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Author SHA1 Message Date
Chris Lattner
3e9e5f498e Implement Path::MapInFilePages/UnMapFilePages on unix, which 
provides fast MappedFile::getFile for large files.

llvm-svn: 49034
 2008-04-01 06:16:24 +00:00
Chris Lattner
7f88d9043f Reimplement MemoryBuffer::getFile with three enhancements: 
1) stop using MappedFile.
2) if profitable use the sys::path::MapInFilePages api to
   read the file.
3) otherwise fallback to read.

When sys::path::MapInFilePages is implemented, this provides
several benefits:

#1: this avoids fragmenting memory for small files.
#2: this avoids extraneous stat calls when the file size is known.
#3: this only keeps the file descriptor open while reading the 
    file, not for the duration of the lifetime of the memory 
    buffer.  This fixes a serious clang FD 'leak' problem.

I believe that this will work on a win32 machine, but I don't have
one to test on.  I'd appreciate it if someone could check.

llvm-svn: 49031
 2008-04-01 06:05:21 +00:00
Chris Lattner
2e3d2c6ec8 Stub out some sys::Path::MapInFilePages/UnMapFilePages methods. 
llvm-svn: 49030
 2008-04-01 06:00:12 +00:00
Chris Lattner
5ba3ea7b4c change the archive stuff to use MemoryBuffer instead of mappedfile. 
MemoryBuffer is higher level and more closely matches the model
needed.

llvm-svn: 49029
 2008-04-01 04:26:46 +00:00
Chris Lattner
a638713d10 prune unneeded #includes 
llvm-svn: 49028
 2008-04-01 04:00:45 +00:00
Chris Lattner
9f1dcb3372 rewrite SourceFile to be in terms of MemoryBuffer, not MappedFile. 
llvm-svn: 49027
 2008-04-01 03:59:34 +00:00
Chris Lattner
0ee9b20a1b Make MappedFile::map return a const correct pointer, don't leak address space on Unix platforms. 
llvm-svn: 49026
 2008-04-01 03:49:38 +00:00
Chris Lattner
b29e4e90bc Remove the MappedFile::charBase member, rename base -> getBase() and 
make getBase() return a const-correct pointer.

llvm-svn: 49025
 2008-04-01 03:40:53 +00:00
Chris Lattner
c88457a8b2 Change DiffFilesWithTolerance to be written in terms of MemoryBuffer, 
not an mmapped file.  This more closely matches its requirements and
provides an implicitly null terminated buffer, something this
routine had to emulate itself before.

llvm-svn: 49024
 2008-04-01 03:39:49 +00:00
Chris Lattner
50d56e0f2b add an accessor. 
llvm-svn: 49023
 2008-04-01 03:20:31 +00:00
Chris Lattner
f2309c208a Remove MappedFile support for mapping files for write and exec 
and shared.  This complicates the design, is not used, and probably
doesn't even work.

llvm-svn: 49022
 2008-04-01 03:10:22 +00:00
Chris Lattner
b04ab612bf remove extraneous #include 
llvm-svn: 49021
 2008-04-01 03:01:15 +00:00
Chris Lattner
a4ddf7edfa add missing #includes 
llvm-svn: 49020
 2008-04-01 02:58:05 +00:00
Evan Cheng
c2f298f318 More soft fp fixes. 
llvm-svn: 49016
 2008-04-01 02:18:22 +00:00
Evan Cheng
ea4536577b Pasto. 
llvm-svn: 49014
 2008-04-01 02:00:09 +00:00
Evan Cheng
0d523a6c71 Add comment. 
llvm-svn: 49013
 2008-04-01 01:51:26 +00:00
Evan Cheng
a38ae9c502 Unbreak ARM / Thumb soft FP support. 
llvm-svn: 49012
 2008-04-01 01:50:16 +00:00
Dale Johannesen
1336104c02 Accept 'y' constraint (MMX) in inline asm. 
llvm-svn: 49011
 2008-04-01 00:57:48 +00:00
Chris Lattner
c7cc29f2a9 update comment. 
llvm-svn: 49010
 2008-04-01 00:54:39 +00:00
Chris Lattner
c3d03d3f10 cleanup the MappedFile API and comments. This removes and updates 
tons of out of date comments (really nothing throws here!) and fixes
some other fairly glaring issues: "size" used to return the size of 
the file *and* change it, depending on how you called it.

llvm-svn: 49009
 2008-04-01 00:53:25 +00:00
Chris Lattner
a0b425c6bc remove DEFINING_FILE_FOR for MappedFile.h 
llvm-svn: 49008
 2008-04-01 00:35:55 +00:00
Dale Johannesen
fa4433be71 Emit exception handling info for functions which are 
not marked nounwind, or for all functions when -enable-eh
is set, provided the target supports Dwarf EH.

llvm-gcc generates nounwind in the right places; other FEs
will need to do so also.  Given such a FE, -enable-eh should
no longer be needed.

llvm-svn: 49006
 2008-03-31 23:40:23 +00:00
Dale Johannesen
d9a5b77269 Mark functions in some tests as 'nounwind'. Generating 
EH info for these functions causes the tests to fail for
random reasons (e.g. looking for 'or' or counting lines
with asm-printer; labels count as lines.)

llvm-svn: 49003
 2008-03-31 23:20:09 +00:00
Evan Cheng
a3ce7b4c76 It's not safe to fold a load from GV stub or constantpool into a two-address use. 
llvm-svn: 49002
 2008-03-31 23:19:51 +00:00
Nate Begeman
68c767cb5c Actually disable crash reporting on Mac OS X, returning bugpoint to speedy 
crash miscompilations.

llvm-svn: 49000
 2008-03-31 22:19:25 +00:00
Dan Gohman
f7dfe555d7 Set blockBegin to point to the beginning of the block, 
not the end.

llvm-svn: 48999
 2008-03-31 22:08:00 +00:00
Evan Cheng
38a755499d Move reMaterialize() from TargetRegisterInfo to TargetInstrInfo. 
llvm-svn: 48995
 2008-03-31 20:40:39 +00:00
Dan Gohman
f223eaafcd Fix a DAGCombiner optimization to respect volatile qualification. 
llvm-svn: 48994
 2008-03-31 20:32:52 +00:00
Gordon Henriksen
c2c2b45acb Add a unified 'generated documentation' target so the web site script has a consistent target to use. 
llvm-svn: 48985
 2008-03-31 17:27:57 +00:00
Torok Edwin
348c0b39a0 test commit 
llvm-svn: 48984
 2008-03-31 17:09:58 +00:00
Gordon Henriksen
67b8fcce49 Reverting r48974. See PR2183 for details. 
llvm-svn: 48983
 2008-03-31 16:46:23 +00:00
Erick Tryzelaar
847ee3e279 Expose Function::viewCFG and Function::viewCFGOnly to bindings. 
llvm-svn: 48982
 2008-03-31 16:22:09 +00:00
Erick Tryzelaar
70c988926c There isn't any c++ code in LangImpl8.html, so use that 
instead of OCamlLangImpl8.html.

llvm-svn: 48979
 2008-03-31 08:50:45 +00:00
Erick Tryzelaar
389fa6b162 Chapter 5, 6, and 7 of the ocaml/kaleidoscope tutorial 
and fix some tabs in chapter 3 and 4.

llvm-svn: 48978
 2008-03-31 08:44:50 +00:00
Evan Cheng
38bfff8a16 Re-apply 48911. 
llvm-svn: 48977
 2008-03-31 07:54:19 +00:00
Evan Cheng
39c43815d2 The support for remat of instructions with a register operand is hackish, to say the least. Since the register operand guaranteed to be PIC base and that it is already live at all uses, we are making sure it will not be spilled after its uses are rematerialized for both performance and correctness reasons. 
llvm-svn: 48976
 2008-03-31 07:53:30 +00:00
Erick Tryzelaar
fbddbaf115 Quote the ocaml executables 
realazthat in #llvm was having problems building llvm
because configure was finding an ocaml executable in
a directory with a space in it's name. This patch
puts quotes around the name so that llvm can build for
him.

llvm-svn: 48974
 2008-03-31 03:46:43 +00:00
Owen Anderson
5d9ba35723 Fix a major bug in the DFS calculation. Thanks for Christopher Lamb for pointing this out. 
llvm-svn: 48973
 2008-03-31 01:39:20 +00:00
Nate Begeman
610aa2511c Don't eliminate bitcast instructions that change the type of a pointer 
llvm-svn: 48971
 2008-03-31 00:22:16 +00:00
Erick Tryzelaar
1bca06f4c6 Tweak build system to allow for installing the tutorial and uninstalling the docs. 
llvm-svn: 48968
 2008-03-30 20:32:18 +00:00
Duncan Sands
39afad0613 Fix comment typo. 
llvm-svn: 48967
 2008-03-30 19:38:55 +00:00
Erick Tryzelaar
56a7eb661d Fix some documentation for the tutorial. 
llvm-svn: 48966
 2008-03-30 19:14:31 +00:00
Nick Lewycky
7d33dc0878 Moved from PR1570. 
llvm-svn: 48965
 2008-03-30 19:07:11 +00:00
Chris Lattner
b529e3f1d8 stop building llvmc. 
llvm-svn: 48964
 2008-03-30 18:58:05 +00:00
Chris Lattner
49e9edd6f6 Fix "Control reaches the end of non-void function" warnings, 
patch by David Chisnall.

llvm-svn: 48963
 2008-03-30 18:22:13 +00:00
Chris Lattner
a69d949942 minor code cleanups, allow constant folding sinf/cosf. 
llvm-svn: 48961
 2008-03-30 18:02:00 +00:00
Chris Lattner
fe09b7f41f fix typo, PR2181 
llvm-svn: 48954
 2008-03-30 16:59:21 +00:00
Erick Tryzelaar
1910b8741f Add chapter 3 and 4 of the ocaml/kaleidoscope tutorial. 
llvm-svn: 48949
 2008-03-30 09:57:12 +00:00
Evan Cheng
5eea2da8d5 Cosmetic changes. 
llvm-svn: 48947
 2008-03-29 18:34:22 +00:00
Anton Korobeynikov
128a14cad5 Honour another bunch of parameter attributes in llvm2cpp 
llvm-svn: 48942
 2008-03-29 11:25:49 +00:00