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Author SHA1 Message Date
Jim Grosbach
d4603a5c4e Darwin requires a frame pointer for all non-leaf functions to support correct 
backtraces.

llvm-svn: 89562
 2009-11-21 21:40:08 +00:00
Evan Cheng
a7496ef9a6 Add predicate operand to NEON instructions. Fix lots (but not all) 80 col violations in ARMInstrNEON.td. 
llvm-svn: 89542
 2009-11-21 06:21:52 +00:00
Evan Cheng
6970be3ca4 Allow target to disable if-converting predicable instructions. e.g. NEON instructions under ARM mode. 
llvm-svn: 89541
 2009-11-21 06:20:26 +00:00
Devang Patel
7f5e6b43a0 Cosmetic changes, which were long overdue, in DwarfDebug.cpp. 
llvm-svn: 89537
 2009-11-21 02:48:08 +00:00
Devang Patel
327919890c We are not using DBG_STOPPOINT anymore. 
llvm-svn: 89536
 2009-11-21 02:46:55 +00:00
Evan Cheng
ff6861f38c Maintain stylistic consistency. 
llvm-svn: 89535
 2009-11-21 02:32:35 +00:00
Jakob Stoklund Olesen
78f465dc49 Don't leave temporary files in the test directory. 
llvm-svn: 89531
 2009-11-21 02:05:31 +00:00
Jakob Stoklund Olesen
319458cd03 Be more clever about calculating live variables through new basic blocks. 
When splitting a critical edge, the registers live through the edge are:

- Used in a PHI instruction, or
- Live out from the predecessor, and
- Live in to the successor.

This allows the coalescer to eliminate even more phi joins.

llvm-svn: 89530
 2009-11-21 02:05:21 +00:00
Daniel Dunbar
bd57261f1f Allow SmallString to implicitly convert to StringRef. 
llvm-svn: 89529
 2009-11-21 02:01:24 +00:00
Eric Christopher
455f4d8400 Add more optimizations for object size checking, enable handling of 
object size intrinsic and verify return type is correct. Collect various
code in one place.

llvm-svn: 89523
 2009-11-21 01:01:30 +00:00
Devang Patel
c672dccdbb Remove dead code. 
llvm-svn: 89522
 2009-11-21 00:54:03 +00:00
Dale Johannesen
907ff5a620 When generating a vector the really slow way, via loads 
and stores, handle the case where the element size is not
a valid target type correctly (PPC).

llvm-svn: 89521
 2009-11-21 00:53:23 +00:00
Devang Patel
8d7175f85f There is no need to use FoldingSet to unique DIEs. 
DIEs are created from MDNode, which are already uniqued. And DwarfDebug already uses ValueMaps to find and use existing DIE for a given MDNode.

llvm-svn: 89518
 2009-11-21 00:31:03 +00:00
Viktor Kutuzov
ac8f027245 Added two SubtargetFeatures::AddFeatures methods, which accept a comma-separated string or already parsed command line parameters as input, and some code re-factoring to use these new methods. 
llvm-svn: 89516
 2009-11-21 00:00:02 +00:00
David Goodwin
d5ef76388e Restructure code to allow renaming of multiple-register groups for anti-dep breaking. 
llvm-svn: 89511
 2009-11-20 23:33:54 +00:00
Evan Cheng
9828118adf Enable hoisting load from constant memories. 
llvm-svn: 89510
 2009-11-20 23:31:34 +00:00
Dan Gohman
e5eddcd606 Fix a thinko that caused spurious @GOTOFFs. 
llvm-svn: 89509
 2009-11-20 23:30:32 +00:00
Dan Gohman
ca4026afec Update for new getBlockAddress signature. 
llvm-svn: 89507
 2009-11-20 23:21:00 +00:00
Dan Gohman
3517f425b8 Target-independent support for TargetFlags on BlockAddress operands, 
and support for blockaddresses in x86-32 PIC mode.

llvm-svn: 89506
 2009-11-20 23:18:13 +00:00
Sean Callanan
78ee7f5d57 Recommitting PALIGNR shift width fixes. 
Thanks to Daniel Dunbar for fixing clang intrinsics:
  http://llvm.org/viewvc/llvm-project?view=rev&revision=89499

llvm-svn: 89500
 2009-11-20 22:28:42 +00:00
Dale Johannesen
45f80d39f6 Remove an incorrect overaggressive optimization 
(PPC specific).

llvm-svn: 89496
 2009-11-20 22:16:40 +00:00
Sean Callanan
d92626fc0d Reverting PALIGNR fix until I figure out how this 
broke the Clang testsuite.

llvm-svn: 89495
 2009-11-20 22:09:28 +00:00
Sean Callanan
0da77167d3 Fixed PALIGNR to take 8-bit rotations in all cases. 
Also fixed the corresponding testcase, and the PALIGNR
  intrinsic (tested for correctness with llvm-gcc).

llvm-svn: 89491
 2009-11-20 21:40:28 +00:00
Devang Patel
7b6ef33b1c Do not hold on to a map slot while new entries may be inserted into the map. 
Use ValueMap, instead of std::map.

llvm-svn: 89490
 2009-11-20 21:37:22 +00:00
David Greene
b4587dcdc9 Cleanups. 
Make things a little more efficient as suggested by Evan.

llvm-svn: 89489
 2009-11-20 21:13:27 +00:00
Devang Patel
35731e4453 There is no need to emit source location info for DW_TAG_pointer_type. 
llvm-svn: 89487
 2009-11-20 21:05:37 +00:00
Dan Gohman
d115107ef2 Make Loop::getLoopLatch() work on loops which don't have preheaders, as 
it may be used in contexts where preheader insertion may have failed due
to an indirectbr.

Make LoopSimplify's LoopSimplify::SeparateNestedLoop properly fail in
the case that it would require splitting an indirectbr edge.

These fix PR5502.

llvm-svn: 89484
 2009-11-20 20:51:18 +00:00
Dan Gohman
94cca19d9d Fix IPSCCP's code for deleting dead blocks to tolerate outstanding 
blockaddress users. This fixes PR5569.

llvm-svn: 89483
 2009-11-20 20:19:14 +00:00
Daniel Dunbar
09a7f92b02 Revert "Add some rough optimizations for checking routines.", it buildeth not. 
llvm-svn: 89482
 2009-11-20 20:17:30 +00:00
Eric Christopher
61485dfd00 Add some rough optimizations for checking routines. 
llvm-svn: 89479
 2009-11-20 19:57:37 +00:00
Evan Cheng
9f57c4916e Remat VLDRD from constpool. Clean up some instruction property specifications. 
llvm-svn: 89478
 2009-11-20 19:57:15 +00:00
Evan Cheng
92a81f9ffc Add option -licm-const-load to hoist all loads from constant memory. 
llvm-svn: 89477
 2009-11-20 19:55:37 +00:00
Jim Grosbach
8371342c89 The verify() call of CPEIsInRange() isn't right for the assertion check of 
constant pool ranges, as CPEIsInRange() makes conservative assumptions about
the potential alignment changes from branch adjustments. The verification,
on the other hand, runs after those branch adjustments are made, so the
effects on alignment are known and already taken into account. The sanity
check in verify should check the range directly instead.

llvm-svn: 89473
 2009-11-20 19:37:38 +00:00
Dan Gohman
b9c2249009 Use stripPointerCasts(). Thanks Duncan! 
llvm-svn: 89472
 2009-11-20 19:33:16 +00:00
David Goodwin
8954ccb109 Remove some old experimental code that is no longer needed. Remove additional, speculative scheduling pass as its cost did not translate into significant performance improvement. Minor tweaks. 
llvm-svn: 89471
 2009-11-20 19:32:48 +00:00
Jakob Stoklund Olesen
bf42858641 More consistent labelling of basic blocks in debug output 
llvm-svn: 89470
 2009-11-20 18:54:59 +00:00
Dan Gohman
198fbdadcf Revert the rule that considers comparisons between two pointers in the 
same object to be a non-capture; Duncan pointed out a way that such
a comparison could be a capture.

Make the rule that considers a comparison against null more specific,
and only consider noalias return values compared against null. This
still supports test/Transforms/GVN/nonescaping-malloc.ll, and is not
susceptible to the problem Duncan pointed out with noalias arguments.

llvm-svn: 89468
 2009-11-20 17:50:21 +00:00
Mikhail Glushenkov
d561db80e6 Move the handling of CommaSeparated options into ProvideOption. 
Makes '--comma-separated val1,val2' mean the same thing as
'--comma-separated=val1,val2' (that is, 'val1' and 'val2' are not lumped
together as 'val1,val2'). Also declutters the main loop a bit.

llvm-svn: 89463
 2009-11-20 17:23:17 +00:00
Duncan Sands
5f5ec2a6ec Fix PR5563, an expensive checks failure when running on 
tests/Transforms/InstCombine/shufflemask-undef.ll.  If
anyone cares, the use of 2*e here (and the equivalent
all over the place in instcombine) seems wrong, though
harmless: it should really be twice the length of the
input vector.  I think shufflevector used to require
that the mask have the same length as the input, but I
don't think that's true any more.  I don't care enough
about vectors to do anything about this...

llvm-svn: 89456
 2009-11-20 13:19:51 +00:00
Duncan Sands
072d688d75 Fix PR5558, which was caused by a wrong fix for PR3393 (see commit 63048), 
which was an expensive checks failure due to a bug in the checking.  This
patch in essence reverts the original fix for PR3393, and refixes it by a
tweak to the way expensive checking is done.

llvm-svn: 89454
 2009-11-20 10:45:10 +00:00
Benjamin Kramer
8be7ccec51 Try to work around grep's "Binary file (standard input) matches" complaints seen 
on ppc buildbot.

llvm-svn: 89452
 2009-11-20 09:53:25 +00:00
Daniel Dunbar
66d480dc05 Fix -march= name for x86-64. 
llvm-svn: 89445
 2009-11-20 02:52:08 +00:00
Dan Gohman
d3d7358309 Fix fast-isel to avoid selecting the return instruction if a 
tail call has been encountered.

llvm-svn: 89444
 2009-11-20 02:51:26 +00:00
Jim Grosbach
0057f45c31 Remove verifySizes() since it's not adding much value. 
llvm-svn: 89443
 2009-11-20 02:32:06 +00:00
Evan Cheng
5fe8b0b3c5 Also CSE non-pic load from constant pools. 
llvm-svn: 89440
 2009-11-20 02:10:27 +00:00
Dan Gohman
1c98078e57 Add an experimental option to run gep-splitting and no-load GVN 
just before codegen.

llvm-svn: 89439
 2009-11-20 02:03:44 +00:00
Dan Gohman
be82a074fa Simplify this code; it's not necessary to check isIdentifiedObject here 
because if the results from getUnderlyingObject match, the values must
be from the same underlying object, even if we don't know what that
object is.

llvm-svn: 89434
 2009-11-20 01:34:03 +00:00
Jakob Stoklund Olesen
ab8e8a9bc9 Add MachineBasicBlock::getName, and use it in place of getBasicBlock()->getName. 
Fix debug code that assumes getBasicBlock never returns NULL.

llvm-svn: 89428
 2009-11-20 01:17:03 +00:00
Dan Gohman
9f19d60c14 Teach getSmallConstantTripMultiple about Shl operators. 
llvm-svn: 89426
 2009-11-20 01:09:34 +00:00
Evan Cheng
405012b096 Fix codegen of conditional move of immediates. We were not making use of the immediate forms of cmov instructions at all. 
llvm-svn: 89423
 2009-11-20 00:54:03 +00:00