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14303 Commits

Author SHA1 Message Date
Akira Hatanaka
8ddf6531b8 Drop support for Mips1 and Mips2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139405 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 20:45:50 +00:00
Nadav Rotem
8ffad56f8e Implement vector-select support for avx256. Refactor the vblend implementation to have tablegen match the instruction by the node type 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139400 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 20:29:17 +00:00
Jim Grosbach
468709e43d Thumb2 assembly parsing and encoding for MLA and MLS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139399 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 20:24:45 +00:00
Jim Grosbach
84d043a8b3 Thumb2 assembly parsing and encoding for MCR, MCR2, MCRR, MCRR2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139397 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 20:19:28 +00:00
Jim Grosbach
1e0fff17f3 Tidy up formatting a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139396 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 20:17:49 +00:00
Jim Grosbach
95102265a9 Thumb2 assembly parsing and encoding for LSL. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139395 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 20:05:38 +00:00
Jim Grosbach
d4b72de3e2 Thumb2 assembly parsing and encoding for LDRT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139393 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 20:02:15 +00:00
Jim Grosbach
56806c2997 Thumb2 assembly parsing and encoding for LDRSHT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139392 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 20:01:18 +00:00
Jim Grosbach
a315a99093 Thumb2 assembly parsing and encoding for LDRSH. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139391 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 19:54:30 +00:00
Jim Grosbach
578edfbfa0 Thumb2 assembly parsing and encoding for LDRSBT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139390 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 19:49:06 +00:00
Jim Grosbach
0811fe13d6 Thumb2 assembly parsing and encoding for LDRSB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139389 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 19:42:40 +00:00
Jim Grosbach
95d397c3b1 Thumb2 assembly parsing and encoding for LDRH. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139386 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 19:13:53 +00:00
Jim Grosbach
1efd9a0e8b Shuffle a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139385 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 19:09:54 +00:00
Akira Hatanaka
d199d0c59c Drop support for Allegrex. Allegrex implements a variant of Mips2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139383 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 19:00:51 +00:00
Jim Grosbach
b6aed508e3 Thumb2 assembly parsing and encoding for LDREX/LDREXB/LDREXD/LDREXH. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139381 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 18:37:27 +00:00
Jim Grosbach
e3a0adf162 Add FIXME. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139371 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 16:45:31 +00:00
Duncan Sands
73c8415d90 Mark the eh.typeid.for intrinsic as being 'const', which it is inside 
any given function.  As pointed out by John McCall, this is needed to
have redundant eh.typeid.for tests be eliminated in the presence of
cleanups.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139360 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 07:50:37 +00:00
Craig Topper
d3be6ecafe Add disassembler test for Intel syntax. Tests r139353. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139356 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 06:35:44 +00:00
Akira Hatanaka
ad5f0c9e73 Change default target architecture from Mips1 to Mips32r1 in preparation for 
removing support for Mips1 and Mips2. 

This change and the ones that follow have been discussed with and approved by
Bruno.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139344 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-09 01:13:27 +00:00
Devang Patel
9aee335c23 Directly point debug info to the stack slot of the arugment, instead of trying to keep track of vreg in which it the arugment is copied. The LiveDebugVariable can keep track of variable's ranges. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139330 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-08 22:59:09 +00:00
Owen Anderson
d2fc31b3f7 Soft fail CBZ/CBNZ in the disassembler if they appear inside an IT block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139328 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-08 22:42:49 +00:00
Jim Grosbach
a77295db19 Thumb2 assembly parsing and encoding for LDRD(immediate). 
Refactor operand handling for STRD as well. Tests for that forthcoming.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139322 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-08 22:07:06 +00:00
Bruno Cardoso Lopes
7ec8fb8830 Add a AVX version of a simple i64 -> f64 bitcast. This could be 
triggered using llc with -O0, which wouldn't let it be folded and
expose the lack of this pattern.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139320 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-08 21:52:33 +00:00
Bruno Cardoso Lopes
7cf79a88c8 Reapply testcase from r139309! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139318 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-08 21:05:43 +00:00
Kevin Enderby
5afc19002e Fix a Darwin x86_64 special case of a jmp to a temporary symbol from an atom 
without a base symbol that must not have a relocation entry.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139316 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-08 20:53:44 +00:00
Bruno Cardoso Lopes
caa60f15e4 Remove this crashing test, until I figure out what's going wrong here 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139309 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-08 18:32:36 +00:00
Bruno Cardoso Lopes
814c6ced85 Add AVX versions of blend vector operations and fix some issues noticed 
in Nadav's r139285 and r139287 commits.

1) Rename vsel.ll to a more descriptive name
2) Change the order of BLEND operands to "Op1, Op2, Cond", this is
necessary because PBLENDVB is already used in different places with
this order, and it was being emitted in the wrong way for vselect
3) Add AVX patterns and tests for the same SSE41 instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139305 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-08 18:05:08 +00:00
Bruno Cardoso Lopes
7db2d3a504 Fix PR10844: Add patterns to cover non foldable versions of X86vzmovl. 
Triggered using llc -O0. Also fix some SET0PS patterns to their AVX
forms and test it on the testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139304 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-08 18:05:02 +00:00
Jim Grosbach
9ea33b0c03 Add tests for Thumb2 LDRB indexed addressing w/ writeback. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139292 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-08 16:49:36 +00:00
Nadav Rotem
4b36e07487 This test is already covered by llvm/trunk/test/CodeGen/X86/vsel.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139288 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-08 08:43:23 +00:00
Nadav Rotem
cbdd2d10ba add a testcase for the previous patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139287 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-08 08:31:31 +00:00
Nadav Rotem
ffe3e7da84 Add X86-SSE4 codegen support for vector-select. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139285 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-08 08:11:19 +00:00
Eli Friedman
81ac8ddc67 Fix the logic in BasicAliasAnalysis::aliasGEP for comparing GEP's with variable differences so that it actually does something sane. Fixes PR10881. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139276 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-08 02:23:31 +00:00
Jim Grosbach
e64fb28da1 Thumb2 assembly parsing and encoding for LDR post-indexed. 
More cleanup of the general indexed addressing T2 instructions. Still more to
do, especially for stores.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139272 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-08 01:01:32 +00:00
Jim Grosbach
eeec025cf5 Thumb2 assembly parsing and encoding for LDR pre-indexed w/ writeback. 
Adjust encoding of writeback load/store instructions to better reflect the
way the operand types are represented.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139270 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-08 00:39:19 +00:00
Jim Grosbach
f0eee6eca8 Thumb2 assembly parsing and encoding for LDRBT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139267 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 23:39:14 +00:00
Jim Grosbach
489c693f65 Thumb2 assembly parsing and encoding for LDRB(register). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139266 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 23:17:00 +00:00
Jim Grosbach
ab899c1bcc Thumb2 assembly parsing and encoding for LDR(register). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139264 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 23:10:15 +00:00
Jim Grosbach
8bb5a861a0 Thumb2 assembly parsing and encoding for LDRB(immediate). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139258 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 21:41:25 +00:00
Jim Grosbach
1aedfb47f9 Thumb2 assembly parsing and encoding for LDR(literal). 
Need branch relocation support to distinguish this encoding from the
16-bit Thumb1 encoding w/o the explicit .w suffix. That comes later, though.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139257 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 21:33:16 +00:00
Owen Anderson
8a83f71301 Create Thumb2 versions of STC/LDC, and reenable the relevant tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139256 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 21:10:42 +00:00
Jim Grosbach
ed1cb6defa Add tests for Thumb2 LDR(immediate) from r139254. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139255 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 21:06:46 +00:00
Jim Grosbach
94f914e3fd Thumb2 parsing and encoding for LDMDB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139251 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 19:57:53 +00:00
James Molloy
a5d5856854 Second of a three-patch series aiming to fix MSR/MRS on Cortex-M. This adds predicate checking to the Disassembler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139250 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 19:42:28 +00:00
Eli Friedman
d5ccb0558f Fix atomic load and store on x86 to pass -verify-machineinstrs (and possibly fix some subtle bugs involving passes which check mayStore()). 
This isn't exactly ideal, but it is good enough for the moment.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139245 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 18:48:32 +00:00
Jim Grosbach
90502888f2 Update test for 139243 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139244 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 18:40:06 +00:00
Jim Grosbach
76ecc3d35b Thumb2 parsing and encoding for LDMIA. 
Choose 32-bit vs. 16-bit encoding when there's no .w suffix in post-processing
as match classes are insufficient to handle the context-sensitiveness of
the writeback operand's legality for the 16-bit encodings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139242 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 18:05:34 +00:00
Owen Anderson
6de3c6f1a9 Port more assembler tests over to disassembler tests, and fix a minor logic error that exposed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139240 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 17:55:19 +00:00
Duncan Sands
758ba1f4ed When inlining exception handling code into another function, ensure that 
duplicate tests are eliminated (for example if the two functions both have
a catch clause catching the same type, ensure the redundant one is removed).
Note that it would probably be safe to say that eh.typeid.for is 'const',
but since two calls to it with the same argument can give different results
(but only if the calls are in different functions), it seems more correct to
mark it only 'pure'; this doesn't get in the way of the optimization.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139236 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 16:44:14 +00:00
Duncan Sands
68b859f757 Another forgotten trampoline testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139230 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 10:05:14 +00:00
Duncan Sands
e8e721f0c2 Forgot to add this trampoline testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139229 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 09:21:38 +00:00
Eli Friedman
981a010c09 Relax the MemOperands on atomics a bit. Fixes -verify-machineinstrs failures for atomic laod/store on ARM. 
(The fix for the related failures on x86 is going to be nastier because we actually need Acquire memoperands attached to the atomic load instrs, etc.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139221 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 02:23:42 +00:00
Devang Patel
541a81cc2b While sinking machine instructions, sink matching DBG_VALUEs also otherwise live debug variable pass will drop DBG_VALUEs on the floor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139208 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-07 00:07:58 +00:00
Owen Anderson
69acc93b3d Teach BasicAA about the aliasing properties of memset_pattern16. 
Fixes PR10872 and <rdar://problem/10065079>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139204 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 23:33:25 +00:00
Jim Grosbach
aa833e53dc Thumb2 parsing and encoding for ISB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139200 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 22:53:27 +00:00
Jim Grosbach
8f6d8104fc Thumb2 parsing and encoding for EOR. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139199 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 22:44:50 +00:00
Jim Grosbach
94d1c489a5 Thumb2 parsing and encoding for DSB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139194 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 22:19:40 +00:00
Jim Grosbach
06c1a51241 Thumb2 parsing and encoding for DMB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139193 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 22:14:58 +00:00
Nick Lewycky
756a0a1f39 Disable these tests harder. They're XFAIL'd, but that means they still run, and 
these tests all infinitely recurse, bringing my system down into swapping hell.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139192 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 22:08:18 +00:00
Jim Grosbach
77951908b7 Thumb2 parsing and encoding for DBG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139191 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 22:06:40 +00:00
Jim Grosbach
ef88a92677 Thumb2 parsing and encoding for CMN and CMP. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139188 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 21:44:58 +00:00
Nick Lewycky
c103a08a11 This transform only handles two-operand AddRec's. Prevent it from trying to 
handle anything more complex. Fixes PR10383 again!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139186 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 21:42:18 +00:00
Jim Grosbach
0b533a3bd3 Thumb2 parsing and encoding for CLZ. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139177 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 20:44:17 +00:00
Jim Grosbach
ad2dad930d Thumb2 parsing and encoding for CLREX. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139172 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 20:27:04 +00:00
Owen Anderson
39950595f7 Port more encoding tests over to Thumb2 decoding tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139171 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 20:26:34 +00:00
Jim Grosbach
79d56a66c3 Thumb2 parsing and encoding for CDP/CDP2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139168 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 20:12:23 +00:00
Evan Cheng
4a51708448 Fix fall outs from my recent change on how carry bit is modeled during isel. 
Now the 'S' instructions, e.g. ADDS, treat S bit as optional operand as well.
Also fix isel hook to correctly set the optional operand.
rdar://10073745


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139157 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 18:52:20 +00:00
Owen Anderson
81856f7313 Try again at r138809 (make DSE more aggressive in removing dead stores at the end of a function), now with less deleting stores before memcpy's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139150 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 18:14:09 +00:00
Jakob Stoklund Olesen
9b0e1e7a5b Atomic pseudos don't use (as in read) CPSR. They clobber it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139148 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 17:40:35 +00:00
Duncan Sands
4a544a79bd Split the init.trampoline intrinsic, which currently combines GCC's 
init.trampoline and adjust.trampoline intrinsics, into two intrinsics
like in GCC.  While having one combined intrinsic is tempting, it is
not natural because typically the trampoline initialization needs to
be done in one function, and the result of adjust trampoline is needed
in a different (nested) function.  To get around this llvm-gcc hacks the
nested function lowering code to insert an additional parent variable
holding the adjust.trampoline result that can be accessed from the child
function.  Dragonegg doesn't have the luxury of tweaking GCC code, so it
stored the result of adjust.trampoline in the memory GCC set aside for
the trampoline itself (this is always available in the child function),
and set up some new memory (using an alloca) to hold the trampoline.
Unfortunately this breaks Go which allocates trampoline memory on the
heap and wants to use it even after the parent has exited (!).  Rather
than doing even more hacks to get Go working, it seemed best to just use
two intrinsics like in GCC.  Patch mostly by Sanjoy Das.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139140 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 13:37:06 +00:00
Nick Lewycky
fa151a79ed The logic inside getMulExpr to simplify {a,+,b}*{c,+,d} was wrong, which was 
visible given a=b=c=d=1, on iteration #1 (the second iteration). Replace it with
correct math. Fixes PR10383!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139133 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 05:05:14 +00:00
Nick Lewycky
b2840fdcd8 Revert r139126 due to selfhost failures reported by buildbots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139130 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 02:43:13 +00:00
Nick Lewycky
77b7352db0 Teach SCEV to report a max backedge count in one interesting case in 
HowFarToZero; the case for a canonical loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139126 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-05 23:25:16 +00:00
Benjamin Kramer
ae707bd559 InstSimplify: Don't try to replace an extractvalue/insertvalue pair with the original value if types don't match. 
Fixes clang selfhost.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139120 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-05 18:16:19 +00:00
Duncan Sands
ad99ef8bf5 Delete trivial landing pads that just continue unwinding the caught 
exception.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139117 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-05 12:57:57 +00:00
Duncan Sands
dabc280672 Add some simple insertvalue simplifications, for the purpose of cleaning 
up do-nothing exception handling code produced by dragonegg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139113 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-05 06:52:48 +00:00
Dan Gohman
b116142d3b Revert r129875, XFAILing this test for arm, since the fix was reverted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139058 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 00:14:24 +00:00
Jakob Stoklund Olesen
5047d76575 Pseudo CMOV instructions don't clobber EFLAGS. 
The explanation about a 0 argument being materialized as xor is no
longer valid.  Rematerialization will check if EFLAGS is live before
clobbering it.

The code produced by X86TargetLowering::EmitLoweredSelect does not
clobber EFLAGS.

This causes one less testb instruction to be generated in the cmov.ll
test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139057 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 23:52:55 +00:00
Jim Grosbach
83452b2064 Thumb2 parsing and encoding for CBZ/CBNZ. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139054 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 23:46:10 +00:00
Jim Grosbach
6c3e11ea55 Thumb2 parsing and encoding for BXJ. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139053 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 23:43:09 +00:00
Jim Grosbach
cefd2020a6 Thumb2 parsing and encoding for BIC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139052 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 23:37:54 +00:00
Jim Grosbach
0b9a3d37c5 Thumb2 parsing and encoding for BFI. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139051 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 23:28:46 +00:00
Jim Grosbach
7413f41d3b Thumb2 parsing and encoding for BFC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139050 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 23:25:46 +00:00
Jim Grosbach
a110988b39 Thumb2 parsing and encoding of B instruction. 
Tweak handling of IT blocks a bit to enable this. The differentiation between
B and Bcc needs special sauce.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139049 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 23:22:08 +00:00
Bill Wendling
47e208bbea Try to eliminate the use of the 'unwind' instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139046 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 22:41:11 +00:00
Eli Friedman
4136d23c48 Don't fast-isel for atomic load/store; some cases require extra handling missing from fast-isel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139044 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 22:33:24 +00:00
Jim Grosbach
5f25fb01b4 Thumb2 parsing and encoding for ASR. 
For other shift and rotate instructions, too. Tests for those forthcoming
as I work my way through the ISA.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139040 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 21:28:54 +00:00
Bill Wendling
d5941195e2 Better fix for this testcase. Update it to the new EH scheme entirely. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139039 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 21:27:08 +00:00
Bill Wendling
cc6927b9e1 Update for new EH stuff. (I'm not sure if this is 100% correct.) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139038 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 21:24:17 +00:00
Andrew Trick
6984625d16 Test case update for unroll-scev. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139037 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 21:21:03 +00:00
Kevin Enderby
d5705fe50d Change X86 disassembly to print immediates values as signed by default. Special 
case those instructions that the immediate is not sign-extend.  radr://8795217


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139028 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 20:01:23 +00:00
Jim Grosbach
5c1ac55542 Thumb2 parsing and encoding for AND (register). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139021 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 18:41:35 +00:00
Jim Grosbach
f0851e5d95 Thumb2 parsing and encoding for ADD (register). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139017 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 18:14:46 +00:00
Duncan Sands
147272b8a7 Darwin wants ctors/dtors to be ordered the other way round to linux. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139015 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 18:07:19 +00:00
Kevin Enderby
98f213cd60 Fix the disassembly of the X86 "crc32w %ax, %eax" instruction. Bug 10702. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139014 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 18:03:03 +00:00
Jim Grosbach
ca52a7e38c Tests for Thumb2 AND (immediate) instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139013 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 17:44:27 +00:00
Jakub Staszak
9469d5cf48 Extra CHECK-NOT to make sure that GVN transform works properly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139012 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 17:40:39 +00:00
Andrew Trick
dc07321164 -unroll-scev flag removal 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139010 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 17:36:14 +00:00
Jim Grosbach
aca878c5e6 Add FIXME. Thumb2 ADR encoding choice is non-trivial. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139008 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 17:21:59 +00:00
Jakub Staszak
4c6b8bee2a ConstantVector returns arbitrary value for the wrong index. 
This fixes PR10813.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139006 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 15:43:43 +00:00
Jakub Staszak
8cec759339 Compare type size instead of type _store_ size to make sure that BitCastInst 
will be valid. This fixes PR10820.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139005 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 14:57:37 +00:00
Kalle Raiskila
989621f1f8 Pass signed (not unsigned) 10 bit field to SPU 'ori' instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139004 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 10:05:01 +00:00
Craig Topper
5ffedb9352 Make IC_VEX* not inherit from IC_*. Prevents instructions with no VEX form from disassembling to their non-VEX form. Also prevents weak filter collisons that were keeping valid VEX instructions from decoding properly. Make VEX_L* not inherit from VEX_* because the VEX.L bit always important. This stops packed int VEX encodings from being disassembled when specified with VEX.L=1. Fixes PR10831 and PR10806. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138997 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 04:17:54 +00:00
Bill Wendling
b0b9a67f98 Update to new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138989 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 01:25:11 +00:00
Dan Gohman
6b13cd4154 Revert r131152, r129796, r129761. This code is currently considered 
to be unreliable on platforms which require memcpy calls, and it is
complicating broader legalize cleanups. It is hoped that these cleanups
will make memcpy byval easier to implement in the future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138977 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 23:07:08 +00:00
Benjamin Kramer
36a16015ac Don't drop alignment info on local common symbols. 
- On COFF the .lcomm directive has an alignment argument.
- On ELF we fall back to .local + .comm

Based on a patch by NAKAMURA Takumi.

Fixes PR9337, PR9483 and PR10128.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138976 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 23:04:27 +00:00
Eli Friedman
770e16fe17 Fix test; sorry for any inconvenience. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138966 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 21:25:42 +00:00
Eli Friedman
86b5db8c01 Fix an issue with the IR sink pass found by inspection. (I'm not sure anyone is actually using this, but might as well fix it since I found the issue.) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138965 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 21:21:24 +00:00
Eli Friedman
89e0f4b5b0 Add missing newline. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138964 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 21:20:11 +00:00
Benjamin Kramer
bcf47a5bce XFAIL this test on arm until the backend is fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138955 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 18:40:03 +00:00
Benjamin Kramer
d4f27d7daa This test depends on cmov being available. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138954 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 18:40:01 +00:00
Jakob Stoklund Olesen
4a0a18af4a Permit remat of partial register defs when it is safe. 
An instruction may define part of a register where the other bits are
undefined. In that case, it is safe to rematerialize the instruction.
For example:

  %vreg2:ssub_0<def> = VLDRS <cp#0>, 0, pred:14, pred:%noreg, %vreg2<imp-def>

The extra <imp-def> operand indicates that the instruction does not read
the other parts of the virtual register, so a remat is safe.

This patch simply allows multiple def operands for the virtual register.
It is MI->readsVirtualRegister() that determines if we depend on a
previous value so remat is impossible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138953 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 18:27:51 +00:00
Jim Grosbach
2f25d9b933 ARM 'rscs' mnemonic is carry-setting 'rsc', not 'rs' with a 'cs' condition code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138952 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 18:22:13 +00:00
Bruno Cardoso Lopes
a39ccdb9d4 Fix vbroadcast matching logic to early unmatch if the node doesn't have 
only one use. Fix PR10825.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138951 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 18:15:06 +00:00
Owen Anderson
7f17b5a483 t2Bcc is allowed to have a predicate without a preceding IT instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138946 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 17:47:45 +00:00
Jakob Stoklund Olesen
9d548d0343 Prevent remat of partial register redefinitions. 
An instruction that redefines only part of a larger register can never
be rematerialized since the virtual register value depends on the old
value in other parts of the register.

This was fixed for the inline spiller in r138794.  This patch fixes the
problem for all register allocators, and includes a small test case.

<rdar://problem/10032939>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138944 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 17:18:50 +00:00
Bill Wendling
00c30d58a5 Update to new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138933 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 01:28:25 +00:00
Bill Wendling
65088e7d96 Update to new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138928 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 01:08:21 +00:00
Bill Wendling
15db556b56 Update to new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138927 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 01:02:41 +00:00
Bill Wendling
aeaa9a8b25 Update some tests to the new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138925 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 00:58:03 +00:00
Andrew Trick
340d78f4e7 PreRA scheduler should avoid cloning compares. 
Added canClobberReachingPhysRegUse() to handle a particular pattern in
which a two-address instruction could be forced to interfere with
EFLAGS, causing a compare to be unnecessarilly cloned.
Fixes rdar://problem/5875261


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138924 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 00:54:31 +00:00
Jim Grosbach
20ed2e7939 Thumb2 assembly parsing and encoding for ADD(immediate). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138922 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 00:28:52 +00:00
Bill Wendling
b5d92d83b4 Reenable test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138916 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 23:08:05 +00:00
Bill Wendling
3b5e99d79e Revert accidental commit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138915 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 23:07:46 +00:00
Eli Friedman
1b73866505 Disable this test until Bill fixes it properly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138914 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 23:03:30 +00:00
Bill Wendling
08c2862540 Update to new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138908 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:50:07 +00:00
Bill Wendling
a29a6b9a6c Update to new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138906 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:44:24 +00:00
Bill Wendling
78ae1f7947 Remove old declare statements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138905 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:41:20 +00:00
Bill Wendling
6b94b67319 Update more tests to the new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138904 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:40:15 +00:00
Bill Wendling
935903191f Update more tests to the new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138903 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:39:05 +00:00
Eli Friedman
24adac8b79 Add tests for the transformations SCCP can do on atomic loads and stores (which are safe without any modifications). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138902 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:37:06 +00:00
Bill Wendling
fd245d97f1 Revert r138894. This was failing on cmake-clang-i686-msvc10. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138900 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:20:25 +00:00
Bill Wendling
ab98f9d155 Update more tests to the new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138894 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:04:11 +00:00
Bill Wendling
b072dd9ba4 Update the tests to the new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138891 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 20:55:40 +00:00
Owen Anderson
721cb1fde0 Fix encoding for tBcc with immediate offset operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138889 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 20:26:14 +00:00
Jim Grosbach
e0e42bf0bb Run the Thumb1 parser tests in Thumb2 mode, as well. 
Thumb2 is a superset of Thumb1, so all of the encodings should still work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138883 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 19:50:28 +00:00
Jim Grosbach
d82175c1f0 Thumb NOP encoding varies depending on ARCH revision. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138876 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 18:35:46 +00:00
Owen Anderson
559c277aa9 Fix roundtripping of Thumb BL/BLX instructions with immediate offsets instead of labels. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138874 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 18:30:20 +00:00
Eli Friedman
ba567d670d Generic expansion for atomic load/store into cmpxchg/atomicrmw xchg; implements 64-bit atomic load/store for ARM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138872 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 18:26:09 +00:00
Jim Grosbach
72335d55d9 Thumb2 parsing and encoding for ADC(register). 
Also add instruction aliases for non-.w versions of SBC since they're the
same.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138871 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 18:23:08 +00:00
Eli Friedman
4d3f329453 64-bit atomic cmpxchg for ARM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138868 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 17:52:22 +00:00
David Greene
d92e2e4f88 Compress Repeated Byte Output 
Emit a repeated sequence of bytes using .zero.  This saves an enormous
amount of asm file space for certain programs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138864 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 17:30:56 +00:00
Jim Grosbach
0f3abd8d68 Tweak Thumb1 ADD encoding selection a bit. 
When the destination register of an add immediate instruction is
explicitly specified, encoding T1 is preferred, else encoding T2 is
preferred.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138862 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 17:07:33 +00:00
Benjamin Kramer
31d27ce568 This test requires sse, otherwise x87 ops will block tailcall optimization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138859 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 16:49:05 +00:00
Bruno Cardoso Lopes
57d6a5e491 - Move all MOVSS and MOVSD patterns close to their definitions 
- Duplicate some store patterns to their AVX forms!
- Catched a bug while restricting the patterns subtarget, fix it
  and update a testcase to check it properly

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138851 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 03:04:20 +00:00
Evan Cheng
0899f5c62d Fix (movhps load) lowering / pattern to match more cases. rdar://10050549 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138848 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 02:05:24 +00:00
Eli Friedman
3d93861c23 Some minor cleanups for r138845. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138846 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 00:41:05 +00:00
Eli Friedman
2bdffe4882 Some 64-bit atomic operations on ARM. 64-bit cmpxchg coming next. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138845 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 00:31:29 +00:00
Benjamin Kramer
8f00ffce50 Fix test typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138843 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 00:02:59 +00:00
Rafael Espindola
f940a1a869 Remove the old tail duplication pass. It is not used and is unable to update 
ssa, so it has to be run really early in the pipeline. Any replacement
should probably use the SSAUpdater.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138841 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 23:03:45 +00:00