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Author SHA1 Message Date
Dan Gohman
5c9f7ed9aa Remove unnecessary parens. 
llvm-svn: 101010
 2010-04-12 02:24:01 +00:00
Dan Gohman
77de904df0 Minor code simplification. 
llvm-svn: 101009
 2010-04-12 02:22:30 +00:00
Dan Gohman
dff42439b2 Re-apply r101000, with a fix: Don't eliminate an icmp which is part of 
the loop exit test. This usually doesn't come up for a variety of
reasons, but it isn't impossible, so make IndVarSimplify handle it
conservatively.

llvm-svn: 101008
 2010-04-12 02:21:50 +00:00
Chris Lattner
e4763d728a whether we enable dylibs or not depends on the host, not the target. 
llvm-svn: 101007
 2010-04-12 02:21:38 +00:00
Dan Gohman
97a1bdfafc Revert 101000, which is breaking self-host builds. 
llvm-svn: 101002
 2010-04-12 00:17:10 +00:00
Dan Gohman
3bf0040d05 Fix indentation. 
llvm-svn: 101001
 2010-04-11 23:44:58 +00:00
Dan Gohman
7e250afcfa Teach IndVarSimplify how to eliminate comparisons involving induction 
variables. For example, with code like this:

  for (i=0;i<n;++i)
    if (i<n)
      x[i] = 0;

IndVarSimplify will now recognize that i is always less than n inside
the loop, and eliminate the if.

llvm-svn: 101000
 2010-04-11 23:10:12 +00:00
Dan Gohman
ff456e3f4d Enhance ScalarEvolution::isKnownPredicate with support for 
loop conditions which are invariants.

llvm-svn: 100995
 2010-04-11 22:16:48 +00:00
Dan Gohman
f73ed98d56 Minor code simplification. 
llvm-svn: 100994
 2010-04-11 22:13:11 +00:00
Dan Gohman
07d134b751 When creating a ConstantRange for [n,UINT_MAX], special case n == 0, because 
ConstantRange(0, 0) creates an empty range rather than a full one.

llvm-svn: 100993
 2010-04-11 22:12:18 +00:00
Dan Gohman
a76ed3e23b Fix a comment. 
llvm-svn: 100992
 2010-04-11 22:07:56 +00:00
Dan Gohman
dfc68d4c92 Add a cast to void to show that the return value is being 
intentionally ignored.

llvm-svn: 100984
 2010-04-11 19:30:19 +00:00
Dan Gohman
487a63d3d7 Delete a dead check. 
llvm-svn: 100983
 2010-04-11 19:29:41 +00:00
Dan Gohman
a5db61b314 Delete dead code. 
llvm-svn: 100981
 2010-04-11 19:28:47 +00:00
Dan Gohman
25305cd2d1 Fix a #include. 
llvm-svn: 100980
 2010-04-11 19:27:52 +00:00
Dan Gohman
9ca5efece4 Rename isLoopGuardedByCond to isLoopEntryGuardedByCond, to emphasise 
that it's only testing for the entry condition, not full loop-invariant
conditions.

llvm-svn: 100979
 2010-04-11 19:27:13 +00:00
Benjamin Kramer
adc8df5270 utostr isn't going away too soon, try to make it slightly smaller. 
llvm-svn: 100977
 2010-04-11 19:00:03 +00:00
Nick Lewycky
87bd8ff991 Remove dead argument and clean whitespace. No functionality change. 
llvm-svn: 100954
 2010-04-10 23:18:13 +00:00
Chris Lattner
213ad9a058 Implement support for varargs functions without any fixed 
parameters in the CBE by implicitly adding a fixed argument.
This allows eliminating a work-around from DAE.  Patch by
Sylvere Teissier!

llvm-svn: 100944
 2010-04-10 19:12:44 +00:00
Daniel Dunbar
3945c97a95 configure: Fix default value for optimize_option, I messed up the test condition 
in r86005 and unintentionally changed the default from -O3 to -O2.

 - It's odd the things automated perf testing turns up! :)

 - Also, the configure diff is messed up slightly. It looks like someone either
   didn't regenerate configure correctly (or I didn't), or autoconf has some
   funnyness in it. Eric, any ideas?

This has been at -O2 for so long, that I am slightly nervous that this change
will uncover miscompiles of LLVM on other systems. If that is the case, I think
we should just set the default universally at -O3, and let developers/vendors
use -O3 if they want it and have tested it.

llvm-svn: 100941
 2010-04-10 18:56:24 +00:00
Chris Lattner
92b4e858d0 fix PR6743, a case where we'd delete an instruction before using it 
in some cases.

llvm-svn: 100937
 2010-04-10 18:26:57 +00:00
Chris Lattner
c5ee900be8 fix PR6760, a missing check in heap SRoA. 
llvm-svn: 100936
 2010-04-10 18:19:22 +00:00
Chris Lattner
433f14271a turn an assert into a proper check, fixing crash on invalid here: 
$ llvm-as t.ll
llvm-as: t.ll:1:6: error: expected 'type' after '='
%0 = = type { i32, float, float, double }
     ^

PR6810.

llvm-svn: 100934
 2010-04-10 18:01:25 +00:00
Chris Lattner
bb78eb4d82 improve haiku portability, patch by Paul Davey. 
llvm-svn: 100933
 2010-04-10 17:54:51 +00:00
Chris Lattner
caf521c6b4 add attributes and module level asm to the ocaml bindings, 
patch by Patrick Walton!

llvm-svn: 100932
 2010-04-10 17:52:58 +00:00
Sean Callanan
2ec5514c48 Updated the edis build mechanism to allow for builds 
that do not build some (or all) of the targets that
edis supports.

llvm-svn: 100910
 2010-04-10 00:48:10 +00:00
Dan Gohman
4e910beb76 Fix a typo and some indentation. 
llvm-svn: 100908
 2010-04-09 22:47:25 +00:00
Dan Gohman
67e02ffd79 When determining a canonical insert position, don't climb deeper 
into adjacent loops. Also, ensure that the insert position is
dominated by the loop latch of any loop in the post-inc set which
has a latch.

llvm-svn: 100906
 2010-04-09 22:07:05 +00:00
Bob Wilson
c340ffd866 Tidy whitespace. 
llvm-svn: 100904
 2010-04-09 21:38:26 +00:00
Johnny Chen
b6b7028930 If all the bit positions are not specified; do not decode the instructions. 
We are bound to fail!  For proper disassembly, the well-known encoding bits
of the instruction must be fully specified.

This also removes pseudo instructions from considerations of disassembly,
which is a better design and less fragile than the name matchings.

llvm-svn: 100899
 2010-04-09 21:01:02 +00:00
Chris Lattner
7ecde540fb suck the propagating "has dynamic libs" check into a single makefile 
variable TARGET_HAS_DYNAMIC_LIBS

llvm-svn: 100896
 2010-04-09 20:51:47 +00:00
Chris Lattner
9d77e5ba47 add minix support, patch by Kees van Reeuwijk! PR6797 
llvm-svn: 100895
 2010-04-09 20:45:04 +00:00
Chris Lattner
cd7b368e65 clean this up, fix std::min ambiguity on some platforms. 
llvm-svn: 100894
 2010-04-09 20:43:54 +00:00
Wesley Peck
6a6f1a5afa Adding IPSCCP and Internalize passes to the C-bindings 
llvm-svn: 100893
 2010-04-09 20:43:20 +00:00
Bob Wilson
ef934eac9f Provide versions of the ARM eh_sjlj_setjmp instructions for non-VFP subtargets 
such that the non-VFP versions have no implicit defs of VFP registers.
If any callee-saved VFP registers are marked as having been defined, the
prologue/epilogue code will try to save and restore them.
Radar 7770432.

llvm-svn: 100892
 2010-04-09 20:41:18 +00:00
Ted Kremenek
90babe9f35 Move 'Optional' class from Clang to LLVM/ADT. 
llvm-svn: 100889
 2010-04-09 20:25:54 +00:00
Johnny Chen
c531a30631 ARM decoder emitter should print out useful information unconditionally when it 
encounters decoding conflicts, instead of wrapping it inside the DEBUG() macro. 

llvm-svn: 100886
 2010-04-09 19:31:33 +00:00
Dan Gohman
e36761b7d0 When emitting code for an add, don't force a SCEVUnknown wrapper around 
a hoisted intermediate result if the intermediate result isn't an
Instruction.

llvm-svn: 100884
 2010-04-09 19:14:31 +00:00
Dan Gohman
2ea51b7464 When looking for loop-invariant users, look through no-op instructions, 
so that an unfortunately placed bitcast doesn't pin a value in a
register.

llvm-svn: 100883
 2010-04-09 19:12:34 +00:00
Benjamin Kramer
f040734da3 Make sure this test tests something. 
llvm-svn: 100879
 2010-04-09 19:03:31 +00:00
Bob Wilson
adb1da2978 Fix a grammaro. 
llvm-svn: 100877
 2010-04-09 18:39:54 +00:00
Bob Wilson
ee7665078a Add a testcase for svn r100568. 
llvm-svn: 100876
 2010-04-09 18:29:29 +00:00
Chris Lattner
5408e8a62b "On SPU, variables in the .bss section that are allocated with the .lcomm directive are not aligned on 16 byte boundaries. This causes misaligned loads, as the generated assembly assumes this "default" alignment. 
this patch disables .lcomm in favour of '.local .comm'

Patch by Kalle Raisklia!

llvm-svn: 100875
 2010-04-09 18:27:03 +00:00
Dan Gohman
d142f14f78 Add a comment. 
llvm-svn: 100874
 2010-04-09 18:20:03 +00:00
Bob Wilson
ae630d5518 Fix up header comments to match the comment fixups I made in r100849. 
llvm-svn: 100869
 2010-04-09 16:24:49 +00:00
Devang Patel
55172d3571 Clear InsnsBeginScopeSet and InsnsEndScopeSet at the end of function. 
llvm-svn: 100867
 2010-04-09 16:04:20 +00:00
Gabor Greif
f63f840826 performance: cache result of looking up user 
llvm-svn: 100862
 2010-04-09 15:18:34 +00:00
Dan Gohman
a451b859f9 Merge a few fast-isel tests. 
llvm-svn: 100860
 2010-04-09 15:03:55 +00:00
Dan Gohman
1dbce98fac Minor code simplification. 
llvm-svn: 100859
 2010-04-09 14:53:59 +00:00
Dan Gohman
f9cf2772f6 Delete this obsolete comment. 
llvm-svn: 100858
 2010-04-09 14:12:01 +00:00