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13182 Commits

Author SHA1 Message Date
Dan Gohman
9a9d218ed0 Revert r131781 again. Apparently there is more going on here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132625 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-04 05:11:22 +00:00
Jakob Stoklund Olesen
1de99829b6 Teach TableGen to evaluate DAG expressions as set operations. 
A TableGen backend can define how certain classes can be expanded into
ordered sets of defs, typically by evaluating a specific field in the
record. The SetTheory class can then evaluate DAG expressions that refer
to these named sets.

A number of standard set and list operations are predefined, and the
backend can add more specialized operators if needed. The -print-sets
backend is used by SetTheory.td to provide examples.

This is intended to simplify how register classes are defined:

  def GR32_NOSP : RegisterClass<"X86", [i32], 32, (sub GR32, ESP)>;

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132621 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-04 04:11:37 +00:00
Dan Gohman
c122c625ce Reapply r131781 (revert r131809), now that some BasicAA shortcomings 
it exposed are fixed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132611 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-04 00:46:31 +00:00
Dan Gohman
1fc18d71de Fix BasicAA's recursion detection so that it doesn't pessimize 
queries in the case of a DAG, where a query reaches a node
visited earlier, but it's not on a cycle. This avoids
MayAlias results in cases where BasicAA is expected to
return MustAlias or PartialAlias in order to protect TBAA.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132609 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-04 00:31:50 +00:00
Stuart Hastings
865f09334f Reapply 132424 with fixes. This fixes PR10068. 
rdar://problem/5993888


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132606 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-03 23:53:54 +00:00
Jakob Stoklund Olesen
2e3e720d76 Fix some tests that depend on register allocation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132602 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-03 22:45:21 +00:00
Eric Christopher
ec281c8934 Another possible bug. Stopgap until we can autogenerate tables and 
constraint lengths.

Part of rdar://9037836 and rdar://9119939



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132598 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-03 22:09:12 +00:00
Eric Christopher
ce8671c612 Testcase for llvm-gcc commit r132591. 
Part of rdar://9037836 and rdar://9119939


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132592 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-03 20:56:31 +00:00
Eric Christopher
ce1ecf59c8 Fix an off by one error. 
Part of rdar://9037836 and rdar://9119939


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132590 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-03 20:44:52 +00:00
Bill Wendling
c3526c778e Remove testcase. It's problematic for the buildbots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132589 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-03 20:43:58 +00:00
Jakob Stoklund Olesen
5f2316a3b5 Switch AllocationOrder to using RegisterClassInfo instead of a BitVector 
of reserved registers.

Use RegisterClassInfo in RABasic as well. This slightly changes som
allocation orders because RegisterClassInfo puts CSR aliases last.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132581 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-03 20:34:53 +00:00
Dan Gohman
965fefa1ad When merging MustAlias and PartialAlias, chose PartialAlias instead 
of conservatively choosing MayAlias.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132579 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-03 20:17:36 +00:00
Bill Wendling
578229cada Accomodate front-ends which use private instead of internal here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132575 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-03 19:21:05 +00:00
Eric Christopher
cf714d44b8 Make the Uv constraint a memory operand. This doesn't solve the 
addressing mode problem mentioned in r132559.

Backend part of rdar://9037836 and part of rdar://9119939


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132561 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-03 17:24:37 +00:00
Roman Divacky
0c9b559bfd Fix wrong usages of CTR/MCTR where CTR8/MCTR8 was meant. 
- Check for MTCTR8 in addition to MTCTR when looking up a hazard.

- When lowering an indirect call use CTR8 when targeting 64bit.

- Introduce BCTR8 that uses CTR8 and use it on 64bit when expanding ISD::BRIND.

The last change fixes PR8487. With those changes, we are able to compile a
running "ls" and "sh" on FreeBSD/PowerPC64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132552 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-03 15:47:49 +00:00
Nick Lewycky
444f297a78 Bail on unswitching a switch statement for a case with a critical edge. We name 
which edge to split by pred/succ pair, which means that we can end up splitting
the wrong edge (by case value) in the switch statement entirely. Fixes PR10031!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132535 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-03 06:27:15 +00:00
Eli Friedman
d6412c940e Add ARM fast-isel support for materializing the address of a global in cases where the global uses an indirect symbol. 
rdar://9431157



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132522 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-03 01:13:19 +00:00
Andrew Trick
98c521ceba Test case pasto (failed when run with IR verifier). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132516 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-02 23:57:27 +00:00
Bill Wendling
76dd0de6d5 This should have been a C++ testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132504 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-02 22:26:15 +00:00
Bill Wendling
effc34ec59 Testcase for r132493. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132495 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-02 22:12:42 +00:00
Bill Wendling
7a6037c4e0 Update for r132493 change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132494 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-02 22:11:49 +00:00
Eli Friedman
70d893e84b PR10067: Add missing safety check to call return transformation in MemCpyOpt::processStore. If something accesses the dest of the "copy" between the call and the copy, the performCallSlotOptzn transformation is not valid. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132485 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-02 21:24:42 +00:00
Devang Patel
cf4cc84738 During post RA scheduling, do not try to chase reg defs. to preserve DBG_VALUEs. This approach has several downsides, for example, it does not work when dbg value is a constant integer, it does not work if reg is defined more than once, it places end of debug value range markers in the wrong place. It even causes misleading incorrect debug info when duplicate DBG_VALUE instructions point to same reg def. 
Instead, use simpler approach and let DBG_VALUE follow its predecessor instruction. After live debug value analysis pass, all DBG_VALUE instruction are placed at the right place. Thanks Jakob for the hint!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132483 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-02 20:07:12 +00:00
Rafael Espindola
580cbd9cf0 Add test for PR10068. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132482 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-02 20:02:48 +00:00
Rafael Espindola
251b4a0405 Revert 132424 to fix PR10068. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132479 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-02 19:57:47 +00:00
Stuart Hastings
552c0ee4f9 Andy pointed out a dumb omission in this test case. Thanks Andy! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132477 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-02 19:26:49 +00:00
Stuart Hastings
1f344f052e Jakob pointed out a dumb omission in this test case. Thanks Jakob! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132472 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-02 18:44:05 +00:00
Stuart Hastings
84be958ed8 Omit unnecessary stack copy when x87 input is a load. 
rdar://problem/6373334


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132458 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-02 15:57:11 +00:00
Stuart Hastings
ac92565384 Tweak testcase for ARM bot. rdar://problem/5993888 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132454 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-02 05:05:39 +00:00
Akira Hatanaka
5e06903e66 Detect FI|cst pattern in MipsDAGToDAGISel::SelectAddr. Patch by Sasa Stankovic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132448 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-02 01:03:14 +00:00
Akira Hatanaka
f876bf81df Test case for r132444. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132445 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-02 00:25:53 +00:00
Eli Friedman
7c6a5a2c39 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.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132442 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-02 00:08:52 +00:00
Devang Patel
c432907eca Do not drop constant values when a variable's content is described using .debug_loc entries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132427 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-01 22:03:25 +00:00
Stuart Hastings
ec880283b3 Recommit 132404 with fixes. rdar://problem/5993888 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132424 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-01 21:33:14 +00:00
Eric Christopher
9aaa02a1d2 Allow bitcasts between valid types of the same size and vector 
types if the vector type is legal.

Fixes rdar://9306086


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132420 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-01 19:55:10 +00:00
Stuart Hastings
4abc5fea9c Revert 132404 to appease a buildbot. rdar://problem/5993888 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132419 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-01 19:52:20 +00:00
Eric Christopher
a3d91cd6a6 Add a testcase, enabled only on arm, for llvm-gcc r132366. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132409 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-01 18:23:56 +00:00
Stuart Hastings
0f971b1fdb Cleanup test case. rdar://problem/5660695 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132408 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-01 18:23:14 +00:00
Stuart Hastings
10ff0bbdfb 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132404 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-01 17:17:45 +00:00
Stuart Hastings
f1002828fd Reapply 132348 with fixes. rdar://problem/6501862 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132402 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-01 16:42:47 +00:00
Stuart Hastings
d7de954644 A forthcoming SSE patch will break this test; since the test is also 
valid for x87, re-target to x87.  rdar://problem/5993888


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132401 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-01 16:13:09 +00:00
Stuart Hastings
b909d35de4 Test case for 132396. rdar://problem/5660695 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132399 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-01 15:50:29 +00:00
Nadav Rotem
b6fbec3a54 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.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132394 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-01 12:51:46 +00:00
John McCall
1edbd6f3f0 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132382 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-01 02:17:11 +00:00
Galina Kistanova
a9f907912c Reverted r132135 per Xerxes request. These tests are passing for his setup. Requires more research. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132364 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-31 21:50:33 +00:00
Andrew Trick
b1ce4c09dd scev: Better sign-extend removal. Normalize postincrement recurrences 
so that their sign extended forms are congruent when no overflow occurs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132360 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-31 21:17:47 +00:00
Stuart Hastings
3200c4b53c Revert to pacify a buildbot. rdar://problem/6501862 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132351 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-31 19:56:35 +00:00
Stuart Hastings
df48e84b5b Followup to 132316; accept arbitrary constants, add with a constant, 
sub with a non-constant.  Fix comments, enlarge test case.
rdar://problem/6501862


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132348 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-31 19:29:55 +00:00
Richard Osborne
9497466190 Add XCore intrinsic for crc8. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132340 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-31 16:24:49 +00:00
Richard Osborne
7736c37c14 Add XCore intrinsic for crc32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132336 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-31 14:47:36 +00:00