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1049 Commits

Author SHA1 Message Date
Chris Lattner
bfd643f504 IndCallGraphMap is now a pointer to a new'd map. 
llvm-svn: 20065
 2005-02-07 16:09:15 +00:00
Chris Lattner
43b0441ccb If we have an indirect call site that calls N functions, inline the N functions 
into a temporary graph, remember it for later, then inline the tmp graph into
the call site.

In the case where there are other call sites to the same set of functions, this
permits us to just inline the temporary graph instead of all of the callees.

This turns N*M inlining situations into an N+M inlining situation.

llvm-svn: 20036
 2005-02-04 19:59:49 +00:00
Chris Lattner
5f8b7b03b0 Split mergeInGraph into two methods. 
llvm-svn: 20035
 2005-02-04 19:58:28 +00:00
Chris Lattner
48828f062c Fix the Regression/Transforms/DSAnalysis/recursion.ll regression. 
llvm-svn: 20031
 2005-02-04 18:58:04 +00:00
Chris Lattner
15151dbff8 Refactor getFunctionArgumentsForCall out of mergeInGraph. 
llvm-svn: 20018
 2005-02-03 18:40:25 +00:00
Chris Lattner
56e08cc9a3 Eliminate some duplicated debug code 
llvm-svn: 19980
 2005-02-01 21:55:40 +00:00
Chris Lattner
57cdba4154 Eliminate self-recursion as a special case. 
llvm-svn: 19979
 2005-02-01 21:49:43 +00:00
Chris Lattner
b35595d4c0 Eliminate use of DSCallSiteIterator in key loop. This is a half step to 
a tasty speedup.

llvm-svn: 19978
 2005-02-01 21:37:27 +00:00
Chris Lattner
028a8a8f56 Signficantly speed up printing by not emitting the same file twice with 
different names.  Large SCC's tend to be big, so this saves a lot of time.

llvm-svn: 19970
 2005-02-01 19:10:48 +00:00
Chris Lattner
26d4a4b2d2 Do not revisit nodes in the SCC traversal. This speeds up the BU pass a bit. 
llvm-svn: 19968
 2005-02-01 17:35:52 +00:00
Chris Lattner
d9b3839cec Fix a problem where we could infinitely recurse on phi nodes. 
llvm-svn: 19955
 2005-02-01 00:18:30 +00:00
Chris Lattner
11a25d99d7 Rename variables to work with VC++'s hokey scoping rules. 
llvm-svn: 19942
 2005-01-31 00:10:58 +00:00
Chris Lattner
86f89c506f Fix some scary bugs that VC++ detected. 
llvm-svn: 19941
 2005-01-31 00:10:45 +00:00
Chris Lattner
ee6bc42f3e * Make some methods more const correct. 
* Change the FunctionCalls and AuxFunctionCalls vectors into std::lists.
  This makes many operations on these lists much more natural, and avoids
  *exteremely* expensive copying of DSCallSites (e.g. moving nodes around
  between lists, erasing a node from not the end of the vector, etc).

With a profile build of analyze, this speeds up BU DS from 25.14s to
12.59s on 176.gcc.  I expect that it would help TD even more, but I don't
have data for it.

This effectively eliminates removeIdenticalCalls and children from the
profile, going from 6.53 to 0.27s.

llvm-svn: 19939
 2005-01-30 23:51:02 +00:00
Chris Lattner
703dfdda2a Due to previous simplifications, we can simplify the data structures being 
used here.

llvm-svn: 19913
 2005-01-29 07:04:10 +00:00
Chris Lattner
0823ac4234 Properly handle volatile. 
llvm-svn: 19912
 2005-01-29 06:42:34 +00:00
Chris Lattner
8df4ba51b4 Remove some useless map operations. Loads/stores that are in the same 
BB as the load are not included in the Cand* sets at all.

llvm-svn: 19911
 2005-01-29 06:39:25 +00:00
Chris Lattner
af286e3600 Before doing expensive global analysis, check to make sure the pointer is 
not invalidated on entry and on exit of the block.  This fixes some N^2
behavior in common cases, and speeds up gcc another 5% to 22.35s.

llvm-svn: 19910
 2005-01-29 06:31:53 +00:00
Chris Lattner
43ccc5c945 Minor simplification/speedup. Replaces a set lookup with a pointer comparison. 
This speeds up 176.gcc from 25.73s to 23.48s, which is 9.5%

llvm-svn: 19907
 2005-01-29 06:20:55 +00:00
Chris Lattner
ae8d4bb675 Eliminate generality that is not buying us anything. In particular, this 
will cause us to miss cases where the input pointer to a load could be value
numbered to another load.  Something like this:


  %X = load int* %P1
  %Y = load int* %P2

Those are obviously the same if P1/P2 are the same.  The code this patch
removes attempts to handle that.  However, since GCSE iterates, this doesn't
actually buy us anything: GCSE will first replace P1 or P2 with the other
one, then the load can be value numbered as equal.

Removing this code speeds up gcse a lot.  On 176.gcc in debug mode, this
speeds up gcse from 29.08s -> 25.73s, a 13% savings.

llvm-svn: 19906
 2005-01-29 06:11:16 +00:00
Chris Lattner
68d73bed4a If we see: 
%A = alloca int
  %V = load int* %A

value number %V to undef, not 0.

llvm-svn: 19905
 2005-01-29 05:57:01 +00:00
Chris Lattner
fadcc07232 Remove this code as it is currently completely broken and unmaintained. 
If needed, this can be resurrected from CVS.

Note that several of the interfaces (e.g. the IPModRef ones) are supersumed
by generic AliasAnalysis interfaces that have been written since this code
was developed (and they are not DSA specific).

llvm-svn: 19864
 2005-01-28 06:12:46 +00:00
Chris Lattner
f03b87704f Make -ds-aa more useful, allowing it to be updated as xforms hack on the program. 
llvm-svn: 19818
 2005-01-24 20:00:14 +00:00
Chris Lattner
c9b64b9749 Silence VC++ warnings. 
llvm-svn: 19506
 2005-01-12 04:51:37 +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
6827f061cc Get lib/Analysis/DataStructure to compile with VC++ 
llvm-svn: 19412
 2005-01-09 04:18:28 +00:00
Jeff Cohen
6c0db8d863 Add even more missing createXxxPass functions. 
llvm-svn: 19402
 2005-01-08 22:01:16 +00:00
Misha Brukman
0424fc40fa Wrap at 80 cols 
llvm-svn: 19121
 2004-12-23 21:17:41 +00:00
Reid Spencer
351a3efea1 Try to speed up gccld hot spot in BasicVN::getEqualNumberNodes by making 
a function call at the core of the loop inline and removing unused
stack variables from an often called function. This doesn't improve things
much, the real saving will be by reducing the number of calls to this
function (100K+ when linking kimwitu++).

llvm-svn: 19119
 2004-12-23 21:13:26 +00:00
Chris Lattner
a2afb3775e Actually overload the virtual method. This fixes 
Regression/Analysis/GlobalsModRef/purecse.ll.  Isn't this what the
-Woverload-whatever flag would warn about :)

llvm-svn: 19018
 2004-12-17 17:12:24 +00:00
Chris Lattner
be18a7e20a Eliminate a virtual method call 
llvm-svn: 18964
 2004-12-15 18:14:04 +00:00
Chris Lattner
6fe0ea70e2 Fix a bug in -no-aa that caused two DSGraph tests to XPASS. 
llvm-svn: 18962
 2004-12-15 17:13:24 +00:00
Chris Lattner
8139749984 Adjust to new alias analysis interfaces 
llvm-svn: 18957
 2004-12-15 07:22:13 +00:00
Alkis Evlogimenos
8547388d22 Add testcase and fix for yet another case where we query the size an 
abstract type.

llvm-svn: 18678
 2004-12-08 23:56:15 +00:00
Alkis Evlogimenos
b00f884344 Add testcase and fix for another case where we query the size an 
abstract type.

llvm-svn: 18676
 2004-12-08 23:42:11 +00:00
Chris Lattner
31ba7367aa Move method out of line for better ICC support 
Add some ifdefs for some stuff I like to be able to toggle easily

llvm-svn: 18665
 2004-12-08 21:03:56 +00:00
Chris Lattner
458286d514 Properly extern this. 
llvm-svn: 18664
 2004-12-08 21:00:59 +00:00
Chris Lattner
6ebc142507 Work correctly with ICC, Patch contributed by Bjørn Wennberg 
llvm-svn: 18630
 2004-12-08 16:22:26 +00:00
Reid Spencer
d0d846cd06 For PR387:\ 
Add getModRefInfo method to avoid overloaded virtuals

llvm-svn: 18601
 2004-12-07 08:11:24 +00:00
Reid Spencer
d50c86f078 For PR387:\ 
Make only one print method to avoid overloaded virtual warnings when \
compiled with -Woverloaded-virtual

llvm-svn: 18589
 2004-12-07 04:03:45 +00:00
Chris Lattner
17ebff094f This patch prevents an infinite recursion while compiling 103.su2cor. 
All SPEC CFP 95 programs now work, though the JIT isn't loading -lf2c right
so they aren't testing correctly.

llvm-svn: 18499
 2004-12-04 20:54:32 +00:00
Chris Lattner
e65724d6eb Fix DeadStoreElimination/2004-11-28-LiveStoreDeleted.ll 
llvm-svn: 18308
 2004-11-28 20:30:15 +00:00
Chris Lattner
3c35e1e02b When merging to alias sets, if they are both must alias, the result is not 
a must alias set unless all of the pointers in the resultant set are must
aliased together.

llvm-svn: 18275
 2004-11-27 18:37:42 +00:00
Chris Lattner
ab36efe42b Add a new interface 
llvm-svn: 18266
 2004-11-26 21:36:25 +00:00
Chris Lattner
fca424bb51 When evaluating an AA, pass in size info 
llvm-svn: 18264
 2004-11-26 21:05:39 +00:00
Chris Lattner
aecb6daf08 The trick with globals actually works with allocas and malloc too 
llvm-svn: 18262
 2004-11-26 20:01:48 +00:00
Chris Lattner
e076e608d8 A store or load cannot alias a global if the accessed amount is larger then 
the global.

This implements Regression/Analysis/BasicAA/global-size.ll

llvm-svn: 18261
 2004-11-26 19:20:01 +00:00
Chris Lattner
598ab60438 Mission accomplished! 
llvm-svn: 17990
 2004-11-19 16:22:24 +00:00
Chris Lattner
bd02c10b87 Simplify conditional and fix LICM/2004-11-17-UndefIndexCrash.ll 
by saying what we mean

llvm-svn: 17913
 2004-11-17 17:39:39 +00:00