6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-08-23 02:29:18 +00:00
Code Issues Projects Releases Wiki Activity
68,518 Commits 39 Branches 0 Tags 277 MiB
b65c175d32
Commit Graph

44301 Commits

Author SHA1 Message Date
Chris Lattner
dcb54ce3da use getFirstNonPHIOrDbg to simplify this code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121664 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 01:28:06 +00:00
Chris Lattner
d5b4db9824 reduce indentation by using continue, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121662 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 01:11:17 +00:00
Chris Lattner
a97c91f014 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121656 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 00:15:25 +00:00
Wesley Peck
638f7a9a5e Missed some ADDI <-> ADDIK conversions in 121649. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121652 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-12 22:53:14 +00:00
Wesley Peck
8f40b24ca1 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121650 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-12 22:22:49 +00:00
Wesley Peck
a7c7b9dccb 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121649 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-12 22:02:31 +00:00
Tobias Grosser
d713acb631 Remove useless dynamic_cast<>(). 
Thanks Peter for pointing me to something that should have never been
committed to the llvm code base.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121648 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-12 21:58:28 +00:00
Wesley Peck
eb13382333 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121639 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-12 20:52:31 +00:00
Duncan Sands
a30b7d2c70 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121635 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-12 13:22:50 +00:00
Benjamin Kramer
2f7228b80c 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121609 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-11 10:49:22 +00:00
Benjamin Kramer
20e3b4b380 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121608 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-11 09:42:59 +00:00
Evan Cheng
a9688c4b57 (or (and (shl A, #shamt), mask), B) => ARMbfi B, A, ~mask where lsb(mask) == #shamt. rdar://8752056 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121606 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-11 04:11:38 +00:00
Jakob Stoklund Olesen
533f58ecdd Add named timer groups for the different stages of register allocation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121604 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-11 00:19:56 +00:00
Jakob Stoklund Olesen
4680dec5fb Move MRI into RegAllocBase. Clean up debug output a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121599 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 23:49:00 +00:00
Jim Grosbach
092e2cd569 Add FIXME 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121598 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 23:41:10 +00:00
Nick Lewycky
a0bb037283 Remove extraneous close parenthesis. 
Fix build breakage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121596 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 23:14:35 +00:00
Nick Lewycky
5a4308bca8 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]


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121594 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 23:05:10 +00:00
Owen Anderson
63ee22065d Attempt to get Thumb2 branch fixups working properly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121593 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 23:02:28 +00:00
Jakob Stoklund Olesen
f6dff84d4e 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121591 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 22:54:44 +00:00
Jakob Stoklund Olesen
3bda29eb4f 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121590 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 22:54:40 +00:00
Owen Anderson
5fd873d8e8 Fix merge error in my last fix to Thumb2 vldr fixups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121588 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 22:53:48 +00:00
Owen Anderson
e2e0f58809 Fixups for Thumb2 vldr's need to have the effective PC aligned as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121587 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 22:46:47 +00:00
Bill Wendling
1591b293d6 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121586 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 22:37:19 +00:00
Owen Anderson
ac00e96273 Provide the necessary post-encoder hook for Thumb2 encodings of VMOV and friends. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121585 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 22:32:08 +00:00
Jakob Stoklund Olesen
dd479e9769 Use AllocationOrder in RegAllocGreedy, fix a bug in the hint calculation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121584 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 22:21:05 +00:00
Bob Wilson
746fa17d59 Add float patterns for Neon vld1-lane/dup and vst1-lane operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121583 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 22:13:32 +00:00
Bob Wilson
20d5515aa5 Remove unused arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121582 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 22:13:24 +00:00
Owen Anderson
0f4b60d43a Fix encoding of Thumb1 LDRB and STRB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121581 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 22:11:13 +00:00
Jim Grosbach
7bf4c02789 Trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121580 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 21:57:34 +00:00
Owen Anderson
808c7d1482 Fix Thumb2 encodings of STREX and LDREX. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121579 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 21:52:38 +00:00
Dan Gohman
839c092548 Revert r121520, which may have introduced miscompilations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121573 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 21:48:28 +00:00
Jim Grosbach
0be099da79 Correct encoding of rotation immediate for Thumb2 instructions. rdar://8755999 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121525 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 21:24:18 +00:00
Jim Grosbach
90cc533fda Fix encoding of 'U' bit for Thumb2 STRD/LDRD instructions. rdar://8755726 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121524 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 21:05:07 +00:00
Jim Grosbach
683fc3e9af More trivial cleanup. No need to define the EncoderMethod property type. Can 
just assign to it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121523 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 20:53:44 +00:00
Jim Grosbach
04da9bf9f1 Tidy up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121522 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 20:51:35 +00:00
Jim Grosbach
a79bd0e1e0 Trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121521 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 20:47:29 +00:00
Dan Gohman
3bd5e52676 Implement PartialAlias checking in BasicAA. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121520 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 20:47:03 +00:00
Jakob Stoklund Olesen
6ce219ec64 Fix miscompilation caused by trivial logic error in the reassignVReg() 
interference check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121519 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 20:45:04 +00:00
Dan Gohman
d891acd184 Minimally update this code to handle PartialAlias. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121518 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 20:14:49 +00:00
Dan Gohman
4a2a3eab2d Use PartialAlias to do better noalias lint checking. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121514 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 20:04:06 +00:00
Dan Gohman
91d747569a Teach AliasAnalysisCounter about PartialAlias. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121513 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 19:53:05 +00:00
Dan Gohman
3d9f1ca5af Teach AliasAnalysisEvaluator about PartialAlias. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121512 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 19:52:40 +00:00
Dan Gohman
2c2f4c8247 Update this code to handle PartialAlias as MayAlias. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121508 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 19:40:47 +00:00
Bob Wilson
a92bac64cb 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121506 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 19:37:42 +00:00
Jim Grosbach
568f528c99 Teach isCSRestore() that ARM/Thumb2 functions will use post-modify LDR 
instructions to restore a single register rather than an LDM instruction.
rdar://8754999

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121498 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 18:41:15 +00:00
Jakob Stoklund Olesen
c9672cb8be 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121497 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 18:36:02 +00:00
Jim Grosbach
e246717c3a Thumb unconditional branch binary encoding. rdar://8754994 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121496 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 18:21:33 +00:00
Jim Grosbach
0108645139 Thumb conditional branch binary encodings. rdar://8745367 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121493 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 17:13:40 +00:00
Rafael Espindola
89b9372605 Fixed version of 121434 with no new memory leaks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121471 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 07:39:47 +00:00
Daniel Dunbar
a87d7ec234 Mach-O: Tweak field name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121465 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 06:19:39 +00:00
Rafael Espindola
eda4a530c9 Fix cmake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121462 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 04:28:37 +00:00
Rafael Espindola
f7fd4aa261 Revert my previous patch to make the valgrind bots happy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121461 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 04:01:09 +00:00
NAKAMURA Takumi
8070812f4c lib/Target/CMakeLists.txt: Add missing lib/Target/TargetAsmInfo.cpp, following up to r121434. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121454 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 02:15:24 +00:00
Kevin Enderby
44a9e8f869 Fix the leak from r121401 of the Operands erased in the list but not deleted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121450 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 01:41:56 +00:00
Nate Begeman
d191751f0e Add some missing predicates. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121445 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 00:54:26 +00:00
Nate Begeman
2ea8ee7c76 Formalize the notion that AVX and SSE are non-overlapping extensions from the compiler's point of view. Per email discussion, we either want to always use VEX-prefixed instructions or never use them, and are taking "HasAVX" to mean "Always use VEX". Passing -mattr=-avx,+sse42 should serve to restore legacy SSE support when desirable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121439 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 00:26:57 +00:00
Rafael Espindola
1c952b9cc9 Initial support for the cfi directives. This is just enough to get 
f:
        .cfi_startproc
        nop
        .cfi_endproc

assembled (on ELF).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121434 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 23:48:29 +00:00
Rafael Espindola
5fad7a99c0 Use const references. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121426 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 23:08:35 +00:00
Bill Wendling
272df516d7 Thumb ldr reg+imm offsets were encoded incorrectly. The scaling factor of the 
t_addrmode_s# address modes is used for ASM printing, not for encoding.
<rdar://problem/8745375>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121417 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 21:49:07 +00:00
Nate Begeman
3c49706a61 Add support for AVX to materialize +0.0 when doing scalar FP. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121415 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 21:43:51 +00:00
Owen Anderson
fe7fac74b4 Use the new IsAligned fixup flag to improve fixup encodings for Thumb2 branches. This is still not perfect, 
but it gets many more of them correct than it did previously.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121414 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 21:34:47 +00:00
Stuart Hastings
a304d02791 Initial support for nested CALLSEQ_START/CALLSEQ_END constructs in LegalizeDAG. 
Necessary for byval support on ARM.  Radar 7662569.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121412 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 21:25:20 +00:00
Jakob Stoklund Olesen
ff092faffb Remember to filter out reserved rergisters from the allocation order. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121411 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 21:20:46 +00:00
Jakob Stoklund Olesen
a0382c6290 Add a forgotten initializer for CheckedFirstInterference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121410 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 21:20:44 +00:00
Owen Anderson
05018c2f28 Fix an issue in some Thumb fixups, where the effective PC address needs to be 4-byte aligned when calculating 
the offset.  Add a new fixup flag to represent this, and use it for the one fixups that I have a testcase for needing
this.  It's quite likely that the other Thumb fixups will need this too, and to have their fixup encoding logic
adjusted accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121408 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 20:27:52 +00:00
Jim Grosbach
b492a7c213 Rename CB/CBZ specific fixup accordingly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121404 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 19:50:12 +00:00
Devang Patel
dea914bed9 Add assert to catch an attempt to emit .byte 256 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121402 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 19:26:21 +00:00
Kevin Enderby
193c3acbe5 Add support for parsing ARM arithmetic instructions that update or don't update 
the condition codes.  Where the ones that do have an 's' suffix and the ones
that don't don't have the suffix.  The trick is if MatchInstructionImpl() fails
we try again after adding a CCOut operand with the correct value and removing
the 's' if present.  Four simple test cases added for now, lots more to come.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121401 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 19:19:43 +00:00
Jim Grosbach
027d6e8d1c Rename the encoder method for t_cbtarget to match. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121399 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 19:04:53 +00:00
Jim Grosbach
cf6220a9de Thumb needs a few different encoding schemes for branch targets. Rename 
t_brtarget to be more specific.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121398 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 19:01:46 +00:00
Jim Grosbach
c6f9261711 ARM stm/ldm instructions require more than one register in the register list. 
Otherwise, a plain str/ldr should be used instead. Make sure we account for
that in prologue/epilogue code generation.
rdar://8745460

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121391 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 18:31:13 +00:00
Andrew Trick
b853e6c370 Added register reassignment prototype to RAGreedy. It's a simple 
heuristic to reshuffle register assignments when we can't find an
available reg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121388 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 18:15:21 +00:00
Michael J. Spencer
924aa23b74 Support/Windows/PathV2: Fix header comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121383 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 17:37:42 +00:00
Michael J. Spencer
333ad3f2bf Fix whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121382 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 17:37:32 +00:00
Michael J. Spencer
58fe86dc0e Support: Move c_str from SmallVector back to SmallString and add a free standing 
templated c_str in Windows.h to replace it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121381 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 17:37:18 +00:00
Michael J. Spencer
61187dd0ad Support/FileSystem: Change file_status predicate functions that cannot fail to 
return their result instead of an error_code. Also add some missing predicate
functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121380 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 17:37:02 +00:00
Michael J. Spencer
333fb04506 Support/MemoryBuffer: Replace all uses of std::string *ErrMsg with error_code &ec. And fix clients. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121379 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 17:36:48 +00:00
Bruno Cardoso Lopes
908b6ddad6 Add ROTR and ROTRV mips32 instructions. Patch by Akira Hatanaka 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121377 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 17:32:30 +00:00
Bruno Cardoso Lopes
90c595425b Fix delay slot filler for non mips1 targets. Patch by Akira Hatanaka 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121376 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 17:31:11 +00:00
Kalle Raiskila
7d17097e4a Dont' feed ILA two inputs - it takes just one. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121372 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 16:17:31 +00:00
Jim Grosbach
bfd0daa6a6 tidy up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121371 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 16:15:41 +00:00
Jim Grosbach
2a4f0986ac 80 columns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121370 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 16:14:46 +00:00
Chris Lattner
8fdca6a873 enhance memcpyopt to zap memcpy's that have the same src/dst. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121362 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 07:45:45 +00:00
Chris Lattner
f7f35467a9 fix PR8753, eliminating a case where we'd infinitely make a 
substitution because it doesn't actually change the IR.  Patch by
Jakub Staszak!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121361 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 07:39:50 +00:00
Eric Christopher
d8c0536651 Rewrite the darwin tlv support to use a chain and return to copying 
the output to the correct register. Fixes a hidden problem uncovered
by the last patch where we'd try to DAG combine our MVT::Other node
oddly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121358 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 06:25:53 +00:00
Owen Anderson
f33b302e5b Take the first step towards making LVI non-recursive: get rid of the LVIQuery abstraction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121357 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 06:14:58 +00:00
Eric Christopher
503a64dcd4 80-col fixups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121356 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 04:48:06 +00:00
Wesley Peck
8397be0427 Reworking the stack layout generated by the MBlaze backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121355 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 03:42:04 +00:00
Owen Anderson
6b0fa635d5 Fix encoding of the immediate operands on post-indexed LDR and friends. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121354 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 02:56:12 +00:00
Dan Gohman
d8e0c0438a Really check that the bits that will become zero are actually already zero 
before eliminating the operation that zeros them. This fixes rdar://8739316.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121353 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 02:52:17 +00:00
Eric Christopher
1a48c032bd Fix up some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121351 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 01:57:45 +00:00
Owen Anderson
d7b3f5870d Fix Thumb2 fixups for ldr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121350 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 01:51:07 +00:00
Jim Grosbach
766a63d20e Add a textual message to the assert. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121349 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 01:23:51 +00:00
Jim Grosbach
9702e6075c Add a sanity check assert() for t2ADD/SUBrSPi instructions that they really are 
referencing the stack pointer as they say they are.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121347 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 01:22:19 +00:00
Jim Grosbach
cde31293d4 When using multiple instructions to reference a frame index, make sure to 
update the opcode when necessary as well as the source register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121346 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 01:22:13 +00:00
Jim Grosbach
a0e23c5e95 The add/sub SP instructions are really pseudos. The assembler should ignore 
them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121345 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 01:21:27 +00:00
Jakob Stoklund Olesen
a35cce1a14 IntervalMap iterators are heavyweight, so avoid copying them around and use 
references instead.

Similarly, IntervalMap::begin() is almost as expensive as find(), so use find(x)
instead of begin().advanceTo(x);

This makes RegAllocBasic run another 5% faster.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121344 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 01:06:52 +00:00
Matt Beaumont-Gay
0a29c270b5 Remove unused variables 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121343 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 01:04:43 +00:00
Owen Anderson
8f07943317 Fix typo in Thumb2 branch fixup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121342 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 01:02:09 +00:00
Eric Christopher
2040961f89 Stop confusing people, it's not really a chain, or a tumor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121340 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 00:57:19 +00:00
Bill Wendling
2fe813af23 Remove extraneous semicolon. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121338 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 00:51:54 +00:00
Bill Wendling
797b7aab35 Attempt to make the bit-twiddling readable resulted in the binary value being 
overwritten.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121337 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 00:44:33 +00:00
Bill Wendling
09aa3f0ef3 The BLX instruction is encoded differently than the BL, because why not? In 
particular, the immediate has 20-bits of value instead of 21. And bit 0 is '0'
always. Going through the BL fixup encoding was trashing the "bit 0 is '0'"
invariant.

Attempt to get the encoding at slightly more correct with this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121336 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 00:39:08 +00:00
Eric Christopher
8bce7cc3bf Remove extraneous copy from DAG conversion for darwin tls. This was 
popping up at O0 when it wasn't folded and the fast allocator would
complain.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121330 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 00:27:58 +00:00
Owen Anderson
fb20d89075 Fix Thumb2 BCC encoding and fixups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121329 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 00:27:41 +00:00
Eric Christopher
2871768f40 Add rsp to the uses for the same reason as 32-bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121328 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 00:26:41 +00:00
Devang Patel
d639c7cab4 DW_FORM_data1 may not provide sufficient room for vtable index, use _udata instead. 
This fixes radar 8730409.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121323 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 00:10:40 +00:00
Kevin Enderby
76331754d4 Allow a slash, '/', as a prefix separator for X86. rdar://8741045 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121320 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 23:57:59 +00:00
Jakob Stoklund Olesen
9b0c4f8af3 Properly deal with empty intervals when checking for interference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121319 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 23:51:35 +00:00
Jason W Kim
045869c12a Style nit and whitespace cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121317 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 23:35:25 +00:00
Jim Grosbach
60fc2ed2bb Clean up the add/sub w/ SP source reg instructions in Thumb2 a bit. Add a FIXME 
for more thorough cleanup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121315 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 23:30:19 +00:00
Jim Grosbach
20e0fa698d Fix T2TwoRegImm and use it for t2ADDrSPi12 and friends. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121314 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 23:24:29 +00:00
Jason W Kim
0062db8b4f Removed dead comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121313 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 23:19:44 +00:00
Jason W Kim
a0871e7927 ARM/MC/ELF TPsoft is now a proper pseudo inst. 
Added test to check bl __aeabi_read_tp gets emitted properly for ELF/ASM
as well as ELF/OBJ (including fixup)

Also added support for ELF::R_ARM_TLS_IE32



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121312 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 23:14:44 +00:00
Jim Grosbach
7685ff84ad T2TwoRegImm isn't right for t2SUBrSPi12. Use T2I instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121311 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 23:13:01 +00:00
Jim Grosbach
37474e6d68 Add operand encoding for Thumb2 subw SP + imm. rdar://8745434 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121310 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 23:12:09 +00:00
Jim Grosbach
07e9b26371 Add operand encoding for Thumb2 addw Rn + imm. rdar://8745434 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121309 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 23:04:16 +00:00
Bill Wendling
dff2f7151f Support the "target" encodings for the CB[N]Z instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121308 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 23:01:43 +00:00
Evan Cheng
5d9e016025 Fix an obvious cut-n-paste error. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121307 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 23:01:18 +00:00
Jakob Stoklund Olesen
90c1d7ddfc Implement very primitive hinting support in RegAllocGreedy. 
The hint is simply tried first and then forgotten if it couldn't be allocated
immediately.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121306 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 22:57:16 +00:00
Jim Grosbach
b76dfe06d9 Add operand encoding for Thumb2 addw SP + imm. rdar://8745434 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121305 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 22:50:19 +00:00
Jim Grosbach
7c6d85a981 Parameterize opcode encoding bits for Thumb2 extended precision integer 
multiply instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121301 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 22:38:41 +00:00
Jim Grosbach
5208204899 Fix operand encoding for Thumb2 extended precision multiplies. rdar://8745555 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121297 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 22:29:28 +00:00
Jakob Stoklund Olesen
d0bec3e62c Store (priority,regnum) pairs in the priority queue instead of providing an 
abstract priority queue interface in subclasses that want to override the
priority calculations.

Subclasses must provide a getPriority() implementation instead.

This approach requires less code as long as priorities are expressable as simple
floats, and it avoids the dangers of defining potentially expensive priority
comparison functions.

It also should speed up priority_queue operations since they no longer have to
chase pointers when comparing registers. This is not measurable, though.

Preferably, we shouldn't use floats to guide code generation. The use of floats
here is derived from the use of floats for spill weights. Spill weights have a
dynamic range that doesn't lend itself easily to a fixpoint implementation.

When someone invents a stable spill weight representation, it can be reused for
allocation priorities.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121294 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 22:22:41 +00:00
Eric Christopher
bece04845e Reword comment slightly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121293 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 22:21:42 +00:00
Jim Grosbach
8638692362 Simplify T2 operand assignment notation a bit. No need to specify a bit range 
for the source field when it's the whole thing that's being referenced.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121291 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 22:10:43 +00:00
Devang Patel
b351ebf7fc Use type's file info while describing inheritance relationship. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121289 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 21:46:37 +00:00
Eric Christopher
f299da8ec3 Fix comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121285 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 21:35:09 +00:00
Jakob Stoklund Olesen
753936602e Trim includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121283 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 21:12:00 +00:00
Devang Patel
44498a640d Add support to create debug info for functions and methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121281 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 20:42:44 +00:00
Jim Grosbach
0c2c217244 Tweak ARM fixup value adjustments for Thumb to better handle the half-word 
ordering of thumb mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121280 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 20:32:07 +00:00
Devang Patel
0a2551de2c Add support to create class type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121279 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 20:18:20 +00:00
Andrew Trick
6b1207267f Generalize PostRAHazardRecognizer so it can be used in any pass for 
both forward and backward scheduling. Rename it to
ScoreboardHazardRecognizer (Scoreboard is one word). Remove integer
division from the scoreboard's critical path.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121274 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 20:04:29 +00:00
Owen Anderson
cc78f5c09c Improve comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121272 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 19:31:11 +00:00
Jim Grosbach
022ab3779c Add initializer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121262 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 15:36:45 +00:00
Evan Cheng
275bf63115 Add comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121238 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 06:29:02 +00:00
Jakob Stoklund Olesen
cba2e06d52 Stub out RegAllocGreedy. 
This new register allocator is initially identical to RegAllocBasic, but it will
receive all of the tricks that RegAllocBasic won't get.

RegAllocGreedy will eventually replace linear scan.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121234 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 03:26:16 +00:00
Bill Wendling
b8958b031e Add support for loading from a constant pool. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121226 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 01:57:09 +00:00
Devang Patel
43c249cf1e Add support to create vector, array, enums etc... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121224 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 01:50:15 +00:00
Jim Grosbach
5be6d2af38 Let target asm backends see assembler flags as they go by. Use that to handle 
thumb vs. arm mode differences in WriteNopData().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121219 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 01:16:55 +00:00
Jakob Stoklund Olesen
1b19dc1d8b Move RABasic::addMBBLiveIns to the base class, it is generally useful. 
Minor optimization to the use of IntervalMap iterators. They are fairly
heavyweight, so prefer SI.valid() over SI != end().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121217 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 01:06:06 +00:00
Owen Anderson
255eafbd49 Simplify the byte reordering logic slightly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121216 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 00:21:33 +00:00
Owen Anderson
d8e351b96f VLDR fixups need special handling under Thumb. While the encoding is the same, 
the order of the bytes in the data stream is flipped around.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121215 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 00:18:36 +00:00
Devang Patel
94541efd92 Global variable does not need linkage name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121212 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 00:06:22 +00:00
Devang Patel
48f17ba2a6 Add support to create local variable's debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121211 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 23:58:00 +00:00
Rafael Espindola
4f4363a490 Layout each section independently. With the testcase in PR8711: 
before:
        4 assembler - Number of assembler layout and relaxation steps
    78563 assembler - Number of emitted assembler fragments
  8693904 assembler - Number of emitted object file bytes
   271223 assembler - Number of evaluated fixups
330771677 assembler - Number of fragment layouts
     5958 assembler - Number of relaxed instructions
  2508361 mcexpr    - Number of MCExpr evaluations

real	0m26.123s
user	0m25.694s
sys	0m0.388s

after:

      4 assembler - Number of assembler layout and relaxation steps
  78563 assembler - Number of emitted assembler fragments
8693904 assembler - Number of emitted object file bytes
 271223 assembler - Number of evaluated fixups
 231507 assembler - Number of fragment layouts
   5958 assembler - Number of relaxed instructions
2508361 mcexpr    - Number of MCExpr evaluations

real	0m2.500s
user	0m2.113s
sys	0m0.273s

And yes, the outputs are identical :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121207 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 23:32:26 +00:00
Matt Beaumont-Gay
2bf315f087 Fix a warning about a variable which is only used in an assertion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121206 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 23:26:21 +00:00
Devang Patel
fe58f95f36 Add support to create variables, structs etc.. using DIBuilder. 
This is still work in progress.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121205 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 23:25:47 +00:00
Jakob Stoklund Olesen
953af2c3c5 Switch LiveIntervalUnion from std::set to IntervalMap. 
This speeds up RegAllocBasic by 20%, not counting releaseMemory which becomes
way faster.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121201 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 23:18:47 +00:00
Bill Wendling
d832fa053b Cleanup in the Darwin end. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121198 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 23:11:00 +00:00
Evan Cheng
06d65f5156 Fix a bad prologue / epilogue codegen bug where the compiler would emit illegal 
vpush instructions to save / restore VFP / NEON registers like this:
vpush {d8,d10,d11}
vpop {d8,d10,d11}

vpush and vpop do not allow gaps in the register list.
rdar://8728956


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121197 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 23:08:38 +00:00
Bill Wendling
52e635ea35 A bit of cleanup: early exit ApplyFixup and cache the Fixup offset. No 
functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121195 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 23:05:20 +00:00
Jim Grosbach
d967cd096a Binary encoding for ARM tLDRspi and tSTRspi. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121186 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 21:50:47 +00:00
Owen Anderson
bdf714450b Fix Thumb2 encoding of the S bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121182 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 20:50:15 +00:00
Jim Grosbach
97a884d602 Refactor the ARM CMPz* patterns to just use the normal CMP instructions when 
possible. They were duplicates for everything exception the source pattern
before.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121179 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 20:41:06 +00:00
Evan Cheng
52f21e35e8 Code clean up; no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121176 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 20:11:46 +00:00
Evan Cheng
9801b5c822 Code clean up; no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121172 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 19:59:34 +00:00
Dan Gohman
a6399ae089 Remove the code from Function::dropAllReferences which replaced 
uses of the function's blocks with undef. This code isn't needed,
because BasicBlock's destructor handles such uses. Also, undef isn't
correct, since blockaddresses may still be used for comparisons
with null.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121170 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 19:56:51 +00:00
Bruno Cardoso Lopes
bd3af09cef Remove target specific node MipsISD::CMov, which is not used because all conditional moves are directly matched using tablegen patterns. If there's a need in the future, we can introduce it again 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121164 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 19:04:14 +00:00
Bruno Cardoso Lopes
ab8d53a56a Match a pattern generated by a dag combiner opt where: 
(select (load (load tga0)) (load tga1)) => (load (select (load tga0) tga1))

Thanks to Akira for pointing that.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121163 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 19:00:20 +00:00
Jakob Stoklund Olesen
2b38c51f0e Simplify assertion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121162 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 18:51:27 +00:00
Michael J. Spencer
c20beb9cc5 Support: Remove Alarm. It is unused (via local grep and google code search). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121160 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 18:41:59 +00:00
Michael J. Spencer
12ccf67457 Support/PathV2: Remove const from bool return types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121157 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 18:12:07 +00:00
Jim Grosbach
5169220624 Encode the literal field for tCMPzi instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121153 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 17:48:24 +00:00
Rafael Espindola
545b77ef50 Fix absolute recording of differences of symbols in two sections. Reduced from ctor_dtor_count-2.cpp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121152 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 17:12:32 +00:00
Michael J. Spencer
5029159fbe Support/PathV2: Change most functions in the path namespace to return their work 
via their return value instead of an out parameter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121149 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 17:04:04 +00:00
Daniel Dunbar
dc3b906173 build: Go back to dropping __eprintf reference when building with Clang, see 
comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121146 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 16:29:44 +00:00
Benjamin Kramer
6aa4943599 Add parens to pacify gcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121142 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 15:50:35 +00:00
Frits van Bommel
8e8cdc8fe0 Remove some dead code from the jump threading pass. 
The last uses of these functions were removed in r113852 when LazyValueInfo was permanently enabled and removed the need for them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121133 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 13:08:07 +00:00
Jay Foad
40f8f6264d PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() and 
zextOrTrunc(), and APSInt methods extend(), extOrTrunc() and new method
trunc(), to be const and to return a new value instead of modifying the
object in place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121120 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 08:25:19 +00:00
Owen Anderson
0ea112f104 Don't leak the mutex when loading dynamic libraries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121119 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 07:56:20 +00:00
Rafael Espindola
3b3148f864 Fix relocations with weak definitions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121114 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 05:57:28 +00:00
Chris Lattner
1945d58025 reapply r121100 with a tweak to constant fold ConstExprs with TargetData 
(if available) as we go so that we get simple constantexprs not insane ones.
This fixes the failure of clang/test/CodeGenCXX/virtual-base-ctor.cpp
that the previous iteration of this patch had.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121111 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 04:33:29 +00:00
Michael J. Spencer
ca3a339d76 Support/PathV2: Cleanup separator handling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121110 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 03:57:48 +00:00
Michael J. Spencer
936671b2ea Support/PathV2: Remove the error_code return type from all functions in the path 
namespace. None of them return anything except for success anyway. These will be
converted to returning their result soon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121109 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 03:57:37 +00:00
Michael J. Spencer
ee271d8758 Support/PathV2: Move make_absolute from path to fs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121108 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 03:57:17 +00:00
Rafael Espindola
bf60dad984 Fix pcrel relocations that cross sections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121107 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 03:50:14 +00:00
NAKAMURA Takumi
63fbb52163 lib/Target/X86/X86MCAsmInfo.cpp: [PR8741] On Win64, specify explicit PrivateGlobalPrefix as ".L". 
Or, global symbols @Lxxxx might be treated as temporal symbol by MCSymbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121103 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 02:43:45 +00:00
Eric Christopher
6a3e305326 Temporarily revert r121100 as it's causing clang to fail 
CodeGenCXX/virtual-base-ctor.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121102 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 02:41:11 +00:00
Chris Lattner
fb431099c5 fix PR8710 - teach global opt that some constantexprs are too complex to 
put in a global variable's initializer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121100 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 01:59:32 +00:00
Jakob Stoklund Olesen
1fe045279b Remove unused member. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121098 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 01:32:45 +00:00
Michael J. Spencer
69cbbbf005 Support/Unix/PathV2: Return the real error from realpath instead of any error 
that close or unlink set.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121094 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 01:23:39 +00:00
Michael J. Spencer
79c3c3a1de Support/Unix/PathV2: Use 0770 instead of 0700 when creating a directory. Also use 
the standard macros instead of octal notation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121093 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 01:23:29 +00:00
Michael J. Spencer
fbd1bbd7fa Support/PathV2: Use SmallVector::clear instead of set_size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121092 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 01:23:19 +00:00
Michael J. Spencer
ad8a14f24e Support/PathV2: Clarify and correct documentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121091 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 01:23:08 +00:00
Michael J. Spencer
1522fce477 Support/PathV2: Move current_path from path to fs and fix the Unix implementation. 
Unix bug spotted by Dan Gohman.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121090 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 01:22:31 +00:00
Rafael Espindola
f10d2be573 Fix a crash reduced from gcc produced assembly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121085 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 01:09:54 +00:00
Owen Anderson
eb6779c5b9 Second attempt at converting Thumb2's LDRpci, including updating the gazillion places that need to know about it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121082 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 00:45:21 +00:00
Rafael Espindola
85f2ecc697 Sorry for such a large commit. The summary is that only MachO cares about the 
actuall addresses in a .o file, so it is better to let the MachO writer compute
it.

This is good for two reasons. First, areas that shouldn't care about
addresses now don't have access to it. Second, the layout of each section
is independent. I should use this in a subsequent commit to speed it up.

Most of the patch is just removing the section address computation. The two
interesting parts are the change on how we handle padding in the end
of sections and how MachO can get the address of a-b when a and b are in
different sections.

Since now the expression evaluation normally doesn't know the section address,
it will think that a-b needs relocation and let the MachO writer know. Once
it has computed the section addresses, it calls back the expression evaluation
with the section addresses to resolve these expressions.

The remaining problem is the handling of padding. Currently it will create
a special alignment fragment at the end. Since that fragment doesn't update
the alignment of the section, it needs the real address to be computed.

Since now the layout will not compute a-b with a and b in different sections,
the only effect that the special alignment fragment has is update the
address size of the section. This can also be done by the MachO writer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121076 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 00:27:36 +00:00
Jim Grosbach
662a816e89 Add fixup for Thumb1 BL/BLX instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121072 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 23:57:07 +00:00
Frits van Bommel
6033b346e2 Implement jump threading of 'indirectbr' by keeping track of whether we're looking for ConstantInt*s or BlockAddress*s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121066 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 23:36:56 +00:00
Devang Patel
b7313e274c Undefined value in reg 0 may need a marker to identify end of source range. 
This will be used to truncate live range of DBG_VALUE instruction by register allocator and friends.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121061 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 22:48:22 +00:00
Devang Patel
afeaae7a94 If dbg_declare() or dbg_value() is not lowered by isel then emit DEBUG message instead of creating DBG_VALUE for undefined value in reg0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121059 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 22:39:26 +00:00
Rafael Espindola
22373b230a Use references to simplify the code a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121050 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 22:30:54 +00:00
Wesley Peck
a3b2200472 Adding bug fix that was suppose to be part of 121044. 
patch contributed by Jack Whitham!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121049 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 22:19:28 +00:00
Wesley Peck
dc80380de8 Fixed reversed operands for IDIV and CMP instructions in MBlaze backend. 
Use BRAD instead of BRD for indirect branches in MBlaze backend.

patch contributed by Jack Whitham!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121044 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 22:06:49 +00:00
Jason W Kim
56a399023a Refactor ELFObjectWriter. 
+ ARM/X86/MBlaze now share a common RecordRelocation
+ ARM/X86/MBlaze arch specific routines are limited to GetRelocType()



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121043 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 21:57:34 +00:00
Chris Lattner
f51a6cc5bf replace a linear scan with a symtab lookup, reduce indentation. 
No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121042 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 21:53:07 +00:00
Rafael Espindola
1dda29bdff use getSymbolOffset. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121041 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 21:51:55 +00:00
Chris Lattner
29d8d6b039 Use a stronger predicate here, pointed out by Duncan 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121040 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 21:48:10 +00:00
Chris Lattner
a9d4da85d6 add some DEBUG statements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121038 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 21:13:51 +00:00
Wesley Peck
1e8cdd599c Fix a 16-bit immediate value detection bug in the MBlaze delay slot filler. 
Address more hazards in the MBlaze delay slot filler.

patch contributed by Jack Whitham!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121037 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 21:11:01 +00:00
Rafael Espindola
f96d17b886 Another use of getSymbolOffset. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121034 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 19:55:05 +00:00
Rafael Espindola
179821ac1f Remove the instruction fragment to data fragment lowering since it was causing 
freed data to be read. I will open a bug to track it being reenabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121028 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 19:08:48 +00:00
Owen Anderson
c76c59840b Revert r121021, which broke the buildbots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121026 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 18:57:40 +00:00
Jim Grosbach
ba3368ceae Trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121024 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 18:47:44 +00:00
Owen Anderson
4c386fc754 Improve handling of Thumb2 PC-relative loads by converting LDRpci (and friends) to Pseudos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121021 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 18:35:51 +00:00
Jim Grosbach
04f74942f2 Encode the register operand of ARM CondCode operands correctly. ARM::CPSR if 
the instruction is predicated, reg0 otherwise.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121020 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 18:30:57 +00:00
Jim Grosbach
d67641b6f8 The ARM AsmMatcher needs to know that the CCOut operand is a register value, 
not an immediate. It stores either ARM::CPSR or reg0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121018 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 18:21:12 +00:00
Rafael Espindola
0bbe0b440e Second try at making direct object emission produce the same results 
as llc + llvm-mc. This time ELF is not changed and I tested that llvm-gcc
bootstrap on darwin10 using darwin9's assembler and linker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121006 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 17:27:56 +00:00
Rafael Espindola
6d86492f5e Revert previous two patches while I try to find out how to make both 
linux and darwin assemblers happy :-(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121004 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 15:35:15 +00:00
Rafael Espindola
2303c9dd69 Add an EmitAbsValue helper method and use it in cases where we want to be sure 
that no relocations are used (on MochO).
Fixes llc producing different output from llc + llvm-mc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121000 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 14:53:14 +00:00
Chris Lattner
6c3ee0f3c9 Fix PR8735, a really terrible problem in the inliner's "alloca merging" 
optimization.

Consider:
static void foo() {
  A = alloca
  ...
}

static void bar() {
  B = alloca
  ...
  call foo();
}

void main() {
  bar()
}

The inliner proceeds bottom up, but lets pretend it decides not to inline foo
into bar.  When it gets to main, it inlines bar into main(), and says "hey, I
just inlined an alloca "B" into main, lets remember that.  Then it keeps going
and finds that it now contains a call to foo.  It decides to inline foo into
main, and says "hey, foo has an alloca A, and I have an alloca B from another
inlined call site, lets reuse it".  The problem with this of course, is that 
the lifetime of A and B are nested, not disjoint.

Unfortunately I can't create a reasonable testcase for this: the one in the
PR is both huge and extremely sensitive, because you minor tweaks end up
causing foo to get inlined into bar too early.  We already have tests for the
basic alloca merging optimization and this does not break them.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120995 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 07:52:42 +00:00
Chris Lattner
39add23dc5 improve comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120994 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 07:43:04 +00:00
Chris Lattner
7d32b8032d improve -debug output and comments a little. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120993 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 07:38:40 +00:00
Michael J. Spencer
476d2f769e Support/Windows: Make MinGW happy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120991 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 06:02:07 +00:00
Michael J. Spencer
753cbbbd3c Support/FileSystem: Add directory_iterator implementation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120989 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 04:28:42 +00:00
Michael J. Spencer
f150e7695e Support/PathV2: Fix append to not add a slash to empty or root paths. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120988 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 04:28:23 +00:00
Michael J. Spencer
7eec50bf4f Support/Windows: Add ScopedHandle and move some clients over to it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120987 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 04:28:13 +00:00
Che-Liang Chiou
f964486771 ptx: add shift instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120982 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 04:00:03 +00:00
Rafael Espindola
f8803fe417 Remove the getAddress getter, initialize Ordinal in the constructor and use 
that on the ELF writer to detect a section we created.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120981 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 03:48:09 +00:00
Rafael Espindola
f3faf92636 Simplify a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120980 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 03:36:43 +00:00
Rafael Espindola
81d8ea5bd2 Use getSymbolOffset on the COFF writer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120979 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 03:24:04 +00:00
Rafael Espindola
340a7a1c8f Don't use PadSectionToAlignment on windows. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120978 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 03:03:44 +00:00
Rafael Espindola
ffd902bfb7 Add a getSymbolOffset method and use it in the ELF writer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120977 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 02:57:26 +00:00
Chris Lattner
cc10244d77 Fix PR8728, a miscompilation I recently introduced. When optimizing 
memcpy's like:
  memcpy(A, B)
  memcpy(A, C)

we cannot delete the first memcpy as dead if A and C might be aliases.
If so, we actually get:

  memcpy(A, B)
  memcpy(A, A)

which is not correct to transform into:

  memcpy(A, A)

This patch was heavily influenced by Jakub Staszak's patch in PR8728, thanks
Jakub!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120974 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 01:48:06 +00:00
Evan Cheng
04e2b639c1 Eliminate unneeded #include's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120971 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 23:41:43 +00:00
NAKAMURA Takumi
714e07f75d ARM/CMakeLists.txt: Add missing MLxExpansionPass.cpp since r120960. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120966 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 23:08:57 +00:00
Evan Cheng
167be80ee7 Code clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120965 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 23:03:45 +00:00
Evan Cheng
f79ed109ec Remove an unused variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120964 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 23:03:35 +00:00
Cameron Zwarich
9eaf49b320 Some cleanup before I start committing some incremental progress on 
StrongPHIElimination.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120961 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 22:34:08 +00:00
Evan Cheng
48575f6ea7 Making use of VFP / NEON floating point multiply-accumulate / subtraction is 
difficult on current ARM implementations for a few reasons.
1. Even though a single vmla has latency that is one cycle shorter than a pair
   of vmul + vadd, a RAW hazard during the first (4? on Cortex-a8) can cause
   additional pipeline stall. So it's frequently better to single codegen
   vmul + vadd.
2. A vmla folowed by a vmul, vmadd, or vsub causes the second fp instruction to
   stall for 4 cycles. We need to schedule them apart.
3. A vmla followed vmla is a special case. Obvious issuing back to back RAW
   vmla + vmla is very bad. But this isn't ideal either:
     vmul
     vadd
     vmla
   Instead, we want to expand the second vmla:
     vmla
     vmul
     vadd
   Even with the 4 cycle vmul stall, the second sequence is still 2 cycles
   faster.

Up to now, isel simply avoid codegen'ing fp vmla / vmls. This works well enough
but it isn't the optimial solution. This patch attempts to make it possible to
use vmla / vmls in cases where it is profitable.

A. Add missing isel predicates which cause vmla to be codegen'ed.
B. Make sure the fmul in (fadd (fmul)) has a single use. We don't want to
   compute a fmul and a fmla.
C. Add additional isel checks for vmla, avoid cases where vmla is feeding into
   fp instructions (except for the #3 exceptional case).
D. Add ARM hazard recognizer to model the vmla / vmls hazards.
E. Add a special pre-regalloc case to expand vmla / vmls when it's likely the
   vmla / vmls will trigger one of the special hazards.

Work in progress, only A+B are enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120960 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 22:04:16 +00:00
Cameron Zwarich
0a3fdd6e11 Remove the PHIElimination.h header, as it is no longer needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120959 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 21:39:42 +00:00
Frits van Bommel
a4805cf6ef Fix PR 4170 by having ExtractValueInst::getIndexedType() reject out-of-bounds indexing. 
Also add asserts that the indices are valid in InsertValueInst::init(). ExtractValueInst already asserts when constructed with invalid indices.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120956 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 20:50:26 +00:00
Cameron Zwarich
120188605f I forgot to actually remove the FindCopyInsertPoint() declaration from 
PHIElimination.h.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120953 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 19:58:57 +00:00
Cameron Zwarich
2225dd81e9 Remove the SplitCriticalEdge() method declaration from PHIElimination.h. At one 
time, this method existed, but now PHIElimination uses the method of the same
name on MachineBasicBlock.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120952 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 19:54:23 +00:00
Cameron Zwarich
a474685d06 Move the FindCopyInsertPoint method of PHIElimination to a new standalone 
function so that it can be shared with StrongPHIElimination.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120951 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 19:51:05 +00:00
Frits van Bommel
ea388f217b Refactor jump threading. 
Should have no functional change other than the order of two transformations that are mutually-exclusive and the exact formatting of debug output.
Internally, it now stores the ConstantInt*s as Constant*s, and actual undef values instead of nulls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120946 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 19:06:41 +00:00
Frits van Bommel
6f9a8307e0 Remove trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120945 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 19:02:47 +00:00
Frits van Bommel
7ac40c3ffa Teach SimplifyCFG to turn 
(indirectbr (select cond, blockaddress(@fn, BlockA),
                            blockaddress(@fn, BlockB)))
into
  (br cond, BlockA, BlockB).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120943 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 18:29:03 +00:00
Chris Lattner
9637d5b22e Teach X86ISelLowering that the second result of X86ISD::UMUL is a flags 
result.  This allows us to compile:

void *test12(long count) {
      return new int[count];
}

into:

test12:
	movl	$4, %ecx
	movq	%rdi, %rax
	mulq	%rcx
	movq	$-1, %rdi
	cmovnoq	%rax, %rdi
	jmp	__Znam                  ## TAILCALL

instead of:

test12:
	movl	$4, %ecx
	movq	%rdi, %rax
	mulq	%rcx
	seto	%cl
	testb	%cl, %cl
	movq	$-1, %rdi
	cmoveq	%rax, %rdi
	jmp	__Znam

Of course it would be even better if the regalloc inverted the cmov to 'cmovoq',
which would eliminate the need for the 'movq %rdi, %rax'.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120936 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 07:49:54 +00:00
Chris Lattner
b20e0b1fdd it turns out that when ".with.overflow" intrinsics were added to the X86 
backend that they were all implemented except umul.  This one fell back
to the default implementation that did a hi/lo multiply and compared the
top.  Fix this to check the overflow flag that the 'mul' instruction
sets, so we can avoid an explicit test.  Now we compile:

void *func(long count) {
      return new int[count];
}

into:

__Z4funcl:                              ## @_Z4funcl
	movl	$4, %ecx                ## encoding: [0xb9,0x04,0x00,0x00,0x00]
	movq	%rdi, %rax              ## encoding: [0x48,0x89,0xf8]
	mulq	%rcx                    ## encoding: [0x48,0xf7,0xe1]
	seto	%cl                     ## encoding: [0x0f,0x90,0xc1]
	testb	%cl, %cl                ## encoding: [0x84,0xc9]
	movq	$-1, %rdi               ## encoding: [0x48,0xc7,0xc7,0xff,0xff,0xff,0xff]
	cmoveq	%rax, %rdi              ## encoding: [0x48,0x0f,0x44,0xf8]
	jmp	__Znam                  ## TAILCALL

instead of:

__Z4funcl:                              ## @_Z4funcl
	movl	$4, %ecx                ## encoding: [0xb9,0x04,0x00,0x00,0x00]
	movq	%rdi, %rax              ## encoding: [0x48,0x89,0xf8]
	mulq	%rcx                    ## encoding: [0x48,0xf7,0xe1]
	testq	%rdx, %rdx              ## encoding: [0x48,0x85,0xd2]
	movq	$-1, %rdi               ## encoding: [0x48,0xc7,0xc7,0xff,0xff,0xff,0xff]
	cmoveq	%rax, %rdi              ## encoding: [0x48,0x0f,0x44,0xf8]
	jmp	__Znam                  ## TAILCALL

Other than the silly seto+test, this is using the o bit directly, so it's going in the right
direction.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120935 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 07:30:36 +00:00
Chris Lattner
96908b17ae generalize the previous check to handle -1 on either side of the 
select, inserting a not to compensate.  Add a missing isZero check
that I lost somehow.

This improves codegen of:

void *func(long count) {
      return new int[count];
}

from:

__Z4funcl:                              ## @_Z4funcl
	movl	$4, %ecx                ## encoding: [0xb9,0x04,0x00,0x00,0x00]
	movq	%rdi, %rax              ## encoding: [0x48,0x89,0xf8]
	mulq	%rcx                    ## encoding: [0x48,0xf7,0xe1]
	testq	%rdx, %rdx              ## encoding: [0x48,0x85,0xd2]
	movq	$-1, %rdi               ## encoding: [0x48,0xc7,0xc7,0xff,0xff,0xff,0xff]
	cmoveq	%rax, %rdi              ## encoding: [0x48,0x0f,0x44,0xf8]
	jmp	__Znam                  ## TAILCALL
                                        ## encoding: [0xeb,A]

to:

__Z4funcl:                              ## @_Z4funcl
	movl	$4, %ecx                ## encoding: [0xb9,0x04,0x00,0x00,0x00]
	movq	%rdi, %rax              ## encoding: [0x48,0x89,0xf8]
	mulq	%rcx                    ## encoding: [0x48,0xf7,0xe1]
	cmpq	$1, %rdx                ## encoding: [0x48,0x83,0xfa,0x01]
	sbbq	%rdi, %rdi              ## encoding: [0x48,0x19,0xff]
	notq	%rdi                    ## encoding: [0x48,0xf7,0xd7]
	orq	%rax, %rdi              ## encoding: [0x48,0x09,0xc7]
	jmp	__Znam                  ## TAILCALL
                                        ## encoding: [0xeb,A]



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120932 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 02:00:51 +00:00
Chris Lattner
a2b5600e61 Improve an integer select optimization in two ways: 
1. generalize 
    (select (x == 0), -1, 0) -> (sign_bit (x - 1))
to:
    (select (x == 0), -1, y) -> (sign_bit (x - 1)) | y

2. Handle the identical pattern that happens with !=:
   (select (x != 0), y, -1) -> (sign_bit (x - 1)) | y

cmov is often high latency and can't fold immediates or
memory operands.  For example for (x == 0) ? -1 : 1, before 
we got:

< 	testb	%sil, %sil
< 	movl	$-1, %ecx
< 	movl	$1, %eax
< 	cmovel	%ecx, %eax

now we get:

> 	cmpb	$1, %sil
> 	sbbl	%eax, %eax
> 	orl	$1, %eax




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120929 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-05 01:23:24 +00:00
Bill Wendling
d643486058 Initialize HasPOPCNT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120923 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-04 23:57:24 +00:00
Rafael Espindola
b4172fa729 Once the layout is done we don't need to keep updating which fragments are 
valid. Addresses will not change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120921 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-04 22:47:22 +00:00
Rafael Espindola
db74aeadcd Remember the contents of leb and dwarfline fragments when relaxing. This avoids 
having to evaluate the expression again when writing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120920 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-04 21:58:52 +00:00
Cameron Zwarich
2a7942926b Remove PHIElimination's private copy of SkipPHIsAndLabels. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120918 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-04 20:40:15 +00:00
Benjamin Kramer
1292c22645 Add patterns for the x86 popcnt instruction. 
- Also adds a new POPCNT subtarget feature that is currently enabled if the target
  supports SSE4.2 (nehalem) or SSE4A (barcelona).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120917 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-04 20:32:23 +00:00
Bill Wendling
a6091be84c Silence 'may be used uninitialized in this function' warnings. Static analysis 
may determine that they cannot be used uninitialized. But that might be a bit
too much for the compiler to determine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120916 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-04 20:20:34 +00:00