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11439 Commits

Author SHA1 Message Date
Chris Lattner 87cf7f787e 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 b709ec6345 Emacs auto-fill bug. 
llvm-svn: 118908
 2010-11-12 18:17:46 +00:00
Andrew Trick ff5f8680d8 Test case for PR8287: SD scheduling time. Fixed in r118904. 
llvm-svn: 118906
 2010-11-12 17:57:22 +00:00
Chris Lattner 5b013b102d 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 de990b270d gnu as support both % and @ before types, do the same. 
llvm-svn: 118893
 2010-11-12 15:47:08 +00:00
Kalle Raiskila 0a9dd405a5 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 d4b7fff2e8 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 620c38f030 Filecheckize. 
llvm-svn: 118874
 2010-11-12 02:02:39 +00:00
Bruno Cardoso Lopes 03c0330176 Enable mips32 mul instruction. Patch by Akira Hatanaka <ahatanaka@mips.com> 
llvm-svn: 118864
 2010-11-12 00:38:32 +00:00
Owen Anderson ce2250fba4 Fill out support for Thumb2 encodings of NEON instructions. 
llvm-svn: 118854
 2010-11-11 23:12:55 +00:00
Wesley Peck bf65066a37 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 99a8cb4875 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 a826a88755 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 a56a2e1fc5 Flesh out tests for Thumb2 encodings of NEON instructions. 
llvm-svn: 118837
 2010-11-11 21:15:47 +00:00
Dan Gohman 22e0e1cecb Delete unneeded ssp attributes. 
llvm-svn: 118836
 2010-11-11 21:08:46 +00:00
Owen Anderson 7ffe3b35ac 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 84d031870c 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 a3e9a2298d Initial comdat implementation. 
llvm-svn: 118805
 2010-11-11 18:13:52 +00:00
Dan Gohman dcdfd8dd24 TBAA-enable ArgumentPromotion. 
llvm-svn: 118804
 2010-11-11 18:09:32 +00:00
Rafael Espindola fb6540c112 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 fa7b55754c 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 6cf9bb45ad Remove the memmove->memcpy optimization from CodeGen. MemCpyOpt does this. 
llvm-svn: 118789
 2010-11-11 16:24:49 +00:00
Dan Gohman 0cc4c7516e Make Sink tbaa-aware. 
llvm-svn: 118788
 2010-11-11 16:21:47 +00:00
NAKAMURA Takumi f791007e81 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 3cb92d809b Add a testcase which demonstrates alias analysis pass precedence. 
llvm-svn: 118755
 2010-11-11 01:03:30 +00:00
Dan Gohman 2e8ca44b81 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 0a6021a54d 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 f3b1bf1606 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 a4ceea8cd8 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 0171dc30ff 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 2694e14087 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 7e62965a7d Jim's recent fixes 118600, 118587, 118513 have made these work. 
llvm-svn: 118652
 2010-11-09 23:43:34 +00:00
Bob Wilson 193722ebc8 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 e3467a7687 Teach FunctionAttrs about the VAArg instruction. 
llvm-svn: 118627
 2010-11-09 20:17:38 +00:00
Duncan Sands e5276f11ee Testcase for PR8211 (llc crash at -O0). 
llvm-svn: 118509
 2010-11-09 16:22:27 +00:00
Dan Gohman 5db8921422 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 4677bafd85 Delete an extraneous svn:executable property. 
llvm-svn: 118470
 2010-11-09 01:51:06 +00:00
Dale Johannesen f11ea9ce61 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 c7baee31ad Add support for ARM's specialized vector-compare-against-zero instructions. 
llvm-svn: 118453
 2010-11-08 23:21:22 +00:00
Duncan Sands 52be6b41d3 Add an additional test for icmp of select folding. 
llvm-svn: 118441
 2010-11-08 20:56:28 +00:00
Dan Gohman 2a9221793a 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 0ef474730f Revert 118422 in search of bot verdancy. 
llvm-svn: 118429
 2010-11-08 19:17:22 +00:00
Jason W Kim f3e224f830 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 2cd1fd4a82 Make FunctionAttrs TBAA-aware. 
llvm-svn: 118417
 2010-11-08 17:12:04 +00:00
Dan Gohman 9130bad71f 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 86449d705a 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 9d17a3194e Set default flags for .rodata. 
llvm-svn: 118395
 2010-11-08 02:47:59 +00:00
Duncan Sands a620bd1fa3 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 f532d31198 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 7bcbfe9c80 Testcase for llvm-gcc 118368. 8629268. 
llvm-svn: 118369
 2010-11-07 04:58:48 +00:00