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Author SHA1 Message Date
Andrew Trick
c343c1e27e Propagate SCEV no-wrap flags whenever possible. 
This needs review.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127638 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-15 00:37:00 +00:00
Jim Grosbach
5edf24efac Clean up ARM tail calls a bit. They're pseudo-instructions for normal branches. 
Also more cleanly separate the ARM vs. Thumb functionality. Previously, the
encoding would be incorrect for some Thumb instructions (the indirect calls).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127637 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-15 00:30:40 +00:00
Eric Christopher
b9b80c3268 If we don't know how long a string is we can't fold an _chk version to the 
normal version.

Fixes rdar://9123638


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127636 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-15 00:25:41 +00:00
Francois Pichet
875c3ffcc9 Make llvm::Consumer a class (to remove a MSVC warning since Consumer is later forward declared as a struct) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127632 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 23:07:21 +00:00
Bill Wendling
69a05a7b92 Generate a VTBL instruction instead of a series of loads and stores when we 
can. As Nate pointed out, VTBL isn't super performant, but it *has* to be better
than this:

_shuf:
@ BB#0:       @ %entry
  push        {r4, r7, lr}
  add         r7, sp, #4
  sub         sp, #12
  mov         r4, sp
  bic         r4, r4, #7
  mov         sp, r4
  mov         r2, sp
  vmov        d16, r0, r1
  orr         r0, r2, #6
  orr         r3, r2, #7
  vst1.8      {d16[0]}, [r3]
  vst1.8      {d16[5]}, [r0]
  subs        r4, r7, #4
  orr         r0, r2, #5
  vst1.8      {d16[4]}, [r0]
  orr         r0, r2, #4
  vst1.8      {d16[4]}, [r0]
  orr         r0, r2, #3
  vst1.8      {d16[0]}, [r0]
  orr         r0, r2, #2
  vst1.8      {d16[2]}, [r0]
  orr         r0, r2, #1
  vst1.8      {d16[1]}, [r0]
  vst1.8      {d16[3]}, [r2]
  vldr.64     d16, [sp]
  vmov        r0, r1, d16
  mov         sp, r4
  pop         {r4, r7, pc}

The "illegal" testcase in vext.ll is no longer illegal.
<rdar://problem/9078775>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127630 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 23:02:38 +00:00
John McCall
b121bfcc22 Version N of the llvm_unreachable patch: VC++ doesn't recognize that abort() 
doesn't return, so just go back to using the old runtime function instead
of trying to use abort() when __builtin_unreachable (or an equivalent) isn't
supported.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127629 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 22:41:50 +00:00
Renato Golin
7d4fc4fb34 This patch is a big refactoring of llvm-diff. It doesn't add new features, but it re-organizes the old features, so I can insert the MetadataEngine to use the same infrastructure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127627 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 22:22:46 +00:00
Jan Sjödin
6e70cc1f97 Check that the AsmParser exists for the native target to enable initialization 
function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127626 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 22:12:35 +00:00
Eric Christopher
29cfa21326 Fix this test up a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127621 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 21:05:21 +00:00
Jim Grosbach
27e2649760 Trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127620 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 20:59:06 +00:00
Owen Anderson
4dd27ebcc2 Ignore isCodeGenOnly instructions when generating diassembly tables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127619 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 20:58:49 +00:00
Jakob Stoklund Olesen
cf03e35d90 Place context in member variables instead of passing around pointers. 
Use the opportunity to get rid of the trailing underscore variable names.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127618 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 20:57:14 +00:00
John McCall
fb32507d09 Okay, some compilers complain if you provide the exception-specification 
where none was before.  Just don't declare it and hope it's declared
in every translation unit that needs it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127612 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 20:20:29 +00:00
John McCall
f32b3c54f0 Fix the exception-specification of abort() when declaring it in C++. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127610 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 20:10:50 +00:00
John McCall
2f9a9ed785 Make llvm_unreachable evaluate to __builtin_unreachable() in -Asserts 
builds, which was the apparent consensus of PR8973 and llvmdev.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127608 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 20:01:21 +00:00
Jakob Stoklund Olesen
766faf4b2b Rename members to match LLVM naming conventions more closely. 
Remove the unused reserved_ bit vector, no functional change intended.

This doesn't break 'svn blame', this file really is all my fault.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127607 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 19:56:43 +00:00
Jim Grosbach
e2189144d4 Remove some dead patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127601 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 18:34:35 +00:00
Evan Cheng
34661e72fc BIT_CONVERT has been renamed to BITCAST. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127600 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 18:19:52 +00:00
Evan Cheng
5ae1da96f2 Minor optimization. sign-ext/anyext of undef is still undef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127598 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 18:15:55 +00:00
Evan Cheng
21a6179c9d Indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127595 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 18:02:30 +00:00
Andrew Trick
a053b21177 Negating a recurrence preserves no-self-wrap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127593 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 17:38:54 +00:00
Jim Grosbach
0c4d44aa7a Trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127592 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 17:32:49 +00:00
Andrew Trick
dcfd404e3c HowFarToZero can compute a trip count as long as the recurrence has no-self-wrap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127591 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 17:28:02 +00:00
Andrew Trick
3228cc259b Added SCEV::NoWrapFlags to manage unsigned, signed, and self wrap 
properties.
Added the self-wrap flag for SCEV::AddRecExpr.
A slew of temporary FIXMEs indicate the intention of the no-self-wrap flag
without changing behavior in this revision.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127590 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 16:50:06 +00:00
Andrew Trick
d99b39e43b whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127589 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 16:48:10 +00:00
Justin Holewinski
ae3ce17bac PTX: Emit global arrays with proper sizes 
- Emit all arrays as type .b8 and proper sizes in bytes to conform
  to the output of nvcc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127584 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 15:40:11 +00:00
Justin Holewinski
ba02495a57 PTX: Add support for sqrt/sin/cos intrinsics 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127578 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 14:09:33 +00:00
Che-Liang Chiou
f78847ee7b ptx: add set.p instruction and related changes to predicate execution 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127577 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 11:26:01 +00:00
Mikhail Glushenkov
046d0bdaf0 Emacs mode string. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127576 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 04:20:57 +00:00
Francois Pichet
606957fdd6 Correct small comment order typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127575 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 02:30:32 +00:00
Jin-Gu Kang
948d9e7ec7 This case is solved by Scalar Replacement of Aggregates (DT) and 
Early CSE pass so this patch reverts it to original source code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127574 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-14 01:21:00 +00:00
Che-Liang Chiou
c2ec0f974d ptx: add basic support of predicate execution 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127569 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-13 17:26:00 +00:00
Jin-Gu Kang
198e97c423 Add comment as following: 
load and store reference same memory location, the memory location
is represented by getelementptr with two uses (load and store) and
the getelementptr's base is alloca with single use. At this point,
instructions from alloca to store can be removed.
(this pattern is generated when bitfield is accessed.)
For example,
%u = alloca %struct.test, align 4               ; [#uses=1]
%0 = getelementptr inbounds %struct.test* %u, i32 0, i32 0;[#uses=2]
%1 = load i8* %0, align 4                       ; [#uses=1]
%2 = and i8 %1, -16                             ; [#uses=1]
%3 = or i8 %2, 5                                ; [#uses=1]
store i8 %3, i8* %0, align 4


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127565 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-13 14:05:51 +00:00
Oscar Fuentes
98f6ddc3c5 LTO is not ready for Windows. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127562 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-13 03:06:59 +00:00
Jakob Stoklund Olesen
5522e8a936 Now that we are deleting unused live intervals during allocation, pointers may be reused. 
Use the virtual register number as a cache tag instead. They are not reused.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127561 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-13 01:29:32 +00:00
Jakob Stoklund Olesen
7792e980c4 Tell the register allocator about new unused virtual registers. 
This allows the allocator to free any resources used by the virtual register,
including physical register assignments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127560 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-13 01:23:11 +00:00
Oscar Fuentes
b56130f96b Build EnhancedDisassembly as a shared library too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127555 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-12 22:01:47 +00:00
Oscar Fuentes
255d0253df Build CompilerDriver library. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127554 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-12 22:01:42 +00:00
Oscar Fuentes
8e3db304c1 Build LTO as a static library too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127553 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-12 22:01:36 +00:00
Oscar Fuentes
54efb7371a Build LTO as a static library too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127549 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-12 17:32:30 +00:00
Benjamin Kramer
14b2a59301 Teach ComputeMaskedBits about sub nsw. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127548 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-12 17:18:11 +00:00
Oscar Fuentes
879d3a98a2 Whe we build a shared library, add its list of used libraries to the 
link command.

Fixed a pair of IF expressions too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127546 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-12 16:48:54 +00:00
Oscar Fuentes
798403babd Update link components for llvm-dis and LTO. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127545 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-12 16:48:49 +00:00
Duncan Sands
ba9934648f Speculatively revert commit 127478 (jsjodin) in an attempt to fix the 
llvm-gcc-i386-linux-selfhost and llvm-x86_64-linux-checks buildbots.
The original log entry:
Remove optimization emitting a reference insted of label difference, since
it can create more relocations. Removed isBaseAddressKnownZero method,
because it is no longer used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127540 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-12 13:07:37 +00:00
Jin-Gu Kang
c5c03f9024 This patch removes some of useless instructions generated by bitfield access. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127539 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-12 12:18:44 +00:00
Jakob Stoklund Olesen
b1adbd1f67 Include snippets in the live stack interval. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127530 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-12 04:25:36 +00:00
Jakob Stoklund Olesen
10a433238f Spill multiple registers at once. 
Live range splitting can create a number of small live ranges containing only a
single real use. Spill these small live ranges along with the large range they
are connected to with copies. This enables memory operand folding and maximizes
the spill to fill distance.

Work in progress with known bugs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127529 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-12 04:17:20 +00:00
Sean Callanan
7a387e4d9d Fixed the comparison operator for the enhanced 
disassembler's disassembler map.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127527 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-12 03:27:54 +00:00
Jakob Stoklund Olesen
55768d763d That's it, I am declaring this a failure of the C++03 STL. 
There are too many compatibility problems with using mixed types in
std::upper_bound, and I don't want to spend 110 lines of boilerplate setting up
a call to a 10-line function. Binary search is not /that/ hard to implement
correctly.

I tried terminating the binary search with a linear search, but that actually
made the algorithm slower against my expectation. Most live intervals have less
than 4 segments. The early test against endIndex() does pay, and this version is
25% faster than plain std::upper_bound().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127522 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-12 01:50:35 +00:00
Eric Christopher
8b3000b08e Saving files before committing is overrated. 
Add a RUN line to this test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127520 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-12 01:36:23 +00:00