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Author SHA1 Message Date
Chris Lattner
72f03b62a9 add a note 
llvm-svn: 121656
 2010-12-13 00:15:25 +00:00
Wesley Peck
f842b79b4b Missed some ADDI <-> ADDIK conversions in 121649. 
llvm-svn: 121652
 2010-12-12 22:53:14 +00:00
Wesley Peck
ec32ecb316 Reverting commit to LLVMLibDeps that was inadvertently done in 121649. 
llvm-svn: 121651
 2010-12-12 22:28:51 +00:00
Wesley Peck
95cebfc460 MBlaze delay slot filler was not capable of using ADDK and variants to fill delay slots. This broke several test cases when 121649 was committed. This fixes the regression. 
llvm-svn: 121650
 2010-12-12 22:22:49 +00:00
Wesley Peck
38688d020c The ADD and ADDK (and all variants) instructions where flip-flopped in the MBlaze backend. This bug fix makes 64-bit math work on the MBlaze backend. 
llvm-svn: 121649
 2010-12-12 22:02:31 +00:00
Tobias Grosser
cd3d63e102 Remove useless dynamic_cast<>(). 
Thanks Peter for pointing me to something that should have never been
committed to the llvm code base.

llvm-svn: 121648
 2010-12-12 21:58:28 +00:00
Peter Collingbourne
07b5bc4a9e Regen configure 
llvm-svn: 121646
 2010-12-12 21:42:01 +00:00
Peter Collingbourne
b20fea2b07 Fix paths; AutoRegen.sh changes its current working directory to be the 
autoconf directory, but these paths need to be relative to the main
source directory.  Patch originally by Dan Gohman, r67655.

Also, cause configure.ac to find absolute paths to LLVM source and
object trees.   Together, fixes PR1220.

llvm-svn: 121645
 2010-12-12 21:41:56 +00:00
Wesley Peck
7274c73974 1. Change MBlaze indirect branches to use absolute branch BRALD instead of pc relative branch BRLD. 
2. Make sure that the MBlaze stack is aligned to 4-byte boundaries.
3. Determine frame indexes that should be placed in the callers stack frame, as per the MBlaze ABI, and place them in the correct locations.

llvm-svn: 121639
 2010-12-12 20:52:31 +00:00
Duncan Sands
47a4bbd31d Catch attempts to remove a deleted node from the CSE maps. Better to 
catch this here rather than later after accessing uninitialized memory
etc.  Fires when compiling the testcase in PR8237.

llvm-svn: 121635
 2010-12-12 13:22:50 +00:00
Chris Lattner
13577458da fix typo 
llvm-svn: 121620
 2010-12-12 02:42:57 +00:00
Benjamin Kramer
a638216447 Generalize the and-icmp-select instcombine further by allowing selects of the form 
(x & 2^n) ? 2^m+C : C

we can offset both arms by C to get the "(x & 2^n) ? 2^m : 0" form, optimize the
select to a shift and apply the offset afterwards.

llvm-svn: 121609
 2010-12-11 10:49:22 +00:00
Benjamin Kramer
5a1721f4ac Factor the (x & 2^n) ? 2^m : 0 instcombine into its own method and generalize it 
to catch cases where n != m with a shift.

llvm-svn: 121608
 2010-12-11 09:42:59 +00:00
Evan Cheng
b6773d7e1f (or (and (shl A, #shamt), mask), B) => ARMbfi B, A, ~mask where lsb(mask) == #shamt. rdar://8752056 
llvm-svn: 121606
 2010-12-11 04:11:38 +00:00
Jakob Stoklund Olesen
a523d5f048 Add named timer groups for the different stages of register allocation. 
llvm-svn: 121604
 2010-12-11 00:19:56 +00:00
Jakob Stoklund Olesen
ef80efea1d Move MRI into RegAllocBase. Clean up debug output a bit. 
llvm-svn: 121599
 2010-12-10 23:49:00 +00:00
Jim Grosbach
98dcdf10c2 Add FIXME 
llvm-svn: 121598
 2010-12-10 23:41:10 +00:00
Nick Lewycky
46a6ed1f0f Remove extraneous close parenthesis. 
Fix build breakage.

llvm-svn: 121596
 2010-12-10 23:14:35 +00:00
Nick Lewycky
9afbedbc48 Move variable that's unused in an NDEBUG build inside the DEBUG() macro, fixing 
lib/CodeGen/RegAllocGreedy.cpp:233: error: unused variable 'TRC' [-Wunused-variable]

llvm-svn: 121594
 2010-12-10 23:05:10 +00:00
Owen Anderson
47a78db79b Attempt to get Thumb2 branch fixups working properly. 
llvm-svn: 121593
 2010-12-10 23:02:28 +00:00
Jakob Stoklund Olesen
6cd6e644e7 Force the greedy register allocator to always use the inline spiller. 
Soon, RegAllocGreedy will start splitting live ranges, and then deferred
spilling won't work anyway.

llvm-svn: 121591
 2010-12-10 22:54:44 +00:00
Jakob Stoklund Olesen
cbd4bac09d Rip out live range splitting support from the inline spiller. 
The spiller should only spill. The register allocator will drive live range
splitting, it has the needed information about register pressure and
interferences.

llvm-svn: 121590
 2010-12-10 22:54:40 +00:00
Bill Wendling
59f4c83400 Get rid of ellipses. 
llvm-svn: 121589
 2010-12-10 22:54:30 +00:00
Owen Anderson
8424ab65e2 Fix merge error in my last fix to Thumb2 vldr fixups. 
llvm-svn: 121588
 2010-12-10 22:53:48 +00:00
Owen Anderson
f310c92333 Fixups for Thumb2 vldr's need to have the effective PC aligned as well. 
llvm-svn: 121587
 2010-12-10 22:46:47 +00:00
Bill Wendling
7f1cea7009 The MCFixupKindInfo table needs to be in the order that the enums were 
declared. Add a note specifying this and spruce up the list a bit.

llvm-svn: 121586
 2010-12-10 22:37:19 +00:00
Owen Anderson
e85fabac75 Provide the necessary post-encoder hook for Thumb2 encodings of VMOV and friends. 
llvm-svn: 121585
 2010-12-10 22:32:08 +00:00
Jakob Stoklund Olesen
5ab6552845 Use AllocationOrder in RegAllocGreedy, fix a bug in the hint calculation. 
llvm-svn: 121584
 2010-12-10 22:21:05 +00:00
Bob Wilson
d30768fe3e Add float patterns for Neon vld1-lane/dup and vst1-lane operations. 
llvm-svn: 121583
 2010-12-10 22:13:32 +00:00
Bob Wilson
ae683e722f Remove unused arguments. 
llvm-svn: 121582
 2010-12-10 22:13:24 +00:00
Owen Anderson
aaf97da84b Fix encoding of Thumb1 LDRB and STRB. 
llvm-svn: 121581
 2010-12-10 22:11:13 +00:00
Jim Grosbach
d7f424dec3 Trailing whitespace. 
llvm-svn: 121580
 2010-12-10 21:57:34 +00:00
Owen Anderson
44ad90c850 Fix Thumb2 encodings of STREX and LDREX. 
llvm-svn: 121579
 2010-12-10 21:52:38 +00:00
Dan Gohman
18e2a55c07 Revert r121520, which may have introduced miscompilations. 
llvm-svn: 121573
 2010-12-10 21:48:28 +00:00
Jim Grosbach
82dd80c956 Correct encoding of rotation immediate for Thumb2 instructions. rdar://8755999 
llvm-svn: 121525
 2010-12-10 21:24:18 +00:00
Jim Grosbach
63853d61e1 Fix encoding of 'U' bit for Thumb2 STRD/LDRD instructions. rdar://8755726 
llvm-svn: 121524
 2010-12-10 21:05:07 +00:00
Jim Grosbach
467e860805 More trivial cleanup. No need to define the EncoderMethod property type. Can 
just assign to it.

llvm-svn: 121523
 2010-12-10 20:53:44 +00:00
Jim Grosbach
5696d964ca Tidy up. 
llvm-svn: 121522
 2010-12-10 20:51:35 +00:00
Jim Grosbach
401391235f Trailing whitespace. 
llvm-svn: 121521
 2010-12-10 20:47:29 +00:00
Dan Gohman
d1bf1d8013 Implement PartialAlias checking in BasicAA. 
llvm-svn: 121520
 2010-12-10 20:47:03 +00:00
Jakob Stoklund Olesen
ea59381fc8 Fix miscompilation caused by trivial logic error in the reassignVReg() 
interference check.

llvm-svn: 121519
 2010-12-10 20:45:04 +00:00
Dan Gohman
b0fa0f7849 Minimally update this code to handle PartialAlias. 
llvm-svn: 121518
 2010-12-10 20:14:49 +00:00
Dan Gohman
98f5b2ae22 Use PartialAlias to do better noalias lint checking. 
llvm-svn: 121514
 2010-12-10 20:04:06 +00:00
Dan Gohman
cbee92bb65 Teach AliasAnalysisCounter about PartialAlias. 
llvm-svn: 121513
 2010-12-10 19:53:05 +00:00
Dan Gohman
26e1b4ac11 Teach AliasAnalysisEvaluator about PartialAlias. 
llvm-svn: 121512
 2010-12-10 19:52:40 +00:00
Dan Gohman
9e03ffc789 Update this code to handle PartialAlias as MayAlias. 
llvm-svn: 121508
 2010-12-10 19:40:47 +00:00
Dan Gohman
9d1f5ce1da Introduce a new PartialAlias response for AliasAnalysis. For most 
AliasAnalysis consumers, PartialAlias will be treated as MayAlias.

For AliasAnalysis chaining, MayAlias says "procede to the next analysis".
PartialAlias will be used to indicate that the query should terminate,
even though it didn't reach MustAlias or NoAlias.

llvm-svn: 121507
 2010-12-10 19:38:58 +00:00
Bob Wilson
5ff13f9d5c Fix some invalid alignments for Neon vld-dup and vld/st-lane instructions. 
Alignments smaller than the total size of the memory being loaded or stored,
unless the alignment is 8 bytes, are not allowed.  Add tests for this, too.

llvm-svn: 121506
 2010-12-10 19:37:42 +00:00
Jim Grosbach
4a414e1973 Teach isCSRestore() that ARM/Thumb2 functions will use post-modify LDR 
instructions to restore a single register rather than an LDM instruction.
rdar://8754999

llvm-svn: 121498
 2010-12-10 18:41:15 +00:00
Jakob Stoklund Olesen
e3924a3c85 Add an AllocationOrder class that can iterate over the allocatable physical 
registers for a given virtual register.

Reserved registers are filtered from the allocation order, and any valid hint is
returned as the first suggestion.

For target dependent hints, a number of arcane target hooks are invoked.

llvm-svn: 121497
 2010-12-10 18:36:02 +00:00