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467 Commits

Author SHA1 Message Date
Chris Lattner 62c3484e43 Switch targets over to using SelectionDAG::getCALLSEQ_START to create 
CALLSEQ_START nodes.

llvm-svn: 26143
 2006-02-13 09:00:43 +00:00
Evan Cheng d1b82d8db0 Match getTargetNode() changes (now return SDNode* instead of SDOperand). 
llvm-svn: 26085
 2006-02-09 07:17:49 +00:00
Evan Cheng 6dc90ca172 Change Select() from 
SDOperand Select(SDOperand N);
to
void Select(SDOperand &Result, SDOperand N);

llvm-svn: 26067
 2006-02-09 00:37:58 +00:00
Andrew Lenharth f5b7f16259 see what this allignment thing will do 
llvm-svn: 26017
 2006-02-06 17:15:17 +00:00
Evan Cheng 54cb1833a4 Use SelectRoot() as entry of any tblgen based isel. 
llvm-svn: 25997
 2006-02-05 06:46:41 +00:00
Andrew Lenharth 1fcff15f86 linkage fix for weak functions 
llvm-svn: 25976
 2006-02-04 19:13:09 +00:00
Andrew Lenharth 1318240fd0 isStoreToStackSlot 
llvm-svn: 25925
 2006-02-03 03:07:37 +00:00
Chris Lattner bb53acd03c Move isLoadFrom/StoreToStackSlot from MRegisterInfo to TargetInstrInfo,a far more logical place. Other methods should also be moved if anyoneis interested. :) 
llvm-svn: 25913
 2006-02-02 20:12:32 +00:00
Andrew Lenharth 4b1c726fbb Add immediate forms of cmov and remove some cruft 
llvm-svn: 25882
 2006-02-01 19:37:33 +00:00
Nate Begeman 7e7f439f85 Fix some of the stuff in the PPC README file, and clean up legalization 
of the SELECT_CC, BR_CC, and BRTWOWAY_CC nodes.

llvm-svn: 25875
 2006-02-01 07:19:44 +00:00
Evan Cheng 32be2dc0af Allow the specification of explicit alignments for constant pool entries. 
llvm-svn: 25855
 2006-01-31 22:23:14 +00:00
Chris Lattner b5f0ba6051 Update alpha to reflect recent constantfp legalize changes. It's not clear 
why all this code isn't autogenerated. :(

llvm-svn: 25770
 2006-01-29 06:25:22 +00:00
Chris Lattner 1b09c6ba87 cmovle != cmovlt 
llvm-svn: 25761
 2006-01-29 03:47:30 +00:00
Nate Begeman 595ec734fc Implement Promote for VAARG, and allow it to be custom promoted for people 
who don't want the default behavior (Alpha).

llvm-svn: 25726
 2006-01-28 03:14:31 +00:00
Chris Lattner 2c00db82bd Switch to AlphaISD::CALL instead of ISD::CALL 
llvm-svn: 25718
 2006-01-27 23:39:00 +00:00
Evan Cheng d98701c639 Subtarget feature can now set any variable to any value 
llvm-svn: 25678
 2006-01-27 08:09:42 +00:00
Chris Lattner 1240574609 PHI and INLINEASM are now built-in instructions provided by Target.td 
llvm-svn: 25674
 2006-01-27 01:46:15 +00:00
Andrew Lenharth 0a01374299 minor renaming 
llvm-svn: 25640
 2006-01-26 03:24:15 +00:00
Andrew Lenharth 153f808f53 allow R28 to be used for frame calculations without entirely removing it from circulation 
llvm-svn: 25639
 2006-01-26 03:22:07 +00:00
Andrew Lenharth 5c3dd5fafd oops 
llvm-svn: 25623
 2006-01-25 23:33:32 +00:00
Andrew Lenharth a852660e74 forgot one 
llvm-svn: 25620
 2006-01-25 22:28:07 +00:00
Andrew Lenharth 93fd315292 make things compile again 
llvm-svn: 25614
 2006-01-25 21:54:38 +00:00
Nate Begeman e74795cd70 First part of bug 680: 
Remove TLI.LowerVA* and replace it with SDNodes that are lowered the same
way as everything else.

llvm-svn: 25606
 2006-01-25 18:21:52 +00:00
Andrew Lenharth 94150f0666 maintaining stackpointer alignment. Perhaps it doesn't matter 
llvm-svn: 25592
 2006-01-25 01:51:08 +00:00
Andrew Lenharth c0bf377f98 bye bye Pattern ISEL 
llvm-svn: 25553
 2006-01-23 21:56:07 +00:00
Andrew Lenharth fef7dec9cc added stores to lsmark 
llvm-svn: 25552
 2006-01-23 21:51:33 +00:00
Andrew Lenharth 208bbe9ca9 fix up more lsmark stuff 
llvm-svn: 25550
 2006-01-23 21:23:26 +00:00
Andrew Lenharth ba97ea52d4 yea, lowering this stuff will basically work 
llvm-svn: 25549
 2006-01-23 20:59:50 +00:00
Chris Lattner de02d7727f Add explicit #includes of <iostream> 
llvm-svn: 25515
 2006-01-22 23:41:00 +00:00
Andrew Lenharth 5df67bcd50 typo 
llvm-svn: 25464
 2006-01-19 21:10:38 +00:00
Andrew Lenharth 688ea707d8 nasty nasty patterns 
llvm-svn: 25463
 2006-01-19 20:49:37 +00:00
Andrew Lenharth cfd9c6e526 fix short immediate loads 
llvm-svn: 25371
 2006-01-16 21:41:39 +00:00
Andrew Lenharth 34380b7675 stack and rpcc 
llvm-svn: 25369
 2006-01-16 21:22:38 +00:00
Andrew Lenharth 81b108c54d Friendly names 
llvm-svn: 25364
 2006-01-16 19:53:25 +00:00
Nate Begeman 2fba8a3aaa bswap implementation 
llvm-svn: 25312
 2006-01-14 03:14:10 +00:00
Andrew Lenharth 045371a744 make DAG isel the default 
llvm-svn: 25282
 2006-01-13 18:49:47 +00:00
Chris Lattner 8e2f52e645 expand unsupported stacksave/stackrestore nodes 
llvm-svn: 25272
 2006-01-13 02:42:53 +00:00
Nate Begeman 1b8121b227 Add bswap, rotl, and rotr nodes 
Add dag combiner code to recognize rotl, rotr
Add ppc code to match rotl

Targets should add rotl/rotr patterns if they have them

llvm-svn: 25222
 2006-01-11 21:21:00 +00:00
Andrew Lenharth 91eda00a7a this pattern was bogus 
llvm-svn: 25197
 2006-01-11 03:33:06 +00:00
Andrew Lenharth 599e73f21c Int immediate loading fix 
llvm-svn: 25182
 2006-01-10 19:12:47 +00:00
Andrew Lenharth 32e7d1ed4a proper branch not equal sequence 
llvm-svn: 25159
 2006-01-09 19:49:58 +00:00
Andrew Lenharth 346b4120af make 0 codegen much better 
llvm-svn: 25131
 2006-01-06 19:41:51 +00:00
Chris Lattner da56ae98a9 unbreak the build, these are now in TargetSelectionDAG.td 
llvm-svn: 25109
 2006-01-05 04:48:15 +00:00
Jim Laskey deeafa0f00 Had expand logic backward. 
llvm-svn: 25105
 2006-01-05 01:47:43 +00:00
Jim Laskey 762e9ec06c Added initial support for DEBUG_LABEL allowing debug specific labels to be 
inserted in the code.

llvm-svn: 25104
 2006-01-05 01:25:28 +00:00
Andrew Lenharth eaf5ed1438 typeo 
llvm-svn: 25060
 2006-01-02 21:15:53 +00:00
Chris Lattner 38e0b281da Remove a 'using namespace std'. 
llvm-svn: 25059
 2006-01-01 22:20:31 +00:00
Andrew Lenharth 6bec63aac9 Move brcond over and fix some imm patterns. This may be the last change before changing the default alpha isel. 
llvm-svn: 25057
 2006-01-01 22:16:14 +00:00
Andrew Lenharth f0545f7c48 clean this function up some 
llvm-svn: 25055
 2006-01-01 22:13:54 +00:00
Andrew Lenharth 60ab61fcfc improve constant loading. Still sucks, but oh well 
llvm-svn: 25047
 2005-12-30 02:30:02 +00:00
Andrew Lenharth 50d9caf6a4 let us get some do what I meant not what I said stuff checked in. You would think the alpha backend would be 64bit clean 
llvm-svn: 25040
 2005-12-29 01:06:12 +00:00
Andrew Lenharth 34e4782c95 Fix up immediate handling 
llvm-svn: 25039
 2005-12-29 00:50:08 +00:00
Andrew Lenharth 5bd1c2783b Restore some happiness to the JIT 
llvm-svn: 25026
 2005-12-27 06:25:50 +00:00
Andrew Lenharth 962dcbd572 Fix alpha regressions. 
llvm-svn: 25025
 2005-12-27 03:53:58 +00:00
Evan Cheng 14c53b45f5 Added field noResults to Instruction. 
Currently tblgen cannot tell which operands in the operand list are results so
it assumes the first one is a result. This is bad. Ideally we would fix this
by separating results from inputs, e.g. (res R32:$dst),
(ops R32:$src1, R32:$src2). But that's a more distruptive change. Adding
'let noResults = 1' is the workaround to tell tblgen that the instruction does
not produces a result. It works for now since tblgen does not support
instructions which produce multiple results.

llvm-svn: 25017
 2005-12-26 09:11:45 +00:00
Andrew Lenharth f520093eb3 add br pattern, unify JSR and BSR ISel instrs, and add BSR support for DAG 
llvm-svn: 25011
 2005-12-25 17:36:48 +00:00
Andrew Lenharth 0fce613eff All that just to lower div and rem 
llvm-svn: 25008
 2005-12-25 01:34:27 +00:00
Andrew Lenharth 5b18ed9e60 All addressing modes are now exposed. The only remaining relocated forms 
are for function prologue.

TODO: move external symbols over to using RelLit.
    : have a pattern that matches constpool|globaladdr
    : have a pattern that matches (add x imm) -> x, imm or (...) -> ..., 0
llvm-svn: 25003
 2005-12-24 08:29:32 +00:00
Andrew Lenharth b9aaea3564 Unify the patterns for loads and stores. Now offset addressing should be 
supported.  This almost completes memory operations.

llvm-svn: 25002
 2005-12-24 07:34:33 +00:00
Andrew Lenharth 4621488965 Let's see if we can break things. 
Lower GOT relative addresses to Lo and HI.
Update both ISels to select them when they can.
Saves instructions here and there.

llvm-svn: 25001
 2005-12-24 05:36:33 +00:00
Andrew Lenharth 636e1aed43 move loads and stores over. Smart addr selection comming 
llvm-svn: 25000
 2005-12-24 03:41:56 +00:00
Chris Lattner 177d7af5d5 remove dead code 
llvm-svn: 24965
 2005-12-22 21:16:08 +00:00
Jim Laskey 9e296bee9a Disengage DEBUG_LOC from non-PPC targets. 
llvm-svn: 24919
 2005-12-21 20:51:37 +00:00
Andrew Lenharth cd54254af3 fix FP selects 
llvm-svn: 24672
 2005-12-12 20:30:09 +00:00
Andrew Lenharth b8296181e0 restore a more restricted select 
llvm-svn: 24668
 2005-12-12 17:43:52 +00:00
Andrew Lenharth 20d0b81c04 FP select improvements (and likely breakage), oh and crazy people might want to *return* floating point values. Don't see why myself 
llvm-svn: 24658
 2005-12-11 03:54:31 +00:00
Andrew Lenharth 87bf2234b5 it helps if your conditionals are not reversed 
llvm-svn: 24641
 2005-12-09 00:45:42 +00:00
Andrew Lenharth 26473b6b58 fix divide and remainder 
llvm-svn: 24628
 2005-12-06 23:27:39 +00:00
Andrew Lenharth 973cd1c845 more decent branches for FP. I might have to make some intermediate nodes to actually be able to use the DAG for FPcmp 
llvm-svn: 24625
 2005-12-06 20:43:30 +00:00
Andrew Lenharth 29b7ef0065 OK, this does wonders for broken stuff 
llvm-svn: 24624
 2005-12-06 20:40:34 +00:00
Andrew Lenharth e788bbf6ef added instructions with inverted immediates 
llvm-svn: 24614
 2005-12-06 00:33:53 +00:00
Andrew Lenharth 08c4a775e6 yea, it helps to have your path set right when testing 
llvm-svn: 24613
 2005-12-05 23:41:45 +00:00
Andrew Lenharth 3c7c4d7508 These never trigger, but whatever 
llvm-svn: 24612
 2005-12-05 23:19:44 +00:00
Andrew Lenharth 5bfcd1e63a move this over to the dag 
llvm-svn: 24609
 2005-12-05 20:50:53 +00:00
Andrew Lenharth 9410433966 fix constant pool loads 
llvm-svn: 24607
 2005-12-05 17:51:02 +00:00
Andrew Lenharth 7bb09912c8 major think-o 
llvm-svn: 24564
 2005-12-01 17:48:51 +00:00
Nate Begeman 006bb04f3a Support multiple ValueTypes per RegisterClass, needed for upcoming vector 
work.  This change has no effect on generated code.

llvm-svn: 24563
 2005-12-01 04:51:06 +00:00
Andrew Lenharth ce68ef8073 Flags where I think I need them, quick, before the nightly tester starts 
llvm-svn: 24560
 2005-12-01 01:53:10 +00:00
Chris Lattner 4b25924d2a SelectNodeTo now returns its result, we must pay attention to it. 
llvm-svn: 24552
 2005-11-30 23:04:38 +00:00
Nate Begeman 6f8c1ace6e No longer track value types for asm printer operands, and remove them as 
an argument to every operand printing function.  Requires some slight
tweaks to x86, the only user.

llvm-svn: 24541
 2005-11-30 18:54:35 +00:00
Andrew Lenharth 7ffe3affda remove redundant code 
llvm-svn: 24538
 2005-11-30 17:14:11 +00:00
Andrew Lenharth ede966e8ee Make typesafe that which isn't: FCMOVxx 
llvm-svn: 24536
 2005-11-30 17:11:20 +00:00
Andrew Lenharth 873ed82a36 FPSelect and more custom lowering 
llvm-svn: 24535
 2005-11-30 16:10:29 +00:00
Andrew Lenharth 6db615df14 All sorts of stuff. 
Getting in on the custom lowering thing, yay
evilness with fp setcc, yuck
trivial int select, hmmm
in memory args for functions, yay
DIV and REM, always handy.  They should be custom lowered though.

Lots more stuff compiles now (go go single source!).  Of course, none of it
probably works, but that is what the nightly tester can find out :)

llvm-svn: 24533
 2005-11-30 07:19:56 +00:00
Chris Lattner 9c415364cf No targets support line number info yet. 
llvm-svn: 24513
 2005-11-29 06:16:21 +00:00
Andrew Lenharth d6a0308470 Fix warning, the better way. Really, this is what this instruction is for, so use it 
llvm-svn: 24486
 2005-11-22 20:59:00 +00:00
Andrew Lenharth 03390557fa Fix warning 
llvm-svn: 24485
 2005-11-22 20:56:05 +00:00
Andrew Lenharth 0294e33ea4 massive DAGISel patch. lots and lots more stuff compiles now 
llvm-svn: 24483
 2005-11-22 04:20:06 +00:00
Chris Lattner 882b9fa977 Switch to using the generic constant pool emitter impl, use shorter 
CPI names

llvm-svn: 24466
 2005-11-21 08:29:17 +00:00
Chris Lattner 99946fb63f Adjust to capitalized AsmPrinter method names 
llvm-svn: 24456
 2005-11-21 07:51:23 +00:00
Chris Lattner 9885c97088 Use PrivateGlobalPrefix for basic blocks 
llvm-svn: 24451
 2005-11-21 07:38:08 +00:00
Chris Lattner a43b832f7f Switch to the new shared SwitchSection 
llvm-svn: 24450
 2005-11-21 07:30:28 +00:00
Chris Lattner 2c0b435ba6 Rename SwitchSection -> switchSection to avoid conflicting with a future 
change.

llvm-svn: 24443
 2005-11-21 06:55:27 +00:00
Chris Lattner 8a4995e42a Start using PrivateGlobalPrefix correctly 
llvm-svn: 24442
 2005-11-21 06:51:52 +00:00
Andrew Lenharth 6bc51c6f34 prevent latent switch creation 
llvm-svn: 24413
 2005-11-18 13:57:03 +00:00
Andrew Lenharth 59eefd4787 who would have thought you would want to write into globals too 
llvm-svn: 24381
 2005-11-16 21:15:53 +00:00
Chris Lattner 54c8fcf303 unbreak the build 
llvm-svn: 24339
 2005-11-13 01:45:23 +00:00
Andrew Lenharth ab72424488 enable LSR by default on alpha 
llvm-svn: 24337
 2005-11-12 19:21:08 +00:00
Andrew Lenharth 2ba45d1ee9 fix more regressions 
llvm-svn: 24335
 2005-11-12 19:06:28 +00:00
Andrew Lenharth 56526ec1a9 fix READCYCLECOUNTER 
llvm-svn: 24334
 2005-11-12 19:04:09 +00:00
Andrew Lenharth 97e8207a05 fix yet more regressions 
llvm-svn: 24308
 2005-11-11 23:08:46 +00:00
Andrew Lenharth fab772045e generate chain result 
llvm-svn: 24307
 2005-11-11 23:02:55 +00:00
Andrew Lenharth 5b3b9d7052 Fix a bunch more alpha regressions 
llvm-svn: 24304
 2005-11-11 19:52:25 +00:00
Andrew Lenharth 01aa56397d continued readcyclecounter support 
llvm-svn: 24300
 2005-11-11 16:47:30 +00:00
Andrew Lenharth e373163e95 fix a bunch of regressions 
llvm-svn: 24269
 2005-11-10 16:59:55 +00:00
Andrew Lenharth 97a7fcfd2b whatever. Intermediate patch to see what breaks. Seems ok. 
llvm-svn: 24260
 2005-11-09 19:17:08 +00:00
Chris Lattner b28f214033 Add a new option to indicate we want the code generator to emit code quickly,not spending tons of time microoptimizing it. This is useful for an -O0style of build. 
llvm-svn: 24233
 2005-11-08 02:11:51 +00:00
Chris Lattner 5c7d731832 If the module has no t-t and the host is an alpha, default to using the Alpha BE 
llvm-svn: 24110
 2005-10-30 16:44:01 +00:00
Chris Lattner 85b184b292 Make -time-passes output prettier 
llvm-svn: 24096
 2005-10-29 16:45:02 +00:00
Andrew Lenharth 381cab36ed int comparison patterns 
llvm-svn: 24020
 2005-10-26 18:44:45 +00:00
Jim Laskey 75eab3ca63 Typo made worse x 2 - take 2. 
llvm-svn: 24018
 2005-10-26 18:07:50 +00:00
Jim Laskey b1f2cedbaa Typo x 2 
llvm-svn: 24016
 2005-10-26 17:50:22 +00:00
Andrew Lenharth 7ac194560e Simplify instinfo, set random bits on more fp insts, and fix 1 opcode 
llvm-svn: 24014
 2005-10-26 17:41:46 +00:00
Jim Laskey a2b5235fac Give full control of subtarget features over to table generated code. 
llvm-svn: 24013
 2005-10-26 17:30:34 +00:00
Jim Laskey 53ad110490 Add attribute name and type to SubtargetFeatures. 
llvm-svn: 24012
 2005-10-26 17:28:23 +00:00
Chris Lattner 26ee5953f7 The dag isel generator generates this now 
llvm-svn: 23984
 2005-10-25 20:36:10 +00:00
Jim Laskey db4621a5f5 Preparation of supporting scheduling info. Need to find info based on selected 
CPU.

llvm-svn: 23974
 2005-10-25 15:15:28 +00:00
Chris Lattner 03bf3a1763 Simplify this due to changes in the tblgen side 
llvm-svn: 23908
 2005-10-23 22:33:22 +00:00
Chris Lattner 766361e8f4 Autogen subtarget information from .td files. 
llvm-svn: 23904
 2005-10-23 22:15:34 +00:00
Chris Lattner 4b5921d4d8 Add subtarget feature/processor defns to the .td file 
llvm-svn: 23903
 2005-10-23 22:08:45 +00:00
Andrew Lenharth c6072af580 Add several things. 
loads
branches
setcc
working calls
Global address
External addresses

now I can manage malloc calls.

llvm-svn: 23887
 2005-10-23 03:43:48 +00:00
Andrew Lenharth 5a990417f8 Well, the Constant matching pattern works. Can't say much about calls or globals yet. 
llvm-svn: 23884
 2005-10-22 22:06:58 +00:00
Chris Lattner 229878b7bc silence a release mode warning 
llvm-svn: 23868
 2005-10-21 16:01:26 +00:00
Nate Begeman 62e9e5462c Kill some now-dead code. 
llvm-svn: 23857
 2005-10-21 01:52:20 +00:00
Andrew Lenharth a099c0131e byte zap not immediate goodness 
llvm-svn: 23855
 2005-10-21 01:24:05 +00:00
Andrew Lenharth a6a23b5874 Inst cleanup. As a bonus, operands are in the correct order for cmovs. Expect new stuff to pass in the JIT tonight 
llvm-svn: 23852
 2005-10-20 23:58:36 +00:00
Andrew Lenharth d4c0ed74e4 added a few 1 operand form stuff. Seems to break regalloc on alpha. sigh 
llvm-svn: 23849
 2005-10-20 19:39:24 +00:00
Andrew Lenharth eb0ad1863b Sounds good, finish the intop conversion. 
llvm-svn: 23843
 2005-10-20 14:42:48 +00:00
Chris Lattner fd07fcda67 Add some pattern fragments to simplify the repetitive parts of the patterns 
for some common ops and use them for a few examples.  Andrew, if you like
this, feel free to convert the rest over, if you hate it, feel free to
revert.

llvm-svn: 23837
 2005-10-20 04:21:06 +00:00
Chris Lattner cd4be8798f simplify this a bit by using immediates 
llvm-svn: 23836
 2005-10-20 03:57:03 +00:00
Andrew Lenharth 794f15868a forgot this one 
llvm-svn: 23833
 2005-10-20 00:29:02 +00:00
Andrew Lenharth 7b69867052 ret 0; works, not much else 
still lots of uglyness.
Maybe calls will come soon.
Fixing the return value of things will be necessary to make alpha work.

llvm-svn: 23832
 2005-10-20 00:28:31 +00:00
Andrew Lenharth 1dfb85c7af 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 
llvm-svn: 23676
 2005-10-09 20:11:35 +00:00
Andrew Lenharth e4c91fc9e8 This is suppose to work now 
llvm-svn: 23644
 2005-10-06 16:54:29 +00:00
Andrew Lenharth 332df13b9e remove VAX compatibility instruction, we will never use this 
llvm-svn: 23643
 2005-10-06 16:53:32 +00:00
Chris Lattner 98da1d9910 Sort the cpu and features table, so that the alpha backend doesn't fail EVERY 
compile with an assertion that the tables are not sorted!

llvm-svn: 23591
 2005-10-02 07:13:52 +00:00
Andrew Lenharth 49e48f6234 subtarget support for CIX and FIX extentions (the only 2 I care about right now) 
llvm-svn: 23569
 2005-09-30 20:24:38 +00:00
Chris Lattner a654525c1c Pass extra regclasses into spilling code 
llvm-svn: 23537
 2005-09-30 01:29:42 +00:00
Andrew Lenharth a7a83b9255 begining alpha subtarget support 
llvm-svn: 23531
 2005-09-29 22:54:56 +00:00
Chris Lattner 0815dcae3f Add FP versions of the binary operators, keeping the int and fp worlds seperate. 
Though I have done extensive testing, it is possible that this will break
things in configs I can't test.  Please let me know if this causes a problem
and I'll fix it ASAP.

llvm-svn: 23505
 2005-09-28 22:29:17 +00:00
Chris Lattner fb96e50b8c This code is no longer needed, it is moved to the target-indep code 
llvm-svn: 23332
 2005-09-13 19:31:44 +00:00
Chris Lattner 64685b4ca2 Majik numbers are bad 
llvm-svn: 23330
 2005-09-13 19:03:13 +00:00
Chris Lattner 7c8dba750c ignore generated files 
llvm-svn: 23263
 2005-09-07 23:47:44 +00:00
Andrew Lenharth a63a066205 Fix up the AssertXext problem, as well as adding it at calls 
llvm-svn: 23246
 2005-09-06 17:00:23 +00:00
Andrew Lenharth c8bd5bda59 revert part of the last change, should fix regressions 
llvm-svn: 23241
 2005-09-04 06:12:19 +00:00
Andrew Lenharth 9690a4f321 Pull out Lowering in preperation for multiple ISels. Oh, and get rid of some stuff 
llvm-svn: 23220
 2005-09-02 18:46:02 +00:00
Jim Laskey 19058c3989 1. Use SubtargetFeatures in llc/lli. 
2. Propagate feature "string" to all targets.

3. Implement use of SubtargetFeatures in PowerPCTargetSubtarget.

llvm-svn: 23192
 2005-09-01 21:38:21 +00:00
Chris Lattner c30405e0ee Change ConstantPoolSDNode to actually hold the Constant itself instead of 
putting it into the constant pool.  This allows the isel machinery to
create constants that it will end up deciding are not needed, without them
ending up in the resultant function constant pool.

llvm-svn: 23081
 2005-08-26 17:15:30 +00:00
Chris Lattner 8975de187f Put register classes in namespaces 
llvm-svn: 22924
 2005-08-19 18:50:46 +00:00
Chris Lattner 0faf0b7313 This code has always been dead for alpha 
llvm-svn: 22915
 2005-08-19 18:33:26 +00:00