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.
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llvm-svn: 19912
2005-01-29 06:42:34 +00:00
a194357025
Remove some useless map operations. Loads/stores that are in the same
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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
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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.
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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:
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%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.
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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.
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llvm-svn: 19818
2005-01-24 20:00:14 +00:00
2f8e4ad870
Silence VC++ warnings.
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llvm-svn: 19506
2005-01-12 04:51:37 +00:00
703f7db254
Apply feed back from Chris:
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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
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llvm-svn: 19424
2005-01-09 20:42:52 +00:00
14903e0148
Get lib/Analysis/DataStructure to compile with VC++
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llvm-svn: 19412
2005-01-09 04:18:28 +00:00
cede1ce95a
Add even more missing createXxxPass functions.
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llvm-svn: 19402
2005-01-08 22:01:16 +00:00
e50986b39f
Wrap at 80 cols
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llvm-svn: 19121
2004-12-23 21:17:41 +00:00
454a8afc6d
Try to speed up gccld hot spot in BasicVN::getEqualNumberNodes by making
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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
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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
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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
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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
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abstract type.
llvm-svn: 18676
2004-12-08 23:42:11 +00:00
5a0680245f
Move method out of line for better ICC support
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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
...
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
...
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.
...
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:
...
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
...
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
...
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
...
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
...
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
...
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
...
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
...
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
...
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
...
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.
...
Patch contributed by Paolo Invernizzi!
llvm-svn: 16152
2004-09-03 18:19:51 +00:00
7c16caa336
Changes For Bug 352
...
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.
...
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.
...
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.
...
llvm-svn: 15334
2004-07-29 17:30:56 +00:00
2b3387a6d9
Fix #includes of i*.h => Instructions.h as per PR403.
...
llvm-svn: 15328
2004-07-29 17:05:13 +00:00
fd7a2d4477
Merge i*.h headers into Instructions.h as part of bug403.
...
llvm-svn: 15325
2004-07-29 12:17:34 +00:00
c21acbfea4
Fix test/Regression/Analysis/BasicAA/2004-07-28-MustAliasbug.llx
...
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
...
llvm-svn: 15267
2004-07-27 08:03:18 +00:00
b696462260
Fix conservative assumption, which was quite broken. Also, notice that
...
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
...
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
...
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
...
llvm-svn: 15251
2004-07-27 02:13:55 +00:00
782ab98c56
This was implemented back in march
...
llvm-svn: 15250
2004-07-27 01:59:42 +00:00
bf8c3c405e
Add some new methods
...
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
...
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
Chris Lattner