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Author SHA1 Message Date
Anton Korobeynikov
a65910e5ca Revert win64 changes. They seem to be incomplete 
llvm-svn: 112885
 2010-09-02 22:31:32 +00:00
Jim Grosbach
fb89154d21 For ARM stack frames that utilize variable sized objects and have either 
large local stack areas or require dynamic stack realignment, allocate a
base register via which to access the local frame. This allows efficient
access to frame indices not accessible via the FP (either due to being out
of range or due to dynamic realignment) or the SP (due to variable sized
object allocation). In particular, this greatly improves efficiency of access
to spill slots in Thumb functions which contain VLAs.

rdar://7352504
rdar://8374540
rdar://8355680

llvm-svn: 112883
 2010-09-02 22:29:01 +00:00
Bill Wendling
55612891ec - Change __builtin_ia32_palignr intrinsic type to match the pattern in clang. 
- Add patterns to match the following MMX builtins:

   * __builtin_ia32_vec_init_v8qi
   * __builtin_ia32_vec_init_v4hi
   * __builtin_ia32_vec_init_v2si
   * __builtin_ia32_vec_ext_v2si

  These builtins do not correspond to a single MMX instruction. They will have
  to be lowered -- most likely in the back-end.

llvm-svn: 112881
 2010-09-02 22:26:35 +00:00
Chris Lattner
1edeb00c72 fix more AST updating bugs, correcting miscompilation in PR8041 
llvm-svn: 112878
 2010-09-02 22:19:10 +00:00
Owen Anderson
1abc937731 Remove incorrect and poorly tested code for trying to reason about values on default edges of 
switches.  Just return the conservatively correct answer.

llvm-svn: 112876
 2010-09-02 22:16:52 +00:00
Anton Korobeynikov
339ab60a5b Properly allocate win64 shadow reg area. 
Patch by Jan Sjodin!

llvm-svn: 112875
 2010-09-02 22:16:28 +00:00
Dan Gohman
81f9434e99 Remove obsolete comments about throwing exceptions. 
llvm-svn: 112874
 2010-09-02 22:14:51 +00:00
John McCall
b91df6e799 After some discussion with djg, teach SmallVector to grow from a zero 
capacity and remove the workaround in SmallVector<T,0>.  There are some
theoretical benefits to a N->2N+1 growth policy anyway.

llvm-svn: 112870
 2010-09-02 21:55:03 +00:00
Bruno Cardoso Lopes
c24f2a0880 Move decoding of insertps back to avoid unused warnings in x86 isel lowering, and fix movlhps/movhlps to decode 4 elements shuffles 
llvm-svn: 112869
 2010-09-02 21:51:11 +00:00
Devang Patel
5d3e68d22b Detect undef value early and save unnecessary NodeMap query. 
llvm-svn: 112864
 2010-09-02 21:29:42 +00:00
Dan Gohman
6824bfc554 Don't narrow the load and store in a load+twiddle+store sequence unless 
there are clearly no stores between the load and the store. This fixes
this miscompile reported as PR7833.

This breaks the test/CodeGen/X86/narrow_op-2.ll optimization, which is
safe, but awkward to prove safe. Move it to X86's README.txt.

llvm-svn: 112861
 2010-09-02 21:18:42 +00:00
Devang Patel
3080c6e860 Tidy up. 
llvm-svn: 112858
 2010-09-02 21:02:27 +00:00
Sandeep Patel
1c6b7d8a96 Fix an unnecessary XFAIL 
llvm-svn: 112853
 2010-09-02 20:19:24 +00:00
Jim Grosbach
cc8ceaca96 trailing whitespace 
llvm-svn: 112852
 2010-09-02 19:52:39 +00:00
Owen Anderson
86201cfdd9 Fix typo. I accidentally edited the wrong file before my last commit. 
llvm-svn: 112851
 2010-09-02 19:52:06 +00:00
Benjamin Kramer
dd16ed1618 Add AsmParser support for the ELF .previous directive. Patch by Roman Divacky. 
llvm-svn: 112849
 2010-09-02 18:53:37 +00:00
Jim Grosbach
4d64fc98b6 remove trailing whitespace 
llvm-svn: 112847
 2010-09-02 18:44:51 +00:00
Bruno Cardoso Lopes
7132e91cdb Move x86 specific shuffle mask decoding to its own header, it's also going to be used elsewhere. Also trim trailing whitespaces 
llvm-svn: 112846
 2010-09-02 18:40:13 +00:00
Jim Grosbach
b35c81846b The scavenger should just use getAllocatableSet() rather than reinventing it 
locally.

llvm-svn: 112845
 2010-09-02 18:29:04 +00:00
Dan Gohman
7abb8df743 Apply a patch from Kees van Reeuwijk to add support for Minix. 
Minix apparently doesn't like double-slash separators, and there's
no apparent need for them here.

llvm-svn: 112844
 2010-09-02 18:24:46 +00:00
Owen Anderson
3206920eb2 Fix a bug in LazyValueInfo that CorrelatedValuePropagation exposed: In the LVI lattice, undef and the full set ConstantRange should not 
be treated as equivalent.

llvm-svn: 112843
 2010-09-02 18:23:58 +00:00
Jim Grosbach
ed278df6ec handle case where a register class is specified 
llvm-svn: 112842
 2010-09-02 18:18:52 +00:00
Jim Grosbach
8f30718112 Now that register allocation properly considers reserved regs, simplify the 
ARM register class allocation order functions to take advantage of that.

llvm-svn: 112841
 2010-09-02 18:14:29 +00:00
Dan Gohman
5cf037ea20 Add a comment. 
llvm-svn: 112836
 2010-09-02 17:35:10 +00:00
Benjamin Kramer
4d2c506037 Allow MCSA_WeakRef in ELF. Patch by Roman Divacky. 
llvm-svn: 112834
 2010-09-02 17:18:32 +00:00
Jim Grosbach
8a3babf59a Anti-dependency breaking needs to be careful not to use reserved regs 
llvm-svn: 112832
 2010-09-02 17:12:55 +00:00
Devang Patel
bbbd35d042 Fix .debug_range for linux. Patch by Krister Wombell. 
llvm-svn: 112830
 2010-09-02 16:43:44 +00:00
Jim Grosbach
4965868724 Mask out reserved registers when constructing the set of allocatable regs. 
llvm-svn: 112828
 2010-09-02 16:31:21 +00:00
Bob Wilson
c2c106f73e Fill in a missing comment. 
llvm-svn: 112826
 2010-09-02 16:17:29 +00:00
Bob Wilson
8951c7592c Convert VLD1 and VLD2 instructions to use pseudo-instructions until 
after regalloc.

llvm-svn: 112825
 2010-09-02 16:00:54 +00:00
Mikhail Glushenkov
486aba548f llvmc: .dylib support. 
llvm-svn: 112818
 2010-09-02 14:06:21 +00:00
Duncan Sands
6b382d04f4 Print the number of uses of a function in the .ll since it can be informative 
and there seems to be no reason not to.

llvm-svn: 112812
 2010-09-02 08:52:23 +00:00
Lang Hames
e80abebead Added support for register allocators to record which intervals are spill intervals, and where the uses and defs of the original intervals were in the original code. 
Spill intervals can be hidden using the "-rmf-intervals=virt-nospills*" option.

llvm-svn: 112811
 2010-09-02 08:27:00 +00:00
Duncan Sands
a95548a8d2 Reapply commit 112699, speculatively reverted by echristo, since 
I'm sure it is harmless.  Original commit message:
If PrototypeValue is erased in the middle of using the SSAUpdator
then the SSAUpdator may access freed memory.  Instead, simply pass
in the type and name explicitly, which is all that was used anyway.

llvm-svn: 112810
 2010-09-02 08:14:03 +00:00
Chandler Carruth
71b26a9243 Silence an ambiguous else warning from GCC. 
llvm-svn: 112809
 2010-09-02 07:08:05 +00:00
Nick Lewycky
7d3f15bab3 Fix compile errors. 
llvm-svn: 112808
 2010-09-02 05:44:31 +00:00
Lang Hames
d19ac535ea Added counters for PBQP reduction rules. 
llvm-svn: 112807
 2010-09-02 05:37:52 +00:00
Bruno Cardoso Lopes
659f549638 Replace unpckl_undef and unpckh_undef matching with target specific opcodes 
llvm-svn: 112806
 2010-09-02 05:23:12 +00:00
Bruno Cardoso Lopes
9d4a11d4c6 Move condition out to prepare for more matching 
llvm-svn: 112805
 2010-09-02 04:20:26 +00:00
Bruno Cardoso Lopes
1b9095fff1 Remove checking for isUNPCKL_v_undef_Mask, the specific node is already emitted for it 
llvm-svn: 112804
 2010-09-02 03:57:58 +00:00
NAKAMURA Takumi
500a204a62 llvm::FindExecutable(): Retrieve the name with suffix.exe, if available. 
bugpoint uses it.

llvm-svn: 112803
 2010-09-02 03:46:04 +00:00
NAKAMURA Takumi
f5566eebf8 test/loop-strength-reduce4: Add explicit triplet for Win32 host. 
llvm-svn: 112802
 2010-09-02 03:45:58 +00:00
NAKAMURA Takumi
8e620796b6 test/twoaddr-coalesce: Do not use @main. 
Win32 codegen emits implicit invoking __main into, to fail.

llvm-svn: 112801
 2010-09-02 03:45:51 +00:00
Bruno Cardoso Lopes
dcdab94661 become more strict about when it's safe to use X86ISD::MOVLPS 
llvm-svn: 112799
 2010-09-02 02:35:51 +00:00
Eric Christopher
6c3fa8c78f Clang's -ccc-host-triple was ignoring the arch specifier on my triple, 
I don't need to implement this quite yet - and not for ConstantInt anyhow.

llvm-svn: 112798
 2010-09-02 02:30:46 +00:00
Eric Christopher
cf0b12d117 This should be TargetMaterializeConstant instead. 
llvm-svn: 112795
 2010-09-02 01:48:11 +00:00
Eric Christopher
9dc3582a82 One definition of isThumb is plenty, thanks. 
llvm-svn: 112793
 2010-09-02 01:39:14 +00:00
Jim Grosbach
bb3bfa20e1 Remove trailing whitespace 
llvm-svn: 112790
 2010-09-02 01:02:06 +00:00
Eric Christopher
3aa2bb55d8 Rework arm fast-isel load and store handling. Move offset computation 
into the "address selection" routine and handle constant materialization
for stores.

llvm-svn: 112788
 2010-09-02 00:53:56 +00:00
Jim Grosbach
82a4ac2c83 Add a bit of debug output for register scavenging 
llvm-svn: 112787
 2010-09-02 00:51:37 +00:00