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41 Commits

Author SHA1 Message Date
Evan Cheng f2a7d5768a RET_FLAG has an optional input flag, but it does not produce a flag result. 
llvm-svn: 29725
 2006-08-16 07:28:58 +00:00
Chris Lattner ed728e8dc9 Eliminate use of getNode that takes a vector. 
llvm-svn: 29614
 2006-08-11 17:38:39 +00:00
Chris Lattner 56565b5cb9 eliminate use of getNode that takes vector of operands. 
llvm-svn: 29611
 2006-08-11 17:21:12 +00:00
Evan Cheng a3add0fea8 Change RET node to include signness information of the return values. i.e. 
RET chain, value1, sign1, value2, sign2, ...

llvm-svn: 28510
 2006-05-26 23:10:12 +00:00
Nate Begeman 4ca2ea5b43 JumpTable support! What this represents is working asm and jit support for 
x86 and ppc for 100% dense switch statements when relocations are non-PIC.
This support will be extended and enhanced in the coming days to support
PIC, and less dense forms of jump tables.

llvm-svn: 27947
 2006-04-22 18:53:45 +00:00
Nate Begeman bb01d4f272 Remove BRTWOWAY* 
Make the PPC backend not dependent on BRTWOWAY_CC and make the branch
selector smarter about the code it generates, fixing a case in the
readme.

llvm-svn: 26814
 2006-03-17 01:40:33 +00:00
Chris Lattner 9c7f50376a Copysign needs to be expanded everywhere. Note that Alpha and IA64 should 
implement copysign as a native op if they have it.

llvm-svn: 26541
 2006-03-05 05:08:37 +00:00
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
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
Chris Lattner 61c9a8e942 Targets all now request ConstantFP to be legalized into TargetConstantFP. 
'fpimm' in .td files is now TargetConstantFP.

llvm-svn: 25771
 2006-01-29 06:26:08 +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 b292de6703 Remove some dead code 
llvm-svn: 25719
 2006-01-28 00:02:51 +00:00
Nate Begeman 8c47c3a3b1 Remove TLI.LowerReturnTo, and just let targets custom lower ISD::RET for 
the same functionality.  This addresses another piece of bug 680.  Next,
on to fixing Alpha VAARG, which I broke last time.

llvm-svn: 25696
 2006-01-27 21:09:22 +00:00
Evan Cheng 030e002fb9 Set SchedulingForLatency to be the default scheduling preference for all. 
llvm-svn: 25607
 2006-01-25 18:52:42 +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
Evan Cheng 1092a02619 Default scheduling preference is SchedulingForLatency. 
llvm-svn: 25603
 2006-01-25 09:15:54 +00:00
Duraid Madina f54c9395e7 remove RET hack, add proper support for rets (watching out for ret voids) 
llvm-svn: 25486
 2006-01-20 20:24:31 +00:00
Duraid Madina 4026e12e85 fix sext breakage: now we correctly deal with functions that return 
int vs uint

llvm-svn: 25478
 2006-01-20 16:10:05 +00:00
Duraid Madina 29b9d7cdff fix calls that return f32 
llvm-svn: 25455
 2006-01-19 08:31:51 +00:00
Duraid Madina c8817d2857 explain that r12 is the stack pointer reg 
llvm-svn: 25336
 2006-01-15 09:45:23 +00:00
Chris Lattner c17b41c3ba Cleanup IA64ISD, tell the graph drawer what the symbolic names for the enums are. 
llvm-svn: 25324
 2006-01-14 22:27:21 +00:00
Nate Begeman 2fba8a3aaa bswap implementation 
llvm-svn: 25312
 2006-01-14 03:14:10 +00:00
Chris Lattner fdc6d1ea69 new nodes 
llvm-svn: 25271
 2006-01-13 02:40:58 +00:00
Duraid Madina 84be729a56 sabre's (correct) fix means these guys need to be flagged as well (else 
the scheduler will complain)

llvm-svn: 25241
 2006-01-12 03:28:40 +00:00
Chris Lattner 9d5e4e8f3c Fix an itanium call lowering bug for duraid 
llvm-svn: 25235
 2006-01-12 01:33:08 +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
Chris Lattner 0fb2ae7d17 silence a bogus warning 
llvm-svn: 25185
 2006-01-10 19:45:18 +00:00
Duraid Madina 014e8ee806 heh, 'sif it'd be a legalizer bug. 
llvm-svn: 25172
 2006-01-10 05:26:01 +00:00
Duraid Madina e977a93bd5 support functions that return bool (this "should" work but doesn't, 
*maybe* due to a legalizer bug.)

llvm-svn: 25171
 2006-01-10 05:08:25 +00:00
Chris Lattner efbb8da3f5 silence a bogus gcc warning 
llvm-svn: 25129
 2006-01-06 17:56:38 +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
Duraid Madina 69ac08c683 nasty paste-o, calls passing more than 8 arguments along were having 
args >8 put into the wrong place

llvm-svn: 25027
 2005-12-27 10:17:03 +00:00
Duraid Madina 644e7db818 this is a hack, which may or may not hang around. In short: 
whimper out of doing things the Right Way, and hack up a generic
'BRCALL' instruction, that gets generated when calls are lowered.
This gets selected by hand in the DAG isel, where it gets turned
into real (i.e. in tablegen) br.call instructions.

BUG: this dies on void calls, but seems to work otherwise?
llvm-svn: 24952
 2005-12-22 13:29:14 +00:00
Duraid Madina d0c146d59f this should take care of calls to varadic functions, but it doesn.,t 
BUG: calling printf(string, float) will load the float into the wrong
register, completely forget about loading the string, etce

llvm-svn: 24947
 2005-12-22 06:39:57 +00:00
Duraid Madina 5ccf76fed3 I shoulda done this a *long* time ago (tm): implement calls properly, 
i.e. r1/r12/rp are saved/restored regardless of scheduling/luck

TODO: calls to external symbols, indirect (function descriptor) calls,
      performance (we're being paranoid right now)

BUG: the code for handling calls to vararg functions breaks if FP
args are passed (this will make printf() go haywire so a bunch of
tests will fail)

BUG: this seems to trigger some legalize nastiness
llvm-svn: 24942
 2005-12-22 04:07:40 +00:00
Jim Laskey 9e296bee9a Disengage DEBUG_LOC from non-PPC targets. 
llvm-svn: 24919
 2005-12-21 20:51:37 +00:00
Chris Lattner 9c415364cf No targets support line number info yet. 
llvm-svn: 24513
 2005-11-29 06:16:21 +00:00
Duraid Madina d3260128af kill redundant SP/GP/RP save/restores across calls 
llvm-svn: 24183
 2005-11-04 10:01:10 +00:00
Duraid Madina 9abf1650ed add support for loading FP constants +0.0 and +1.0 to the dag isel, 
stop pretending -0.0 and -1.0 are machine constants

llvm-svn: 24146
 2005-11-02 02:35:04 +00:00
Duraid Madina f221c261f3 DAG->DAG instruction selection for ia64! "hello world" works, not much else. 
use -enable-ia64-dag-isel to turn this on

TODO: delete lowering stuff from the pattern isel
    : get operations on predicate bits working
    : get other bits of pseudocode going
    : use sampo's mulh/mull-using divide-by-constant magic
    : *so* many patterns ("extr", "tbit" and "dep" will be fun :)
    : add FP
    : add a JIT!
    : get it working 100%

in short: this'll be happier in a couple of weeks, but it's here now so
the tester can make me feel guilty sooner.

OTHER: there are a couple of fixes to the pattern isel, in particular
making the linker happy with big blobs of fun like pypy.

llvm-svn: 24058
 2005-10-28 17:46:35 +00:00