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Author SHA1 Message Date
Jakob Stoklund Olesen
ddb09c5258 Remove the SimpleJoin optimization from SimpleRegisterCoalescing. 
Measurements show that it does not speed up coalescing, so there is no reason
the keep the added complexity around.

Also clean out some unused methods and static functions.

llvm-svn: 106548
 2010-06-22 16:13:57 +00:00
Dan Gohman
29b845f3b7 Split out the code for finding a unique loop predecessor from 
getLoopPreheader into a separate function, for clients which don't
require a proper preheader.

llvm-svn: 106543
 2010-06-22 15:25:42 +00:00
Dan Gohman
74d5144414 Use pre-increment instead of post-increment when the result is not used. 
llvm-svn: 106542
 2010-06-22 15:08:57 +00:00
Dan Gohman
5863f1e8c6 Add a comment explaining a non-obvious API. 
llvm-svn: 106539
 2010-06-22 13:57:08 +00:00
Dan Gohman
ff9e611537 Add an explicit keyword. 
llvm-svn: 106538
 2010-06-22 13:53:29 +00:00
Dan Gohman
a3bc6b13f7 Allow "exhaustive" trip count evaluation on phi nodes with all 
constant operands.

llvm-svn: 106537
 2010-06-22 13:15:46 +00:00
Devang Patel
981ff4464c Revert 106528. It is causing self host failures. 
llvm-svn: 106529
 2010-06-22 06:14:09 +00:00
Devang Patel
d5696fa05b Do not rely on DenseMap slot which can be easily invalidated when DenseMap grows. 
llvm-svn: 106528
 2010-06-22 05:16:56 +00:00
Bob Wilson
714eba185c Revert my change to clone named metadata. Buildbots are complaining. 
--- Reverse-merging r106508 into '.':
U    lib/Transforms/Utils/CloneModule.cpp

llvm-svn: 106521
 2010-06-22 02:08:51 +00:00
Dan Gohman
2075612492 When unfolding a load, avoid assuming which instruction that 
kill and dead flags will end up on.

llvm-svn: 106520
 2010-06-22 02:07:21 +00:00
Devang Patel
f50b6147ad Use single interface, using twine, to get named metadata. 
getNamedMetadata().

llvm-svn: 106518
 2010-06-22 01:19:38 +00:00
Evan Cheng
a1ebf91a39 Tail merging pass shall not break up IT blocks. rdar://8115404 
llvm-svn: 106517
 2010-06-22 01:18:16 +00:00
Devang Patel
38d9ee4e35 Discard special LLVM prefix from linkage name. 
llvm-svn: 106516
 2010-06-22 01:06:05 +00:00
Devang Patel
dee41b010a Do not rely on Twine temporaries to survive. 
llvm-svn: 106515
 2010-06-22 01:01:58 +00:00
Chris Lattner
3de7445da3 make sure to initialize indent_level 
llvm-svn: 106513
 2010-06-22 00:40:26 +00:00
Dan Gohman
ac0b4b5352 Fix the new load-unfolding code to update LiveVariable's dead flags, 
in addition to the kill flags.

llvm-svn: 106512
 2010-06-22 00:32:04 +00:00
Bob Wilson
6a07aa9ae8 Include named metadata when cloning a module. 
llvm-svn: 106508
 2010-06-22 00:11:03 +00:00
Eric Christopher
eb35756a31 Fix typo. 
llvm-svn: 106505
 2010-06-21 23:49:08 +00:00
Chris Lattner
6be03758e4 add some support for blockaddress. This isn't really enough to be useful, 
but it will cover uses of blockaddress that are actually in a function.

llvm-svn: 106502
 2010-06-21 23:19:36 +00:00
Chris Lattner
1d76d7e9b2 eliminate a mutable global variable, use raw_ostream::indent instead of 
rolling our own.

llvm-svn: 106501
 2010-06-21 23:14:47 +00:00
Chris Lattner
580470b914 un-indent a huge amount of code out of an anonymous namespace. 
llvm-svn: 106500
 2010-06-21 23:12:56 +00:00
Bruno Cardoso Lopes
d4d53fdb7f revert r106482 
llvm-svn: 106499
 2010-06-21 22:59:03 +00:00
Chris Lattner
c0d70f4edf fix several bugs in the tutorial, patch by Kevin Kelley! 
llvm-svn: 106498
 2010-06-21 22:51:14 +00:00
Dan Gohman
bcc040be1b Teach two-address lowering how to unfold a load to open up commuting 
opportunities. For example, this lets it emit this:

   movq (%rax), %rcx
   addq %rdx, %rcx

instead of this:

   movq %rdx, %rcx
   addq (%rax), %rcx

in the case where %rdx has subsequent uses. It's the same number
of instructions, and usually the same encoding size on x86, but
it appears faster, and in general, it may allow better scheduling
for the load.

llvm-svn: 106493
 2010-06-21 22:17:20 +00:00
Bruno Cardoso Lopes
33256723a7 change parameter name to avoid confusion with global definition 
llvm-svn: 106486
 2010-06-21 21:28:07 +00:00
Bob Wilson
ef565a2ffd sign_extend_inreg needs to be expanded for pre-v6 Thumb as well as ARM. 
Radar 8104310.

llvm-svn: 106484
 2010-06-21 21:27:34 +00:00
Jim Grosbach
bc31f7a24b LEApcrelJT shouldn't be marked as neverHasSideEffects, as we don't want it 
being moved around away from the jump table it references. rdar://8104340

llvm-svn: 106483
 2010-06-21 21:27:27 +00:00
Bruno Cardoso Lopes
40debaf4b8 Add unpack and interleave AVX instructions, encoding tests cooming soon 
llvm-svn: 106482
 2010-06-21 21:21:48 +00:00
Evan Cheng
167a8655c7 Fix PR7421: bug in kill transferring logic. It was ignoring loads / stores which have already been processed. 
llvm-svn: 106481
 2010-06-21 21:21:14 +00:00
Chris Lattner
d7df3e9c5c This makes example Makefile a lot more like actual 
lib/Transforms/Hello/Makefile, and prevents a lot of errors like "Assertion
`Inserted && "Pass registered multiple times!"' failed"

Patch by Gregory Petrosyan!

llvm-svn: 106471
 2010-06-21 20:36:09 +00:00
Eric Christopher
68b77d45c2 Remove isTwoAddress from llvm. 
llvm-svn: 106470
 2010-06-21 20:35:09 +00:00
Chris Lattner
dbea6d7acb "This is just a cosmetic change in MCAsmStreamer.cpp/EmitSymbolAttribute: all attributes have now a \t before and after, as done for '.type'. 
This makes the output look consistent, as well as help some third party assemblers expecting the attributes to be in the second column."

Patch by Arnaud de Grandmaison!

llvm-svn: 106469
 2010-06-21 20:35:01 +00:00
Chris Lattner
e636df7c0b fix typos reported by Adam Warner! 
llvm-svn: 106468
 2010-06-21 20:31:30 +00:00
Eric Christopher
318243d2c6 Remove isTwoAddress from SystemZ. 
llvm-svn: 106467
 2010-06-21 20:25:57 +00:00
Eric Christopher
5b757ab002 Remove isTwoAddress from Sparc. 
llvm-svn: 106466
 2010-06-21 20:22:35 +00:00
Eric Christopher
caf8285bff Remove isTwoAddress from Mips. 
llvm-svn: 106465
 2010-06-21 20:19:21 +00:00
Eric Christopher
109380247d Remove isTwoAddress from Blackfin. 
llvm-svn: 106457
 2010-06-21 20:13:37 +00:00
Eric Christopher
4173fa9514 Remove isTwoAddress from MSP430. 
llvm-svn: 106455
 2010-06-21 20:07:30 +00:00
Dan Gohman
cbede71023 Make this test more robust in case LLVM ever decides to align the global 
variable differently.

llvm-svn: 106454
 2010-06-21 19:56:27 +00:00
Dan Gohman
6a3c46ad49 Use A.append(...) instead of A.insert(A.end(), ...) when A is a 
SmallVector, and other SmallVector simplifications.

llvm-svn: 106452
 2010-06-21 19:47:52 +00:00
Eric Christopher
27afc6b948 Make 80-column. 
llvm-svn: 106448
 2010-06-21 18:56:55 +00:00
Eric Christopher
22c623f01c Remove isTwoAddress from PIC16. 
llvm-svn: 106447
 2010-06-21 18:55:01 +00:00
Eric Christopher
2dae43dbe4 Remove isTwoAddress from XCore. 
llvm-svn: 106446
 2010-06-21 18:51:38 +00:00
Eric Christopher
f0e2a62b21 Remove isTwoAddress from Alpha. 
llvm-svn: 106445
 2010-06-21 18:48:55 +00:00
Dan Gohman
745765d0b8 Move several non-performance-critical member functinos out of line. 
llvm-svn: 106444
 2010-06-21 18:46:45 +00:00
Dale Johannesen
baf342fdab Add missing FileCheck call. 
llvm-svn: 106443
 2010-06-21 18:46:08 +00:00
Devang Patel
79e2417a08 test case for r106438. 
llvm-svn: 106439
 2010-06-21 18:37:23 +00:00
Devang Patel
3dbb143c29 Do not directly use function names to construct new name for named metadata. 
"llvm.dbg.lv.~A" is not a valid name.

llvm-svn: 106438
 2010-06-21 18:36:58 +00:00
Bruno Cardoso Lopes
24af70c17f Move part of SSE 1 & 2 compare, shuffle and unpack instructions closely. Preparing them for refactoring and to the addition of their AVX forms 
llvm-svn: 106437
 2010-06-21 18:36:04 +00:00
Bruno Cardoso Lopes
aff9b1c52f Add AVX regular (non-aliased ones) and,or,xor,andn packed instructions. They are already tested in the MC framework, no test needed 
llvm-svn: 106436
 2010-06-21 18:22:54 +00:00