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Author SHA1 Message Date
Chris Lattner
d1cdc7028c Add patterns for some new instructions, allowing the use of the ineg fragment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23266 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-08 17:01:54 +00:00
Chris Lattner
e29dca4d83 add some missing PPC backend files 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23265 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-07 23:57:00 +00:00
Chris Lattner
777fd2742d Add tblgen fpcmp and the nightly tester to the utils folder 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23264 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-07 23:53:49 +00:00
Chris Lattner
8c65344a15 ignore generated files 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23263 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-07 23:47:44 +00:00
Chris Lattner
19c0907ba1 Remove some cases handled by the generated portion of the isel 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23262 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-07 23:45:15 +00:00
Chris Lattner
54cb8fd814 Initial cut of the dag isel generator. This is still very much a work in 
progress.  It correctly parses instructions and pattern fragments and glues
together pattern fragments into instructions.

The only code it generates currently is some boilerplate code for things
like the EntryNode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23261 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-07 23:44:43 +00:00
Nate Begeman
9980119270 Another round of dag combiner changes. This fixes some missing XOR folds 
as well as fixing how we replace old values with new values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23260 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-07 23:25:52 +00:00
Chris Lattner
dc6e2e0a5f Fix a bug that Tzu-Chien Chiu noticed: live interval analysis does NOT 
preserve livevar


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23259 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-07 17:34:39 +00:00
Nate Begeman
f89d78d7c7 Implement a common missing fold, (add (add x, c1), c2) -> (add x, c1+c2). 
This restores all of stanford to being identical with and without the dag
combiner with the add folding turned off in sd.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23258 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-07 16:09:19 +00:00
Chris Lattner
c98d823649 On non-apple systems, when using -march=ppc32, do not print: 
'' is not a recognized processor for this target (ignoring processor)

Default to "generic" instead of "" for the default CPU.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23257 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-07 05:45:33 +00:00
Chris Lattner
3eb3369a25 Print: 
'' is not a recognized processor for this target (ignoring processor)

instead of:

 is not a recognized processor for this target (ignoring processor)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23256 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-07 05:44:14 +00:00
Chris Lattner
1e111c7bbb Fix a bug nate ran into with replacealluseswith. In the recursive cse case, 
we were losing a node, causing an assertion to fail.  Now we eagerly delete
discovered CSE's, and provide an optional vector to keep track of these
discovered equivalences.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23255 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-07 05:37:01 +00:00
Chris Lattner
fde3f3061d Add a new argument to ReplaceAllUsesWith to keep track of nodes deleted by 
this method


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23254 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-07 05:36:18 +00:00
Nate Begeman
2300f55046 Add an option to the DAG Combiner to enable it for beta runs, and turn on 
that option for PowerPC's beta.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23253 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-07 00:15:36 +00:00
Chris Lattner
6b5d9cdfcf Rename a class. These files are being migrated to the new isel and I want to 
reuse the names


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23252 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 22:51:34 +00:00
Nate Begeman
eeff9b055c Test the new 64bit i64<->fp functionality 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23251 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 22:23:15 +00:00
Nate Begeman
c09eeec0eb Implement i64<->fp using the fctidz/fcfid instructions on PowerPC when we 
are allowed to generate 64-bit-only PowerPC instructions for 32 bit hosts,
such as the PowerPC 970.

This speeds up 189.lucas from 81.99 to 32.64 seconds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23250 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 22:03:27 +00:00
Chris Lattner
46a780056b regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23249 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 21:23:27 +00:00
Chris Lattner
9978332473 Tighten up the specification to allow TableGen/nested-comment.td to pass 
(fixing a bug where / in a /* */ comment would cause it to not close).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23248 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 21:23:09 +00:00
Chris Lattner
5838b21cde new testcase: tblgen should grok this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23247 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 21:22:15 +00:00
Andrew Lenharth
46a776e664 Fix up the AssertXext problem, as well as adding it at calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23246 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 17:00:23 +00:00
Nate Begeman
92cce90c66 Add note about future optimization noted in the ppc compiler writer's guide 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23245 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 15:30:48 +00:00
Nate Begeman
d401dff796 Add accessor for 64bit flag, so that we can tell when it is safe to 
generate the fun in-register fp<->long instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23244 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 15:30:12 +00:00
Nate Begeman
83e75ecd27 Next round of DAGCombiner changes. This version now passes all the tests 
I have run so far when run before Legalize.  It still needs to pick up the
SetCC folds, and nodes that use SetCC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23243 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 04:43:02 +00:00
Chris Lattner
2286cab238 Add a requirement, patch contributed by Henrik Bach. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23242 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 04:07:15 +00:00
Andrew Lenharth
f71df33671 revert part of the last change, should fix regressions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23241 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-04 06:12:19 +00:00
Chris Lattner
e147ceb2fa explicitly specify an operands list for patterns with inputs (e.g. neg) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23240 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-03 01:28:40 +00:00
Chris Lattner
6cd40d5888 include the dag isel fragment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23239 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-03 01:17:22 +00:00
Chris Lattner
bb38b6f8c0 ask for a dag isel 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23238 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-03 01:15:41 +00:00
Chris Lattner
f31f09e67c allow for a target to ask for a dag isel 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23237 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-03 01:15:25 +00:00
Chris Lattner
4a24c645c8 Add an option and stuff implementation of a dag isel emitter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23236 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-03 01:14:03 +00:00
Chris Lattner
6a8a21ced4 Fix a checking failure in gs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23235 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-03 01:04:40 +00:00
Chris Lattner
25dae727f3 Change the isel to not break out of the big giant switch. Instead, the 
switch should never be exited, so its bottom is now unreachable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23234 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-03 00:53:47 +00:00
Chris Lattner
7cd09cf942 rearrange logical ops to group them together more consistently. 
Define the PatFrag class which can be used to define subpatterns to match
things with.  Define 'not', and use it to define the patterns for andc,
nand, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23233 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-03 00:21:51 +00:00
Chris Lattner
6159fb20c2 Add AND/OR/XOR 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23232 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 22:35:53 +00:00
Nate Begeman
646d7e2727 Next round of DAG Combiner changes. Just need to support multiple return 
values, and then we should be able to hook it up.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23231 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 21:18:40 +00:00
Chris Lattner
218a15d02c Add some initial patterns to simple binary instructions, though they 
currently don't do anything.  This elides patterns for binary operators
that ping on the carry flag, since we don't model it yet.

This patch also removes PPC::SUB, because it is dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23230 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 21:18:00 +00:00
Chris Lattner
6fdcb250d5 Clean up some code from the last checkin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23229 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 20:32:45 +00:00
Chris Lattner
99c25b86aa Fix a bug in legalize where it would emit two calls to libcalls that return 
i64 values on targets that need that expanded to 32-bit registers.  This fixes
PowerPC/2005-09-02-LegalizeDuplicatesCalls.ll and speeds up 189.lucas from
taking 122.72s to 81.96s on my desktop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23228 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 20:26:58 +00:00
Chris Lattner
c789701360 Test that converting from double to int64 results in one libcall, not one 
and a dead one.  This is a legalize bug


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23227 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 20:24:10 +00:00
Chris Lattner
73e37c35be turn on dag isel by default 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23226 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 19:53:54 +00:00
Chris Lattner
70b9b1098a Make sure to auto-cse nullary ops 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23224 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 19:36:17 +00:00
Chris Lattner
ab2eb66f07 add a map for nullary ops 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23223 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 19:35:42 +00:00
Jim Laskey
839615a510 Add help support for -mcpu and -mattr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23222 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 19:27:43 +00:00
Chris Lattner
6621e3b963 Fix some buggy logic where we would try to remove nodes with two operands 
from the binary ops map, even if they had multiple results.  This latent bug
caused a few failures with the dag isel last night.

To prevent stuff like this from happening in the future, add some really
strict checking to make sure that the CSE maps always match up with reality!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23221 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 19:15:44 +00:00
Andrew Lenharth
aa38ce436b Pull out Lowering in preperation for multiple ISels. Oh, and get rid of some stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23220 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 18:46:02 +00:00
Chris Lattner
fd88f64934 Don't create zero sized stack objects even for array allocas with a zero 
number of elements.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23219 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 18:41:28 +00:00
Chris Lattner
1e9de3ed2d Decouple fsqrt from gpul optimizations, implementing fsqrt.ll. 
Remove the -enable-gpopt option which is subsumed by feature flags.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23218 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 18:33:05 +00:00
Chris Lattner
446a4eaee5 new testcase to ensure fsqrt is generated for correct subtargets only, and 
that the fsqrt feature works.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23217 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 18:32:22 +00:00
Chris Lattner
0271077eba Move a bunch of non-deprecated methods above the "deprecated line" 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23216 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 18:16:20 +00:00