2bf
More PPC32 -> PPC changes, as well as merging some classes that were
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redundant after the change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23759 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-16 05:39:50 +00:00
Chris Lattner
5024d93c8b
Make the generated code significantly more memory efficient, by using
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SelectNodeTo instead of getTargetNode when possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23758 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-16 01:41:58 +00:00
Chris Lattner
e35d3bb84e
update this a little bit to talk about the dag combiner and remove inaccuracies.
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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
2005-10-16 00:36:38 +00:00
Chris Lattner
750dbd5950
Fix this logic.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23756 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-15 22:35:40 +00:00
Chris Lattner
85d63bbff7
Add a case we were missing that was causing us to fail CodeGen/PowerPC/rlwinm.ll:test3
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23755 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-15 22:18:08 +00:00
Nate Begeman
34f342e36f
Remove some dead code now that the dag combiner exists.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23754 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-15 22:08:02 +00:00
Chris Lattner
4cb5a1b896
Remove some dead code: the ORI/ORIS cases are autogen'd. This makes
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SelectIntImmediateExpr dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23753 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-15 22:06:18 +00:00
Chris Lattner
de123822e5
prune #includes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23752 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-15 21:58:54 +00:00
Chris Lattner
75c9f67370
These instructions are now autogenerated
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23751 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-15 21:44:56 +00:00
Chris Lattner
e0b2e6372f
Add a pattern for FSQRTS
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23750 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-15 21:44:15 +00:00
Chris Lattner
651dea74f6
remove dead code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23749 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-15 21:40:12 +00:00
Chris Lattner
7e82f1322c
Implement the last major missing piece in the DAG isel generator: when emitting
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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
2005-10-15 21:34:21 +00:00
Chris Lattner
8136cdae60
Use getExtLoad here instead of getNode, as extloads produce two values. This
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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
2005-10-15 20:24:07 +00:00
Chris Lattner
d242419e17
remove broken SRA/rlwimi case
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23746 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-15 19:04:48 +00:00
Chris Lattner
16e71f2f70
Rename PPC32*.h to PPC*.h
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This completes the grand PPC file renaming
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23745 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 23:59:06 +00:00
Chris Lattner
b9459b731a
Merge PPCJITInfo.h and PPC32JITInfo.h. Note that the PowerPCJITInfo
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and PPC32JITInfo classes should be merged.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23744 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 23:53:41 +00:00
Chris Lattner
2668959b88
Rename PowerPC*.h to PPC*.h
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23743 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 23:51:18 +00:00
Chris Lattner
26bd0d48a1
Rename PowerPCInstrBuilder.h -> PPC*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23742 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 23:45:43 +00:00
Chris Lattner
ec4b73cb09
Nuke the PowerPCTargetMachine.h header. Note that the PowerPCTargetMachine
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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
2005-10-14 23:44:05 +00:00
Chris Lattner
f379997adc
Rename PowerPC*.td -> PPC*.td
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23740 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 23:40:39 +00:00
Chris Lattner
f1ed100bc4
These are dead
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23739 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 23:38:51 +00:00
Chris Lattner
4c7b43b43f
Eliminate PowerPC.td and PPC32.td, consolidating them into PPC.td
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23738 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 23:37:35 +00:00
Chris Lattner
e87bc1f3a8
Like the comment says...
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23737 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 22:48:24 +00:00
Chris Lattner
617742b1b8
Nuke PowerPCInstrFormats.h, its contents are dead. Remove the definitions
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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
2005-10-14 22:44:13 +00:00
Nate Begeman
14e2cf62f4
Properly split f32 and f64 into separate register classes for scalar sse fp
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fixing a bunch of nasty hackery
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23735 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 22:06:00 +00:00
Nate Begeman
e0de44adba
Remove an unnecsesary file. PPC32 and PPC64 share architected registers.
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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
2005-10-14 18:58:46 +00:00
Chris Lattner
444215dddc
add the integer truncate/extension operations
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23733 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 06:40:20 +00:00
Chris Lattner
0b61677ae0
Make sure targets depend on TargetSelectionDAG.td
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23732 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 06:31:58 +00:00
Chris Lattner
3f31d4304c
These are now autogenerated
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23731 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 06:26:29 +00:00
Chris Lattner
603d78c9de
Now that we have int/fp lattice values, implement the SDTCisOpSmallerThanOp
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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
2005-10-14 06:25:00 +00:00
Chris Lattner
3c7e18d690
Fairly serious rework of the typing code to add new int/fp lattice values.
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Overall, no functionality change yet though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23729 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 06:12:03 +00:00
Chris Lattner
e0583b1b92
simplify the code a bit
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23728 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 05:08:37 +00:00
Chris Lattner
7cb6491a0d
Add patterns for FP round/extend
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23727 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 04:55:50 +00:00
Chris Lattner
13664a6194
add a new SDTCisOpSmallerThanOp type constraint, and implement fround/fextend in terms of it
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23726 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 04:55:10 +00:00
Chris Lattner
03ebd802c7
Add basic support for recognizing a new SDTCisOpSmallerThanOp type constraint
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23725 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 04:53:53 +00:00
Chris Lattner
0ee7cff4fb
Implement a couple of new (important) features.
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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
2005-10-14 04:11:13 +00:00
Chris Lattner
75ee2eb4e2
Do not let getLegalValueTypes return a list with duplicates in it
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23723 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 03:54:49 +00:00
Nate Begeman
216def8ecf
fold sext_in_reg, sext_in_reg where both have the same VT. This was
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popping up in Fourinarow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23722 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 01:29:07 +00:00
Chris Lattner
b4871ad694
Allow $
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23721 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 01:28:34 +00:00
Nate Begeman
5054f16212
Relax the checking on zextload generation a bit, since as sabre pointed out
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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
2005-10-14 01:12:21 +00:00
Chris Lattner
40f44f1f58
Fix errors when compiling with -pedantic
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23719 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 00:33:05 +00:00
Chris Lattner
24edbb7a6c
Fix the trunc(load) case, finally allowing crafty and povray to pass
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23718 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-13 22:10:05 +00:00