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Author SHA1 Message Date
Chris Lattner
ce041cae67 Change it to take a callgraph, from which we can get a module 
llvm-svn: 13085
 2004-04-20 21:52:07 +00:00
Chris Lattner
c3714a870c Add the ability for SCC passes to initialize and finalize themselves 
llvm-svn: 13084
 2004-04-20 21:30:06 +00:00
Chris Lattner
602146eea1 Fix PR325 
llvm-svn: 13081
 2004-04-20 20:26:03 +00:00
Chris Lattner
5a1e3f099f Fix PR324 and testcase: Inline/2004-04-20-InlineLinkOnce.llx 
llvm-svn: 13080
 2004-04-20 20:20:59 +00:00
Chris Lattner
7e6c6c85b9 New testcase, distilled from PR324 
llvm-svn: 13079
 2004-04-20 20:15:01 +00:00
Brian Gaeke
3727c760ed Make it legal to ask for the type of a specialreg 
llvm-svn: 13078
 2004-04-20 20:12:57 +00:00
Brian Gaeke
74f0defc33 Add some PRs which were fixed, but not previously mentioned in the rel. notes. 
llvm-svn: 13077
 2004-04-20 18:18:46 +00:00
Chris Lattner
8b841e0e35 Add support for the select instruction 
llvm-svn: 13076
 2004-04-20 16:43:21 +00:00
Brian Gaeke
047739f8d8 Make it legal to request a load or store of %fsr. 
llvm-svn: 13073
 2004-04-19 19:12:12 +00:00
Brian Gaeke
c72f1fa822 Fix typo. 
llvm-svn: 13072
 2004-04-19 19:09:24 +00:00
Brian Gaeke
3dfe9f19ea Regularize include guards and remove some excess whitespace. 
llvm-svn: 13071
 2004-04-19 18:53:44 +00:00
Brian Gaeke
d7fa9142a3 Tighten up SparcV9FloatCCRegClass::getRegName()'s assertion - if you ask it for 
the name of %fsr (as the comment in SparcV9RegClassInfo.h used to suggest)
you would walk off the end of the FloatCCRegName array.

llvm-svn: 13070
 2004-04-19 18:53:43 +00:00
Brian Gaeke
5bcbc23fc1 Regularize include guards, remove some excess whitespace and fix some comments. 
Remove the extra %fsr register from SparcV9FloatCCRegClass.

llvm-svn: 13069
 2004-04-19 18:53:42 +00:00
Chris Lattner
29f69938e7 Initial checkin of a simple loop unswitching pass. It still needs work, 
but it's a start, and seems to do it's basic job.

llvm-svn: 13068
 2004-04-19 18:07:02 +00:00
Chris Lattner
a4e24e3c64 New testcase 
llvm-svn: 13067
 2004-04-19 18:06:34 +00:00
Chris Lattner
10c5fa0de9 Add accessor for a Loop Unswitching pass 
llvm-svn: 13066
 2004-04-19 06:28:37 +00:00
Chris Lattner
6aa66a1cae Eliminate a poorly conceived method 
llvm-svn: 13065
 2004-04-19 06:26:46 +00:00
Chris Lattner
710a51d72b It's not just a printer, it's actually an analysis too 
llvm-svn: 13064
 2004-04-19 03:42:32 +00:00
Misha Brukman
85b8b45f7b As per Chris, greatly simplify handling of external functions by using the 
wrapper idea uniformly: we can use Value::replaceAllUsesWith() instead of
special-casing by class of user.

llvm-svn: 13063
 2004-04-19 03:36:47 +00:00
Misha Brukman
09bc094bc2 * Remove note about "UNSUPPORTED: " feature that just became supported 
* Fix usage of <p> tag and some grammar

llvm-svn: 13062
 2004-04-19 03:28:39 +00:00
Misha Brukman
eba5545346 * Reorder #includes 
* Wrap a long line

llvm-svn: 13061
 2004-04-19 03:12:35 +00:00
Misha Brukman
e203fe645b Display sample bugpoint output with the `code' stylesheet class. 
llvm-svn: 13060
 2004-04-19 03:07:29 +00:00
Chris Lattner
c35a86f48b * Improve file header comment 
* Remove #include
* Add some methods to update loop/loopinfo
* Stop explicitly holding the loop depth in the Loop class.  Instead, just
  dynamically calculate it.  This makes it easier to update LoopInfo as a
  result of transformations.

llvm-svn: 13059
 2004-04-19 03:03:19 +00:00
Chris Lattner
69d4611250 Remove code to update loop depths 
llvm-svn: 13058
 2004-04-19 03:02:09 +00:00
Chris Lattner
1849aa8b1f Add #include 
llvm-svn: 13057
 2004-04-19 03:01:23 +00:00
Misha Brukman
9b353889ae Add notes about PRs 38 and 290 being fixed. 
llvm-svn: 13056
 2004-04-19 03:01:01 +00:00
Misha Brukman
2d5e64ab31 Wrap (some) lines to 80 cols. 
llvm-svn: 13055
 2004-04-19 02:56:49 +00:00
Misha Brukman
e7ccafce7e Finally implement rewriting global initializers which use external functions 
by creating an internal wrapper function with same signature as the external
function, and use it instead of the "real" function.

The wrapper then calls the external function using the same JIT function
resolution API that has been used before for rewriting instructions, since the
wrapper has an explicit call instruction which we can rewrite.

llvm-svn: 13054
 2004-04-19 01:12:01 +00:00
Chris Lattner
0ce3a74370 Provide an interface that is more convenient for iterating over the blocks 
in a loop.

llvm-svn: 13052
 2004-04-18 23:37:03 +00:00
Chris Lattner
ab6502f058 Move isLoopInvariant to the Loop class 
llvm-svn: 13051
 2004-04-18 22:46:08 +00:00
Chris Lattner
509116ec78 Add new method 
llvm-svn: 13050
 2004-04-18 22:45:27 +00:00
Chris Lattner
83017d0b1b Add new method. 
llvm-svn: 13049
 2004-04-18 22:45:16 +00:00
Chris Lattner
5a0ed18724 Correct rewriting of exit blocks after my last patch 
llvm-svn: 13048
 2004-04-18 22:27:10 +00:00
Chris Lattner
06e17bb6f7 Fix computation of exit blocks 
llvm-svn: 13047
 2004-04-18 22:21:41 +00:00
Chris Lattner
8e42c6f409 Loop exit sets are no longer explicitly held, they are dynamically computed on demand. 
llvm-svn: 13046
 2004-04-18 22:15:13 +00:00
Chris Lattner
7174acca00 Change the ExitBlocks list from being explicitly contained in the Loop 
structure to being dynamically computed on demand.  This makes updating
loop information MUCH easier.

llvm-svn: 13045
 2004-04-18 22:14:10 +00:00
Chris Lattner
5fbdaafc18 Spiff is no longer in our tree 
llvm-svn: 13041
 2004-04-18 18:26:38 +00:00
Chris Lattner
13140766df Reduce the unrolling limit 
llvm-svn: 13040
 2004-04-18 18:06:14 +00:00
Chris Lattner
430968ac2f If the preheader of the loop was the entry block of the function, make sure 
that the exit block of the loop becomes the new entry block of the function.

This was causing a verifier assertion on 252.eon.

llvm-svn: 13039
 2004-04-18 17:38:42 +00:00
Chris Lattner
199b58db3f Be much more careful about how we update instructions outside of the loop 
using instructions inside of the loop.  This should fix the MishaTest failure
from last night.

llvm-svn: 13038
 2004-04-18 17:32:39 +00:00
Chris Lattner
c6aded531b Another testcase 
llvm-svn: 13037
 2004-04-18 06:55:57 +00:00
Chris Lattner
08232425a0 Implement method 
llvm-svn: 13036
 2004-04-18 06:54:48 +00:00
Chris Lattner
b17c6d4732 Add a new method 
llvm-svn: 13035
 2004-04-18 06:54:34 +00:00
Chris Lattner
33ec7f2f9f After unrolling our single basic block loop, fold it into the preheader and exit 
block.  The primary motivation for doing this is that we can now unroll nested loops.

This makes a pretty big difference in some cases.  For example, in 183.equake,
we are now beating the native compiler with the CBE, and we are a lot closer
with LLC.

I'm now going to play around a bit with the unroll factor and see what effect
it really has.

llvm-svn: 13034
 2004-04-18 06:27:43 +00:00
Chris Lattner
f2045a8c05 Fix a bug: this does not preserve the CFG! 
While we're at it, add support for updating loop information correctly.

llvm-svn: 13033
 2004-04-18 05:38:37 +00:00
Chris Lattner
6606b526f6 Add a new method, add a check missing that caused a segfault if a loop didn't 
have a canonical indvar

llvm-svn: 13032
 2004-04-18 05:38:05 +00:00
Chris Lattner
a8ec64511a Allow clients to delete loops, add a new method 
llvm-svn: 13031
 2004-04-18 05:37:42 +00:00
Chris Lattner
0caf28f4ff Move loop optimization passes up, add loop unroller 
llvm-svn: 13030
 2004-04-18 05:21:01 +00:00
Chris Lattner
27fd823c1b Add prototype 
llvm-svn: 13029
 2004-04-18 05:20:32 +00:00
Chris Lattner
b0d23bf99d Initial checkin of a simple loop unroller. This pass is extremely basic and 
limited.  Even in it's extremely simple state (it can only *fully* unroll single
basic block loops that execute a constant number of times), it already helps improve
performance a LOT on some benchmarks, particularly with the native code generators.

llvm-svn: 13028
 2004-04-18 05:20:17 +00:00