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Author SHA1 Message Date
Evan Cheng
f112eb3b1c Temporarily disabling SSE4 until we fix the encoding issues. 
llvm-svn: 49129
 2008-04-03 04:49:54 +00:00
Evan Cheng
497c607fae Backing out 48222 temporarily. 
llvm-svn: 49124
 2008-04-03 03:13:16 +00:00
Dan Gohman
214b27286d Move instruction flag inference out of InstrInfoEmitter and into 
CodeGenDAGPatterns, where it can be used in other tablegen backends.
This allows the inference to be done for DAGISelEmitter so that it
gets accurate mayLoad/mayStore/isSimpleLoad flags. 

This brings MemOperand functionality back to where it was before
48329. However, it doesn't solve the problem of anonymous patterns
which expand to code that does loads or stores.

llvm-svn: 49123
 2008-04-03 00:02:49 +00:00
Dan Gohman
5b2503097e Suppress the 128-bit integer typedef on 32-bit targets, because 
it causes compile errors.

llvm-svn: 49122
 2008-04-02 23:52:49 +00:00
Dale Johannesen
ebfa6edc65 Testcase for EH with functions whose names are stripped. 
llvm-svn: 49111
 2008-04-02 20:16:41 +00:00
Dale Johannesen
8b316fb8bc Make EH work with unnamed functions. Reenable running 
StripSymbols when EH is on.

llvm-svn: 49110
 2008-04-02 20:10:52 +00:00
Dan Gohman
4949a9c308 Partial CBackend support for 128-bit integers. This is needed 
now that llvm-gcc is lowering appropriately-sized struct returns
to i128 on x86-64.

llvm-svn: 49109
 2008-04-02 19:40:14 +00:00
David Greene
0ca05878fe Iterators folloring a SmallVector erased element are invalidated so 
don't access cached iterators from after the erased element.

Re-apply 49056 with SmallVector support.

llvm-svn: 49106
 2008-04-02 18:24:46 +00:00
Evan Cheng
748a0c9215 Now that I am told MachineRegisterInfo also tracks physical register uses / defs, I can do away with the horribleness I introduced a while back. It's impossible to detect if there is any use of a physical register below an instruction (and before any def of the register) with some cheap book keeping. 
llvm-svn: 49105
 2008-04-02 18:04:08 +00:00
Evan Cheng
4e841d67ed Remove #include<map> from LiveVariables.h. Not referenced. 
llvm-svn: 49099
 2008-04-02 17:23:50 +00:00
Dale Johannesen
84a1314ea1 Cosmetic changes per EH patch review feedback. 
llvm-svn: 49096
 2008-04-02 17:04:45 +00:00
Torok Edwin
b96b953a5c Add new file Support/DataFlow.h. 
It allows Use-Def and Def-Use relations to be treated as graphs.

llvm-svn: 49088
 2008-04-02 14:57:52 +00:00
Anton Korobeynikov
d3330dfbf6 Add new CC lowering rule: provide a list of registers, which can be 'shadowed', 
when some another register is used for argument passing.
Currently is used on Win64.

llvm-svn: 49079
 2008-04-02 05:23:57 +00:00
Owen Anderson
e2690ed8b6 In some situations, we need to check for local interferences between the PHI 
node and its inputs.

llvm-svn: 49070
 2008-04-02 03:00:13 +00:00
Owen Anderson
249571b638 Correctly mark a valno that was previous defined by a PHI node as having an 
unknown defining inst after PHI elimination.

llvm-svn: 49069
 2008-04-02 02:12:45 +00:00
Chris Lattner
0d6e900c28 more edits from Jon Sargeant 
llvm-svn: 49065
 2008-04-02 00:38:26 +00:00
Dale Johannesen
79633a914f Recommitting EH patch; this should answer most of the 
review feedback.
-enable-eh is still accepted but doesn't do anything.
EH intrinsics use Dwarf EH if the target supports that,
and are handled by LowerInvoke otherwise.
The separation of the EH table and frame move data is,
I think, logically figured out, but either one still
causes full EH info to be generated (not sure how to
split the metadata correctly).
MachineModuleInfo::needsFrameInfo is no longer used and
is removed.

llvm-svn: 49064
 2008-04-02 00:25:04 +00:00
Evan Cheng
8a61b02bd8 1. Drop default inline threshold back down to 200. 
2. Do not use # of basic blocks as part of the cost computation since it doesn't really figure into function size.
3. More aggressively inline function with vector code.

llvm-svn: 49061
 2008-04-01 23:59:29 +00:00
Tanya Lattner
221aec3ddb Reverting 49056 due to the build being broken. 
llvm-svn: 49060
 2008-04-01 23:41:44 +00:00
Evan Cheng
e1eee9570f ReMat of load from stub in pic mode extends the life of pic base. Currently spiller doesn't do a good job of estimating the impact. Disable for now. 
llvm-svn: 49059
 2008-04-01 23:26:12 +00:00
David Greene
f322cc7462 Iterators folloring a SmallVector erased element are invalidated so 
don't access cached iterators from after the erased element.

llvm-svn: 49056
 2008-04-01 22:14:23 +00:00
Bill Wendling
fb7564e94c Fix compilation errors on MSVC. Patch by Argiris Kirtzidis! 
llvm-svn: 49055
 2008-04-01 22:09:20 +00:00
Evan Cheng
5c98bdbc4f Remove unnecessary and non-deterministic checking code. Re-enable remat of load from gv stub. 
llvm-svn: 49054
 2008-04-01 21:38:20 +00:00
Evan Cheng
44cdd4272c Re-materialization is for uses only. 
llvm-svn: 49053
 2008-04-01 21:37:32 +00:00
Dan Gohman
a3e01dc1ec Don't use __bzero for memset if the second argument isn't zero. 
llvm-svn: 49050
 2008-04-01 20:56:18 +00:00
Dan Gohman
168b2b1300 Speculatively micro-optimize memory-zeroing calls on Darwin 10. 
llvm-svn: 49048
 2008-04-01 20:38:36 +00:00
Dale Johannesen
8813206b7f Revert 49006 for the moment. 
llvm-svn: 49046
 2008-04-01 20:00:57 +00:00
Chris Lattner
c0850245b7 add a dropped hunk from Jon Sargeant's patch. 
llvm-svn: 49045
 2008-04-01 18:47:32 +00:00
Chris Lattner
a0dbb9a92a make langref more precise, wave 1, from Jon Sargeant 
llvm-svn: 49044
 2008-04-01 18:45:27 +00:00
Owen Anderson
b30608ce7a Don't dereference MBB->end(). 
llvm-svn: 49043
 2008-04-01 18:05:08 +00:00
Chris Lattner
d141d16ed7 Change the MemoryBuffer::getFile* methods to take just a pointer to the 
start of a filename, not a filename+length.  All clients can produce a
null terminated name, and the system api's require null terminated 
strings anyway.

llvm-svn: 49041
 2008-04-01 18:04:03 +00:00
Chris Lattner
4a8cb91c2d minor typo 
llvm-svn: 49040
 2008-04-01 18:02:36 +00:00
Evan Cheng
d7f2ac9a0a Disabling remat of load from gv stub (temporarily) again to fix llvmgcc bootstrap miscompare. 
llvm-svn: 49037
 2008-04-01 07:33:13 +00:00
Chris Lattner
0dc7a8221d add some #includes. 
llvm-svn: 49036
 2008-04-01 06:25:23 +00:00
Chris Lattner
4614369b45 MappedFile is dead, remove it. 
llvm-svn: 49035
 2008-04-01 06:20:44 +00:00
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