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Author SHA1 Message Date
Duncan Sands
1faa6258eb On big-endian machines it is wrong to do a full 
width register load followed by a truncating
store for the copy, since the load will not place
the value in the lower bits.  Probably partial
loads/stores can never happen here, but fix it
anyway.

llvm-svn: 60972
 2008-12-13 07:18:38 +00:00
Misha Brukman
5e6eec9337 Fix spelling. 
llvm-svn: 60971
 2008-12-13 05:21:37 +00:00
Mikhail Glushenkov
8d8dd2f6a3 Some more documentation tweaks. 
llvm-svn: 60970
 2008-12-13 03:11:37 +00:00
Mikhail Glushenkov
37399780e2 More cosmetic tweaks for llvmc docs. 
llvm-svn: 60969
 2008-12-13 02:28:58 +00:00
Devang Patel
91736025e1 Re-enable test. 
llvm-svn: 60968
 2008-12-12 22:42:35 +00:00
Devang Patel
5b7938b1cc Do not print empty DW_AT_comp_dir. 
llvm-svn: 60965
 2008-12-12 21:57:54 +00:00
Duncan Sands
ddce2cb415 When expanding unaligned loads and stores do not make 
use of illegal integer types: instead, use a stack slot
and copying via integer registers.  The existing code
is still used if the bitconvert is to a legal integer
type.

This fires on the PPC testcases 2007-09-08-unaligned.ll
and vec_misaligned.ll.  It looks like equivalent code
is generated with these changes, just permuted, but
it's hard to tell.

With these changes, nothing in LegalizeDAG produces
illegal integer types anymore.  This is a prerequisite
for removing the LegalizeDAG type legalization code.

While there I noticed that the existing code doesn't
handle trunc store of f64 to f32: it turns this into
an i64 store, which represents a 4 byte stack smash.
I added a FIXME about this.  Hopefully someone more
motivated than I am will take care of it.

llvm-svn: 60964
 2008-12-12 21:47:02 +00:00
Bill Wendling
13e4a3d0b0 - Use patterns instead of creating completely new instruction matching patterns, 
which are identical to the original patterns.

- Change the multiply with overflow so that we distinguish between signed and
  unsigned multiplication. Currently, unsigned multiplication with overflow
  isn't working!

llvm-svn: 60963
 2008-12-12 21:15:41 +00:00
Devang Patel
0aae72ae88 XFAIL these tests for now. 
llvm-svn: 60959
 2008-12-12 19:08:08 +00:00
Evan Cheng
56d9fc70bd Fix add/sub expansion: don't create ADD / SUB with two results (seems like everyone is doing this these days :-). Patch by Daniel M Gessel! 
llvm-svn: 60958
 2008-12-12 18:49:09 +00:00
Nick Lewycky
51228d6707 Revert my re-instated reverted commit, fixes the bootstrap build on x86-64 linux. 
llvm-svn: 60951
 2008-12-12 17:09:07 +00:00
Duncan Sands
06ecf57a87 When using a 4 byte jump table on a 64 bit machine, 
do an extending load of the 4 bytes rather than a
potentially illegal (type) i32 load followed by a
sign extend.

llvm-svn: 60945
 2008-12-12 08:13:38 +00:00
Duncan Sands
9f8a7550b6 Don't make use of an illegal type (i64) when 
lowering f64 function arguments.

llvm-svn: 60944
 2008-12-12 08:05:40 +00:00
Chris Lattner
c66a5f659a fix some incorrect links. 
llvm-svn: 60919
 2008-12-12 04:20:01 +00:00
Mikhail Glushenkov
645ac8a052 Man page update. 
llvm-svn: 60918
 2008-12-12 02:34:56 +00:00
Mon P Wang
53d0c96c6f Added support for SELECT v8i8 v4i16 for X86 (MMX) 
Added support for TRUNC v8i16 to v8i8 for X86 (MMX)

llvm-svn: 60916
 2008-12-12 01:25:51 +00:00
Bill Wendling
5d026e47c1 Redo the arithmetic with overflow architecture. I was changing the semantics of 
ISD::ADD to emit an implicit EFLAGS. This was horribly broken. Instead, replace
the intrinsic with an ISD::SADDO node. Then custom lower that into an
X86ISD::ADD node with a associated SETCC that checks the correct condition code
(overflow or carry). Then that gets lowered into the correct X86::ADDOvf
instruction.

Similar for SUB and MUL instructions.

llvm-svn: 60915
 2008-12-12 00:56:36 +00:00
Mikhail Glushenkov
0f084f3469 Fix W3C validator errors. 
llvm-svn: 60912
 2008-12-11 23:43:14 +00:00
Mikhail Glushenkov
7ac8dfbc99 Use correct file for the llvmc tutorial. 
llvm-svn: 60910
 2008-12-11 23:33:33 +00:00
Mikhail Glushenkov
24b3fd0fa8 Update the auto-generated llvmc documentation. 
llvm-svn: 60909
 2008-12-11 23:24:40 +00:00
Mikhail Glushenkov
0ed5bf3b7a Add a '-Wo,' option that passes options to opt. 
llvm-svn: 60902
 2008-12-11 22:19:14 +00:00
Evan Cheng
dfa19a4009 Fix a 80 col. violation. 
llvm-svn: 60901
 2008-12-11 22:02:02 +00:00
Misha Brukman
ef75e64b5f * Removed stray </p> tag 
* Whitespace cleanups

llvm-svn: 60891
 2008-12-11 19:44:51 +00:00
Misha Brukman
b8ad12675e * <div align=center> is not valid HTML 4.01 - removed alignment 
* <sup> cannot appear inside a <pre> - replaced <pre> with <tt> and <br>
* Added standard "Notes" section
* Sprinkled fixed-width <tt> tags in a few places for consistency

llvm-svn: 60889
 2008-12-11 19:37:04 +00:00
Misha Brukman
7a584de2b9 Removed warnings from HTML 4.01 validator: trailing slashes in <br> and <img> 
tags are not needed in HTML, only XML.

llvm-svn: 60885
 2008-12-11 18:23:24 +00:00
Misha Brukman
102c921f0b Conform to the HTML 4.01 Strict specification. 
llvm-svn: 60884
 2008-12-11 18:14:06 +00:00
Nick Lewycky
312d95be37 Sneaky, sneaky: move the -1 to the outside of the SMax. Reinstate the 
optimization of SGE/SLE with unit stride, now that it works properly.

llvm-svn: 60881
 2008-12-11 17:40:14 +00:00
Misha Brukman
74411f221b Global replace of yellow W3C "valid HTML/CSS" icons with blue ones. 
llvm-svn: 60880
 2008-12-11 17:34:48 +00:00
Misha Brukman
5cb753f05b * Fixed formatting of command descriptions to be consistent: 
- descriptions on new line
  - no terminating period
* Changed the W3C logos from yellow to blue to not stand out

llvm-svn: 60879
 2008-12-11 17:12:52 +00:00
Torok Edwin
9d454874f3 fix grammar, thanks Duncan! 
llvm-svn: 60875
 2008-12-11 11:44:49 +00:00
Mikhail Glushenkov
751b67348d Merge Base.td and Tools.td. 
This stuff is not used outside Base.td, and with the conversion of the
compilation graph to string-based format became much less (if at all)
useful.

llvm-svn: 60873
 2008-12-11 10:38:06 +00:00
Torok Edwin
34056e3cc9 introduce BasicBlock::getUniquePredecessor() 
llvm-svn: 60872
 2008-12-11 10:36:07 +00:00
Mikhail Glushenkov
e50ddcc42a Put Edge* classes into anonymous namespace. 
Prevents conflicts between plugins.

llvm-svn: 60871
 2008-12-11 10:34:18 +00:00
Mon P Wang
f578029326 Avoid generating a convert_rndsat node when the src and dest type are the same. 
llvm-svn: 60869
 2008-12-11 03:30:13 +00:00
Bill Wendling
060f17c854 Clarify FIXME. 
llvm-svn: 60867
 2008-12-11 01:26:44 +00:00
Mon P Wang
80cfaeecfe Whitespace clean up (tabs with spaces) 
llvm-svn: 60866
 2008-12-11 00:44:22 +00:00
Mon P Wang
4448877ed7 Make fix for r60829 less conservative to allow the proper optimization for 
vec_extract-sse4.ll.

llvm-svn: 60865
 2008-12-11 00:26:16 +00:00
Bill Wendling
02555039a0 Add a newline after this debug output. 
llvm-svn: 60861
 2008-12-10 23:24:43 +00:00
Misha Brukman
b800b6704e s/A Few Coding Standards/LLVM Coding Standards/g 
llvm-svn: 60859
 2008-12-10 23:07:02 +00:00
Bill Wendling
292263313b If ADD, SUB, or MUL have an overflow bit that's used, don't do transformation on 
them. The DAG combiner expects that nodes that are transformed have one value
result.

llvm-svn: 60857
 2008-12-10 22:36:00 +00:00
Evan Cheng
fc73640f83 Preliminary ARM debug support based on patch by Mikael of FlexyCore. 
llvm-svn: 60851
 2008-12-10 21:54:21 +00:00
Evan Cheng
487c9ff802 Some code clean up. 
llvm-svn: 60850
 2008-12-10 21:49:05 +00:00
Bill Wendling
417d88be16 Only perform SETO/SETC to JO/JC conversion if extractvalue is coming from an arithmetic with overflow instruction. 
llvm-svn: 60844
 2008-12-10 19:44:24 +00:00
Nuno Lopes
a74ba17dd5 fix typo. thanks Baldrick for noticing 
llvm-svn: 60841
 2008-12-10 16:11:10 +00:00
Nuno Lopes
8670647ad3 add gcc 4.1.2 from redhat to the list of broken compilers 
llvm-svn: 60840
 2008-12-10 16:01:22 +00:00
Duncan Sands
a9c24eb117 Update these instructions to the 2.4 release. 
llvm-svn: 60838
 2008-12-10 14:24:58 +00:00
Duncan Sands
81499a8e1c For amusement, implement SADDO, SSUBO, UADDO, USUBO 
for promoted integer types, eg: i16 on ppc-32, or
i24 on any platform.  Complete support for arbitrary
precision integers would require handling expanded
integer types, eg: i128, but I couldn't be bothered.

llvm-svn: 60834
 2008-12-10 12:30:42 +00:00
Duncan Sands
7abc3cd656 Mention the Ada and Fortran front-ends. 
llvm-svn: 60833
 2008-12-10 10:50:58 +00:00
Duncan Sands
ecb1273c5b Don't dereference the end() iterator. This was 
causing a bunch of failures when running
"make ENABLE_EXPENSIVE_CHECKS=1 check".

llvm-svn: 60832
 2008-12-10 09:38:36 +00:00
Mon P Wang
5f031c6120 Added a little more information that vector shifts require vector shift amount. 
llvm-svn: 60831
 2008-12-10 08:55:09 +00:00