19944fade3
remove the second argument to cloneInto
...
llvm-svn: 20754
2005-03-22 00:21:05 +00:00
03b7f99338
add some timers, don't clone aux nodes
...
llvm-svn: 20752
2005-03-22 00:12:00 +00:00
410da35a1f
move this out of line
...
llvm-svn: 20751
2005-03-22 00:09:45 +00:00
5f10e6dda1
don't generate temporary scalarmaps.
...
llvm-svn: 20749
2005-03-22 00:04:21 +00:00
848ef879c5
allow passing clone flags down to cloneInto
...
llvm-svn: 20748
2005-03-21 22:49:53 +00:00
c1439d539f
Enhance the TD pass to build composite graphs when we have indirect call
...
sites that target multiple callees. If we have a function table, for
example, with N callees, and M callers call through it, we used to have
to perform O(M*N) graph inlinings. Now we perform O(M+N) inlinings.
This speeds up the td pass on perlbmk from 36.26s to 25.75s.
llvm-svn: 20743
2005-03-21 20:31:29 +00:00
d90f5bab82
make this const correct
...
llvm-svn: 20741
2005-03-21 20:28:50 +00:00
040426aee0
Fix a major problem where we didn't add call graph edges for call sites with
...
more than 1 callee. This fixes Analysis/DSGraph/FunctionPointerTable-const.ll
llvm-svn: 20740
2005-03-21 20:20:49 +00:00
e8a43291cd
Ugh, for some reason, I can't call this unless the reference is const!?!?!?
...
llvm-svn: 20732
2005-03-21 10:00:45 +00:00
13429dc5af
The reachability cloner should add arguments to merged calls when the RHS of
...
the merge has more operands than the LHS.
llvm-svn: 20731
2005-03-21 09:39:51 +00:00
7269f15e8f
'note to self'
...
llvm-svn: 20727
2005-03-21 08:43:32 +00:00
98f7e1c370
Change the way that the TD pass inlines graphs. Instead of inlining each
...
graph into all of the functions it calls when we visit a graph, change it so
that the graph visitor inlines all of the callers of a graph into the current
graph when it visits it.
While we're at it, inline global information from the GG instead of from each
of the callers. The GG contains a superset of the info that the callers do
anyway, and this way we only need to do it one time (not one for each caller).
This speeds up the TD pass substantially on several programs, and there is
still room for improvement. For example, the TD pass used to take 147s
on perlbmk, it now takes 36s. On povray, we went from about 5s to 1.97s.
134.perl is down from ~1s for Loc+BU+TD to .6s.
The TD pass needs a lot of improvement though, which will occur with later
patches.
llvm-svn: 20723
2005-03-21 04:55:35 +00:00
c5cdc2260d
Don't strip modref bits when inlining down the call graph. This fixes
...
the DSGraph/2003-06-30-TopDownResolve.ll regression from last night.
llvm-svn: 20717
2005-03-20 18:02:56 +00:00
21ef7678d6
Remove the ability to keep track of inlined globals, which is always dead.
...
llvm-svn: 20716
2005-03-20 04:30:30 +00:00
571c62a008
This call is always a noop, remove it.
...
llvm-svn: 20714
2005-03-20 04:29:54 +00:00
b1cabb6541
remove some pointless asserts
...
llvm-svn: 20713
2005-03-20 04:29:39 +00:00
ded489ec3b
-steens doesn't use the inlined globals facility.
...
llvm-svn: 20712
2005-03-20 04:23:57 +00:00
ff634f4e32
Build EC's for globals twice. The first is after constructing the initial
...
Globals Graph for the local pass, the second is after all of the locals
graphs have been constructed. This allows for many additional global EC's
to be recognized that weren't before. This speeds up analysis of programs
like 177.mesa, where it changes DSA from taking 0.712s to 0.4018s.
llvm-svn: 20711
2005-03-20 03:32:35 +00:00
36a810ac40
Add a new DSNode::removeGlobal method.
...
llvm-svn: 20710
2005-03-20 03:29:54 +00:00
5ae215248f
Transform BU pass to not use the horrible DSCallSiteIterator class.
...
llvm-svn: 20708
2005-03-20 02:42:07 +00:00
a550a5b173
Implement new methods for dealing with DSNode global lists, rename uses of
...
old methods.
llvm-svn: 20707
2005-03-20 02:41:38 +00:00
e68e808bcd
use simpler methods.
...
llvm-svn: 20706
2005-03-20 02:41:16 +00:00
1ffdd57e0a
method was renamed.
...
llvm-svn: 20705
2005-03-20 02:40:27 +00:00
5635a88fcb
print out equiv class info.
...
llvm-svn: 20704
2005-03-20 02:40:11 +00:00
e7a8e8677e
some methods got renamed
...
llvm-svn: 20703
2005-03-20 02:40:04 +00:00
711e083c26
Make use of simpler DSNode methods.
...
llvm-svn: 20702
2005-03-20 02:39:49 +00:00
61f3befdc8
#ifdef out a function only used by #ifdef'd code.
...
llvm-svn: 20700
2005-03-20 02:14:15 +00:00
e965bd16bb
comment cleanup
...
llvm-svn: 20699
2005-03-20 01:18:00 +00:00
9379e69af9
Create an equivalence class of global variables that DSA will never be able
...
to tell apart anyway, and only track the leader for of these equivalence
classes in our graphs.
This dramatically reduces the number of GlobalValue*'s that appear in scalar
maps, which A) reduces memory usage, by eliminating many many scalarmap entries
and B) reduces time for operations that need to execute an operation for each
global in the scalar map.
As an example, this reduces the memory used to analyze 176.gcc from 1GB to
511MB, which (while it's still way too much) is better because it doesn't hit
swap anymore. On eon, this shrinks the local graphs from 14MB to 6.8MB,
shrinks the bu+td graphs of povray from 50M to 40M, shrinks the TD graphs of
130.li from 8.8M to 3.6M, etc.
This change also speeds up DSA on large programs where this makes a big
difference. For example, 130.li goes from 1.17s -> 0.56s, 134.perl goes
from 2.14 -> 0.93s, povray goes from 15.63s->7.99s (!!!).
This also apparently either fixes the problem that caused DSA to crash on
perlbmk and gcc, or it hides it, because DSA now works on these. These
both take entirely too much time in the TD pass (147s for perl, 538s for
gcc, vs 7.67/5.9s in the bu pass for either one), but this is a known
problem that I'll deal with later.
llvm-svn: 20696
2005-03-19 22:23:45 +00:00
c1b9b56a2c
Switch to use the new interface for the EquivalenceClasses class, and fix
...
a bug involving SCC's who have multiple members that are part of an EC.
llvm-svn: 20678
2005-03-19 05:15:27 +00:00
bed1c18a44
do not bother inlining nullary functions without return values. The only
...
effect these calls can have is due to global variables, and these passes
all use the globals graph to capture their effect anyway. This speeds up
the BU pass very slightly on perlbmk, reducing the number of dsnodes
allocated from 98913 to 96423.
llvm-svn: 20676
2005-03-18 23:19:47 +00:00
30525a04c1
fix a bogus assertion
...
llvm-svn: 20675
2005-03-18 23:18:30 +00:00
5bd948b4d7
another fastpath
...
llvm-svn: 20674
2005-03-18 23:18:20 +00:00
e29503a805
expose this pass to both opt and analyze
...
llvm-svn: 20672
2005-03-18 05:27:57 +00:00
a8e1a5250a
remove a bogus optimization. This only works if there are no globals in the
...
graph, and the combination of a function that does not reference globals, takes
not arguments and returns no value is pretty rare.
llvm-svn: 20670
2005-03-18 00:23:59 +00:00
3f181d7880
Rewrite DSAA::getModRefInfo to compute the mapping between caller and callee
...
to determine mod/ref behavior, instead of creating a *copy* of the caller
graph and inlining the callee graph into the copy.
This speeds up aa-eval on Ptrdist/yacr2 from 109.13s to 3.98s, and gives
identical results. The speedup is similar on other programs.
llvm-svn: 20669
2005-03-18 00:21:03 +00:00
b8d85c1a74
implement a new method.
...
llvm-svn: 20668
2005-03-17 23:45:54 +00:00
488a80a292
add some possibly bogus assertions.
...
llvm-svn: 20665
2005-03-17 20:33:27 +00:00
9c9f68c42f
Do not include the Function* for direct call/invoke instructions in the
...
alias evaluation. Clients really don't care.
llvm-svn: 20664
2005-03-17 20:25:04 +00:00
b5525529bd
simplify this function a bit, allow DS-AA to build on/improve the mod/ref
...
results returned by AA, not just use one or the other.
llvm-svn: 20662
2005-03-17 20:16:58 +00:00
8dd1491e71
Clean up some code, handle null pointer specially to avoid an assertion
...
llvm-svn: 20660
2005-03-17 19:56:56 +00:00
ea7e6548dc
Two changes:
...
1. Chain to the parent implementation of M/R analysis if we can't find
any information. It has some heuristics that often do well.
2. Do not clear all flags, this can make invalid nodes by turning nodes
that used to be collapsed into non-collapsed nodes (fixing crashes)
llvm-svn: 20659
2005-03-17 19:56:18 +00:00
7b9020a059
Fix the missing symbols problem Bill was hitting. Patch contributed by
...
Bill Wendling!!
llvm-svn: 20649
2005-03-17 15:38:16 +00:00
5251047abd
Do not create ridiculously huge DSNodes, as described in the comments.
...
This speeds up the BU pass on 172.mgrid from 62.3 -> 0.1242s.
llvm-svn: 20648
2005-03-17 05:25:34 +00:00
62462c2314
remove use of compat_iterator.
...
llvm-svn: 20643
2005-03-16 22:42:19 +00:00
f901355379
make sure to mark nodes in the globals graph incomplete after computing it
...
so that external globals (and whatever they point to) are marked incomplete.
llvm-svn: 20628
2005-03-15 22:47:18 +00:00
21a79edb27
fix crashes when we only have a prototype for main.
...
llvm-svn: 20627
2005-03-15 22:10:04 +00:00
dadf4b369e
Fix a crash that happens when mapping something like this:
...
{ short, short }
to
short
where the second short maps onto the second field of the first struct. In
this case, the struct index is not aligned, so we should avoid calling
getLink(2), which asserts out.
llvm-svn: 20626
2005-03-15 21:36:50 +00:00
dd3fb83f32
Make computeGGToGMapping compute an invnodemap
...
llvm-svn: 20622
2005-03-15 17:52:18 +00:00
d31a3d0e82
Finally fix (the right way) the problem where functions like this:
...
void foo() {
G = 1;
}
would have an empty DSGraph even though G (a global) is directly used
in the function.
llvm-svn: 20619
2005-03-15 17:14:09 +00:00
92d0c1c1ba
Start using retnodes_* for iteration.
...
llvm-svn: 20618
2005-03-15 16:55:04 +00:00
451fa32685
avoid varialbe name collisions
...
llvm-svn: 20606
2005-03-15 06:29:12 +00:00
531f9e92d4
This mega patch converts us from using Function::a{iterator|begin|end} to
...
using Function::arg_{iterator|begin|end}. Likewise Module::g* -> Module::global_*.
This patch is contributed by Gabor Greif, thanks!
llvm-svn: 20597
2005-03-15 04:54:21 +00:00
28f1caa639
Don't crash if computing a mapping to a node with zero size
...
llvm-svn: 20595
2005-03-15 04:40:24 +00:00
26415d7432
rename method, add counterpart
...
llvm-svn: 20593
2005-03-15 00:58:16 +00:00
1bdb8b7e7e
add a method to compute a commonly used mapping.
...
llvm-svn: 20588
2005-03-14 19:22:47 +00:00
9071175625
regardless of whether or not the client things we should mark globals incomplete,
...
ALWAYS mark them incomplete if they are external!
llvm-svn: 20586
2005-03-13 20:36:01 +00:00
b9e2a4dec0
Make sure to remove incomplete markers before we add to them! :)
...
llvm-svn: 20585
2005-03-13 20:32:26 +00:00
5a6609771a
The incoming arguments to main (the argv list) are not complete!
...
llvm-svn: 20584
2005-03-13 20:22:10 +00:00
2eff970892
After finishing BU analysis, move all global variables from the globals
...
graph into main and mark them complete.
llvm-svn: 20583
2005-03-13 20:15:06 +00:00
68c3caccb1
ADd support for printing eqgraphs.
...
llvm-svn: 20582
2005-03-13 19:51:24 +00:00
9cc2c3e9d6
Replace linear search with logrithmic one.
...
llvm-svn: 20580
2005-03-13 19:05:05 +00:00
97ac0a8780
make sure to mark nodes returned from functions as incomplete
...
llvm-svn: 20576
2005-03-12 14:58:28 +00:00
dd6bcbe820
remove this from the PA namespace, leaving it in the llvm ns
...
llvm-svn: 20574
2005-03-12 12:08:52 +00:00
2dd9a09837
Move this from the pool allocator project to here, where it logically belongs.
...
llvm-svn: 20570
2005-03-12 11:51:30 +00:00
562c180879
Fix Regression/Analysis/BasicAA/2005-03-09-BrokenBasicAA.ll, a miscompilation
...
that Alkis found with Java, thanks Alkis!
llvm-svn: 20531
2005-03-09 16:29:52 +00:00
adb043c2d8
Export two methods for getting -X and A-B.
...
llvm-svn: 20527
2005-03-09 05:34:41 +00:00
7c832fb0b2
Make sure the two arguments of a setcc instruction point to the same node.
...
llvm-svn: 20462
2005-03-05 19:04:31 +00:00
c01e2f76c3
Trivial cleanup patch
...
llvm-svn: 20436
2005-03-04 20:27:46 +00:00
dc166eb8f7
Fix spelling, patch contributed by Gabor Greif
...
llvm-svn: 20342
2005-02-27 06:15:51 +00:00
0b0f3520cb
DCE a dead function
...
llvm-svn: 20339
2005-02-26 23:36:45 +00:00
f05d2b3178
1 + 100 + 51 == 152, not 52.
...
If we fold three constants together (c1+c2+c3), make sure to keep
LHSC updated, instead of reusing (in this case), the 1 instead of the
partial sum.
llvm-svn: 20337
2005-02-26 18:50:19 +00:00
e99ee2b35d
Handle null a bit more carefully.
...
Actually teach dsa about select instructions. This doesn't affect the
graph in any way other than not setting a spurious U marker on pointer
nodes that are selected.
llvm-svn: 20324
2005-02-25 01:27:48 +00:00
468fd33abb
This instruction:
...
X = gep null, ...
Used to not create a scalar map entry for X, which caused clients to barf.
This is bad.
llvm-svn: 20316
2005-02-24 19:55:31 +00:00
d13cc49e19
Fix a bug introduced by revision 1.187 of this file.
...
llvm-svn: 20308
2005-02-24 18:48:07 +00:00
3166471603
Remove use of bind_obj, deleter, and finegrainify namespacification.
...
llvm-svn: 20277
2005-02-22 23:27:21 +00:00
47555decfb
Scary typo that fixes Regression/Transforms/IndVarsSimplify/2005-02-17-TruncateExprCrash.ll
...
and PR515.
llvm-svn: 20224
2005-02-17 16:54:16 +00:00
3e708301d2
Add a sanity check.
...
llvm-svn: 20195
2005-02-15 18:48:48 +00:00
219002ed8f
Add a new method to make it easy to update graphs.
...
llvm-svn: 20194
2005-02-15 18:40:55 +00:00
7b0fbe7ccf
Correct the recursive PHI node handling routines in a way that CANNOT induce
...
infinite loops (using the new replaceSymbolicValuesWithConcrete method).
This patch reverts this patch:
http://mail.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20050131/023830.html
... which was an attempted fix for this problem. Unfortunately, that patch
caused test/Regression/Transforms/IndVarsSimplify/exit_value_tests.llx to fail
and slightly castrated the entire analysis. This patch fixes it right.
This patch is dedicated to jeffc, for making me deal with this. :)
llvm-svn: 20146
2005-02-13 04:37:18 +00:00
5ce5a094aa
Use new edge iterators to simplify some code.
...
llvm-svn: 20086
2005-02-09 03:20:43 +00:00
863d9c9068
IndCallGraphMap is now a pointer to a new'd map.
...
llvm-svn: 20065
2005-02-07 16:09:15 +00:00
4585abd549
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
d1000686cd
Split mergeInGraph into two methods.
...
llvm-svn: 20035
2005-02-04 19:58:28 +00:00
ba954f3284
Fix the Regression/Transforms/DSAnalysis/recursion.ll regression.
...
llvm-svn: 20031
2005-02-04 18:58:04 +00:00
3dd3df2b55
Refactor getFunctionArgumentsForCall out of mergeInGraph.
...
llvm-svn: 20018
2005-02-03 18:40:25 +00:00
16a53243c6
Eliminate some duplicated debug code
...
llvm-svn: 19980
2005-02-01 21:55:40 +00:00
5ce51e83af
Eliminate self-recursion as a special case.
...
llvm-svn: 19979
2005-02-01 21:49:43 +00:00
50cebc6b9b
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
63a46cee87
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
d6106a41fe
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
1230cf25ba
Fix a problem where we could infinitely recurse on phi nodes.
...
llvm-svn: 19955
2005-02-01 00:18:30 +00:00
2ca79d339e
Rename variables to work with VC++'s hokey scoping rules.
...
llvm-svn: 19942
2005-01-31 00:10:58 +00:00
2977b857c2
Fix some scary bugs that VC++ detected.
...
llvm-svn: 19941
2005-01-31 00:10:45 +00:00
a1b39fa5ad
* 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
1ec230e665
Due to previous simplifications, we can simplify the data structures being
...
used here.
llvm-svn: 19913
2005-01-29 07:04:10 +00:00
ce0fa4c109
Properly handle volatile.
...
llvm-svn: 19912
2005-01-29 06:42:34 +00:00
a194357025
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
be62e72273
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
fe7a9a242e
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
787aed675d
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
b25abcb1fa
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
c782335e33
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
2e2edef9c6
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
2f8e4ad870
Silence VC++ warnings.
...
llvm-svn: 19506
2005-01-12 04:51:37 +00:00
703f7db254
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
292845d2d9
Add last four createXxxPass functions
...
llvm-svn: 19424
2005-01-09 20:42:52 +00:00
14903e0148
Get lib/Analysis/DataStructure to compile with VC++
...
llvm-svn: 19412
2005-01-09 04:18:28 +00:00
cede1ce95a
Add even more missing createXxxPass functions.
...
llvm-svn: 19402
2005-01-08 22:01:16 +00:00
e50986b39f
Wrap at 80 cols
...
llvm-svn: 19121
2004-12-23 21:17:41 +00:00
454a8afc6d
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
a12b5df616
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
aefd5fa18a
Eliminate a virtual method call
...
llvm-svn: 18964
2004-12-15 18:14:04 +00:00
869d6a40a9
Fix a bug in -no-aa that caused two DSGraph tests to XPASS.
...
llvm-svn: 18962
2004-12-15 17:13:24 +00:00
71d04bce55
Adjust to new alias analysis interfaces
...
llvm-svn: 18957
2004-12-15 07:22:13 +00:00
346ee4c9fb
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
b1ff6d7921
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
5a0680245f
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
8351112192
Properly extern this.
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llvm-svn: 18664
2004-12-08 21:00:59 +00:00
d349d4a49c
Work correctly with ICC, Patch contributed by Bjørn Wennberg
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llvm-svn: 18630
2004-12-08 16:22:26 +00:00
5c132bc3af
For PR387:\
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Add getModRefInfo method to avoid overloaded virtuals
llvm-svn: 18601
2004-12-07 08:11:24 +00:00
9083936835
For PR387:\
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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
a27dd47e7a
This patch prevents an infinite recursion while compiling 103.su2cor.
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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
1b784b117d
Fix DeadStoreElimination/2004-11-28-LiveStoreDeleted.ll
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llvm-svn: 18308
2004-11-28 20:30:15 +00:00
24bba4d237
When merging to alias sets, if they are both must alias, the result is not
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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
eeaa29c377
Add a new interface
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llvm-svn: 18266
2004-11-26 21:36:25 +00:00
f30656b437
When evaluating an AA, pass in size info
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llvm-svn: 18264
2004-11-26 21:05:39 +00:00
63b45b4768
The trick with globals actually works with allocas and malloc too
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llvm-svn: 18262
2004-11-26 20:01:48 +00:00
75819a81b2
A store or load cannot alias a global if the accessed amount is larger then
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the global.
This implements Regression/Analysis/BasicAA/global-size.ll
llvm-svn: 18261
2004-11-26 19:20:01 +00:00
1b4e78d9e6
Mission accomplished!
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llvm-svn: 17990
2004-11-19 16:22:24 +00:00
c368b63515
Simplify conditional and fix LICM/2004-11-17-UndefIndexCrash.ll
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by saying what we mean
llvm-svn: 17913
2004-11-17 17:39:39 +00:00
f5e3cfe6d6
Standardize on 'class' instead of 'struct'. Gets rid of warnings in VC++
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Patch contributed by Jeff Cohen.
llvm-svn: 17889
2004-11-16 06:58:55 +00:00
068c0cf56a
Fix a bug that was preventing povray and namd from pool allocating correctly.
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llvm-svn: 17632
2004-11-08 21:08:46 +00:00
1feea5ffc9
Handle assert_fail special
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llvm-svn: 17631
2004-11-08 21:08:28 +00:00
303bdd1e4b
Remove dead var
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llvm-svn: 17485
2004-11-05 04:52:08 +00:00
a67a030d9d
Don't call Constant::getNullValue when the argument could be VoidTy
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llvm-svn: 17457
2004-11-03 18:51:26 +00:00
e3c00e9eee
Fix comment
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llvm-svn: 17377
2004-10-31 21:54:51 +00:00
70fdac83e3
Improve comment
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llvm-svn: 17375
2004-10-31 19:57:43 +00:00
3f7dbfc898
Add more paranoid assertions :)
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llvm-svn: 17367
2004-10-31 17:45:40 +00:00
c76fef1248
Fix some more problems where we called getOffset before getNode()
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llvm-svn: 17358
2004-10-30 07:21:19 +00:00
8aa0bafe1a
Fix three bugs:
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1. Calls to external global VARIABLES should not be treated as a call to an
external function
2. Efficiently deleting an element from a vector by using std::swap with
the back, then pop_back is NOT a good way to keep the vector sorted.
3. Our hope of having stuff get deleted by making them redundant just won't
work. In particular, if we have three calls in sequence that should be
merged: A, B, C first we unify B into A. To be sure that they appeared
identical (so B would be erased) we set B = A. On the next step, we
unified C into A and set C = A. Unfortunately, this is no guarantee that
C = B, so we would fail to delete the dead call. Switch to a more
explicit scheme.
llvm-svn: 17357
2004-10-30 05:41:23 +00:00
bc740090a9
Fix more undefined behavior
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llvm-svn: 17356
2004-10-30 04:22:45 +00:00
ba96f0fd83
* Add a method
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* change some uses of NH.getNode() in a bool context to use !NH.isNull()
* Fix a bunch of places where we depended on the (undefined) order of
evaluation of arguments to function calls to ensure that getNode() was
called before getOffset(). In practice, this was NOT happening.
llvm-svn: 17354
2004-10-30 04:05:01 +00:00
6bbc57ec12
Fix library name.
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llvm-svn: 17306
2004-10-28 05:36:48 +00:00
57cbe39d1e
Change Library Names Not To Conflict With Others When Installed
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llvm-svn: 17286
2004-10-27 23:18:45 +00:00
7dfc2d29ac
Convert 'struct' to 'class' in various places to adhere to the coding standards
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and work better with VC++. Patch contributed by Morten Ofstad!
llvm-svn: 17281
2004-10-27 16:14:51 +00:00
fda51a5933
add support for UndefValue
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llvm-svn: 17260
2004-10-26 16:23:03 +00:00
43df507fef
Patch to support MSVC, contributed by Morten Ofstad
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llvm-svn: 17214
2004-10-25 18:40:08 +00:00
c1c320c335
We won't use automake
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llvm-svn: 17155
2004-10-22 03:35:04 +00:00
6a11a75f31
Initial automake generated Makefile template
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llvm-svn: 17136
2004-10-18 23:55:41 +00:00
98e541457b
Add support for unreachable
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llvm-svn: 17056
2004-10-16 18:21:33 +00:00
61753bf847
Add support for undef
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llvm-svn: 17055
2004-10-16 18:19:26 +00:00
2978437b76
Add support
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llvm-svn: 17052
2004-10-16 18:16:19 +00:00
3c3e058406
Be more careful about looking for constants when we really want constantint's.
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llvm-svn: 17029
2004-10-16 16:07:10 +00:00
52a126cb3e
Do not use the same variable name for two different variables in the
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same scope. This confused VC++ (and probably people too!). Patch by
Morten Ofstad!
llvm-svn: 16985
2004-10-14 14:59:16 +00:00
ace94df71f
Update to reflect changes in Makefile rules.
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llvm-svn: 16950
2004-10-13 11:46:52 +00:00
ec901cc6cd
This nutty patch has been in my tree since before 1.3 went out, and it needs
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to go in. This patch allows us to compute the trip count of loops controlled
by values loaded from constant arrays. The cannonnical example of this is
strlen when passed a constant argument:
for (int i = 0; "constantstring"[i]; ++i) ;
return i;
In this case, it will compute that the loop executes 14 times, which means
that the exit value of i is 14. Because of this, the loop gets DCE'd and
we are happy. This also applies to anything that does similar things, e.g.
loops like this:
const float Array[] = { 0.1, 2.1, 3.2, 23.21 };
for (int i = 0; Array[i] < 20; ++i)
and is actually fairly general.
The problem with this is that it almost never triggers. The reason is that
we run indvars and the loop optimizer only at compile time, which is before
things like strlen and strcpy have been inlined into the program from libc.
Because of this, it almost never is used (it triggers twice in specint2k).
I'm committing it because it DOES work, may be useful in the future, and
doesn't slow us down at all. If/when we start running the loop optimizer
at link-time (-O4?) this will be very nice indeed :)
llvm-svn: 16926
2004-10-12 01:49:27 +00:00
6faf3949f6
Fix SingleSource/Benchmarks/McGill/chomp
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llvm-svn: 16912
2004-10-11 04:07:27 +00:00
e2d1af8be0
Build both archive and relinked objects
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llvm-svn: 16892
2004-10-10 22:17:39 +00:00
b84cbf2725
Initial version of automake Makefile.am file.
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llvm-svn: 16885
2004-10-10 20:43:57 +00:00
3ae7bb6b7c
Fix a nasty dangling pointer problem, due to a free'd pointer being left in
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a map. This caused problems if a later object happened to be allocated at
the free'd object's address.
llvm-svn: 16813
2004-10-07 20:01:31 +00:00
af88fcd4c9
Dont' let null nodes sneak past cast instructions
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llvm-svn: 16779
2004-10-06 19:29:13 +00:00
4f2cf030e8
'Pass' should now not be derived from by clients. Instead, they should derive
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from ModulePass. Instead of implementing Pass::run, then should implement
ModulePass::runOnModule.
llvm-svn: 16436
2004-09-20 04:48:05 +00:00
135419193e
Finegrainify namespacification
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'Pass' should now not be derived from by clients. Instead, they should derive
from ModulePass. Instead of implementing Pass::run, then should implement
ModulePass::runOnModule.
llvm-svn: 16434
2004-09-20 04:44:31 +00:00
d6d99dfa3f
Fix a nasty iterator invalidation problem I introduced yesterday. This
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unfortunately is the cause of a bunch of failures from tonight, and the
reason the tester is running so slow :(
llvm-svn: 16407
2004-09-19 19:01:06 +00:00
824a21868b
Add CallGraphNode::removeAnyCallEdgeTo method
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llvm-svn: 16398
2004-09-18 21:34:34 +00:00
85d5ccc006
When changing a function, make sure to update the CallGraphNode for the
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function, not just the CallGraph.
llvm-svn: 16388
2004-09-18 00:27:20 +00:00
e81c2aa42a
Implement new changeFunction method, nuke a never implemented one.
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llvm-svn: 16386
2004-09-18 00:22:13 +00:00
6614946443
Convert code to compile with vc7.1.
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Patch contributed by Paolo Invernizzi. Thanks Paolo!
llvm-svn: 16368
2004-09-15 17:06:42 +00:00
6fa9665095
Add some assertions
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llvm-svn: 16366
2004-09-15 16:59:47 +00:00
ab64481f1d
Implement an AliasSetTracker::copyValue method
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llvm-svn: 16344
2004-09-14 19:15:32 +00:00
a5c04ee50f
Fixes to make LLVM compile with vc7.1.
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Patch contributed by Paolo Invernizzi!
llvm-svn: 16152
2004-09-03 18:19:51 +00:00
7c16caa336
Changes For Bug 352
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Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.
llvm-svn: 16137
2004-09-01 22:55:40 +00:00
12324753f2
Fix a bug that caused the pass to go into infinite loops on trivial testcases.
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This is fallout of the Bug 122 changes.
llvm-svn: 15811
2004-08-16 05:38:02 +00:00
6b54110281
Add standard print/dump methods to CallGraph classes.
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llvm-svn: 15569
2004-08-08 03:27:49 +00:00
7e36902bd9
Hide this option
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llvm-svn: 15415
2004-08-02 20:16:21 +00:00
63b38bd2ed
Fix #includes of i*.h => Instructions.h as per PR403.
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llvm-svn: 15334
2004-07-29 17:30:56 +00:00
2b3387a6d9
Fix #includes of i*.h => Instructions.h as per PR403.
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llvm-svn: 15328
2004-07-29 17:05:13 +00:00
fd7a2d4477
Merge i*.h headers into Instructions.h as part of bug403.
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llvm-svn: 15325
2004-07-29 12:17:34 +00:00
c21acbfea4
Fix test/Regression/Analysis/BasicAA/2004-07-28-MustAliasbug.llx
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This also fixes the miscompilation of MallocBench/gs with dead store
elimination enabled.
llvm-svn: 15324
2004-07-29 07:56:39 +00:00
38b79e8fbc
Make the create...() functions for some of these passes return a FunctionPass *.
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llvm-svn: 15276
2004-07-27 17:43:21 +00:00
036d2b0c4d
nuke pointless -debug output
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llvm-svn: 15267
2004-07-27 08:03:18 +00:00
b696462260
Fix conservative assumption, which was quite broken. Also, notice that
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functions known to not access memory (like sin/cos) don't access memory! :)
llvm-svn: 15264
2004-07-27 07:46:26 +00:00
731381dc0e
Remove a bogus assertion
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llvm-svn: 15261
2004-07-27 07:22:21 +00:00
3a353e84b7
Complete rewrite of this pass to be faster, use less memory, be easier to
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understand, and more accurate to boot! This implements
GlobalModRef/purecse.ll over the previous impl.
llvm-svn: 15260
2004-07-27 06:40:37 +00:00
9b323c3521
Use context-sensitive alias analysis to avoid pessimization in clients of
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AliasSetTracker (dse and licm). This implements
DeadStoreElimination/context-sensitive.llx
llvm-svn: 15254
2004-07-27 02:20:26 +00:00
aa05a6e5a1
Make basicaa a bit more aggressive
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llvm-svn: 15252
2004-07-27 02:18:52 +00:00
6b570266b8
basic-aa can actually provide simple mod/ref info
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llvm-svn: 15251
2004-07-27 02:13:55 +00:00
782ab98c56
This was implemented back in march
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llvm-svn: 15250
2004-07-27 01:59:42 +00:00
bf8c3c405e
Add some new methods
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llvm-svn: 15230
2004-07-26 05:50:23 +00:00
0c73a1ff05
Fix a latent bug in the AliasSetTracker that was exposed by the FreeInst additions and broke a bunch of programs last night.
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llvm-svn: 15214
2004-07-25 18:32:01 +00:00
924c68dcb2
Add support for free instructions
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llvm-svn: 15197
2004-07-25 07:57:37 +00:00
053427ff4f
Clean up reference counting to stop "leaking" alias sets
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llvm-svn: 15099
2004-07-22 07:58:18 +00:00
902dcf0729
These files don't need to include <iostream> since they include "Support/Debug.h".
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llvm-svn: 15089
2004-07-21 20:50:33 +00:00
abc4f4523f
Add capability to remove aliasing aliassets from an AST
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llvm-svn: 15066
2004-07-21 07:04:26 +00:00
2cfaef23e4
Make the AST interface a bit richer by returning whether an insertion caused
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an insertion or not (because the pointer set already existed).
llvm-svn: 15064
2004-07-21 05:18:04 +00:00
fdcf624939
Do not ignore casts unless they are pointer-pointer casts. This caused us
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to miscompile the SingleSource/Regression/C++/pointer_member.cpp program.
llvm-svn: 15062
2004-07-21 03:56:54 +00:00
30d69a5af9
bug 122:
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- Replace ConstantPointerRef usage with GlobalValue usage
- Minimize redundant isa<GlobalValue> usage
- Correct isa<Constant> for GlobalValue subclass
llvm-svn: 14942
2004-07-18 00:18:30 +00:00
3bbaaaa940
Fix incorrect computation of mod/ref sets. Do not ask for mod/ref information
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for objects of size 0.
llvm-svn: 14908
2004-07-17 07:40:34 +00:00
2e8690bf57
Print modref information in a useful way.
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llvm-svn: 14907
2004-07-17 06:43:20 +00:00
Chris Lattner