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Author SHA1 Message Date
Akira Hatanaka
77501e89a7 Test case for r132444. 
llvm-svn: 132445
 2011-06-02 00:25:53 +00:00
Akira Hatanaka
69ae562f33 Custom-lower FRAMEADDR. Patch by Sasa Stankovic. 
llvm-svn: 132444
 2011-06-02 00:24:44 +00:00
Eli Friedman
884a7d08b1 When marking a block as being unanalyzable, use "Clobber" on the terminator instead of the first instruction in the block. This is a bit of a hack; "Clobber" isn't really the right marking in the first place. memdep doesn't really have any way of properly expressing "unanalyzable" at the moment. Using it on the terminator is much less ambiguous than using it on an arbitrary instruction, though. 
In the given testcase, the "Clobber" was pointing to a load, and GVN was incorrectly assuming that meant that the "Clobber" load overlapped the load being analyzed (when they are actually unrelated).

The included testcase tests both this commit and r132434.

Part two of rdar://9429882.  (r132434 was mislabeled.)

llvm-svn: 132442
 2011-06-02 00:08:52 +00:00
Chad Rosier
945a780b4e Typos. 
llvm-svn: 132437
 2011-06-01 23:32:40 +00:00
Eli Friedman
37ed424905 In MemoryDependenceAnalysis::getNonLocalPointerDepFromBB, if a given block is is deemed unanalyzable (and we execute one of the "goto PredTranslationFailure" statements), make sure we don't put information about the predecessors of that block into the returned data structures; this can lead to, among other things, extraneous results (which will confuse passes using memdep). Fixes an assert in GVN compiling ruby. Part of rdar://problem/9521954 . 
Testcase coming up soon.

llvm-svn: 132434
 2011-06-01 23:16:53 +00:00
Devang Patel
03708bbb55 A DBG_VALUE that truncates a range does not start another dbg value range. 
llvm-svn: 132433
 2011-06-01 23:00:17 +00:00
Devang Patel
1a3058d727 Do not drop constant values when a variable's content is described using .debug_loc entries. 
llvm-svn: 132427
 2011-06-01 22:03:25 +00:00
Stuart Hastings
9a085fb9d8 Recommit 132404 with fixes. rdar://problem/5993888 
llvm-svn: 132424
 2011-06-01 21:33:14 +00:00
Eric Christopher
9fe91039e4 Allow bitcasts between valid types of the same size and vector 
types if the vector type is legal.

Fixes rdar://9306086

llvm-svn: 132420
 2011-06-01 19:55:10 +00:00
Stuart Hastings
4b33767382 Revert 132404 to appease a buildbot. rdar://problem/5993888 
llvm-svn: 132419
 2011-06-01 19:52:20 +00:00
Nadav Rotem
4b8e7afe7d Refactor LegalizeTypes: Erase LegalizeAction and make the type legalizer use 
the TargetLowering enum.

llvm-svn: 132418
 2011-06-01 19:47:10 +00:00
Andrew Trick
b92801a07e SCEV: missing null check fix for r132360, dragonegg crash. 
llvm-svn: 132416
 2011-06-01 19:14:56 +00:00
Jakob Stoklund Olesen
1e7aea1b5e Revert r132358 "Simplify the eviction policy by making the failsafe explicit." 
This commit caused regressions in i386 flops-[568], matrix, salsa20,
256.bzip2, and enc-md5.

llvm-svn: 132413
 2011-06-01 18:45:02 +00:00
Stuart Hastings
b75a0be551 Fix double FGETSIGN to work on x86_32; followup to 132396. 
rdar://problem/5660695

llvm-svn: 132411
 2011-06-01 18:32:25 +00:00
Eric Christopher
d0a9787775 Add a testcase, enabled only on arm, for llvm-gcc r132366. 
llvm-svn: 132409
 2011-06-01 18:23:56 +00:00
Stuart Hastings
cd336a4ee0 Cleanup test case. rdar://problem/5660695 
llvm-svn: 132408
 2011-06-01 18:23:14 +00:00
Benjamin Kramer
d6d9c33cca Initialize IssueWidth to zero. 
Fixes valgrind errors in the CellSPU backend.

llvm-svn: 132405
 2011-06-01 17:19:08 +00:00
Stuart Hastings
23f5ceda96 Add support for x86 CMPEQSS and friends. These instructions do a 
floating-point comparison, generate a mask of 0s or 1s, and generally
DTRT with NaNs.  Only profitable when the user wants a materialized 0
or 1 at runtime.  rdar://problem/5993888

llvm-svn: 132404
 2011-06-01 17:17:45 +00:00
Stuart Hastings
904f5d9bd7 Reapply 132348 with fixes. rdar://problem/6501862 
llvm-svn: 132402
 2011-06-01 16:42:47 +00:00
Stuart Hastings
d81819d57b A forthcoming SSE patch will break this test; since the test is also 
valid for x87, re-target to x87.  rdar://problem/5993888

llvm-svn: 132401
 2011-06-01 16:13:09 +00:00
Stuart Hastings
159bfd2d1c Test case for 132396. rdar://problem/5660695 
llvm-svn: 132399
 2011-06-01 15:50:29 +00:00
Jakob Stoklund Olesen
283a7e46b5 Fix PR10059 and future variations by handling all register subclasses. 
Add TargetRegisterInfo::hasSubClassEq and use it to check for compatible
register classes instead of trying to list all register classes in
X86's getLoadStoreRegOpcode.

llvm-svn: 132398
 2011-06-01 15:32:10 +00:00
Stuart Hastings
6309f11cc6 Turn on FGETSIGN for x86. Followup to 132388. rdar://problem/5660695 
llvm-svn: 132396
 2011-06-01 14:04:17 +00:00
Joerg Sonnenberger
ffa79cb359 Add new -d option to tblgen. It writes a make(1)-style dependency file. 
llvm-svn: 132395
 2011-06-01 13:10:15 +00:00
Nadav Rotem
111ad2f6ce This patch is another step in the direction of adding vector select. In this 
patch we add a flag to enable a new type legalization decision - to promote
integer elements in vectors. Currently, the rest of the codegen does not support
this kind of legalization.  This flag will be removed when the transition is
complete.

llvm-svn: 132394
 2011-06-01 12:51:46 +00:00
Stuart Hastings
fdc9e4af68 FGETSIGN support for x86, using movmskps/pd. Will be enabled with a 
patch to TargetLowering.cpp.  rdar://problem/5660695

llvm-svn: 132388
 2011-06-01 04:39:42 +00:00
Andrew Trick
fa54b35483 Add an issue width check to the postRA scheduler. Patch by Max Kazakov! 
For targets with no itinerary (x86) it is a nop by default. For
targets with issue width already expressed in the itinerary (ARM) it
bypasses a scoreboard check but otherwise does not affect the
schedule. It does make the code more consistent and complete and
allows new targets to specify their issue width in an arbitrary way.

llvm-svn: 132385
 2011-06-01 03:27:56 +00:00
John McCall
18921da759 First, do no harm -- even if we can't find a selector for an enclosing 
landing pad, forward llvm.eh.resume calls to it instead of turning them
invalidly into invokes.

llvm-svn: 132382
 2011-06-01 02:17:11 +00:00
Bill Wendling
a03522829c The ARM stuff already calls the Resume function, not the Resume_or_Rethrow. It 
turns out that it could cause an infinite loop in some situations. If this code
is triggered and it converts a cleanup into a catchall, but that cleanup was in
already in a cleanup, then the _Unwind_SjLj_Resume could infinite loop. I.e.,
the code doesn't consume the exception object and passes it on to
_Unwind_SjLj_Resume. But _USjLjR expects it to be consumed (since it's landing
at a catchall instead of a cleanup). So it uses the values that are presently
there, which are the values that tell it to jump to the fake landing pad.
<rdar://problem/9508402>

llvm-svn: 132381
 2011-06-01 01:49:35 +00:00
Devang Patel
4eab0639a4 Incomplete type may not have corresponding DIE, so do not check DIEEntry eagerly. 
llvm-svn: 132377
 2011-06-01 00:23:24 +00:00
Devang Patel
4077aa90ed Refactor. 
llvm-svn: 132373
 2011-05-31 23:30:30 +00:00
Devang Patel
a9f6a46390 Include global types, that are referenced through local variables, in debug_pubtypes list. 
llvm-svn: 132371
 2011-05-31 22:56:51 +00:00
Jakob Stoklund Olesen
1f27999aaa Ignore Vim swap files 
llvm-svn: 132365
 2011-05-31 21:54:28 +00:00
Galina Kistanova
5f12790662 Reverted r132135 per Xerxes request. These tests are passing for his setup. Requires more research. 
llvm-svn: 132364
 2011-05-31 21:50:33 +00:00
Andrew Trick
60ad58febd scev: Better sign-extend removal. Normalize postincrement recurrences 
so that their sign extended forms are congruent when no overflow occurs.

llvm-svn: 132360
 2011-05-31 21:17:47 +00:00
Jakob Stoklund Olesen
a1976f5898 Simplify the eviction policy by making the failsafe explicit. 
When assigned ranges are evicted, they are put in the RS_Evicted stage and are
not allowed to evict anything else. That prevents looping automatically.

When evicting ranges just to get a cheaper register, use only spill weights to
find the possible candidates. Avoid breaking hints for this purpose, it is not
worth it.

Start implementing more complex eviction heuristics, guarded by the temporary
-complex-eviction flag. The initial version permits a heavier range to be
evicted if it doesn't have any uses where the evicting range is live. This makes
it a good candidate for live ranfge splitting.

llvm-svn: 132358
 2011-05-31 21:02:44 +00:00
Eli Friedman
05fea3b4a2 llvm.memcpy.* has two distinct associated address spaces; the source address space, and the destination address space. Fix up the interface on MemIntrinsic and MemTransferInst to make this clear, and fix InstructionDereferencesPointer in LazyValueInfo.cpp to use the interface properly. 
llvm-svn: 132356
 2011-05-31 20:40:16 +00:00
Bruno Cardoso Lopes
9231127d37 Fix uninitialized variables and silence warnings 
llvm-svn: 132355
 2011-05-31 20:25:26 +00:00
Eli Friedman
3c6167ed29 Add a minor missing -verify check. Found by inspection. 
llvm-svn: 132353
 2011-05-31 20:12:07 +00:00
Nick Lewycky
d35075f814 Also remove -lLTO which should have been in r132349. I failed to apply this 
from David Meyer's patch!

llvm-svn: 132352
 2011-05-31 20:00:45 +00:00
Stuart Hastings
47cbd200e4 Revert to pacify a buildbot. rdar://problem/6501862 
llvm-svn: 132351
 2011-05-31 19:56:35 +00:00
Nick Lewycky
2e4a814868 Make the gold plugin build on Cygwin as well as Linux. Patch by David Meyer! 
llvm-svn: 132349
 2011-05-31 19:53:26 +00:00
Stuart Hastings
e226ec461c Followup to 132316; accept arbitrary constants, add with a constant, 
sub with a non-constant.  Fix comments, enlarge test case.
rdar://problem/6501862

llvm-svn: 132348
 2011-05-31 19:29:55 +00:00
Devang Patel
67a308861a Fix html formatting. 
llvm-svn: 132345
 2011-05-31 18:06:14 +00:00
Devang Patel
485b3d7ca4 Clarify documentation and remove guarantees that are not fulfilled. 
llvm-svn: 132344
 2011-05-31 17:45:27 +00:00
Richard Osborne
660fe84614 Fix 80 column violations. 
llvm-svn: 132341
 2011-05-31 16:30:33 +00:00
Richard Osborne
4293c93896 Add XCore intrinsic for crc8. 
llvm-svn: 132340
 2011-05-31 16:24:49 +00:00
Richard Osborne
34a4652dcd Add XCore intrinsic for crc32. 
llvm-svn: 132336
 2011-05-31 14:47:36 +00:00
Richard Osborne
d84d3d1068 Convert test to FileCheck. 
llvm-svn: 132335
 2011-05-31 14:00:05 +00:00
Argyrios Kyrtzidis
e9562b6cbc Introduce PackedVector, useful for storing a vector of values using a specific number of bits for each 
value. Both signed and unsigned types can be used, e.g

   PackedVector<signed, 2> vec;

will create a vector accepting values -2, -1, 0, 1. Any other value will hit an assertion.

llvm-svn: 132325
 2011-05-31 03:53:41 +00:00