Chris Lattner
18d1f19fba
Implement SimplifyCFG/PhiEliminate.ll
...
Having a proper 'select' instruction would allow the elimination of a lot
of the special case cruft in this patch, but we don't have one yet.
llvm-svn: 11307
2004-02-11 03:36:04 +00:00
Chris Lattner
838b845781
The hasConstantReferences predicate always returns false.
...
llvm-svn: 11301
2004-02-11 01:17:07 +00:00
Chris Lattner
3232bbb9d8
initialization calls now return argc. If the program uses the argc value
...
passed into main, make sure they use the return value of the init call
instead of the one passed in.
llvm-svn: 11262
2004-02-10 17:41:01 +00:00
Chris Lattner
37d46f4815
Only add the global variable with the abort message if an unwind actually
...
occurs in the program.
llvm-svn: 11249
2004-02-09 22:48:47 +00:00
Chris Lattner
e3af6f73ce
Don't depend on auto data conversion
...
llvm-svn: 11229
2004-02-09 05:16:30 +00:00
Chris Lattner
ac6db755c3
Adjust to the changed StructType interface. In particular, getElementTypes() is gone.
...
llvm-svn: 11228
2004-02-09 04:37:31 +00:00
Chris Lattner
fa829be4d3
Start using the new and improve interface to FunctionType arguments
...
llvm-svn: 11224
2004-02-09 04:14:01 +00:00
Chris Lattner
57ea2e3294
The ConstantExpr::getCast call can cause a CPR to be generated. If so,
...
strip it off.
llvm-svn: 11213
2004-02-09 00:20:55 +00:00
Misha Brukman
3480e935d0
Fix grammar-o.
...
llvm-svn: 11210
2004-02-08 22:27:33 +00:00
Chris Lattner
3b7f6b2217
Improve compatibility with programs that already have a prototype for 'write',
...
even if it is wierd in some way.
llvm-svn: 11207
2004-02-08 22:14:44 +00:00
Chris Lattner
fae8ab3088
rename the "exceptional" destination of an invoke instruction to the 'unwind' dest
...
llvm-svn: 11202
2004-02-08 21:44:31 +00:00
Chris Lattner
56997dd283
Fix PR225: [pruneeh] -pruneeh pass removes invoke instructions it shouldn't
...
llvm-svn: 11200
2004-02-08 21:15:59 +00:00
Chris Lattner
071bc60450
splitBasicBlock "does the right thing" now, no reason to reposition it.
...
llvm-svn: 11199
2004-02-08 20:49:07 +00:00
Chris Lattner
108cadc274
Implement proper invoke/unwind lowering.
...
This fixed PR16 "[lowerinvoke] The -lowerinvoke pass does not insert calls to setjmp/longjmp"
llvm-svn: 11195
2004-02-08 19:53:56 +00:00
Chris Lattner
476488e669
Add a call to 'write' right before the call to abort() in the unwind path.
...
This causes the JIT, or LLC'd program to print out a nice message, explaining
WHY the program aborted.
llvm-svn: 11184
2004-02-08 07:30:29 +00:00
Chris Lattner
2dd1c8d8ce
Fix another dominator update bug. These bugs keep getting exposed because GCSE
...
keeps finding more code motion opportunities now that the dominators are correct!
llvm-svn: 11142
2004-02-05 23:20:59 +00:00
Chris Lattner
c0c953f0bc
Fix bug updating dominators
...
llvm-svn: 11140
2004-02-05 22:33:26 +00:00
Chris Lattner
f978c421e5
Add debug output
...
llvm-svn: 11139
2004-02-05 22:33:19 +00:00
Chris Lattner
14ab84a483
Fix PR223: Loopsimplify incorrectly updates dominator information
...
The problem is that the dominator update code didn't "realize" that it's
possible for the newly inserted basic block to dominate anything. Because
it IS possible, stuff was getting updated wrong.
llvm-svn: 11137
2004-02-05 21:12:24 +00:00
Chris Lattner
39ad6f2772
Minor speedup, don't query ValueMap each time through the loop
...
llvm-svn: 11123
2004-02-04 21:44:26 +00:00
Chris Lattner
6f8865bf9f
Two changes:
...
1. Don't scan to the end of alloca instructions in the caller function to
insert inlined allocas, just insert at the top. This saves a lot of
time inlining into functions with a lot of allocas.
2. Use splice to move the alloca instructions over, instead of remove/insert.
This allows us to transfer a block at a time, and eliminates a bunch of
silly symbol table manipulations.
This speeds up the inliner on the testcase in PR209 from 1.73s -> 1.04s (67%)
llvm-svn: 11118
2004-02-04 21:33:42 +00:00
Chris Lattner
0fa8c7c321
Optimize the case where we are inlining a function that contains only one basic block,
...
and that basic block ends with a return instruction. In this case, we can just splice
the cloned "body" of the function directly into the source basic block, avoiding a lot
of rearrangement and splitBasicBlock's linear scan over the split block. This speeds up
the inliner on the testcase in PR209 from 2.3s to 1.7s, a 35% reduction.
llvm-svn: 11116
2004-02-04 04:17:06 +00:00
Chris Lattner
8d414ad035
Adjust to the new BasicBlock ctor, which requires a function parameter
...
llvm-svn: 11114
2004-02-04 03:58:28 +00:00
Chris Lattner
0ff9da5fed
Remove unneeded code now that splitBasicBlock does the "right thing"
...
llvm-svn: 11111
2004-02-04 03:21:51 +00:00
Chris Lattner
18ef3fda57
More refactoring. Move alloca instructions and handle invoke instructions
...
before we delete the original call site, allowing slight simplifications of
code, but nothing exciting.
llvm-svn: 11109
2004-02-04 02:51:48 +00:00
Chris Lattner
9fc977eac4
Move the cloning of the function body much earlier in the inlinefunction
...
process. The only optimization we did so far is to avoid creating a
PHI node, then immediately destroying it in the common case where the
callee has one return statement. Instead, we just don't create the return
value. This has no noticable performance impact, but paves the way for
future improvements.
llvm-svn: 11108
2004-02-04 01:41:09 +00:00
Chris Lattner
a6578ef318
Give CloneBasicBlock an optional function argument to specify which function
...
to add the cloned block to. This allows the block to be added to the function
immediately, and all of the instructions to be immediately added to the function
symbol table, which speeds up the inliner from 3.7 -> 3.38s on the PR209.
llvm-svn: 11107
2004-02-04 01:19:43 +00:00
Chris Lattner
ae51cae111
Bunch up all locally used allocas by the block they are allocated in, and
...
process them all as a group. This speeds up SRoA/mem2reg from 28.46s to
0.62s on the testcase from PR209.
llvm-svn: 11100
2004-02-03 22:34:12 +00:00
Chris Lattner
3784188620
Handle extremely trivial cases extremely efficiently. This speeds up
...
SRoA/mem2reg from 41.2s to 27.5s on the testcase in PR209.
llvm-svn: 11099
2004-02-03 22:00:33 +00:00
Chris Lattner
c2f0aa58df
Disable (x - (y - z)) => (x + (z - y)) optimization for floating point.
...
llvm-svn: 11083
2004-02-02 20:09:56 +00:00
Chris Lattner
cacd30b957
Update comment
...
llvm-svn: 11082
2004-02-02 20:09:22 +00:00
Brian Gaeke
6204e75c4a
Make deadarghaX0r warning louder.
...
(I just love typing haX0r. haX0r haX0r haX0r.)
llvm-svn: 11079
2004-02-02 19:32:27 +00:00
Chris Lattner
ed9b12c31a
Disable tail duplication in any "hard" cases, where it might break SSA form.
...
llvm-svn: 11052
2004-02-01 06:32:28 +00:00
Chris Lattner
7c91a6176c
Fix the count of the number of instructions removed
...
llvm-svn: 11049
2004-02-01 05:15:07 +00:00
Misha Brukman
bf43787f33
Hyphenate `target-dependent'
...
llvm-svn: 11003
2004-01-28 20:43:01 +00:00
Chris Lattner
1f7942fe7d
Fix InstCombine/2004-01-13-InstCombineInvokePHI.ll, which also fixes lots
...
of C++ programs in Shootout-C++, including lists1 and moments, etc
llvm-svn: 10845
2004-01-14 06:06:08 +00:00
Chris Lattner
6b052f2154
Clean up #includes
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llvm-svn: 10799
2004-01-12 19:56:36 +00:00
Chris Lattner
fcf21a75b0
Fix bug in previous checkin
...
llvm-svn: 10798
2004-01-12 19:47:05 +00:00
Chris Lattner
c1e7cc0fbe
Eliminate use of ConstantHandling and ConstantExpr::getShift interfaces
...
llvm-svn: 10796
2004-01-12 19:35:11 +00:00
Chris Lattner
d7ccc9e5a5
Add header file I accidentally removed in teh shuffle
...
llvm-svn: 10795
2004-01-12 19:15:20 +00:00
Chris Lattner
c9fb4a3b89
Remove use of the ConstantHandling interfaces
...
llvm-svn: 10793
2004-01-12 19:12:50 +00:00
Chris Lattner
429963742e
Remove use of ConstantExpr::getShift
...
llvm-svn: 10792
2004-01-12 19:10:58 +00:00
Chris Lattner
1b7d4d7b63
Don't use ConstantExpr::getShift anymore
...
llvm-svn: 10791
2004-01-12 19:08:43 +00:00
Chris Lattner
2853a7ed22
Remove use of ConstantHandling
...
llvm-svn: 10789
2004-01-12 18:35:03 +00:00
Chris Lattner
118a76cb2f
Remove unneeded #include
...
llvm-svn: 10788
2004-01-12 18:33:54 +00:00
Chris Lattner
fc6c859a0c
Move llvm::ConstantFoldInstruction from VMCore to here, next to ConstantFoldTerminator
...
llvm-svn: 10785
2004-01-12 18:25:22 +00:00
Chris Lattner
81d8822396
Remove uses of ConstantHandling itf
...
llvm-svn: 10783
2004-01-12 18:12:44 +00:00
Chris Lattner
0fe5b32c01
Use constantexprs for casts. Eliminate use of the ConstantHandling interfaces
...
llvm-svn: 10779
2004-01-12 17:43:40 +00:00
Chris Lattner
fe992d4332
Fix fairly severe bug in my last checking where we treated all unfoldable
...
constants as being "true" when evaluating branches. This was introduced
because we now create constantexprs for the constants instead of failing the
fold.
llvm-svn: 10778
2004-01-12 17:40:36 +00:00
Chris Lattner
49f74522ec
* Implement minor performance optimization for the getelementptr case
...
* Implement SCCP of load instructions, implementing Transforms/SCCP/loadtest.ll
This allows us to fold expressions like "foo"[2], even if the pointer is only
a conditional constant.
llvm-svn: 10767
2004-01-12 04:29:41 +00:00
Chris Lattner
7e8af38637
Do not hack on volatile loads. I'm not sure what the point of a volatile load
...
from constant memory is, but lets not take chances.
llvm-svn: 10765
2004-01-12 04:13:56 +00:00
Chris Lattner
05fe6847a8
Implement SCCP/phitest.ll
...
llvm-svn: 10763
2004-01-12 03:57:30 +00:00
Chris Lattner
fafa2ff2d6
Implement Transforms/ScalarRepl/phinodepromote.ll, which is an important
...
case that the C/C++ front-end generates.
llvm-svn: 10761
2004-01-12 01:18:32 +00:00
Chris Lattner
3bcecb92f3
Update obsolete comments
...
Fix iterator invalidation problems which was causing -mstrip to miss some
entries, and read free'd memory. This shrinks the symbol table of 254.gap
from 333 to 284 bytes! :)
llvm-svn: 10751
2004-01-10 21:36:49 +00:00
Chris Lattner
df3c342a4c
Finegrainify namespacification
...
llvm-svn: 10727
2004-01-09 06:12:26 +00:00
Chris Lattner
fdf788eebd
Remove dependence on structure index type. s/MT/FT
...
llvm-svn: 10726
2004-01-09 06:02:51 +00:00
Chris Lattner
49525f8cf4
Finegrainify namespacification
...
llvm-svn: 10725
2004-01-09 06:02:20 +00:00
Chris Lattner
ff66958154
Finegrainify namespacification
...
add flags for PR82
llvm-svn: 10724
2004-01-09 05:53:38 +00:00
Chris Lattner
9cc1a0e40d
Inching towards fixing PR82
...
llvm-svn: 10722
2004-01-09 05:44:50 +00:00
Chris Lattner
59d2d7fc33
Improve encapsulation in the Loop and LoopInfo classes by eliminating the
...
getSubLoops/getTopLevelLoops methods, replacing them with iterator-based
accessors.
llvm-svn: 10714
2004-01-08 00:09:44 +00:00
Chris Lattner
56db5e98c8
Merging constants can cause further room for improvement. Iterate until
...
we converge
llvm-svn: 10618
2003-12-28 07:19:08 +00:00
Chris Lattner
30513e0a3a
rename ClassifyExpression -> ClassifyExpr
...
llvm-svn: 10592
2003-12-23 08:04:08 +00:00
Chris Lattner
7e755e443f
More minor non-functional changes. This now computes the exit condition, though
...
it doesn't do anything with it.
llvm-svn: 10590
2003-12-23 07:47:09 +00:00
Chris Lattner
93bfb6c741
Remove extraneous #include
...
finegrainify namespacification
llvm-svn: 10589
2003-12-23 07:43:38 +00:00
Chris Lattner
c2ee05427e
Fix memory corruption bug PR193
...
llvm-svn: 10586
2003-12-22 23:49:36 +00:00
Chris Lattner
a02d5aa6ce
Don't mind me, I'm just refactoring away. This patch makes room for LFTR, but
...
contains no functionality changes.
llvm-svn: 10583
2003-12-22 09:53:29 +00:00
Chris Lattner
6449dcefbc
Implement IndVarsSimplify/pointer-indvars.ll, transforming pointer
...
arithmetic into "array subscripts"
llvm-svn: 10580
2003-12-22 05:02:01 +00:00
Chris Lattner
d3678bc7c5
Fix PR194
...
llvm-svn: 10573
2003-12-22 03:58:44 +00:00
Chris Lattner
fc7bdac1b3
Fix ADCE/2003-12-19-MergeReturn.llx
...
llvm-svn: 10539
2003-12-19 09:08:34 +00:00
Chris Lattner
918460190f
Remove the wierd "Operands" loop, by traversing basicblocks in reverse order
...
llvm-svn: 10536
2003-12-19 08:18:16 +00:00
Chris Lattner
547192d688
Implement LICM/sink_multiple.ll, by sinking all possible instructions in the
...
loop before hoisting any.
llvm-svn: 10534
2003-12-19 07:22:45 +00:00
Chris Lattner
031a3f8cc7
Generalize a special case to fix PR187
...
llvm-svn: 10531
2003-12-19 06:27:08 +00:00
Chris Lattner
91daeb5431
Factor code out into the Utils library
...
llvm-svn: 10530
2003-12-19 05:58:40 +00:00
Chris Lattner
04efa4b155
Add new function
...
llvm-svn: 10529
2003-12-19 05:56:28 +00:00
John Criswell
b22e9b4b35
Reverted back to previous revision - this was previously merged
...
according to the CVS log messages.
llvm-svn: 10517
2003-12-18 17:19:19 +00:00
John Criswell
86a3a48697
Merged in RELEASE_11.
...
llvm-svn: 10516
2003-12-18 16:43:17 +00:00
Chris Lattner
9e2b42a0c8
When we delete instructions from the loop, make sure to remove them from the
...
AliasSetTracker as well.
llvm-svn: 10507
2003-12-18 08:12:32 +00:00
Chris Lattner
6c08bb8b8e
Fix for PR185 & IndVarsSimplify/2003-12-15-Crash.llx
...
llvm-svn: 10473
2003-12-15 17:34:02 +00:00
Chris Lattner
884e824534
Refactor code just a little bit, allowing us to implement TailCallElim/return_constant.ll
...
llvm-svn: 10467
2003-12-14 23:57:39 +00:00
Chris Lattner
d1c371c32c
Do not promote volatile alias sets into registers
...
llvm-svn: 10458
2003-12-14 04:52:31 +00:00
Chris Lattner
34399dda2d
Fix LICM/2003-12-11-SinkingToPHI.ll, and quite possibly all of the other known problems in the universe.
...
llvm-svn: 10409
2003-12-11 22:23:32 +00:00
Chris Lattner
027253b0d5
verifyFunction depends on dominator info, which levelraise does not declare
...
that it needs. This is pretty scary code! This fixes
Regression.Transforms.LevelRaise.2002-07-16-SourceAndDestCrash
Regression.Transforms.LevelRaise.2002-07-31-AssertionFailure
llvm-svn: 10406
2003-12-11 21:47:37 +00:00
Chris Lattner
6281fd3ead
Fix bug: LICM/sink_multiple_exits.ll
...
Thanks for pointing this out John :)
llvm-svn: 10387
2003-12-10 22:35:56 +00:00
Chris Lattner
55c2113b7b
Don't allow dead instructions to stop sinking early.
...
llvm-svn: 10386
2003-12-10 20:43:29 +00:00
Chris Lattner
713907e2b8
Fix bug: IndVarsSimplify/2003-12-10-RemoveInstrCrash.llx
...
llvm-svn: 10385
2003-12-10 20:43:04 +00:00
Chris Lattner
7e5bd59da2
Finegrainify namespacification
...
Fix bug: LowerInvoke/2003-12-10-Crash.llx
llvm-svn: 10382
2003-12-10 20:22:42 +00:00
Chris Lattner
ccd9f3c1f8
Finegrainify namespacification
...
Reorder #includes
Implement: IndVarsSimplify/2003-12-10-IndVarDeadCode.ll
llvm-svn: 10376
2003-12-10 18:06:47 +00:00
Chris Lattner
7710f2f49e
Finegrainify namespacification
...
Fix bug: LoopSimplify/2003-12-10-ExitBlocksProblem.ll
llvm-svn: 10373
2003-12-10 17:20:35 +00:00
Chris Lattner
6364314a6e
Simplify code
...
llvm-svn: 10371
2003-12-10 16:58:24 +00:00
Chris Lattner
48b4b852b4
Avoid performing two identical lookups when one will suffice
...
llvm-svn: 10370
2003-12-10 16:57:24 +00:00
Chris Lattner
edda1af35a
Make LICM itself a bit more efficient, and make the generated code more efficient too: don't insert a store in every exit block, because a particular block may be exited to more than once by a loop
...
llvm-svn: 10369
2003-12-10 15:56:24 +00:00
Chris Lattner
aaaea51090
Implement instruction sinking out of loops. This still can do a little bit
...
better job, but this is the majority of the work. This implements
LICM/sink*.ll
llvm-svn: 10358
2003-12-10 06:41:05 +00:00
Chris Lattner
6c237bcdf2
Do not insert one entry PHI nodes in split exit blocks!
...
llvm-svn: 10348
2003-12-09 23:12:55 +00:00
Chris Lattner
65c1193d55
Refactor code a little bit, eliminating the gratuitous InstVisitor, which
...
should make subsequent changes simpler. This also allows us to hoist vaarg
and vanext instructions
llvm-svn: 10342
2003-12-09 19:32:44 +00:00
Chris Lattner
c05176843e
Fine grainify namespacification
...
Code cleanups
Make LICM::SafeToHoist marginally more efficient
llvm-svn: 10341
2003-12-09 17:18:00 +00:00
Chris Lattner
50663a1a78
Implement: TailCallElim/accum_recursion_constant_arg.ll
...
Also make sure to clean up any PHI nodes that are inserted which are pointless.
llvm-svn: 10333
2003-12-08 23:37:35 +00:00
Chris Lattner
198e620752
Implement: test/Regression/Transforms/TailCallElim/accum_recursion.ll
...
We now insert accumulator variables as necessary to eliminate tail recursion
more aggressively. This is still fairly limited, but allows us to transform
fib/factorial, and other functions into nice happy loops. :)
llvm-svn: 10332
2003-12-08 23:19:26 +00:00
Chris Lattner
a7b6f3ab9c
Cleanup and restructure the code to make it easier to read and maintain.
...
The only functionality change is that we now implement:
Regression/Transforms/TailCallElim/intervening-inst.ll
Which is really kinda pointless, because it means that trivially dead code
does not interfere with -tce, but trivially dead code probably wouldn't be
around anytime when this pass is run anyway.
The point of including this change it to support other more aggressive
transformations when we have the analysis capabilities to do so.
llvm-svn: 10312
2003-12-08 05:34:54 +00:00
Chris Lattner
771804b541
Implement RaiseAllocations/FreeCastConstantExpr.ll
...
llvm-svn: 10305
2003-12-07 01:42:08 +00:00
Chris Lattner
8427bffb9a
* Finegrainify namespacification
...
* Transform: free <ty>* (cast <ty2>* X to <ty>*) into free <ty2>* X
llvm-svn: 10303
2003-12-07 01:24:23 +00:00
Chris Lattner
40d2aeb28f
Finegrainify namespacification
...
Fix regressions ScalarRepl/basictest.ll & arraytest.ll
llvm-svn: 10287
2003-12-02 17:43:55 +00:00
Chris Lattner
8384f97ee4
Fix test: Transforms/LevelRaise/2003-11-28-IllegalTypeConversion.ll
...
Some gep generalization changes
llvm-svn: 10252
2003-11-29 05:31:25 +00:00
Chris Lattner
52310702a1
Do not use index type to determine what it is indexing into!
...
llvm-svn: 10226
2003-11-25 21:09:18 +00:00
Chris Lattner
28ebb3e0a6
Delete dead line
...
llvm-svn: 10164
2003-11-22 02:26:17 +00:00
Chris Lattner
f40cdbe856
Fix bug: Transforms/PruneEH/2003-11-21-PHIUpdate.llx
...
llvm-svn: 10163
2003-11-22 02:20:36 +00:00
Chris Lattner
4cc2cc5c58
Do not crash when deleing a region with a dead invoke instruction
...
llvm-svn: 10161
2003-11-22 02:13:08 +00:00
Chris Lattner
1ad805977d
Finegrainify namespacification
...
The module stripping pass should not strip symbols on external globals
llvm-svn: 10157
2003-11-22 01:29:35 +00:00
Chris Lattner
61b3f20bf1
Considering that CI is not even IN SCOPE here, I wooda thought the compiler
...
would have caught this. *sigh*
llvm-svn: 10142
2003-11-21 21:57:29 +00:00
Chris Lattner
f52e03c79e
Finegrainify namespacification
...
llvm-svn: 10138
2003-11-21 21:54:22 +00:00
Chris Lattner
456031eed7
Get rid of using decls, finegrainify namespacification
...
llvm-svn: 10137
2003-11-21 21:52:10 +00:00
Chris Lattner
51c28a5c1b
* Finegrainify namespacification
...
* Make the cost metric for passing constants in as arguments to functions MUCH
more accurate, by actually estimating the amount of code that will be constant
propagated away.
llvm-svn: 10136
2003-11-21 21:46:09 +00:00
Chris Lattner
a82f131abb
Finegrainify namespacification
...
Print out the costs for functions that AREN'T inlined as well
llvm-svn: 10135
2003-11-21 21:45:31 +00:00
Chris Lattner
a29600046d
Minor cleanups and simplifications
...
llvm-svn: 10127
2003-11-21 16:52:05 +00:00
Chris Lattner
8791e26de1
* Finegrainify namespacification
...
* Implement FuncResolve/2003-11-20-BogusResolveWarning.ll
... which eliminates a large number of annoying warnings. I know misha
will miss them though!
llvm-svn: 10123
2003-11-20 21:21:31 +00:00
Chris Lattner
2af517281d
Start using the nicer terminator auto-insertion API
...
llvm-svn: 10111
2003-11-20 18:25:24 +00:00
Chris Lattner
63a0ccff44
Spew symbolic types!
...
llvm-svn: 10110
2003-11-20 18:23:14 +00:00
Chris Lattner
18e5d5228a
When spewing out warnings during function resolution, do not vomit out pages
...
and pages of non-symbolic types.
llvm-svn: 10109
2003-11-20 18:19:35 +00:00
Misha Brukman
4f7ce560d5
This file was somehow missing a top-level comment line.
...
llvm-svn: 10055
2003-11-17 19:35:17 +00:00
Chris Lattner
841dd53555
Fix PR116
...
llvm-svn: 10032
2003-11-16 21:39:27 +00:00
Chris Lattner
d76fe4ea7d
Implement feature: InstCombine/2003-11-13-ConstExprCastCall.ll
...
llvm-svn: 9981
2003-11-13 19:17:02 +00:00
Brian Gaeke
960707c335
Put all LLVM code into the llvm namespace, as per bug 109.
...
llvm-svn: 9903
2003-11-11 22:41:34 +00:00
Chris Lattner
1e6d3053f2
Reorganize code for locality, improve comments
...
llvm-svn: 9857
2003-11-10 04:42:42 +00:00
Chris Lattner
4474336166
Adjust to new critical edge interface
...
llvm-svn: 9853
2003-11-10 04:10:50 +00:00
Chris Lattner
984e11792f
Do NOT inline self recursive calls into other functions. This is causing the
...
pool allocator no end of trouble, and doesn't make a lot of sense anyway. This
does not solve the problem with mutually recursive functions, but they are much less common.
llvm-svn: 9828
2003-11-09 05:05:36 +00:00
Chris Lattner
d61abe82d3
Untypo
...
llvm-svn: 9827
2003-11-09 05:04:25 +00:00
Misha Brukman
ad03afcb34
Declare FunctionPasses as such so that they can be used in FunctionPassManager.
...
llvm-svn: 9768
2003-11-07 17:20:18 +00:00
Chris Lattner
38cd27e450
Various cleanups and efficiency improvements
...
llvm-svn: 9753
2003-11-06 19:46:29 +00:00
Chris Lattner
b0a4b49b23
Fix bug: PR93
...
llvm-svn: 9752
2003-11-06 19:18:49 +00:00
Chris Lattner
4e1b467594
Fix the problem with running cleanups in bugpoint: We were deleting arguments
...
of intrinsic functions, causing the verifier to fail.
llvm-svn: 9745
2003-11-05 21:53:41 +00:00
Chris Lattner
9e60aced2e
Split behavior into two pieces
...
llvm-svn: 9741
2003-11-05 21:43:02 +00:00
Chris Lattner
8055fb3afa
Yet more fixes for constant expr shifts
...
llvm-svn: 9739
2003-11-05 20:43:58 +00:00
Chris Lattner
ba55bd37fe
Further fixes for PR93
...
llvm-svn: 9738
2003-11-05 20:37:01 +00:00
Chris Lattner
7c94d1171a
Fix flawed logic that was breaking several SPEC benchmarks, including gzip and crafty.
...
llvm-svn: 9731
2003-11-05 17:31:36 +00:00
Chris Lattner
813ec04735
Be gcc 3.4 clean
...
llvm-svn: 9725
2003-11-05 06:12:18 +00:00
Chris Lattner
8f2f598024
Fix bug with previous implementation:
...
- // ~(c-X) == X-(c-1) == X+(-c+1)
+ // ~(c-X) == X-c-1 == X+(-c-1)
Implement: C - ~X == X + (1+C)
llvm-svn: 9715
2003-11-05 01:06:05 +00:00
Chris Lattner
e580666532
Minor cleanup, plus implement InstCombine/xor.ll:test17
...
llvm-svn: 9711
2003-11-04 23:50:51 +00:00
Chris Lattner
0f68fa6569
Implement InstCombine/xor.ll:test(15|16)
...
llvm-svn: 9708
2003-11-04 23:37:10 +00:00
John Criswell
81587e798a
Checking in Chris's suggestions:
...
Added assert() to ensure symbol table is well formed.
Added code to remember the value that was found; resolving types can change
the symbol table and invalidate the value of the iterator.
Added comments to the ResolveTypes() function (mainly for my own benefit).
Please feel free to correct the comments if they are not accurate.
llvm-svn: 9693
2003-11-04 15:22:26 +00:00
Chris Lattner
6444c37488
Implement InstCombine/cast-set.ll:test6[a]. This improves code generated for
...
a hot function in em3d
llvm-svn: 9673
2003-11-03 05:17:03 +00:00
Chris Lattner
1693079e92
Implement InstCombine/cast-set.ll: test1, test2, test7
...
llvm-svn: 9670
2003-11-03 04:25:02 +00:00
Chris Lattner
af7893203b
Fix bug with zero sized casts
...
llvm-svn: 9667
2003-11-03 01:29:41 +00:00
Chris Lattner
d4d987dd4a
Fix bug in previous checkin
...
llvm-svn: 9656
2003-11-02 06:54:48 +00:00
Chris Lattner
f4ad165e8b
Implement transmogriphication of allocation instructions
...
llvm-svn: 9654
2003-11-02 05:57:39 +00:00
Chris Lattner
7f7285bab7
Fix PR78
...
llvm-svn: 9648
2003-11-02 02:06:27 +00:00
Chris Lattner
b45d9077cb
Strip off CPR's manually, because if we don't, the inliner doesn't delete dead
...
functions. GRR
llvm-svn: 9641
2003-10-31 21:05:58 +00:00
Chris Lattner
686767f3f6
Fix bug: 2003-10-29-CallSiteResolve.ll & PR70
...
llvm-svn: 9600
2003-10-30 00:46:41 +00:00
Chris Lattner
3420137e63
Refactor code, initial implementation of -insert-block-profiling pass
...
llvm-svn: 9593
2003-10-29 21:24:22 +00:00
Chris Lattner
bcb0f4bf2e
Fix PR66 & ScalarRepl/2003-10-29-ArrayProblem.ll
...
llvm-svn: 9585
2003-10-29 17:55:44 +00:00
Chris Lattner
e5f15cdc5f
Fix bug: ConstantMerge/2003-10-28-MergeExternalConstants.ll & PR64
...
llvm-svn: 9579
2003-10-29 06:01:26 +00:00
Chris Lattner
3e5ff2568c
Check in statistifying patch for Bill
...
llvm-svn: 9572
2003-10-28 23:14:59 +00:00
Chris Lattner
183fa7ceb3
Pass in argc & argv
...
llvm-svn: 9563
2003-10-28 22:42:24 +00:00
Chris Lattner
c8ba0672ac
Initial checkin of profiling instrumentation pass. So far, despite the
...
file name, we only support function profiling. This will be fixed in the
near future.
llvm-svn: 9547
2003-10-28 18:59:04 +00:00
Chris Lattner
233989316c
Eliminate using declarations
...
llvm-svn: 9543
2003-10-27 21:44:09 +00:00
Chris Lattner
5e004e8ce0
Propagating constants to arguments can make other arguments constant. For now
...
do something dumb, and inefficient, but more complete.
llvm-svn: 9542
2003-10-27 21:09:00 +00:00
Chris Lattner
b727fb2663
Fix test: Linker/2003-10-27-LinkOncePromote.ll
...
Fix PR58
llvm-svn: 9530
2003-10-27 16:39:39 +00:00
Chris Lattner
d9f4ffdf5e
Get the list of PHI node values before the basic block is split. Also, add
...
PHI node entries for unwind instructions just like for call instructions which
became invokes! This fixes PR57, tested by
Inline/2003-10-26-InlineInvokeExceptionDestPhi.ll
llvm-svn: 9526
2003-10-27 05:33:09 +00:00
Chris Lattner
12b78db685
We might as well strip off any CPRs before propagation
...
llvm-svn: 9437
2003-10-23 18:49:23 +00:00
Chris Lattner
05c71fb3e6
* We were forgetting to pass varargs arguments through a call
...
* Add a work around for bug PR56, gross but necessary for now.
llvm-svn: 9428
2003-10-23 17:44:53 +00:00
Chris Lattner
f516c698ff
Check in initial version of ipcp
...
llvm-svn: 9423
2003-10-23 16:52:27 +00:00
Chris Lattner
0658cc20bd
Make this pass substantially stronger by having it delete dead return values
...
as well as arguments. Now it can delete arguments and return values which are
only passed into other arguments or are returned, if they are dead. This causes
it to delete several hundred extra args/retvals from the C++ hello world program,
shrinking it by about 2K.
llvm-svn: 9398
2003-10-23 03:48:17 +00:00
Chris Lattner
9e8fe49c37
This important patch fixes two warnings in the linker which can occur from linking
...
valid pieces of code
llvm-svn: 9390
2003-10-22 23:03:38 +00:00
Chris Lattner
6d3425e87a
Update the 'used' flag correctly
...
llvm-svn: 9366
2003-10-22 04:43:18 +00:00
Chris Lattner
12b3593dea
Loop over the module, not the symbol table. This makes the code handle
...
unused external functions again
llvm-svn: 9365
2003-10-22 04:42:20 +00:00
Chris Lattner
4cd99ffa57
Implement FunctionResolve/2003-10-21-GlobalResolveHack.ll
...
llvm-svn: 9363
2003-10-22 03:35:34 +00:00
Chris Lattner
af2c00bf14
Fix bug: FunctionResolve/2003-10-21-GlobalTypeDifference.ll
...
llvm-svn: 9359
2003-10-21 23:17:56 +00:00
Chris Lattner
4f2581f828
Fix bug: Linker/2003-10-21-ConflictingTypesTolerance.ll
...
llvm-svn: 9357
2003-10-21 22:46:38 +00:00
Chris Lattner
9bc22b7439
Fix message to make more sense and confuse Chris less
...
llvm-svn: 9354
2003-10-21 21:52:20 +00:00
John Criswell
29265fe981
Added LLVM copyright header.
...
llvm-svn: 9321
2003-10-21 15:17:13 +00:00
John Criswell
4436c49787
Added LLVM copyright notice to Makefiles.
...
llvm-svn: 9312
2003-10-20 22:26:57 +00:00
John Criswell
482202a601
Added LLVM project notice to the top of every C++ source file.
...
Header files will be on the way.
llvm-svn: 9298
2003-10-20 19:43:21 +00:00
Chris Lattner
2d9c117e21
Reorder for minor efficiency gain
...
llvm-svn: 9285
2003-10-20 05:54:26 +00:00
Chris Lattner
b94550e537
Change the Opcode enum for PHI nodes from "Instruction::PHINode" to "Instruction::PHI" to be more consistent with the other instructions.
...
llvm-svn: 9269
2003-10-19 21:34:28 +00:00
Chris Lattner
b32f5748b7
Fix PR#50
...
llvm-svn: 9227
2003-10-18 06:14:59 +00:00
Chris Lattner
f0fc9be634
ADd support for the new varargs instructions
...
llvm-svn: 9225
2003-10-18 05:56:52 +00:00
Chris Lattner
1facf89eaf
Do not crash on empty structures
...
llvm-svn: 9195
2003-10-17 18:03:54 +00:00
Chris Lattner
068ad84038
Add support for 'weak' linkage.
...
llvm-svn: 9171
2003-10-16 18:29:00 +00:00
Chris Lattner
50b6858e2e
This code does not require random access use_lists
...
llvm-svn: 9156
2003-10-16 16:49:12 +00:00
Chris Lattner
5dbb244edb
Eliminate using declaration
...
Rewrite code to work with use_lists what are either random access or bidirectional
llvm-svn: 9155
2003-10-16 16:48:53 +00:00
Chris Lattner
f95d9b99b3
Decrease usage of use_size()
...
llvm-svn: 9135
2003-10-15 16:48:29 +00:00
Chris Lattner
f77a856f3b
Cleanup
...
llvm-svn: 9133
2003-10-15 16:42:21 +00:00
Chris Lattner
b4778c73c9
Do not move variable sized allocations to the top of the caller, which might
...
break dominance relationships, and is otherwise bad. This fixes bug:
Inline/2003-10-13-AllocaDominanceProblem.ll. This also fixes miscompilation
of 3 176.gcc source files (reload1.c, global.c, flow.c)
llvm-svn: 9109
2003-10-14 01:11:07 +00:00
Chris Lattner
612cafef0a
Whoops, we inserted into the wrong set. What's up with the dead set anyway?
...
llvm-svn: 9094
2003-10-13 16:49:21 +00:00
Chris Lattner
951e7329e8
Use external df iterators to avoid revisiting blocks in functions with
...
multiple setjmp calls.
llvm-svn: 9093
2003-10-13 16:44:50 +00:00
Chris Lattner
178957028b
Wrap code at 80 columns
...
llvm-svn: 9073
2003-10-13 05:04:27 +00:00
Chris Lattner
44d2c3514a
Regularize header file comments
...
llvm-svn: 9071
2003-10-13 03:32:08 +00:00
Chris Lattner
7cce14bfbf
Regularize header file comment, eliminate using's
...
llvm-svn: 9069
2003-10-13 03:30:47 +00:00
Chris Lattner
f7a60cd9fa
Minor cleanups
...
llvm-svn: 9067
2003-10-13 01:02:33 +00:00
Chris Lattner
56b8526083
Checkin an improvement contributed by Bill:
...
Only transform call sites in a setjmp'ing function which are reachable from
the setjmp. If the call dominates the setjmp (for example), the called
function cannot longjmp to the setjmp.
This dramatically reduces the number of invoke instructions created in some
large testcases.
llvm-svn: 9066
2003-10-13 00:57:16 +00:00
Chris Lattner
c4622a6955
Add support to the loop canonicalization pass to make it transform loops to
...
have a SINGLE backedge. This is useful to, for example, the -indvars pass.
This implements testcase LoopSimplify/single-backedge.ll and closes PR#34
llvm-svn: 9065
2003-10-13 00:37:13 +00:00
Chris Lattner
72272a70b8
Rename loop preheaders pass to loop simplify
...
llvm-svn: 9061
2003-10-12 21:52:28 +00:00
Chris Lattner
55d4788397
File is renamed to LoopSimplify.cpp
...
llvm-svn: 9059
2003-10-12 21:44:18 +00:00
Chris Lattner
154e4d5dea
First step in renaming the preheaders pass to loopsimplify
...
llvm-svn: 9058
2003-10-12 21:43:28 +00:00
Chris Lattner
9703c02ce4
The preheader insertion pass only depends on the CFG. Mark it as such, which
...
allows GCCAS to only run it once.
llvm-svn: 9056
2003-10-12 19:33:10 +00:00
Brian Gaeke
b8a4ed6543
Include <cstdio> instead of <stdio.h>.
...
llvm-svn: 9032
2003-10-10 18:46:52 +00:00
Brian Gaeke
cc31fddf13
Don't include Config/stdio.h or <stdio.h>.
...
llvm-svn: 9031
2003-10-10 18:46:29 +00:00
Misha Brukman
8b2bd4ed47
Fix spelling.
...
llvm-svn: 9027
2003-10-10 17:57:28 +00:00
Misha Brukman
b3acb4027e
Fixing the spelling of this filename.
...
llvm-svn: 9009
2003-10-10 16:57:31 +00:00
Chris Lattner
35e56e7372
Update comment
...
llvm-svn: 8965
2003-10-08 16:56:11 +00:00
Chris Lattner
0bbbe5d4c8
Use a set to keep track of which edges have been noticed as executable already
...
to avoid reprocessing PHI nodes needlessly. This speeds up the big bad PHI
testcase 43%: from 104.9826 to 73.5157s
llvm-svn: 8964
2003-10-08 16:55:34 +00:00
Chris Lattner
7324f7cd03
Minor fixes here and there
...
llvm-svn: 8963
2003-10-08 16:21:03 +00:00
Chris Lattner
71ac22ffb5
Avoid building data structures we don't really need. This improves the runtime
...
of a test that Bill Wendling sent me from 228.5s to 105s. Obviously there is
more improvement to be had, but this is a nice speedup which should be "felt"
by many programs.
llvm-svn: 8962
2003-10-08 15:47:41 +00:00
Chris Lattner
950fc785ae
whoops, don't accidentally lose variable names
...
llvm-svn: 8955
2003-10-07 22:58:41 +00:00
Chris Lattner
75b4d1deec
Fix bug: InstCombine/cast.ll:test11 / PR#7
...
llvm-svn: 8954
2003-10-07 22:54:13 +00:00
Chris Lattner
aec3d948cf
Refactor code a bit
...
llvm-svn: 8952
2003-10-07 22:32:43 +00:00
Chris Lattner
f8492537eb
Fix bugzilla bug #5
...
llvm-svn: 8930
2003-10-07 19:33:31 +00:00
Chris Lattner
ed922162e1
Bill contributed this major rewrite of the -lowerswitch pass to make it generate
...
logarithmic conditional branch sequences instead of linear sequences. Thanks Bill!
llvm-svn: 8928
2003-10-07 18:46:23 +00:00
Chris Lattner
800aaaf207
Fix bug in previous checkin
...
llvm-svn: 8922
2003-10-07 15:17:02 +00:00
Chris Lattner
e8ed4ef039
Minor speedups for the instcombine pass
...
llvm-svn: 8894
2003-10-06 17:11:01 +00:00
Chris Lattner
6dc0ae2d18
Speed up the predicate used to decide when to inline by caching the size
...
of callees between executions.
On eon, in release mode, this changes the inliner from taking 11.5712s
to taking 2.2066s. In debug mode, it went from taking 14.4148s to
taking 7.0745s. In release mode, this is a 24.7% speedup of gccas, in
debug mode, it's a total speedup of 11.7%.
This also makes it slightly more aggressive. This could be because we
are not judging the size of the functions quite as accurately as before.
When we start looking at the performance of the generated code, this can
be investigated further.
llvm-svn: 8893
2003-10-06 15:52:43 +00:00
Chris Lattner
6aa34b0d0b
Avoid doing pointless work. Amazingly, this makes us go faster.
...
Running the inliner on 252.eon used to take 48.4763s, now it takes 14.4148s.
In release mode, it went from taking 25.8741s to taking 11.5712s.
This also fixes a FIXME.
llvm-svn: 8890
2003-10-06 15:23:43 +00:00
Chris Lattner
c30f22f57c
This changes the PromoteMemToReg function to create "pruned" SSA form, not
...
"minimal" SSA form (in other words, it doesn't insert dead PHIs). This
speeds up the mem2reg pass very significantly because it doesn't have to
do a lot of frivolous work in many common cases.
In the 252.eon function I have been playing with, this doesn't even insert
the 120 PHI nodes that it used to which were trivially dead (in the process
of promoting 356 alloca instructions overall). This speeds up the mem2reg
pass from 1.2459s to 0.1284s. More significantly, the DCE pass used to take
2.4138s to remove the 120 dead PHI nodes that mem2reg constructed, now it
takes 0.0134s (which is the time to scan the function and decide that there
is nothing dead). So overall, on this one function, we speed things up a
total of 3.5179s, which is a 24.8x speedup! :)
This change is tested by the Mem2Reg/2003-10-05-DeadPHIInsertion.ll test,
which now passes.
llvm-svn: 8884
2003-10-05 22:19:20 +00:00
Chris Lattner
a906bacfdd
Change the interface to PromoteMemToReg to also take a DominatorTree
...
llvm-svn: 8883
2003-10-05 21:20:13 +00:00
Chris Lattner
8047152977
Speed up the mem2reg transform for allocas which are only read/written in a single
...
basic block. This is amazingly common in code generated by the C/C++ front-ends.
This change makes it not have to insert ANY phi nodes, whereas before it would insert
a ton of dead ones which DCE would have to clean up.
Thus, this fix improves compile-time performance of these trivial allocas in two ways:
1. It doesn't have to do the walking and book-keeping for renaming
2. It does not insert dead phi nodes for them which would have to
subsequently be cleaned up.
On my favorite testcase from 252.eon, this special case handles 305 out of
356 promoted allocas in the function. It speeds up the mem2reg pass from 7.5256s
to 1.2505s. It inserts 677 fewer dead PHI nodes, which speeds up a subsequent
-dce pass from 18.7524s to 2.4806s.
There are still 120 trivially dead PHI nodes being inserted for variables used
in multiple basic blocks, but they are not handled by this patch.
llvm-svn: 8881
2003-10-05 20:54:03 +00:00
Chris Lattner
a43b8f4b2f
Initial checkin of the LLVM->LLVM transform to support code generators which
...
do not support stack unwinding yet
llvm-svn: 8869
2003-10-05 19:14:42 +00:00
Chris Lattner
5ed281d7d7
simplify-cfg is really a function pass
...
llvm-svn: 8868
2003-10-05 19:14:16 +00:00
Chris Lattner
a5721d3d03
The first PHI node may be null, scan for the first non-null one
...
llvm-svn: 8865
2003-10-05 05:34:39 +00:00
Chris Lattner
203bc011e5
The VersionNumbers vector is only used during PHI placement. Turn it into an argument, allowing us to get rid of the vector.
...
llvm-svn: 8864
2003-10-05 04:33:22 +00:00
Chris Lattner
7d9692df22
* Update file header comment
...
*** Revamp the code which handled unreachable code in the function. Now the
code is much more efficient for high-degree basic blocks, such as those
that occur in the 252.eon SPEC benchmark.
For the interested, the time to promote a SINGLE alloca in _ZN7mrScene4ReadERSi
function used to be > 3.5s. Now it is < .075s. The function has a LOT of
allocas in it, so it appeared to be infinite looping, this should make it much
nicer. :)
llvm-svn: 8863
2003-10-05 04:26:39 +00:00
Chris Lattner
db1f81bcb5
Simplify the loop a bit
...
llvm-svn: 8862
2003-10-05 03:45:44 +00:00
Chris Lattner
2093012a03
There is no need for separate WriteSets and PhiNodeBlocks lists. It is just a
...
work-list of value definitions. This allows elimination of the explicit
'iterative' step of the algorithm, and also reuses temporary memory better.
llvm-svn: 8861
2003-10-05 03:39:10 +00:00
Chris Lattner
9408b1e8b9
The PhiNodes 2D vector is only used during PHI node placement. It doesn't
...
need to be an instance variable!
llvm-svn: 8860
2003-10-05 03:26:25 +00:00
Chris Lattner
417bc173ee
* Document instance vars better
...
* Fuse two parallel loops
* Use a more specific type for AllocaLookup
llvm-svn: 8859
2003-10-05 03:16:07 +00:00
Chris Lattner
c360f135be
Two small cleanups/speedups:
...
* Do not insert a new entry into NewPhiNodes during the rename pass if there are no PHIs in a block.
* Do not compute WriteSets in parallel
llvm-svn: 8858
2003-10-05 02:37:36 +00:00
Chris Lattner
c3d57b5923
* Minor cleanups
...
* Eliminate the KillList instance variable, instead, just delete loads and
stores as they are "renamed", and delete allocas when they are done
* Make the 'visited' set an instance variable to avoid passing it on the stack.
llvm-svn: 8857
2003-10-05 01:52:53 +00:00
Chris Lattner
b9cde76e60
Implement InstCombine/add.ll:test17 & 18
...
llvm-svn: 8817
2003-10-02 15:11:26 +00:00
Chris Lattner
e317856e0e
Use global *_iterator
...
llvm-svn: 8703
2003-09-24 22:07:33 +00:00
Chris Lattner
a940095ae2
Do not use BasicBlock::*_iterator, just use *_iterator itself.
...
Isn't updating copy and pasted code a joy
llvm-svn: 8702
2003-09-24 22:06:25 +00:00
Chris Lattner
295b907cee
Fix bug: IndVarsSimplify/2003-09-23-NotAtTop.ll
...
llvm-svn: 8689
2003-09-23 20:26:48 +00:00
Chris Lattner
50ac360a34
Fix bugs in the last change
...
llvm-svn: 8667
2003-09-22 23:30:59 +00:00
Chris Lattner
d6002b8e15
Fix bug: Inline/2003-09-22-PHINodesInNormalInvokeDest.ll
...
llvm-svn: 8666
2003-09-22 22:35:39 +00:00
Chris Lattner
0178d262e6
Fix bug: Inline/2003-09-22-PHINodesInExceptionDest.ll
...
... by making sure to update PHI nodes to take into consideration the
extra edges we get if we inline a call instruction through an invoke.
llvm-svn: 8664
2003-09-22 21:59:27 +00:00
Misha Brukman
e051f86a3d
Credits now go into the top-level CREDITS.TXT
...
llvm-svn: 8662
2003-09-22 21:57:56 +00:00
Misha Brukman
4ce9dae5b1
Credits are now in top-level CREDITS.TXT
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llvm-svn: 8661
2003-09-22 21:57:15 +00:00
Chris Lattner
2caaaba3e9
Squelch warning
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llvm-svn: 8659
2003-09-22 20:33:34 +00:00
Chris Lattner
c8dfbbbf25
Global variables with APPENDING linkage are very important to keep around!
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llvm-svn: 8632
2003-09-20 19:00:50 +00:00
Chris Lattner
5dac64f629
Rename Function::getEntryNode -> getEntryBlock
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llvm-svn: 8625
2003-09-20 14:39:18 +00:00
Chris Lattner
4413e4362c
Minor cleanups, no functional changes
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Rename Function::getEntryNode -> getEntryBlock
llvm-svn: 8623
2003-09-20 14:36:23 +00:00
Chris Lattner
b6ac976247
Fix a really obvious huge gaping bug, add a comment
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llvm-svn: 8620
2003-09-20 05:24:00 +00:00
Chris Lattner
0016085602
Expose the TCE pass
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llvm-svn: 8619
2003-09-20 05:14:13 +00:00
Chris Lattner
2e9014cb1b
New transformation: tail recursion elimination
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llvm-svn: 8618
2003-09-20 05:03:31 +00:00
Chris Lattner
2da29177ba
Implement InstCombine/and.ll:test(15|16)
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llvm-svn: 8607
2003-09-19 19:05:02 +00:00
Chris Lattner
ba1cb38c06
pull a large nested conditional out into its own function
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llvm-svn: 8605
2003-09-19 17:17:26 +00:00
Chris Lattner
dbba189f15
Implement InstCombine/add.ll:test(15|16)
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llvm-svn: 8604
2003-09-19 15:35:42 +00:00
Chris Lattner
39f398b50d
Fix bug raising allocations whose call sites were invoke instructions.
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Thanks to brg for tracking down the problem so precisely!
llvm-svn: 8568
2003-09-16 19:42:21 +00:00
Chris Lattner
ec6d7a6df3
This is effectively a complete rewrite of the globaldce algorithm, resulting
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in it being both shorter and more effective. It no longer depends on the
callgraph, so one FIXME has been fixed.
Additionally, this pass was not able to delete recursive (but dead) functions
if they were pointed to by global variables which were also dead. In fact
this pass had a lot of problems deleting functions which were only pointed
to by dead globals and other stuff.
Fixing this means that the entire EH library should be stripped away now from
programs that don't use sjlj or exceptions.
llvm-svn: 8567
2003-09-16 19:27:31 +00:00
Chris Lattner
40b6621b50
Minor cleanups, give credit, remove code that should not be necessary, and
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was a "major hack" :)
llvm-svn: 8524
2003-09-15 05:43:05 +00:00
Chris Lattner
6f99eb56c3
Initial checkin of the Setjmp/Longjmp lowering/transformation pass,
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contributed by the masterful Bill Wendling!
llvm-svn: 8520
2003-09-15 04:56:27 +00:00
Chris Lattner
da3585335b
Ugh, a bug fix needed because of the bug in the CallGraph code
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llvm-svn: 8519
2003-09-15 04:52:00 +00:00
Chris Lattner
5a6fa29eb3
Fix bug: PruneEH/2003-09-14-ExternalCall.llx
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llvm-svn: 8516
2003-09-15 02:22:50 +00:00
Chris Lattner
7f89ea75e1
Fix bug: Inline/2003-09-14-InlineValue.ll
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llvm-svn: 8514
2003-09-15 02:10:16 +00:00
Chris Lattner
099ec07a95
Make sure to cannonicalize loops before running indvar simplify
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llvm-svn: 8502
2003-09-12 16:45:01 +00:00
Chris Lattner
7fdde92b1f
Do not return success after checking only the FIRST USE of a gep instruction.
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Instead, check all uses.
This fixes bug: ScalarRepl/2003-09-12-IncorrectPromote.ll
This also fixes the miscompilation of Ptrdist/bc
llvm-svn: 8493
2003-09-12 16:02:12 +00:00
Chris Lattner
9a95f2a944
Minor optimization efficiency improvement:
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- Run mem2reg promotion first
- Only rerun passes if the previous thing changed something
llvm-svn: 8490
2003-09-12 15:36:03 +00:00
Chris Lattner
cce81be1e1
Simplify code
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Implement InstCombine/mul.ll:test9
llvm-svn: 8488
2003-09-11 22:24:54 +00:00
Misha Brukman
217ca0bcb9
Apostrophes are only used for possession and quoting.
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llvm-svn: 8473
2003-09-11 16:58:31 +00:00
Chris Lattner
5d8a12e094
Integrate functionality of the mem2reg pass directly into this pass to make
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the combination more effective
llvm-svn: 8471
2003-09-11 16:45:55 +00:00
Chris Lattner
bb9d03b9c0
Renamed DominatorTree::Node::getNode() -> getBlock()
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llvm-svn: 8469
2003-09-11 16:26:13 +00:00
Misha Brukman
9b8d339f6e
Spell `definite' correctly.
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llvm-svn: 8467
2003-09-11 15:32:37 +00:00
Misha Brukman
250f976eb3
Spell `definitely' correctly.
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llvm-svn: 8466
2003-09-11 15:31:17 +00:00
Chris Lattner
2158052ac4
Unwind instructions are intrinsically alive, just like returns
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llvm-svn: 8462
2003-09-10 20:38:14 +00:00
Chris Lattner
10a032abf1
Update for new UnifyFunction... API
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Remove using decl
llvm-svn: 8458
2003-09-10 20:35:33 +00:00
Chris Lattner
3b30e93e27
Remove #include
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llvm-svn: 8457
2003-09-10 20:35:21 +00:00
Chris Lattner
f941396cce
Expand the pass to unify all of the unwind blocks as well
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llvm-svn: 8456
2003-09-10 20:34:51 +00:00
Chris Lattner
216c7b8aed
Fix spell-o's
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llvm-svn: 8431
2003-09-10 05:29:43 +00:00
Chris Lattner
4e621cd861
Spelling fixes. I think that "cannonical" is ok, but "canonical" appears to
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be the canonical form for the word
llvm-svn: 8430
2003-09-10 05:24:46 +00:00
Chris Lattner
36257f049e
Fix up file header
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llvm-svn: 8428
2003-09-10 05:10:34 +00:00
Misha Brukman
4ace48e0ca
Spell `occurrence' correctly.
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llvm-svn: 8425
2003-09-09 21:54:45 +00:00
Chris Lattner
04ecefe232
Eliminate support for the llvm.unwind intrinisic, using the Unwind instruction instead
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llvm-svn: 8411
2003-09-08 19:44:26 +00:00
Chris Lattner
caa12cfa75
Should invokify is always true
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llvm-svn: 8409
2003-09-08 19:00:30 +00:00
Chris Lattner
9c58cf6d03
Add support for the unwind instruction
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llvm-svn: 8408
2003-09-08 18:54:55 +00:00
Chris Lattner
01a8391236
Do not hoist volatile loads
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llvm-svn: 8399
2003-09-08 18:17:14 +00:00
Brian Gaeke
6181cac0dc
Correct comments
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Don't include InstLoops.h
Don't export factory functions for these passes
llvm-svn: 8373
2003-09-05 19:43:19 +00:00
Chris Lattner
f1f7f2c477
Prototype for creator function got moved
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llvm-svn: 8315
2003-09-01 20:45:33 +00:00
Chris Lattner
ffc2d16f21
Final cleanup: remove dead code
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llvm-svn: 8291
2003-09-01 18:01:36 +00:00
Chris Lattner
267f20475b
Not only is this a lot smaller, it actually works if there is already a
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function with the right name in the module.
llvm-svn: 8290
2003-09-01 16:53:46 +00:00
Chris Lattner
5b8addab9b
Dead files
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llvm-svn: 8289
2003-09-01 16:49:57 +00:00
Chris Lattner
d4a1af7d49
If "These should be used only by the auto-parallelization pass", we might as
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well put them INTO the auto-par pass.
llvm-svn: 8288
2003-09-01 16:49:38 +00:00
Chris Lattner
685dc1ea98
Moved all of the cilkifier stuff into lib/Transforms/IPO, as it really is not
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support stuff.
llvm-svn: 8287
2003-09-01 16:45:30 +00:00
Chris Lattner
6c6ba71cea
Minor cleanups
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Do not #include Parallelize.h, it's just a subset of Cilkifier.h
llvm-svn: 8285
2003-09-01 16:42:16 +00:00
Chris Lattner
8ef1b88aef
Change the RaiseAllocations pass to be a Pass instead of a BasicBlock pass.
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This makes it more efficient: it doesn't have to scan the whole program, so
it performs work proportional to the number of malloc/free calls in the
program, not the size of the program.
llvm-svn: 8280
2003-09-01 03:14:56 +00:00
Chris Lattner
1c884e18e1
Fix bug: TailDuplicate/2003-08-31-UnreachableBlocks.ll
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llvm-svn: 8276
2003-08-31 21:17:44 +00:00
Chris Lattner
d075cc282b
Heavily refactor code:
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* Separate the policy decisions into a derived class [InlineSimple]
* Move the inlining mechanics into a base class [Inliner]
* Change the inliner to be an SCCPass, making it more structured and
eventually pipelinable with other SCC passes
llvm-svn: 8257
2003-08-31 19:10:30 +00:00
Chris Lattner
75444c751f
Add accessor function
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llvm-svn: 8253
2003-08-31 16:30:07 +00:00
Chris Lattner
0a3f8d5dcd
Initial checkin of the -prune-eh pass, a very simple exception handling removal pass
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llvm-svn: 8250
2003-08-31 02:47:32 +00:00
Chris Lattner
c817458b66
ScalarRepl does not modify the CFG. Say so!
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llvm-svn: 8243
2003-08-31 00:45:13 +00:00
Chris Lattner
2887328770
Use new interface, simplifies code
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llvm-svn: 8242
2003-08-31 00:22:27 +00:00
Chris Lattner
25bc3f86de
Use the new interface, simplifies code
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NOTE that these two files are _BUGGY_ and need to be fixed, just not by me :)
llvm-svn: 8241
2003-08-31 00:21:59 +00:00
Chris Lattner
ea27751e4b
Use the new interface, simplifies code
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Delete a bunch of commented out code
llvm-svn: 8240
2003-08-31 00:21:05 +00:00
Chris Lattner
8e6ac1bf10
Use the new interface, simplifies code
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llvm-svn: 8239
2003-08-31 00:20:36 +00:00
Chris Lattner
66cc0141b0
Fix bug where we considered function types equivalent even if they had differing numbers of arguments
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llvm-svn: 8178
2003-08-28 16:42:50 +00:00
Chris Lattner
df741d62de
Fix bug: SCCP/2003-08-26-InvokeHandling.ll
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llvm-svn: 8152
2003-08-27 01:08:35 +00:00
Chris Lattner
be8d6816d0
Remove special casing
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llvm-svn: 8144
2003-08-25 22:34:15 +00:00
Chris Lattner
4f05103ad2
Fix bug: Linker/2003-08-23-GlobalVarLinking.ll
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llvm-svn: 8130
2003-08-24 19:30:20 +00:00
Chris Lattner
3ba0f88a0a
Implement: Linker/2003-08-24-InheritPtrSize.ll
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llvm-svn: 8129
2003-08-24 19:26:42 +00:00
Chris Lattner
3f5823f131
Implement SimplifyCFG/InvokeEliminate.ll
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llvm-svn: 8126
2003-08-24 18:36:16 +00:00
Chris Lattner
0f98032fd8
rethrow is really the language independent primitive here. "throw" can be written
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in terms of it and llvm.exc.setcurrent.
Rework the intrinsics.
llvm-svn: 8111
2003-08-24 12:24:11 +00:00
Chris Lattner
d367d0553e
Inline invoke instructions as well as call instructions
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llvm-svn: 8107
2003-08-24 06:59:28 +00:00
Chris Lattner
0cc265e6bf
*** Implement inlining of Invoke instructions!
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llvm-svn: 8106
2003-08-24 06:59:16 +00:00
Chris Lattner
9c5bfd0f80
Big diff for a small change: delete inlined functions if all callees have
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inlined the function.
Implements: Inline/inline_dce.ll
llvm-svn: 8101
2003-08-24 05:03:14 +00:00
Chris Lattner
fc3fe5cd75
Implement: Inline/cfg_preserve_test.ll
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llvm-svn: 8099
2003-08-24 04:06:56 +00:00