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Author SHA1 Message Date
Dan Gohman
c60e0bec11 Add a testcase to help test analysis preservation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83002 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 18:40:27 +00:00
Dan Gohman
23aefe5e92 Create a README.txt for lib/Analysis, and add an entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83001 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 18:38:53 +00:00
Devang Patel
3168b79c1c Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82999 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 18:31:56 +00:00
Dan Gohman
937d2d8624 Use VerifySchedule instead of doing the work manually. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82995 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 16:09:41 +00:00
Dan Gohman
322b95cd5f Fix this debug output to handle the case where the loop has been deleted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82994 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 15:40:01 +00:00
Dan Gohman
6d594a9d76 Include the name of the loop header in debug messages. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82993 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 15:07:18 +00:00
Dan Gohman
2d5dfd94e5 Remove a redundant #ifndef and add an assertion string. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82991 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 14:38:19 +00:00
Dan Gohman
d84db11333 Convert LoopSimplify and LoopExtractor from FunctionPass to LoopPass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82990 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 14:37:51 +00:00
Bob Wilson
522ce97532 Pass the optimization level when constructing the ARM instruction selector. 
Otherwise, it is always set to "default", which prevents debug info from
even being generated during isel.  Radar 7250345.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82988 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 14:30:20 +00:00
Evan Cheng
5adb66a646 Make ARM and Thumb2 32-bit immediate materialization into a single 32-bit pseudo 
instruction. This makes it re-materializable.

Thumb2 will split it back out into two instructions so IT pass will generate the
right mask. Also, this expose opportunies to optimize the movw to a 16-bit move.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82982 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 09:14:39 +00:00
Daniel Dunbar
705428ae4a Don't traverse into .svn directories. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82978 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 07:32:45 +00:00
Anton Korobeynikov
b0d8d78138 Fix thinko in my recent movt commit: it's not safe to remat movt, since it has input reg argument. 
Disable rematting of it for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82975 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 07:26:46 +00:00
Chris Lattner
3ddfb21306 The select instruction is not neccesarily in the same block as the 
phi nodes.  Make sure to phi translate from the right block. 

This fixes a llvm-building-llvm failure on GVN-PRE.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82970 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 06:49:44 +00:00
Evan Cheng
0e6b590b91 Coalescer should not delete extract_subreg, insert_subreg, and subreg_to_reg of 
physical registers. This is especially critical for the later two since they
start the live interval of a super-register. e.g.
%DO<def> = INSERT_SUBREG %D0<undef>, %S0<kill>, 1
If this instruction is eliminated, the register scavenger will not be happy as
D0 is not defined previously.
This fixes PR5055.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82968 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 05:28:43 +00:00
Erick Tryzelaar
17167be948 Document a bug in the ocaml bindings has wrong linkage values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82966 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 04:42:55 +00:00
Erick Tryzelaar
f24bfa7f79 Expose the rest of the attribute settings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82965 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 04:42:47 +00:00
Erick Tryzelaar
4aee041000 Fix a bug in ocaml bindings that has incorrect linkage options. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82964 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 04:42:36 +00:00
Mikhail Glushenkov
3128015782 Regenerate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82958 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 01:28:26 +00:00
Mikhail Glushenkov
ad981bfbcc Add a way to query the number of input files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82957 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 01:16:42 +00:00
Mikhail Glushenkov
d66e8de838 Document the 'not' combinator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82956 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 01:16:07 +00:00
Mikhail Glushenkov
9d7a2dc284 A bit prettier formatting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82955 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 01:15:44 +00:00
Dan Gohman
a9245d63f6 Remove temporary debugging hack. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82953 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 00:44:15 +00:00
Dan Gohman
9450b0e1a6 Move the dominator verification code out of special code embedded within 
the PassManager code into a regular verifyAnalysis method.

Also, reorganize loop verification. Make the LoopPass infrastructure
call verifyLoop as needed instead of having LoopInfo::verifyAnalysis
check every loop in the function after each looop pass. Add a new
command-line argument, -verify-loop-info, to enable the expensive
full checking.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82952 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 00:27:48 +00:00
Dan Gohman
f3f0c89f5f Move this assert to check the condition as soon as it is known. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82951 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 00:10:28 +00:00
Dan Gohman
5c12adaa8b Extend the StartPassTimer and StopPassTimer functions so that the 
code that stops the timer doesn't have to search to find the timer
object before it stops the timer. This avoids a lock acquisition
and a few other things done with the timer running.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82949 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 00:07:05 +00:00
Anton Korobeynikov
6a2fa325c1 Use movt/movw pair to materialize 32 bit constants on ARMv6T2+. 
This should be better than single load from constpool.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82948 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 23:52:58 +00:00
Dan Gohman
1edaef62a4 Fix an old copy+pasto. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82947 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 23:52:07 +00:00
Dan Gohman
3069b3193d Extract the code for inserting a loop into the loop queue into 
a separate function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82946 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 23:49:43 +00:00
Dan Gohman
9702901a1e When a loop is deleted, immediately release all of the active 
LoopPasses for that loop. This avoids trouble with the PassManager
trying to call verifyAnalysis on them, and frees up some memory
sooner rather than later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82945 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 23:43:07 +00:00
Dan Gohman
27a8fb8a54 Extract the code for releasing a pass into a separate function, and 
tidy it up a little.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82944 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 23:38:27 +00:00
Nick Lewycky
c261df9fab Remove the "metadata*" type and simplify the code it complicated. This was only 
used to support GlobalVariables storing MDNodes, back when they were derived
from Constant before the introduction of NamedMDNode, but never removed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82943 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 23:27:42 +00:00
Dan Gohman
ae03af2663 LBRX no longer has an explicit SrcValueSDNode operand, so the type 
operand is now at index 2, rather than 3. This fixes the
"Invalid child # of SDNode!" failures on PowerPC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82942 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 23:17:47 +00:00
Chris Lattner
9b1de95593 simplify some code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82936 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:46:50 +00:00
Chris Lattner
42ebefae8e The bitcast case is not needed here: instcombine turns icmp(bitcast(x), null) -> icmp(x, null) already. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82935 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:42:46 +00:00
Nick Lewycky
4dd68242f1 New unit test for the cloning module, which so far only covers cloning of 
instructions' optimization flags.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82934 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:39:46 +00:00
Chris Lattner
06e4052699 calls are already unmovable, malloc doesn't need a special case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82933 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:36:19 +00:00
Chris Lattner
32c0d2255f calls to external functions are already marked overdefined, special casing 
malloc isn't needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82932 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:35:11 +00:00
Chris Lattner
4412d04876 calls are already handled, malloc doesn't need a special case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82931 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:33:46 +00:00
Nick Lewycky
ae05e7d945 Round out the API for the new optimization flags. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82930 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:33:04 +00:00
Chris Lattner
68b1bbbc55 calls are rejected above, no need to special case malloc here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82929 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:31:39 +00:00
Chris Lattner
439044f4f9 remove special handling of bitcast(malloc), it will be handled 
when the loop inspects the bitcast operand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82928 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:29:28 +00:00
Chris Lattner
2a9325ff2f unlike the malloc instruction, "malloc" calls do not claim to be readonly, just nounwind. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82927 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:23:38 +00:00
Chris Lattner
ebb89b4186 add a new DirectiveMap stringmap, which allows more efficient dispatching 
to directive handlers and allows for easier extensibility.

I only switched a few over for now.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82926 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:16:52 +00:00
Nick Lewycky
e4172f48cc Link order: it matters. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82925 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 20:58:01 +00:00
Chris Lattner
213cd61fa7 allow pushing icmps through phis with multiple uses and across critical edges. 
These are important to push up to encourage jump threading.  This shrinks 176.gcc a bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82923 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 20:46:36 +00:00
Chris Lattner
c6df8f4d5f Enhance the previous fix for PR4895 to allow more values than just 
simple constants for the true/false value of the select.  We now
do phi translation etc.  This really fixes PR4895 :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82917 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 20:18:49 +00:00
Chris Lattner
5d1704ddbf implement PR4895, by making FoldOpIntoPhi handle select conditions 
that are phi nodes.  Also tighten up FoldOpIntoPhi to treat constantexpr
operands to phis just like other variables, avoiding moving constantexpr
computations around.

Patch by Daniel Dunbar.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82913 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 19:57:57 +00:00
Chris Lattner
cec545097c avoid copying MCAsmInfo by value, add an (extremely low prio) fixme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82911 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 19:38:39 +00:00
Tilmann Scheller
8ff95de83c Use explicit structs instead of std::pair to map callee saved regs to spill slots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82909 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 17:58:47 +00:00
Dan Gohman
630c84a685 Delete a bogus comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82908 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 17:50:44 +00:00