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Author SHA1 Message Date
Chris Lattner
e1c173bc77 Fix ConstantMerge/2006-03-07-DontMergeDiffSections.ll, a problem Jim 
hypotheticalized about, where we would incorrectly merge two globals in
different sections.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26597 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-07 17:56:59 +00:00
Chris Lattner
1159e8d8f1 new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26596 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-07 17:56:31 +00:00
Chris Lattner
b84225b080 add another missing store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26595 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-07 16:26:48 +00:00
Chris Lattner
ab5801cb28 add a couple more load/store instrs, add a newline to the end of file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26594 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-07 16:19:46 +00:00
Jim Laskey
20c3ed8166 Bitfield support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26593 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-07 15:51:33 +00:00
Evan Cheng
6f8aaf2cb0 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26592 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-07 08:31:27 +00:00
Nate Begeman
3acbe5d4f0 This kinda sorta implements "things that have to lead a dispatch group". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26591 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-07 08:30:27 +00:00
Chris Lattner
2046371e70 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%).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26590 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-07 07:14:55 +00:00
Chris Lattner
7ce64852e8 add some comments that describe what we model 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26588 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-07 06:44:19 +00:00
Chris Lattner
c664418820 Implement a very very simple hazard recognizer for LSU rejects and ctr set/read 
flushes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26587 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-07 06:32:48 +00:00
Chris Lattner
b2d635803d Fix some formatting, when looking for hazards, prefer target nodes over 
things like copyfromreg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26586 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-07 05:40:43 +00:00
Chris Lattner
5a63c47fb5 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26585 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-07 04:42:59 +00:00
Jeff Cohen
784236d778 Keep VC++ building. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26584 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-07 02:58:13 +00:00
Chris Lattner
549f27d235 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26583 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-07 02:46:26 +00:00
Evan Cheng
d594881a28 - Emit subsections_via_symbols for Darwin. 
- Conditionalize Dwarf debugging output (Darwin only for now).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26582 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-07 02:23:26 +00:00
Evan Cheng
3c992d291b Enable Dwarf debugging info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26581 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-07 02:02:57 +00:00
Chris Lattner
51c26e911a Teach the alignment handling code to look through constant expr casts and GEPs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26580 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-07 01:28:57 +00:00
Chris Lattner
b18966c28c new regression test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26579 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-06 23:52:37 +00:00
Chris Lattner
95a959dc1a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26577 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-06 20:18:44 +00:00
Chris Lattner
6af7ef8da8 update file comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26573 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-06 17:58:04 +00:00
Evan Cheng
adc5e5c85f Remove some code that doesn't make sense 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26572 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-06 07:31:44 +00:00
Reid Spencer
78df5c3121 Make sure command line options are parsed before we try to add the LibPath 
(-L options) to TheLinker. Problem noticed by Wink Saville.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26571 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-06 06:38:19 +00:00
Evan Cheng
6b36ce9202 Remove SUnit::Priority1: it is re-calculated on demand as number of live 
range to be generated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26570 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-06 06:08:54 +00:00
Chris Lattner
03fc53c174 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26569 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-06 00:22:00 +00:00
Chris Lattner
37e30cf736 Hoist the HazardRecognizer out of the ScheduleDAGList.cpp file to where 
targets can implement them.  Make the top-down scheduler non-g5-specific.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26568 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-06 00:20:29 +00:00
Chris Lattner
67727308fa Comment fixes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26567 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 23:59:20 +00:00
Chris Lattner
3c232c83be Don't depend on the C99 copysign function, implement it ourselves. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26566 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 23:57:58 +00:00
Chris Lattner
03182bfd89 new testcase I forgot to check in earlier 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26565 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 23:53:04 +00:00
Chris Lattner
a93dfcd40a When a hazard recognizer needs noops to be inserted, do so. This represents 
noops as null pointers in the instruction sequence.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26564 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 23:51:47 +00:00
Chris Lattner
202bc85a95 add an emitnoop method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26563 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 23:50:42 +00:00
Chris Lattner
bbf1c72d51 implement TII::insertNoop 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26562 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 23:49:55 +00:00
Chris Lattner
1566d18fe2 custom lowered nodes are legal too 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26561 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 23:49:19 +00:00
Chris Lattner
65e9f3969b add a hook to insert a noop 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26560 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 23:48:51 +00:00
Chris Lattner
6cc3f0a774 Implement G5HazardRecognizer as a trivial thing that wants 5 cycles between 
copyfromreg nodes.  Clearly useful!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26559 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 23:13:56 +00:00
Chris Lattner
ad0f78ace2 Add basic hazard recognizer support. noop insertion isn't complete yet though. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26558 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 22:45:01 +00:00
Andrew Lenharth
7c0a93785e For transforms the behave differently if main goes away, add an option to prevent bugpoint from removing main 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26557 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 22:21:36 +00:00
Jeff Cohen
3d68e15c20 Fix VC++ compilation error. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26554 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 21:43:37 +00:00
Jim Laskey
c0fe53383e Breathe some life into a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26553 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 21:20:20 +00:00
Chris Lattner
a5de484bc7 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26552 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 21:10:33 +00:00
Chris Lattner
20614b9562 Add a new scheduling type. This is, of course, a hack. Proper factoring 
will come later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26551 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 21:08:06 +00:00
Chris Lattner
41f5ea0665 Move the available queue to being inside the ListSchedule method, since it 
bounds its lifetime.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26550 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 20:21:55 +00:00
Chris Lattner
5b0fe7d91d add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26549 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 20:00:08 +00:00
Chris Lattner
cac7059d0f Reinstate this now that the offending opposite xform has been removed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26548 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 19:53:55 +00:00
Chris Lattner
c1d9f1de41 Do not fold (add (shl x, c1), (shl c2, c1)) -> (shl (add x, c2), c1), 
we want to canonicalize the other way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26547 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 19:52:57 +00:00
Chris Lattner
5267651057 print arbitrary constant pool entries 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26545 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 09:38:03 +00:00
Evan Cheng
9176b0169c Back out fold (shl (add x, c1), c2) -> (add (shl x, c2), c1<<c2) for now. 
It's causing an infinite loop compiling ldecod on x86 / Darwin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26544 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 07:30:16 +00:00
Chris Lattner
12d830346b Add some simple copysign folds 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26543 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 05:30:57 +00:00
Chris Lattner
a09f848c11 Codegen copysign[f] into a FCOPYSIGN node 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26542 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 05:09:38 +00:00
Chris Lattner
9601a86a64 Copysign needs to be expanded everywhere. Note that Alpha and IA64 should 
implement copysign as a native op if they have it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26541 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 05:08:37 +00:00
Chris Lattner
38bf3bffe3 Add a copysign node 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26540 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 05:06:40 +00:00