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Author SHA1 Message Date
Bill Wendling
779f2e1702 Fix comment. 
llvm-svn: 61538
 2009-01-01 01:19:59 +00:00
Bill Wendling
efbe8b808c Add transformation: 
xor (or (icmp, icmp), true) -> and(icmp, icmp)

This is possible because of De Morgan's law.

llvm-svn: 61537
 2009-01-01 01:18:23 +00:00
Bill Wendling
bf9874fd09 Some compilers are picky about accessing the first element of a std::vector if 
there's nothing in the vector. Pacify them.

llvm-svn: 61536
 2009-01-01 01:14:31 +00:00
Duncan Sands
e112cf52cb Look through phi nodes and select instructions when 
calculating nocapture attributes.

llvm-svn: 61535
 2008-12-31 20:21:34 +00:00
Bill Wendling
e288a29970 This is not failing on Darwin for some reason. XFAIL for other platforms. 
llvm-svn: 61533
 2008-12-31 19:26:09 +00:00
Duncan Sands
03192120cc Don't analyze arguments already marked 'nocapture'. 
llvm-svn: 61532
 2008-12-31 18:08:59 +00:00
Misha Brukman
4951288453 Fixed grammar and capitalization. 
llvm-svn: 61531
 2008-12-31 17:44:36 +00:00
Misha Brukman
3eb537b893 Add spacing between type and variable name. 
llvm-svn: 61530
 2008-12-31 17:41:49 +00:00
Misha Brukman
ba68ff9a5d Comment headers should extend to 80 chars. 
llvm-svn: 61529
 2008-12-31 17:40:52 +00:00
Misha Brukman
6c8b57ddfa Fix spacing to be uniform for parameters. 
llvm-svn: 61528
 2008-12-31 17:39:58 +00:00
Misha Brukman
d7b9e41922 Removed extra spaces. 
llvm-svn: 61527
 2008-12-31 17:38:27 +00:00
Misha Brukman
1aecaaf274 Import of Google Test 1.2.1, with the non-essential bits removed. 
Added a README.LLVM file to indicate which files and directories
were removed from the original source tarball.

llvm-svn: 61526
 2008-12-31 17:34:06 +00:00
Duncan Sands
36db5853cb Rename AddReadAttrs to FunctionAttrs, and teach it how 
to work out (in a very simplistic way) which function
arguments (pointer arguments only) are only dereferenced
and so do not escape.  Mark such arguments 'nocapture'.

llvm-svn: 61525
 2008-12-31 16:14:43 +00:00
Oscar Fuentes
4954ccb97b CMake: Added some VC++ specific info to CMake.html. 
llvm-svn: 61521
 2008-12-31 14:36:41 +00:00
Chris Lattner
5fcb753ac1 Add a new Attribute::getAlignmentFromAttrs method. 
llvm-svn: 61517
 2008-12-31 08:41:38 +00:00
Bill Wendling
c73286fc81 XFAIL test caused by r61493. Apparently, this is expected? 
llvm-svn: 61516
 2008-12-31 08:26:55 +00:00
Owen Anderson
ccde9db05a Get live interval reconstruction several steps closer to working. 
llvm-svn: 61514
 2008-12-31 02:00:25 +00:00
Chris Lattner
1cfa9f47db add a note 
llvm-svn: 61513
 2008-12-31 00:54:13 +00:00
Scott Michel
c163bf5042 XFAIL this for now until I can figure out what's going on. 
llvm-svn: 61512
 2008-12-31 00:08:25 +00:00
Scott Michel
12a5f7cfb9 Fix test erratum (which is wierd: works locally for me?) 
llvm-svn: 61511
 2008-12-30 23:52:05 +00:00
Scott Michel
cdcae67887 - Start moving target-dependent nodes that could be represented by an 
instruction sequence and cannot ordinarily be simplified by DAGcombine
  into the various target description files or SPUDAGToDAGISel.cpp.

  This makes some 64-bit operations legal.

- Eliminate target-dependent ISD enums.

- Update tests.

llvm-svn: 61508
 2008-12-30 23:28:25 +00:00
Bill Wendling
067c48f7a6 Linux wants the FDE initial location and address range to be forced to 32-bit. 
Darwin doesn't. Make this optional for platforms.

llvm-svn: 61484
 2008-12-29 22:12:11 +00:00
Bill Wendling
4749654506 The FDE initial location and address range data should be free to be 64-bit 
(quad) on a 64-bit platform. This fixes a problem with EH frames on Darwin.

llvm-svn: 61483
 2008-12-29 21:51:42 +00:00
Misha Brukman
abfa50fc15 * Updated TOC and fixed named anchors 
* Simplified section header marking 

llvm-svn: 61482
 2008-12-29 21:33:30 +00:00
Misha Brukman
4d4b7394f9 Minimize the width of the notes region: it will end where the text ends, if the 
line of text is short enough, instead of stretching all the way to the right
margin.

llvm-svn: 61481
 2008-12-29 21:25:09 +00:00
Misha Brukman
5b00db2c8f Simplified marking code regions with a single <pre> rather than 
a (<div>, <pre>) combo.

llvm-svn: 61480
 2008-12-29 21:20:51 +00:00
Duncan Sands
f7fb4d197c Make stripPointerCasts and getUnderlyingObject 
non-recursive.

llvm-svn: 61479
 2008-12-29 21:06:19 +00:00
Duncan Sands
488fe8b8a2 Experiments show that looking through phi nodes 
and select instructions doesn't buy anything here
except extra complexity: the only difference in
the entire testsuite was that a readonly function
became readnone in MiBench/consumer-typeset.  Add
a comment about this.

llvm-svn: 61478
 2008-12-29 20:51:17 +00:00
Misha Brukman
00d6a6ed4e Fixed spelling, removed trailing whitespace. 
llvm-svn: 61477
 2008-12-29 20:08:23 +00:00
Misha Brukman
207cd717bd Center the legal note to give it even padding on left and right, and make it 
stand out better.

llvm-svn: 61475
 2008-12-29 19:55:01 +00:00
Misha Brukman
438c7fddb0 Cleanup: clarify llvm-gcc version and package name. 
llvm-svn: 61474
 2008-12-29 19:38:58 +00:00
Duncan Sands
fb6f54629f Clarify a bit. Based on feedback by Talin. 
llvm-svn: 61470
 2008-12-29 15:27:32 +00:00
Duncan Sands
bd0cbff28e Allow readnone functions to read (and write!) global 
constants, since doing so is irrelevant for aliasing
purposes.  While this doesn't increase the total number
of functions marked readonly or readnone in MultiSource/
Applications (3089), it does result in 12 functions being
marked readnone rather than readonly.
Before:
  readnone: 820
  readonly: 2269
After:
  readnone: 832
  readonly: 2257

llvm-svn: 61469
 2008-12-29 11:34:09 +00:00
Duncan Sands
ef77539014 Add braces, as suggested by a gcc warning. 
llvm-svn: 61465
 2008-12-29 08:05:02 +00:00
Scott Michel
e555efe94d - Various '#if 0' cleanups. 
- Move v4i32, i32 mul into SPUInstrInfo.td, with a few more instruction
  cleanups there as well.
- Make SMUL_LOHI, UMUL_LOHI competely illegal for Cell SPU, to better
  assist Chris to see the problem in bug 3101.

llvm-svn: 61464
 2008-12-29 03:23:36 +00:00
Scott Michel
5bb7db3872 Teach LeaglizeDAG that i64 mul can be a libcall. 
llvm-svn: 61463
 2008-12-29 03:21:37 +00:00
Chris Lattner
befcb38427 select constant exprs should have the same constraints as select instructions, 
notably, they should support vectors and aggregates.

llvm-svn: 61462
 2008-12-29 00:16:12 +00:00
Chris Lattner
031a666948 move select validation logic into a shared place where the select ctor, 
verifier, asm parser, etc can share it.

llvm-svn: 61461
 2008-12-29 00:12:50 +00:00
Owen Anderson
e5b1fb3c25 Fix up kill/dead marking in the new live interval reconstruction code. 
llvm-svn: 61460
 2008-12-28 23:35:13 +00:00
Owen Anderson
4acaef9e5f Forgot to commit this file. 
Add a clear() method to remove all ranges and value numbers for a live interval.

llvm-svn: 61459
 2008-12-28 21:57:02 +00:00
Owen Anderson
e21f8339f8 Add prototype code for recomputing a live interval's ranges and valnos through recursive phi construction. 
llvm-svn: 61458
 2008-12-28 21:48:48 +00:00
Nick Lewycky
bb69bd55a4 Check that the function prototypes are correct before assuming that the 
parameters are pointers.

llvm-svn: 61451
 2008-12-27 16:20:53 +00:00
Chris Lattner
700ddfea3c add testcase for type parsing. 
llvm-svn: 61449
 2008-12-27 08:10:46 +00:00
Chris Lattner
b299065a53 implement simplify_type for PATypeHolder so that isa<FooType>(PATypeHolder) 
works.

llvm-svn: 61448
 2008-12-27 07:47:40 +00:00
Scott Michel
bf224860c8 - Remove Tilmann's custom truncate lowering: it completely hosed over 
DAGcombine's ability to find reasons to remove truncates when they were not
  needed. Consequently, the CellSPU backend would produce correct, but _really
  slow and horrible_, code.

  Replaced with instruction sequences that do the equivalent truncation in
  SPUInstrInfo.td.

- Re-examine how unaligned loads and stores work. Generated unaligned
  load code has been tested on the CellSPU hardware; see the i32operations.c
  and i64operations.c in CodeGen/CellSPU/useful-harnesses.  (While they may be
  toy test code, it does prove that some real world code does compile
  correctly.)

- Fix truncating stores in bug 3193 (note: unpack_df.ll will still make llc
  fault because i64 ult is not yet implemented.)

- Added i64 eq and neq for setcc and select/setcc; started new instruction
  information file for them in SPU64InstrInfo.td. Additional i64 operations
  should be added to this file and not to SPUInstrInfo.td.

llvm-svn: 61447
 2008-12-27 04:51:36 +00:00
Chris Lattner
cd245cc5c3 add PR # 
llvm-svn: 61427
 2008-12-25 05:40:38 +00:00
Chris Lattner
fde038935b Add a simple pattern for matching 'bt'. 
llvm-svn: 61426
 2008-12-25 05:34:37 +00:00
Chris Lattner
062ed6e3dd Fix some JIT encodings. 
llvm-svn: 61425
 2008-12-25 01:32:49 +00:00
Chris Lattner
f34b843728 BT memory operands load from their address operand. 
llvm-svn: 61424
 2008-12-25 01:27:10 +00:00
Chris Lattner
e9229dc899 translateX86CC can never fail. Simplify it based on this. 
llvm-svn: 61423
 2008-12-24 23:53:05 +00:00