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Author SHA1 Message Date
Evan Cheng
1b088f3310 Don't forget to initialize SymbolSearchingDisabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52414 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-17 16:49:02 +00:00
Duncan Sands
34b176a181 Fix typo that changed the logic to something wrong. 
Spotted by Nick Lewycky.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52411 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-17 15:55:30 +00:00
Duncan Sands
69b01e92a2 Split type expansion into ExpandInteger and ExpandFloat 
rather than bundling them together.  Rename FloatToInt
to PromoteFloat (better, if not perfect).  Reorganize
files by types rather than by operations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52408 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-17 14:27:01 +00:00
Matthijs Kooijman
de9256ad2e Forgot to commit the ValueTracking header file along with r52396. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52401 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-17 13:54:33 +00:00
Matthijs Kooijman
2fbabf6e6d Learn IPConstProp to propagate arguments that are directly returned. Strictly 
speaking these are not constant values. However, when a function always returns
one of its arguments, then from the point of view of each caller the return
value is constant (or at least a known value) and can be replaced.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52397 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-17 12:20:24 +00:00
Matthijs Kooijman
906e423724 Learn IPConstProp to look at individual return values and propagate them 
individually.

Also learn IPConstProp how returning first class aggregates work, in addition
to old style multiple return instructions.

Modify the return-constants testscase to confirm this behaviour.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52396 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-17 12:02:52 +00:00
Matthijs Kooijman
74fc4d9686 80 column fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52391 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-17 08:26:32 +00:00
Matthijs Kooijman
3faf9df08f Use a SmallVector instead of an array, since auto_ptr doesn't handle arrays 
properly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52390 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-17 08:24:37 +00:00
Chris Lattner
ead0d88ad7 add a new -enable-value-prop flag for llcbeta, that enables propagation 
of value info (sign/zero ext info) from one MBB to another.  This doesn't
handle much right now because of two limitations:

1) only handles zext/sext, not random bit propagation (no assert exists 
   for this)
2) doesn't handle phis.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52383 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-17 06:09:18 +00:00
Duncan Sands
a47c6c3703 Fix spelling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52381 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-17 03:24:13 +00:00
Evan Cheng
851bc04533 Rather than avoiding to wrap ISD::DECLARE GV operand in X86ISD::Wrapper, simply handle it at dagisel time with x86 specific isel code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52377 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-17 02:01:22 +00:00
Chris Lattner
fc196f9ee9 Add a missing ~ (dtor became ctor) which caused crashes on a bunch of stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52374 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 23:06:51 +00:00
Evan Cheng
c3de802ad9 Do not issue identity copies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52373 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 22:52:53 +00:00
Dan Gohman
9b93dd1f1a Refine the change in r52258 for avoiding use-before-def conditions 
when changing the stride of a comparison so that it's slightly
more precise, by having it scan the instruction list to determine
if there is a use of the condition after the point where the
condition will be inserted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52371 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 22:34:15 +00:00
Chris Lattner
d34ff14358 switch TypeHasCycleThroughItself from using an std::set to using a SmallPtrSet, 
this speeds up the linking testcase in PR1860 by 44% (.379 -> 0.263)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52365 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 21:20:58 +00:00
Chris Lattner
a4477f9b31 stop making PATypeHolder's so crazily. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52364 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 21:17:12 +00:00
Evan Cheng
4e444436f2 Horizontal-add instructions are not commutative. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52363 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 21:16:24 +00:00
Evan Cheng
72b7b098c7 Switch over to SetVector to ensure same order of iterations do not vary across runs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52361 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 21:08:17 +00:00
Gabor Greif
e98fc279e2 Move some documentation from the header file into ProgrammersManual. About to improve. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52360 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 21:06:12 +00:00
Chris Lattner
62a81a1eba use a real associative container for type association instead of using 
a vector with a linear search.  This speeds up the linking testcase 
in PR1860 from 0.965s to 0.385s on my system.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52357 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 21:00:18 +00:00
Evan Cheng
6bd9567a6a - Add "Commutative" property to intrinsics. This allows tblgen to generate the commuted variants for dagisel matching code. 
- Mark lots of X86 intrinsics as "Commutative" to allow load folding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52353 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 20:29:38 +00:00
Evan Cheng
35b9a7790e mpsadbw is commutable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52352 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 20:25:59 +00:00
Chris Lattner
56539659eb bail out sooner if we have two concrete but different types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52351 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 20:03:01 +00:00
Chris Lattner
9ddf2c898f simplify some code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52350 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 19:55:40 +00:00
Chris Lattner
849dcd928a Apply a patch from Nathan Keynes, which speeds up llvm-link on 
the testcases in PR1860 from taking more than 1 hour (when I killed it)
to taking 1s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52347 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 19:48:08 +00:00
Owen Anderson
31ec841be1 Remove special case handling of empty MBBs now that we assign indices to them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52345 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 19:32:40 +00:00
Chris Lattner
f6f4f7a149 handle vectors. Any integers that got here would necessarily be different already. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52341 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 18:27:53 +00:00
Chris Lattner
bc1c82a0f7 Simplify ResolveTypes by pulling the null case out into the one 
client that cares and simplifying its control flow.

Remove the DestST argument to ResolveTypes and RecursiveResolveTypes*
which are dead now.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52340 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 18:19:05 +00:00
Evan Cheng
69d5053f9c Iterating over SmallPtrSet is not deterministic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52339 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 18:17:09 +00:00
Chris Lattner
371ca83d8b simplify RecursiveResolveTypes and ResolveTypes by pulling the naming out of 
ResolveTypes into the one place that needs it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52338 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 18:11:40 +00:00
Chris Lattner
e846db6675 Add a new flag that disables symbol lookup with dlsym when set. This allows 
a JIT client to completely control symbol lookup with the LazyFunctionCreator
interface.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52335 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 17:44:14 +00:00
Chris Lattner
16228c08b4 Add support for icache invalidation on non-darwin ppc systems. 
Patch by Gary Benson!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52332 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 17:04:06 +00:00
Owen Anderson
1fbb4545d4 Re-enable empty block indexing by default, since it doesn't seem to have any 
impact on code quality or compile time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52329 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 16:58:24 +00:00
Matthijs Kooijman
0a9aaf46be Make BuildSubAggregate use FindInsertedElement again to prevent it from 
inserting extractvalues. In particular, this prevents the insertion of
extractvalues that can't be folded away later. Also add an example of when this
stuff is needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52328 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 14:13:46 +00:00
Matthijs Kooijman
9772891219 Make the InsertBefore argument to FindInsertedValue optional, so you can find an inserted value without modifying the code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52319 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 13:28:31 +00:00
Matthijs Kooijman
0a7413dad8 Pass around Instruction* instead of Instruction& in FindInsertedValue and friends. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52318 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 13:13:08 +00:00
Matthijs Kooijman
d47e6aeb93 Make testcase check for extractvalue instead of extractelement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52317 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 13:03:44 +00:00
Matthijs Kooijman
710eb236e6 80 column fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52316 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 12:57:37 +00:00
Matthijs Kooijman
b23d5adbc8 Move FindScalarValue from InstructionCombining.cpp to ValueTracking.cpp. While 
I'm at it, rename it to FindInsertedValue.

The only functional change is that newly created instructions are no longer
added to instcombine's worklist, but that is not really necessary anyway (and
I'll commit some improvements next that will completely remove the need).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52315 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 12:48:21 +00:00
Matthijs Kooijman
cdbada613e Store the result of multiple identical run lines in a temporary file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52314 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 12:21:25 +00:00
Matthijs Kooijman
069f42a058 Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52313 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 12:20:05 +00:00
Argyrios Kyrtzidis
4bd3225088 Minor comment fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52312 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 10:14:09 +00:00
Matthijs Kooijman
d38a89287d Fix PR numbers, I accidentally switched two digits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52311 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 09:38:23 +00:00
Duncan Sands
ad205a7687 Allow these transforms for types like i256 while 
still excluding types like i1 (not byte sized)
and i120 (loading an i120 requires loading an i64,
an i32, an i16 and an i8, which is expensive). 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52310 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 08:14:38 +00:00
Evan Cheng
7a15391c8d Fix read after free found by valgrind. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52309 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 07:34:17 +00:00
Evan Cheng
58dcb0e0cd Add option to commuteInstruction() which forces it to create a new (commuted) instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52308 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 07:33:11 +00:00
Owen Anderson
3557801289 Make indexing empty basic blocks an option for the moment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52306 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 07:10:49 +00:00
Chris Lattner
0ad4d9be03 add a const version of stripPointerCasts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52305 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 06:43:06 +00:00
Chris Lattner
25df20f169 simplify some code by using a helper function. This really really 
wants a 'nocapture' predicate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52304 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 06:38:26 +00:00
Chris Lattner
defa1c8034 move a bunch of predicates up into their own section 
in this file, no other changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52303 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 06:30:22 +00:00