Jim Laskey
62908083eb
We seem to have settled to __DWARF for section name.
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llvm-svn: 26015
2006-02-06 14:16:15 +00:00
Evan Cheng
2af9230f1e
At the end of isel, select a replacement node for each handle that does not
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have one. This can happen if a load's real uses are dead (i.e. they do not
have uses themselves).
llvm-svn: 26014
2006-02-06 08:12:55 +00:00
Evan Cheng
6f1778d4e1
Name change.
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llvm-svn: 26013
2006-02-06 06:03:35 +00:00
Evan Cheng
080996281c
- Update load folding checks to match those auto-generated by tblgen.
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- Manually select SDOperand's returned by TryFoldLoad which make up the
load address.
llvm-svn: 26012
2006-02-06 06:02:33 +00:00
Evan Cheng
09b5e544a9
Handle HANDLENODE: just return itself.
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llvm-svn: 26011
2006-02-05 08:46:14 +00:00
Evan Cheng
9fb67ea859
Complex pattern isel code shouldn't select nodes.
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llvm-svn: 26010
2006-02-05 08:45:01 +00:00
Chris Lattner
c0012f8818
Fix the Sparc backend with Evan's recent tblgen changes
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llvm-svn: 26009
2006-02-05 08:35:50 +00:00
Chris Lattner
5a9a874f44
SparcV8 -> Sparc
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llvm-svn: 26008
2006-02-05 08:30:45 +00:00
Chris Lattner
da908d19fd
This xform isn't safe
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llvm-svn: 26007
2006-02-05 08:26:16 +00:00
Nate Begeman
2fe9dfedf0
Back out previous commit, it isn't safe.
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llvm-svn: 26006
2006-02-05 08:23:00 +00:00
Nate Begeman
c0e2bb488a
fold c1 << (x + c2) into (c1 << c2) << x. fix a warning.
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llvm-svn: 26005
2006-02-05 08:07:24 +00:00
Chris Lattner
9898b81e27
some stuff is done
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llvm-svn: 26004
2006-02-05 07:54:37 +00:00
Chris Lattner
807c68d572
Turn A % (C << N), where C is 2^k, into A & ((C << N)-1) [urem only].
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Turn A / (C1 << N), where C1 is "1<<C2" into A >> (N+C2) [udiv only].
Tested with: rem.ll:test5, div.ll:test10
llvm-svn: 26003
2006-02-05 07:54:04 +00:00
Chris Lattner
bbd8dc6edd
new testcases
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llvm-svn: 26002
2006-02-05 07:52:47 +00:00
Nate Begeman
c93c3d11d6
Handle urem by shifted powers of 2.
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llvm-svn: 26001
2006-02-05 07:36:48 +00:00
Nate Begeman
0291708a49
handle combining A / (B << N) into A >>u (log2(B)+N) when B is a power of 2
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llvm-svn: 26000
2006-02-05 07:20:23 +00:00
Evan Cheng
973e4051d6
Use SelectRoot() as the entry to any tblgen based isel.
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llvm-svn: 25998
2006-02-05 06:51:51 +00:00
Evan Cheng
fb902782e8
Use SelectRoot() as entry of any tblgen based isel.
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llvm-svn: 25997
2006-02-05 06:46:41 +00:00
Chris Lattner
42160869d1
Encourage use of the V8 ABI over the V9 ABI.
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llvm-svn: 25996
2006-02-05 06:44:17 +00:00
Evan Cheng
0b5d4a10a9
Allow more loads to be folded which were previously prevented from happening
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due to ordering issue. i.e. they were selected for chain use first.
Now at load select time, check if it is being selected for a chain use and if
it has only a single real use. If so, return a HANDLENODE (with the load as
its operand) in its place and record it.
When it is folded or the load is selected for a real use, the isel records it
as the replacement for the HANDLENODE. The replacement is done when all nodes
are selected.
This scheme exposed a couple of problems where cycles can happen. (See comments
in EmitMatchCode() for descriptions of the problems and their workaround /
solutions.) These problems have been resolved with a small compile time
penality.
llvm-svn: 25995
2006-02-05 06:43:12 +00:00
Chris Lattner
44b6352988
This document is out of date. :(
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llvm-svn: 25994
2006-02-05 06:40:12 +00:00
Chris Lattner
fe5f01cca6
V8 -> Sparc
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llvm-svn: 25993
2006-02-05 06:39:36 +00:00
Chris Lattner
1d15bef6ac
Remove the SparcV8 backend. It has been renamed to be the Sparc backend.
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llvm-svn: 25992
2006-02-05 06:33:29 +00:00
Chris Lattner
1e16099e9f
remove V8 reference
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llvm-svn: 25991
2006-02-05 06:32:59 +00:00
Evan Cheng
d46a7fc65a
* Added SDNode::isOnlyUse().
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* Fix hasNUsesOfValue(), it should be const.
llvm-svn: 25990
2006-02-05 06:29:23 +00:00
Chris Lattner
ec37ba5968
SparcV8 -> Sparc
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llvm-svn: 25989
2006-02-05 06:26:43 +00:00
Chris Lattner
f6080adc01
SparcV8 -> Sparc
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llvm-svn: 25988
2006-02-05 05:56:51 +00:00
Chris Lattner
e4556b0928
These were moved to ../SPARC
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llvm-svn: 25987
2006-02-05 05:53:48 +00:00
Chris Lattner
7048217c85
move V8 testcases here
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llvm-svn: 25986
2006-02-05 05:52:55 +00:00
Chris Lattner
834685ef3a
Rename SPARC V8 target to be the LLVM SPARC target.
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llvm-svn: 25985
2006-02-05 05:50:24 +00:00
Chris Lattner
59378e7675
add a note
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llvm-svn: 25984
2006-02-05 05:27:35 +00:00
Evan Cheng
c23d3cd6c3
Re-commit the last bit of change that was backed out.
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llvm-svn: 25983
2006-02-05 05:25:07 +00:00
Evan Cheng
d5d3d7ad9e
Re-committing the last bit of change. It shouldn't break PPC this time.
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llvm-svn: 25982
2006-02-05 05:22:18 +00:00
Chris Lattner
4efafdb7f4
make sure that global doubles are aligned to 8 bytes
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llvm-svn: 25981
2006-02-05 01:46:49 +00:00
Chris Lattner
74fd4905bc
Use getPreferredAlignmentLog.
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llvm-svn: 25980
2006-02-05 01:45:04 +00:00
Chris Lattner
085a324bfc
Use the asmprinter to find out what the preferred alignment of a global is.
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This patch speeds up 172.mgrid from 31.81s to 11.39s on darwin/ppc.
Many many thanks to Nate for tracking down the root cause of the issue.
llvm-svn: 25979
2006-02-05 01:30:45 +00:00
Chris Lattner
d2c4e9151e
Implement the AsmPrinter::getPreferredAlignmentLog method.
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llvm-svn: 25978
2006-02-05 01:29:18 +00:00
Chris Lattner
682b5a2626
add a new method, getPreferredAlignmentLog.
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llvm-svn: 25977
2006-02-05 01:24:06 +00:00
Andrew Lenharth
b28db2290a
linkage fix for weak functions
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llvm-svn: 25976
2006-02-04 19:13:09 +00:00
Jeff Cohen
4f433dafa5
Fix VC++ warning.
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llvm-svn: 25975
2006-02-04 16:20:31 +00:00
Chris Lattner
e4dc660cbb
Use SCEVExpander::InsertCastOfTo instead of our own code. This reduces
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#LLVM LOC, and auto-cse's cast instructions.
llvm-svn: 25974
2006-02-04 09:52:43 +00:00
Chris Lattner
151eb931ec
Pull the InsertCastOfTo out of the header, implement CSE'ing of arguments.
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llvm-svn: 25973
2006-02-04 09:51:53 +00:00
Chris Lattner
d92225434a
Refactor a bunch of code into a non-inlined method
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llvm-svn: 25972
2006-02-04 09:51:33 +00:00
Chris Lattner
15ab5c6d0c
Temporarily revert this patch, which probably breaks with the
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tblgen patch reverted.
llvm-svn: 25971
2006-02-04 09:24:16 +00:00
Chris Lattner
951217976d
Temporarily revert the last change, which breaks PPC and other targets that
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DO select things.
llvm-svn: 25970
2006-02-04 09:23:06 +00:00
Chris Lattner
964e9b66f8
Value# select instructions, allowing -gcse to remove duplicates
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llvm-svn: 25969
2006-02-04 09:15:29 +00:00
Evan Cheng
6a366c5eda
Complex pattern's custom matcher should not call Select() on any operands.
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Select them afterwards if it returns true.
llvm-svn: 25968
2006-02-04 08:50:49 +00:00
Chris Lattner
0ddab3fc99
Custom lower VAARG for the case when we are doing vaarg(double). In this
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case, the double being loaded may not be 8-byte aligned, so we have to use
our standard bit_convert game.
llvm-svn: 25967
2006-02-04 08:31:30 +00:00
Chris Lattner
6466bb23bc
Fix a nasty typo that broke functions with big stack frames.
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llvm-svn: 25966
2006-02-04 08:04:21 +00:00
Chris Lattner
bb656b4730
fix a bug in my last checkin
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llvm-svn: 25965
2006-02-04 07:48:46 +00:00