Andrew Lenharth
bb227c1b79
Added documented rsprofiler interface. Also remove new profiler passes, the
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old ones have been updated to implement the interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24499 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-28 18:00:38 +00:00
Andrew Lenharth
701f5ac73c
Random sampling (aka Arnold and Ryder) profiling. This is still preliminary, but it works on spec on x86 and alpha. The idea is to allow profiling passes to remember what profiling they inserted, then a random sampling framework is inserted which consists of duplicated basic blocks (without profiling), such that at each backedge in the program and entry into every function, the framework chooses whether to use the instrumented code or the instrumentation free code. The goal of such a framework is to make it reasonably cheap to do random sampling of very expensive profiling products (such as load-value profiling).
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The code is organized into 3 parts (2 passes)
1) a linked set of profiling passes, which implement an analysis group (linked, like alias analysis are). These insert profiling into the program, and remember what they inserted, so that at a later time they can be queried about any instruction.
2) a pass that handles inserting the random sampling framework. This also has options to control how random samples are choosen. Currently implemented are Global counters, register allocated global counters, and read cycle counter (see? there was a reason for it).
The profiling passes are almost identical to the existing ones (block, function, and null profiling is supported right now), and they are valid passes without the sampling framework (hence the existing passes can be unified with the new ones, not done yet).
Some things are a bit ugly still, but that should be fixed up soon enough.
Other todo? making the counter values not "magic 2^16 -1" values, but dynamically choosable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24493 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-28 00:58:09 +00:00
Andrew Lenharth
105b2f5374
needs to go here to apparently.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24268 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-10 02:07:45 +00:00
Chris Lattner
3aa4e15331
Remove the LowerConstantExpressionsPass pass
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24089 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-29 05:32:20 +00:00
Chris Lattner
71478a09b5
Don't link these three passes in anymore
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23941 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-24 02:30:25 +00:00
Chris Lattner
581ba9073e
Don't invade the system namespace
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23917 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-24 00:16:03 +00:00
Chris Lattner
9b2b56ef75
There is no need for this to be VC++ only
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23915 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-24 00:08:51 +00:00
Chris Lattner
e214979f79
Make this work with the internalize change
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23812 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-19 01:41:47 +00:00
Jeff Cohen
c8beae2b6d
Add SimplyLibCalls.cpp to VC++ build
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21554 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-26 02:57:49 +00:00
Misha Brukman
34695381d6
Remove trailing whitespace
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21412 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-21 20:59:05 +00:00
Chris Lattner
da3f296854
new pass
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21307 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-15 21:13:16 +00:00
Jeff Cohen
e60f69c054
Fix VC++ build breakage
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20888 91177308-0d34-0410-b5e6-96231b3b80d8
2005-03-28 02:52:28 +00:00
Jeff Cohen
a5ba89421e
Get VC++ compiling again
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19869 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-28 07:29:32 +00:00
Jeff Cohen
6e400f76e6
Apply feed back from Chris:
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1. Rename createLoaderPass to CreateProfileLoaderPass
2. Opt shouldn't use the pass registered in CodeGen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19431 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-10 03:56:27 +00:00
Jeff Cohen
1d7b5de7ee
Add last four createXxxPass functions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19424 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-09 20:42:52 +00:00
Jeff Cohen
534927d82d
Add even more missing createXxxPass functions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19402 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-08 22:01:16 +00:00
Jeff Cohen
06deda2d9c
Add a few more passes to LinkAllPasses.h
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19371 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-08 18:15:23 +00:00
Jeff Cohen
bf65268def
Add more missing createXxxPass functions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19370 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-08 17:21:40 +00:00
Jeff Cohen
e89c7c616b
But not the identation of THAT line
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19328 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 07:46:40 +00:00
Jeff Cohen
b99468d718
Correct indentation levels
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19322 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 07:44:02 +00:00
Jeff Cohen
d9ed8c8880
Add missing createXxxPass functions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19319 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 06:57:28 +00:00
Misha Brukman
3e4c46fbd6
Fix spelling.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19317 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 06:45:07 +00:00
Jeff Cohen
c313932693
Update list of passes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19316 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07 06:12:41 +00:00
Jeff Cohen
e67bc1384a
Get the #ifdef right on LinkAllPasses.h.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19310 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-06 07:01:08 +00:00
Jeff Cohen
00f3db6a4c
Fix minor mistakes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19309 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-06 06:29:42 +00:00
Jeff Cohen
d1c452b501
Get rid of those pesky tabs...
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19308 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-06 06:06:35 +00:00
Jeff Cohen
4b807e0381
Add project opt to Visual Studio.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19307 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-06 06:02:53 +00:00