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Author SHA1 Message Date
Dan Gohman
52668c9a30 When the definition of an address value is in a different block 
from the user of the address, fall back to just using the
address in a register instead of bailing out of fast-isel
altogether.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118917 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 19:14:00 +00:00
Chris Lattner
269f10b316 accept lret as an alias for lretl, fixing the reopened part of PR8592 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118916 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 18:54:56 +00:00
Rafael Espindola
bac0ad9eda Remove what looks like dead code in the production of debug lines. 
We only produce debug line information if we have seen a line directive, so
this code is dead. Also, if we want to be bug by bug compatible with
gas and sometimes produce "empty" .debug_line sections, this will
match the content produced by gas.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118914 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 18:41:26 +00:00
Andrew Trick
f06202f8e8 typo (4th checkin for one fix) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118913 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 18:36:03 +00:00
Andrew Trick
11f20edcf9 Emacs auto-fill bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118908 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 18:17:46 +00:00
Jim Grosbach
d75c3f136b Fill in the default predication bits for ARM unconditional branch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118907 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 18:13:26 +00:00
Andrew Trick
4252ffdef6 Test case for PR8287: SD scheduling time. Fixed in r118904. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118906 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 17:57:22 +00:00
Jim Grosbach
80f9e6724f Encoding for ARM LDRSB instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118905 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 17:52:59 +00:00
Andrew Trick
de91f3c5eb Fixes PR8287: SD scheduling time. The fix is a failsafe that prevents 
catastrophic compilation time in the event of unreasonable LLVM
IR. Code quality is a separate issue--someone upstream needs to do a
better job of reducing to llvm.memcpy. If the situation can be reproduced with
any supported frontend, then it will be a separate bug.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118904 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 17:50:46 +00:00
Chris Lattner
6b5e3978e3 implement PR8592: empirically "lretq" is a "lret" with a rex.w prefix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118903 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 17:41:20 +00:00
Chris Lattner
a29aae7aca tidy up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118896 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 17:24:29 +00:00
Rafael Espindola
d4a352609f gnu as support both % and @ before types, do the same. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118893 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 15:47:08 +00:00
Dan Gohman
c9d8a75e44 Re-disable TBAA for now; it broke MultiSource/Applications/JM/lencod, 
at least.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118890 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 11:21:08 +00:00
Kalle Raiskila
7ea1ab5f41 Fix memory access lowering on SPU, adding 
support for the case where alignment<value size.

These cases were silently miscompiled before this patch.
Now they are overly verbose -especially storing is- and
any front-end should still avoid misaligned memory 
accesses as much as possible. The bit juggling algorithm
added here probably has some room for improvement still.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118889 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 10:14:03 +00:00
Eric Christopher
d0c82a683e Fix up a few more spots of addrmode2 (or not) changes that were 
missed. Update some comments accordingly.

Fixes rdar://8652289


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118888 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 09:48:30 +00:00
Dan Gohman
b238536ada Enable TBAA. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118884 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 06:20:01 +00:00
Lang Hames
5e77f4b1d2 Fix some style issues in PBQP. Patch by David Blaikie. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118883 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 05:47:21 +00:00
Dan Gohman
720a2ed6d9 Enhance DSE to handle the case where a free call makes more than 
one store dead. This is especially noticeable in
SingleSource/Benchmarks/Shootout/objinst.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118875 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 02:19:17 +00:00
Dan Gohman
02df7e90cf Filecheckize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118874 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 02:02:39 +00:00
Dale Johannesen
0e03456a65 Remove possibly useful info from comment, per Chris. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118865 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 00:43:18 +00:00
Bruno Cardoso Lopes
7d5652dcd5 Enable mips32 mul instruction. Patch by Akira Hatanaka <ahatanaka@mips.com> 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118864 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 00:38:32 +00:00
Chris Lattner
97928d136a describe the preferred approach to silencing 'unused variable warnings' due to asserts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118863 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 00:19:41 +00:00
Chris Lattner
ccb5c677c6 add operand iterator apis to MachineInstr, patch by ether zhhb. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118862 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 00:00:21 +00:00
Jim Grosbach
e50e6bcd90 Start of support for binary emit of 16-it Thumb instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118859 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 23:41:09 +00:00
Owen Anderson
8f14391314 Fill out support for Thumb2 encodings of NEON instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118854 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 23:12:55 +00:00
Wesley Peck
48bcda4dd6 The BRK instruction in the MicroBlaze is a branch-and-link. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118848 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 22:21:08 +00:00
Nick Lewycky
67b6464377 Doxygenify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118846 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 21:51:44 +00:00
Dan Gohman
6d8eb156e6 Add helper functions for computing the Location of load, store, 
and vaarg instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118845 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 21:50:19 +00:00
Wesley Peck
ef5b390263 Fix tblgen instruction errors exposed by MC asm parser tests 
Fix minimum 16-bit signed value error exposed by MC asm parser tests
Add initial MC asm parser tests for the MBlaze backend


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118844 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 21:40:53 +00:00
Owen Anderson
57dac88f77 Add correct Thumb2 encodings for NEON vst[1,2,3,4] and vld[1,2,3,4]. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118843 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 21:36:43 +00:00
Dan Gohman
888cbda188 Don't forget the TBAA info, if available. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118842 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 21:27:26 +00:00
Dan Gohman
4d70a29490 Factor out Instruction::isSafeToSpeculativelyExecute's code for 
testing for dereferenceable pointers into a helper function,
isDereferenceablePointer.  Teach it how to reason about GEPs
with simple non-zero indices.

Also eliminate ArgumentPromtion's IsAlwaysValidPointer,
which didn't check for weak externals or out of range gep
indices.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118840 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 21:23:25 +00:00
Owen Anderson
410cb57524 Flesh out tests for Thumb2 encodings of NEON instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118837 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 21:15:47 +00:00
Dan Gohman
32d1fe52e2 Delete unneeded ssp attributes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118836 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 21:08:46 +00:00
Eric Christopher
79ab2fe01a Revert the accidental commit I made reverting the previous commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118835 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 20:50:14 +00:00
Jim Grosbach
3c3849297b Trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118831 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 20:16:23 +00:00
Jim Grosbach
d1d5a39cad ARM fixup encoding for direct call instructions (BL). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118829 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 20:05:40 +00:00
Eric Christopher
6c50119ba3 Revert this temporarily. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118827 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 19:47:02 +00:00
Eric Christopher
391f228e7e Change the prologue and epilogue to use push/pop for the low ARM registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118823 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 19:26:03 +00:00
Dan Gohman
f3b8c76599 Avoid calling alias on non-pointer values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118822 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 19:23:51 +00:00
Owen Anderson
c7139a6f0d Add support for Thumb2 encodings of NEON data processing instructions, using the new PostEncoderMethod infrastructure. 
More tests to come.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118819 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 19:07:48 +00:00
Rafael Espindola
e1a2587ee2 Mark labels declared in tls sections as STT_TLS. This matches the behavior of 
gas.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118818 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 19:04:55 +00:00
Wesley Peck
60f923c5e2 Fixed some bugs in MBlaze asm parser that were introduced when removing OwningPtrs from the code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118807 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 18:41:33 +00:00
Chris Lattner
af510f16ec add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118806 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 18:23:57 +00:00
Rafael Espindola
2ff9e83a82 Initial comdat implementation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118805 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 18:13:52 +00:00
Dan Gohman
56653f0df8 TBAA-enable ArgumentPromotion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118804 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 18:09:32 +00:00
Dan Gohman
fca0b106f7 Add a FIXME comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118803 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 18:08:43 +00:00
Jim Grosbach
c466b937db Encoding of destination fixup for ARM branch and conditional branch 
instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118801 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 18:04:49 +00:00
Andrew Trick
8a83d54528 Check TRI->getReservedRegs because other allocators do it. Even though 
it makes no sense for allocation_order iterators to visit reserved regs.
The inline spiller depends on AliasAnalysis.
Manage the Query state to avoid uninitialized or stale results.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118800 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 17:46:29 +00:00
Dan Gohman
8e78cc4e13 Add comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118799 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 17:33:39 +00:00