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Author SHA1 Message Date
Chris Lattner
3f23d22d3f Change the interface for getting a target HazardRecognizer to be more clean. 
llvm-svn: 26608
 2006-03-08 04:25:59 +00:00
Jim Laskey
aae3375a2b libstdc++-v3 was failing to build. Needed to handle composite types with empty 
members (running into a zero initializer.)

llvm-svn: 26607
 2006-03-08 02:07:02 +00:00
Chris Lattner
256eff3ac6 Fix a miscompilation of 188.ammp with the new CFE. 188.ammp is accessing 
arrays out of range in a horrible way, but we shouldn't break it anyway.
Details in the comments.

llvm-svn: 26606
 2006-03-08 01:05:29 +00:00
Chris Lattner
24aa564456 add a note 
llvm-svn: 26605
 2006-03-08 00:25:47 +00:00
Evan Cheng
d73d06f052 X86ISD::REP_STOS and X86ISD::REP_MOVS now produces a flag. 
llvm-svn: 26604
 2006-03-07 23:34:23 +00:00
Evan Cheng
a3e0a7f652 Use rep/stosl; and Count 0x3; rep/stosb for memset with 4 byte aligned dest. 
and variable value.
Similarly for memcpy.

llvm-svn: 26603
 2006-03-07 23:29:39 +00:00
Chris Lattner
4c47b8cd69 Two things: 
1. Don't emit debug info, or other llvm.metadata to the .cbe.c file.
2. Mark static ctors/dtors as such, so that bugpoint works on C++ code
   compiled with the new CFE.

llvm-svn: 26602
 2006-03-07 22:58:23 +00:00
Chris Lattner
54e424e259 new testcase that should have been added long ago. 
llvm-svn: 26601
 2006-03-07 22:33:00 +00:00
Jim Laskey
91d5ce2531 Use "llvm.metadata" section for debug globals. Filter out these globals in the 
asm printer.

llvm-svn: 26599
 2006-03-07 22:00:35 +00:00
Jim Laskey
eec3faecde Switch to using a numeric id for anchors. 
llvm-svn: 26598
 2006-03-07 20:53:47 +00:00
Chris Lattner
c9039049c0 Fix ConstantMerge/2006-03-07-DontMergeDiffSections.ll, a problem Jim 
hypotheticalized about, where we would incorrectly merge two globals in
different sections.

llvm-svn: 26597
 2006-03-07 17:56:59 +00:00
Chris Lattner
9e766930c7 new testcase 
llvm-svn: 26596
 2006-03-07 17:56:31 +00:00
Chris Lattner
27f87a6955 add another missing store. 
llvm-svn: 26595
 2006-03-07 16:26:48 +00:00
Chris Lattner
dfdeec73bc add a couple more load/store instrs, add a newline to the end of file. 
llvm-svn: 26594
 2006-03-07 16:19:46 +00:00
Jim Laskey
da7873525e Bitfield support. 
llvm-svn: 26593
 2006-03-07 15:51:33 +00:00
Evan Cheng
71c62ae1f4 Don't generate silly matching code like this: 
if (N1.getOpcode() == ISD::ADD &&
     ...)
   if (... &&
       (N1.getNumOperands() == 1 || !isNonImmUse(N1.Val, N10.Val))) &&
       ...)

TableGen knows N1 must have more than one operand.

llvm-svn: 26592
 2006-03-07 08:31:27 +00:00
Nate Begeman
a8bc3c0c3c This kinda sorta implements "things that have to lead a dispatch group". 
llvm-svn: 26591
 2006-03-07 08:30:27 +00:00
Chris Lattner
842436586c add some new instructions to the classifier. With this, we correctly insert 
a nop into Freebench/neural, which speeds it up from 136->129s (~5.4%).

llvm-svn: 26590
 2006-03-07 07:14:55 +00:00
Chris Lattner
0cd4bd574c add some comments that describe what we model 
llvm-svn: 26588
 2006-03-07 06:44:19 +00:00
Chris Lattner
4cd6cd499d Implement a very very simple hazard recognizer for LSU rejects and ctr set/read 
flushes

llvm-svn: 26587
 2006-03-07 06:32:48 +00:00
Chris Lattner
ced780efee Fix some formatting, when looking for hazards, prefer target nodes over 
things like copyfromreg.

llvm-svn: 26586
 2006-03-07 05:40:43 +00:00
Chris Lattner
ae34bbf56b add a note 
llvm-svn: 26585
 2006-03-07 04:42:59 +00:00
Jeff Cohen
65b7db8bfd Keep VC++ building. 
llvm-svn: 26584
 2006-03-07 02:58:13 +00:00
Chris Lattner
174768dde0 add a note 
llvm-svn: 26583
 2006-03-07 02:46:26 +00:00
Evan Cheng
03940bfcfe - Emit subsections_via_symbols for Darwin. 
- Conditionalize Dwarf debugging output (Darwin only for now).

llvm-svn: 26582
 2006-03-07 02:23:26 +00:00
Evan Cheng
2327759419 Enable Dwarf debugging info. 
llvm-svn: 26581
 2006-03-07 02:02:57 +00:00
Chris Lattner
8a548b3e7d Teach the alignment handling code to look through constant expr casts and GEPs 
llvm-svn: 26580
 2006-03-07 01:28:57 +00:00
Chris Lattner
d12bd272d3 new regression test 
llvm-svn: 26579
 2006-03-06 23:52:37 +00:00
Chris Lattner
58fe521b5b Teach instcombine to increase the alignment of memset/memcpy/memmove when 
the pointer is known to come from either a global variable, alloca or
malloc.  This allows us to compile this:

  P = malloc(28);
  memset(P, 0, 28);

into explicit stores on PPC instead of a memset call.

llvm-svn: 26577
 2006-03-06 20:18:44 +00:00
Chris Lattner
86375c060a update file comment 
llvm-svn: 26573
 2006-03-06 17:58:04 +00:00
Evan Cheng
2fad0ea044 Remove some code that doesn't make sense 
llvm-svn: 26572
 2006-03-06 07:31:44 +00:00
Reid Spencer
9720d6fc61 Make sure command line options are parsed before we try to add the LibPath 
(-L options) to TheLinker. Problem noticed by Wink Saville.

llvm-svn: 26571
 2006-03-06 06:38:19 +00:00
Evan Cheng
8fd9503fbd Remove SUnit::Priority1: it is re-calculated on demand as number of live 
range to be generated.

llvm-svn: 26570
 2006-03-06 06:08:54 +00:00
Chris Lattner
c6d1fbab70 Hoist the HazardRecognizer out of the ScheduleDAGList.cpp file to where 
targets can implement them.  Make the top-down scheduler non-g5-specific.

Remove the old testing hazard recognizer.

llvm-svn: 26569
 2006-03-06 00:22:00 +00:00
Chris Lattner
a0769e790e Hoist the HazardRecognizer out of the ScheduleDAGList.cpp file to where 
targets can implement them.  Make the top-down scheduler non-g5-specific.

llvm-svn: 26568
 2006-03-06 00:20:29 +00:00
Chris Lattner
ca7ed30ee6 Comment fixes 
llvm-svn: 26567
 2006-03-05 23:59:20 +00:00
Chris Lattner
101ce8f304 Don't depend on the C99 copysign function, implement it ourselves. 
llvm-svn: 26566
 2006-03-05 23:57:58 +00:00
Chris Lattner
99767c08ca new testcase I forgot to check in earlier 
llvm-svn: 26565
 2006-03-05 23:53:04 +00:00
Chris Lattner
5c28fdcae8 When a hazard recognizer needs noops to be inserted, do so. This represents 
noops as null pointers in the instruction sequence.

llvm-svn: 26564
 2006-03-05 23:51:47 +00:00
Chris Lattner
4dae9a978e add an emitnoop method 
llvm-svn: 26563
 2006-03-05 23:50:42 +00:00
Chris Lattner
af44ead7f3 implement TII::insertNoop 
llvm-svn: 26562
 2006-03-05 23:49:55 +00:00
Chris Lattner
c656f75535 custom lowered nodes are legal too 
llvm-svn: 26561
 2006-03-05 23:49:19 +00:00
Chris Lattner
5fd145d9c4 add a hook to insert a noop 
llvm-svn: 26560
 2006-03-05 23:48:51 +00:00
Chris Lattner
0ee7522721 Implement G5HazardRecognizer as a trivial thing that wants 5 cycles between 
copyfromreg nodes.  Clearly useful!

llvm-svn: 26559
 2006-03-05 23:13:56 +00:00
Chris Lattner
ccda7ffffd Add basic hazard recognizer support. noop insertion isn't complete yet though. 
llvm-svn: 26558
 2006-03-05 22:45:01 +00:00
Andrew Lenharth
89ca36285c For transforms the behave differently if main goes away, add an option to prevent bugpoint from removing main 
llvm-svn: 26557
 2006-03-05 22:21:36 +00:00
Jeff Cohen
578bf37e22 Fix VC++ compilation error. 
llvm-svn: 26554
 2006-03-05 21:43:37 +00:00
Jim Laskey
45dfae3a50 Breathe some life into a comment. 
llvm-svn: 26553
 2006-03-05 21:20:20 +00:00
Chris Lattner
ef4bef419b Split the list scheduler into top-down and bottom-up pieces. The priority 
function of the top-down scheduler are completely bogus currently, and
having (future) PPC specific in this file is also wrong, but this is a
small incremental step.

llvm-svn: 26552
 2006-03-05 21:10:33 +00:00
Chris Lattner
a171bcca08 Add a new scheduling type. This is, of course, a hack. Proper factoring 
will come later.

llvm-svn: 26551
 2006-03-05 21:08:06 +00:00