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11439 Commits

Author SHA1 Message Date
Chris Lattner
2a70c4e38a accept lret as an alias for lretl, fixing the reopened part of PR8592 
llvm-svn: 118916
 2010-11-12 18:54:56 +00:00
Andrew Trick
a2f5bd63ff Emacs auto-fill bug. 
llvm-svn: 118908
 2010-11-12 18:17:46 +00:00
Andrew Trick
e5e40ec069 Test case for PR8287: SD scheduling time. Fixed in r118904. 
llvm-svn: 118906
 2010-11-12 17:57:22 +00:00
Chris Lattner
612039e538 implement PR8592: empirically "lretq" is a "lret" with a rex.w prefix. 
llvm-svn: 118903
 2010-11-12 17:41:20 +00:00
Rafael Espindola
dc54b2b285 gnu as support both % and @ before types, do the same. 
llvm-svn: 118893
 2010-11-12 15:47:08 +00:00
Kalle Raiskila
f89d0d0389 Fix memory access lowering on SPU, adding 
support for the case where alignment<value size.

These cases were silently miscompiled before this patch.
Now they are overly verbose -especially storing is- and
any front-end should still avoid misaligned memory 
accesses as much as possible. The bit juggling algorithm
added here probably has some room for improvement still.

llvm-svn: 118889
 2010-11-12 10:14:03 +00:00
Dan Gohman
bc5a716f10 Enhance DSE to handle the case where a free call makes more than 
one store dead. This is especially noticeable in
SingleSource/Benchmarks/Shootout/objinst.

llvm-svn: 118875
 2010-11-12 02:19:17 +00:00
Dan Gohman
2cf0e523cb Filecheckize. 
llvm-svn: 118874
 2010-11-12 02:02:39 +00:00
Bruno Cardoso Lopes
37f2439cbd Enable mips32 mul instruction. Patch by Akira Hatanaka <ahatanaka@mips.com> 
llvm-svn: 118864
 2010-11-12 00:38:32 +00:00
Owen Anderson
85cf1b8ff5 Fill out support for Thumb2 encodings of NEON instructions. 
llvm-svn: 118854
 2010-11-11 23:12:55 +00:00
Wesley Peck
0e937ae80d Fix tblgen instruction errors exposed by MC asm parser tests 
Fix minimum 16-bit signed value error exposed by MC asm parser tests
Add initial MC asm parser tests for the MBlaze backend

llvm-svn: 118844
 2010-11-11 21:40:53 +00:00
Owen Anderson
0913dac245 Add correct Thumb2 encodings for NEON vst[1,2,3,4] and vld[1,2,3,4]. 
llvm-svn: 118843
 2010-11-11 21:36:43 +00:00
Dan Gohman
b20b7d2ec2 Factor out Instruction::isSafeToSpeculativelyExecute's code for 
testing for dereferenceable pointers into a helper function,
isDereferenceablePointer.  Teach it how to reason about GEPs
with simple non-zero indices.

Also eliminate ArgumentPromtion's IsAlwaysValidPointer,
which didn't check for weak externals or out of range gep
indices.

llvm-svn: 118840
 2010-11-11 21:23:25 +00:00
Owen Anderson
7fda1a6efd Flesh out tests for Thumb2 encodings of NEON instructions. 
llvm-svn: 118837
 2010-11-11 21:15:47 +00:00
Dan Gohman
139b090e0e Delete unneeded ssp attributes. 
llvm-svn: 118836
 2010-11-11 21:08:46 +00:00
Owen Anderson
f43f09f6f6 Add support for Thumb2 encodings of NEON data processing instructions, using the new PostEncoderMethod infrastructure. 
More tests to come.

llvm-svn: 118819
 2010-11-11 19:07:48 +00:00
Rafael Espindola
1725702868 Mark labels declared in tls sections as STT_TLS. This matches the behavior of 
gas.

llvm-svn: 118818
 2010-11-11 19:04:55 +00:00
Rafael Espindola
8555d32c9e Initial comdat implementation. 
llvm-svn: 118805
 2010-11-11 18:13:52 +00:00
Dan Gohman
7c6a63aea3 TBAA-enable ArgumentPromotion. 
llvm-svn: 118804
 2010-11-11 18:09:32 +00:00
Rafael Espindola
f7b3bb84e8 Make AliasedSymbol able to handle MCTargetExpr. They can get here if 
a weakref is used with a VariantKind.

llvm-svn: 118798
 2010-11-11 17:24:43 +00:00
Rafael Espindola
f1ee36c3a3 Fix the symbol index of weak references. Also make RecordRelocation a bit 
easier to read by having const references to the symbol, aliased symbol and
renamed symbol.

llvm-svn: 118793
 2010-11-11 16:48:11 +00:00
Dan Gohman
8e986f9c2f Remove the memmove->memcpy optimization from CodeGen. MemCpyOpt does this. 
llvm-svn: 118789
 2010-11-11 16:24:49 +00:00
Dan Gohman
01ed16d764 Make Sink tbaa-aware. 
llvm-svn: 118788
 2010-11-11 16:21:47 +00:00
NAKAMURA Takumi
5b3bb628fb CMake: Add the new option "LLVM_LIT_ARGS". 
Defaults:
if (MSVC OR XCODE): "-sv --no-progress-bar"
else: "-sv"

llvm-svn: 118776
 2010-11-11 04:09:35 +00:00
Dan Gohman
2ffc9c8de3 Add a testcase which demonstrates alias analysis pass precedence. 
llvm-svn: 118755
 2010-11-11 01:03:30 +00:00
Dan Gohman
aef3e95364 Fully invalidate cached results when a prior query's size or 
type is insufficient for, or incompatible with, the current query.

llvm-svn: 118721
 2010-11-10 21:45:11 +00:00
Dan Gohman
2b4e8302a6 Enhance GVN to do more precise alias queries for non-local memory 
references. For example, this allows gvn to eliminate the load in
this example:

  void foo(int n, int* p, int *q) {
    p[0] = 0;
    p[1] = 1;
    if (n) {
      *q = p[0];
    }
  }

llvm-svn: 118714
 2010-11-10 20:37:15 +00:00
Duncan Sands
8531f14f5b Teach InstructionSimplify how to look through PHI nodes. Since PHI 
nodes can be used in loops, this could result in infinite looping
if there is no recursion limit, so add such a limit.  It is also
used for the SelectInst case because in theory there could be an
infinite loop there too if the basic block is unreachable.

llvm-svn: 118694
 2010-11-10 18:23:01 +00:00
Bruno Cardoso Lopes
c911863e01 Add a test to the previous added clo instruction. Patch by Akira again 
llvm-svn: 118668
 2010-11-10 02:22:44 +00:00
Dale Johannesen
24a82bdec2 When checking that the necessary bits are zero in 
order to reduce ((x<<30)>>24) to x<<6, check the
correct bits.  PR 8547.

llvm-svn: 118665
 2010-11-10 01:30:56 +00:00
Dan Gohman
1571dfc883 Make ModRefBehavior a lattice. Use this to clean up AliasAnalysis 
chaining and simplify FunctionAttrs' GetModRefBehavior logic.

llvm-svn: 118660
 2010-11-10 01:02:18 +00:00
Dale Johannesen
aa868ba745 Jim's recent fixes 118600, 118587, 118513 have made these work. 
llvm-svn: 118652
 2010-11-09 23:43:34 +00:00
Bob Wilson
a933ce4caa Do not use MEMBARRIER_MCR for any Thumb code. 
It is only supported for ARM code.  Normally Thumb2 code would use DMB instead,
but depending on how the compiler is invoked (e.g., -mattr=-db) that might be
disabled.  This prevents a "cannot select MEMBARRIER_MCR" error in that
situation.  Radar 8644195

llvm-svn: 118642
 2010-11-09 22:50:44 +00:00
Dan Gohman
a42f6c32a3 Teach FunctionAttrs about the VAArg instruction. 
llvm-svn: 118627
 2010-11-09 20:17:38 +00:00
Duncan Sands
a6d539ccbc Testcase for PR8211 (llc crash at -O0). 
llvm-svn: 118509
 2010-11-09 16:22:27 +00:00
Dan Gohman
903935bf3e Fix DAGCombiner to avoid folding a sext-in-reg or similar through a shl 
in order to fold it into a load.

llvm-svn: 118471
 2010-11-09 01:54:35 +00:00
Dan Gohman
f78cd9006b Delete an extraneous svn:executable property. 
llvm-svn: 118470
 2010-11-09 01:51:06 +00:00
Dale Johannesen
88f85df7f7 Fix an inline asm pasto from 117667; was preventing 
{i64, i64} from matching i128.

llvm-svn: 118465
 2010-11-09 01:15:07 +00:00
Owen Anderson
52e3873edc Add support for ARM's specialized vector-compare-against-zero instructions. 
llvm-svn: 118453
 2010-11-08 23:21:22 +00:00
Duncan Sands
3ced912bf8 Add an additional test for icmp of select folding. 
llvm-svn: 118441
 2010-11-08 20:56:28 +00:00
Dan Gohman
cee4cb4b0a Add a testcase for a call which BasicAA says only accesses memory through 
its arguments and which TBAA says doesn't write to memory.

llvm-svn: 118439
 2010-11-08 20:20:11 +00:00
Dale Johannesen
f16acd1325 Revert 118422 in search of bot verdancy. 
llvm-svn: 118429
 2010-11-08 19:17:22 +00:00
Jason W Kim
a253ed4e26 Support -mcpu=cortex-a8 in ARM attributes - Has Fixme. 1 Test modified. 
llvm-svn: 118422
 2010-11-08 17:58:07 +00:00
Dan Gohman
c04ed6e5da Make FunctionAttrs TBAA-aware. 
llvm-svn: 118417
 2010-11-08 17:12:04 +00:00
Dan Gohman
6909ecf66e Extend the AliasAnalysis::pointsToConstantMemory interface to allow it 
to optionally look for constant or local (alloca) memory.

Teach BasicAliasAnalysis::pointsToConstantMemory to look through Select
and Phi nodes, and to support looking for local memory.

Remove FunctionAttrs' PointsToLocalOrConstantMemory function, now that
AliasAnalysis knows all the tricks that it knew.

llvm-svn: 118412
 2010-11-08 16:45:26 +00:00
Dan Gohman
4e65d5ff92 Make FunctionAttrs use AliasAnalysis::getModRefBehavior, now that it 
knows about intrinsic functions.

llvm-svn: 118410
 2010-11-08 16:10:15 +00:00
Rafael Espindola
1602d991d5 Set default flags for .rodata. 
llvm-svn: 118395
 2010-11-08 02:47:59 +00:00
Duncan Sands
0a5bcce250 Add simplification of floating point comparisons with the result 
of a select instruction, the same as already exists for integer
comparisons.

llvm-svn: 118379
 2010-11-07 16:46:25 +00:00
Duncan Sands
c9c7d54930 Fix a README item: when doing a comparison with the result 
of a select instruction, see if doing the compare with the
true and false values of the select gives the same result.
If so, that can be used as the value of the comparison.

llvm-svn: 118378
 2010-11-07 16:12:23 +00:00
Dale Johannesen
d48eca9b43 Testcase for llvm-gcc 118368. 8629268. 
llvm-svn: 118369
 2010-11-07 04:58:48 +00:00