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e343483440
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285 Commits

Author SHA1 Message Date
Reid Spencer
e343483440 Fix an infinite loop bug that Vladimir Prus identified. 
llvm-svn: 28281
 2006-05-13 18:11:32 +00:00
Chris Lattner
1275941193 Add pass ID's for various passes, so they can be AddRequiredID. Patch by 
Domagoj Babic!

llvm-svn: 28048
 2006-05-02 04:24:36 +00:00
Chris Lattner
0b321ad43f remove a dead prototype 
llvm-svn: 27882
 2006-04-20 15:45:54 +00:00
Andrew Lenharth
b3f434b83d Add a simple pass to make sure that all (non-library) calls to malloc and free 
are visible to analysis as intrinsics.  That is, make sure someone doesn't pass
free around by address in some struct (as happens in say 176.gcc).

This doesn't get rid of any indirect calls, just ensure calls to free and malloc
are always direct.

llvm-svn: 27560
 2006-04-10 19:26:09 +00:00
Evan Cheng
db35180b27 For each loop, keep track of all the IV expressions inserted indexed by 
stride. For a set of uses of the IV of a stride which is a multiple
of another stride, do not insert a new IV expression. Rather, reuse the
previous IV and rewrite the uses as uses of IV expression multiplied by
the factor.

e.g.
x = 0 ...; x ++
y = 0 ...; y += 4
then use of y can be rewritten as use of 4*x for x86.

llvm-svn: 26803
 2006-03-16 21:53:05 +00:00
Evan Cheng
692235499c Added target lowering hooks which LSR consults to make more intelligent 
transformation decisions.

llvm-svn: 26738
 2006-03-13 23:14:23 +00:00
Chris Lattner
ed45ad33b7 Make the LLVM headers "-ansi -pedantic -Wno-long-long" clean. 
Patch by Martin Partel!

llvm-svn: 26313
 2006-02-22 16:23:43 +00:00
Chris Lattner
0d03d576e4 Remove a level of indirection. 
llvm-svn: 26109
 2006-02-10 21:32:11 +00:00
Chris Lattner
5c0f92e308 Remove a never-working pass 
llvm-svn: 25348
 2006-01-16 01:05:24 +00:00
Chris Lattner
3e2e2b22ec Teach inline function how to update the callgraph when it makes changes. 
llvm-svn: 25318
 2006-01-14 20:05:06 +00:00
Chris Lattner
67fb415248 Allow the code cloning interfaces to capture some important info about the 
code being cloned if the client wants.

llvm-svn: 25281
 2006-01-13 18:39:17 +00:00
Andrew Lenharth
cad1d52b64 Added documented rsprofiler interface. Also remove new profiler passes, the 
old ones have been updated to implement the interface.

llvm-svn: 24499
 2005-11-28 18:00:38 +00:00
Andrew Lenharth
311ec68cf4 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). 
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.

llvm-svn: 24493
 2005-11-28 00:58:09 +00:00
Andrew Lenharth
79ee761b69 Reg2Mem is something a pass may depend on, so allow that 
llvm-svn: 24488
 2005-11-22 22:14:23 +00:00
Andrew Lenharth
ddcbd92b23 needs to go here to apparently. 
llvm-svn: 24268
 2005-11-10 02:07:45 +00:00
Andrew Lenharth
03d60c3d09 The pass everyone has been waiting for! 
Reg2Mem

for fun you can opt -reg2mem -mem2reg

llvm-svn: 24267
 2005-11-10 01:58:38 +00:00
Nate Begeman
f299b9fb03 Add support alignment of allocation instructions. 
Add support for specifying alignment and size of setjmp jmpbufs.

No targets currently do anything with this information, nor is it presrved
in the bytecode representation.  That's coming up next.

llvm-svn: 24196
 2005-11-05 09:21:28 +00:00
Chris Lattner
dae0aafea8 Remove the LowerConstantExpressionsPass pass 
llvm-svn: 24089
 2005-10-29 05:32:20 +00:00
John Criswell
0893d5847f Move some constant folding functions into LLVMAnalysis since they are used 
by Analysis and Transformation passes.

llvm-svn: 24038
 2005-10-27 16:00:10 +00:00
Chris Lattner
bd6a973ae0 Don't link these three passes in anymore 
llvm-svn: 23941
 2005-10-24 02:30:25 +00:00
Chris Lattner
2f752062c1 Don't invade the system namespace 
llvm-svn: 23917
 2005-10-24 00:16:03 +00:00
Chris Lattner
31ac6df518 There is no need for this to be VC++ only 
llvm-svn: 23915
 2005-10-24 00:08:51 +00:00
Chris Lattner
dac26c2440 Make this work with the internalize change 
llvm-svn: 23812
 2005-10-19 01:41:47 +00:00
Chris Lattner
211f996c92 add an option to the internalize pass 
llvm-svn: 23782
 2005-10-18 06:28:16 +00:00
Chris Lattner
dbef366ea5 allow demotion to volatile values 
llvm-svn: 23472
 2005-09-27 19:38:43 +00:00
Chris Lattner
2a5d66d0e1 add a new function 
llvm-svn: 23443
 2005-09-26 05:26:32 +00:00
Chris Lattner
1fc1d60d5a add a helper 
llvm-svn: 22823
 2005-08-17 06:34:37 +00:00
Nate Begeman
ef41400067 Fix a fixme in CondPropagate.cpp by moving a PhiNode optimization into 
BasicBlock's removePredecessor routine.  This requires shuffling around
the definition and implementation of hasContantValue from Utils.h,cpp into
Instructions.h,cpp

llvm-svn: 22664
 2005-08-04 23:24:19 +00:00
Jeff Cohen
b555ae8f95 Add SimplyLibCalls.cpp to VC++ build 
llvm-svn: 21554
 2005-04-26 02:57:49 +00:00
Reid Spencer
a8e0496412 Declare a function to create the SimplifyLibCalls pass. 
llvm-svn: 21523
 2005-04-25 02:54:00 +00:00
Misha Brukman
58c97e67f3 Remove trailing whitespace 
llvm-svn: 21412
 2005-04-21 20:59:05 +00:00
Chris Lattner
8456833fa8 new pass 
llvm-svn: 21307
 2005-04-15 21:13:16 +00:00
Chris Lattner
ca287099e1 add a new prototype 
llvm-svn: 21305
 2005-04-15 19:24:49 +00:00
Jeff Cohen
1be6e1cb99 Fix VC++ build breakage 
llvm-svn: 20888
 2005-03-28 02:52:28 +00:00
Alkis Evlogimenos
e0e628a401 Rename createPromoteMemoryToRegister() to 
createPromoteMemoryToRegisterPass() to be consistent with other pass
creation functions.

llvm-svn: 20885
 2005-03-28 02:01:12 +00:00
Jeff Cohen
29ecafb2e3 Add support for not strength reducing GEPs where the element size is a small 
power of two.  This emphatically includes the zeroeth power of two.

llvm-svn: 20429
 2005-03-04 04:04:26 +00:00
Chris Lattner
f43446fb2f Add an argument. 
llvm-svn: 20413
 2005-03-03 01:03:10 +00:00
Jeff Cohen
29092b4f26 Get VC++ compiling again 
llvm-svn: 19869
 2005-01-28 07:29:32 +00:00
Jeff Cohen
8b03a55724 Apply feedback from Chris. 
llvm-svn: 19432
 2005-01-10 04:23:32 +00:00
Jeff Cohen
a7f1ae5dc0 Apply feed back from Chris: 
1. Rename createLoaderPass to CreateProfileLoaderPass
  2. Opt shouldn't use the pass registered in CodeGen.

llvm-svn: 19431
 2005-01-10 03:56:27 +00:00
Jeff Cohen
f692cd303d Add last four createXxxPass functions 
llvm-svn: 19424
 2005-01-09 20:42:52 +00:00
Jeff Cohen
6c0db8d863 Add even more missing createXxxPass functions. 
llvm-svn: 19402
 2005-01-08 22:01:16 +00:00
Jeff Cohen
69ed91d1ca Add a few more passes to LinkAllPasses.h 
llvm-svn: 19371
 2005-01-08 18:15:23 +00:00
Jeff Cohen
ce541ade79 Add more missing createXxxPass functions. 
llvm-svn: 19370
 2005-01-08 17:21:40 +00:00
Jeff Cohen
d8ac84c3f3 But not the identation of THAT line 
llvm-svn: 19328
 2005-01-07 07:46:40 +00:00
Jeff Cohen
8a926637e2 Correct indentation levels 
llvm-svn: 19322
 2005-01-07 07:44:02 +00:00
Jeff Cohen
c07c54f5b4 Add missing createXxxPass functions 
llvm-svn: 19319
 2005-01-07 06:57:28 +00:00
Misha Brukman
8b60d3e9df Fix spelling. 
llvm-svn: 19317
 2005-01-07 06:45:07 +00:00
Jeff Cohen
83039834d7 Update list of passes 
llvm-svn: 19316
 2005-01-07 06:12:41 +00:00
Jeff Cohen
8d5d10078b Fix return type 
llvm-svn: 19314
 2005-01-07 05:41:39 +00:00