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96422 Commits

Author SHA1 Message Date
Peter Collingbourne e57e9ef9b7 Remove static_casts from SemaDeclAttr.cpp 
llvm-svn: 120053
 2010-11-23 20:45:58 +00:00
Howard Hinnant 53a3dfcf98 Update testsuite strucuture to latest draft 
llvm-svn: 120052
 2010-11-23 20:45:26 +00:00
Duncan Sands 0488d564e1 Rename SimplifyDistributed to the more meaningfull name SimplifyByFactorizing. 
llvm-svn: 120051
 2010-11-23 20:42:39 +00:00
Howard Hinnant 2066341b0d Update testsuite strucuture to latest draft 
llvm-svn: 120050
 2010-11-23 20:41:07 +00:00
Benjamin Kramer 94a622af4c The srem -> urem transform is not safe for any divisor that's not a power of two. 
E.g. -5 % 5 is 0 with srem and 1 with urem.

Also addresses Frits van Bommel's comments.

llvm-svn: 120049
 2010-11-23 20:33:57 +00:00
Chris Lattner 966b25b938 tidy up code, add a comment about dir caching. 
llvm-svn: 120048
 2010-11-23 20:30:42 +00:00
Howard Hinnant 165e25c974 Update testsuite strucuture to latest draft 
llvm-svn: 120047
 2010-11-23 20:29:54 +00:00
Howard Hinnant 1435748d25 Update testsuite strucuture to latest draft 
llvm-svn: 120046
 2010-11-23 20:27:28 +00:00
Howard Hinnant 4030e72457 Update testsuite strucuture to latest draft 
llvm-svn: 120045
 2010-11-23 20:26:48 +00:00
Duncan Sands 433c1679cf Replace calls to ConstantFoldInstruction with calls to SimplifyInstruction 
in two places that are really interested in simplified instructions, not
constants.

llvm-svn: 120044
 2010-11-23 20:26:33 +00:00
Howard Hinnant 46cc61ea7c Update testsuite strucuture to latest draft 
llvm-svn: 120043
 2010-11-23 20:25:10 +00:00
Duncan Sands bb2cd025a9 Constant folding here is pointless, because InstructionSimplify 
(which does constant folding and more) is called a few lines
later.

llvm-svn: 120042
 2010-11-23 20:24:21 +00:00
Howard Hinnant 968df4fdff Update testsuite strucuture to latest draft 
llvm-svn: 120041
 2010-11-23 20:22:13 +00:00
Howard Hinnant e8ce332127 Update testsuite strucuture to latest draft 
llvm-svn: 120040
 2010-11-23 20:21:36 +00:00
Chris Lattner ea61b32c4a replicate a terrible hack to fix a build error on VC++ 
llvm-svn: 120039
 2010-11-23 20:07:39 +00:00
Chris Lattner 8f0583daa2 simplify the cache miss handling code, eliminating CacheMissing. 
llvm-svn: 120038
 2010-11-23 20:05:15 +00:00
Chris Lattner 5769c3dffd factor the "cache miss" handling code out of FM into a static 
method in FileSystemStatCache.

llvm-svn: 120037
 2010-11-23 19:56:39 +00:00
Howard Hinnant 274541968b Update testsuite strucuture to latest draft 
llvm-svn: 120036
 2010-11-23 19:52:19 +00:00
Jason W Kim 8e21bf84e8 Move the ARM reloc constants to Support/ELF.h 
llvm-svn: 120035
 2010-11-23 19:40:36 +00:00
Bob Wilson d7d2cf7842 Recognize sign/zero-extended constant BUILD_VECTORs for VMULL operations. 
We need to check if the individual vector elements are sign/zero-extended
values.  For now this only handles constants values.  Radar 8687140.

llvm-svn: 120034
 2010-11-23 19:38:38 +00:00
Bob Wilson b91ae1ac52 Fix copy-and-paste error in exception message. 
llvm-svn: 120033
 2010-11-23 19:38:34 +00:00
Chris Lattner b3c814538b r120013 dropped passing in the precomputed file size to 
MemoryBuffer::getFile, causing us to pick up a fstat for
every file.  Restore the optimization.

llvm-svn: 120032
 2010-11-23 19:38:22 +00:00
Chris Lattner 2a6fa47b26 PCH files only cache successful stats. Remove the code that reads/writes 
the result code of the stat to/from the PCH file since it is always 0.

llvm-svn: 120031
 2010-11-23 19:28:12 +00:00
Chris Lattner 226efd356c rework the stat cache, pulling it out of FileManager.h into 
its own header and giving it some more structure.  No 
functionality change.

llvm-svn: 120030
 2010-11-23 19:19:34 +00:00
Howard Hinnant e5cb278766 Update testsuite strucuture to latest draft 
llvm-svn: 120029
 2010-11-23 19:15:49 +00:00
Benjamin Kramer b5afa65b0a InstCombine: Reduce "X shift (A srem B)" to "X shift (A urem B)" iff B is positive. 
This allows to transform the rem in "1 << ((int)x % 8);" to an and.

llvm-svn: 120028
 2010-11-23 18:52:42 +00:00
Howard Hinnant e3120ed1bf N3188 - Revision to N3113: Async Launch Policies (CH 36) 
llvm-svn: 120027
 2010-11-23 18:33:54 +00:00
Duncan Sands 60813f96e0 Propagate LeftDistributes and RightDistributes into their only uses. 
Stylistic improvement suggested by Frits van Bommel.

llvm-svn: 120026
 2010-11-23 15:28:14 +00:00
Duncan Sands 22df741687 Fix typo pointed out by Frits van Bommel and Marius Wachtler. 
llvm-svn: 120025
 2010-11-23 15:25:34 +00:00
Duncan Sands adc7771f18 Exploit distributive laws (eg: And distributes over Or, Mul over Add, etc) in a 
fairly systematic way in instcombine.  Some of these cases were already dealt
with, in which case I removed the existing code.  The case of Add has a bunch of
funky logic which covers some of this plus a few variants (considers shifts to be
a form of multiplication), which I didn't touch.  The simplification performed is:
A*B+A*C -> A*(B+C).  The improvement is to do this in cases that were not already
handled [such as A*B-A*C -> A*(B-C), which was reported on the mailing list], and
also to do it more often by not checking for "only one use" if "B+C" simplifies.

llvm-svn: 120024
 2010-11-23 14:23:47 +00:00
Kalle Raiskila e1b6c273b8 Division by pow-of-2 is not cheap on SPU, do it with 
shifts.

llvm-svn: 120022
 2010-11-23 13:27:59 +00:00
Rafael Espindola f6c05b1d01 Implement the rex64 prefix. 
llvm-svn: 120017
 2010-11-23 11:23:24 +00:00
Duncan Sands a021988d64 Expand a little on the description of what InstructionSimplify does. 
llvm-svn: 120016
 2010-11-23 10:50:08 +00:00
Duncan Sands 763dec0ab8 Clarify that constant folding of instructions applies when all operands 
are constant.  There was in fact one exception to this (phi nodes) - so
remove that exception (InstructionSimplify handles this so there should
be no loss).

llvm-svn: 120015
 2010-11-23 10:16:18 +00:00
John McCall 20c00e0e7b This test does not need to test the alignment of pointers. Make it pass 
on 64-bit systems.

llvm-svn: 120014
 2010-11-23 10:15:48 +00:00
Chris Lattner 26b5c190f8 tidy up. Split FileManager::getBufferForFile into 
two copies, since they are fundamentally different
operations and the StringRef one should go away
(it shouldn't be part of FileManager at least).

Remove some dead arguments.

llvm-svn: 120013
 2010-11-23 09:19:42 +00:00
Chris Lattner 7219a5db6e don't allow remapping PTH file paths with -fworking-directory, the 
client should just pass in absolute paths.

llvm-svn: 120012
 2010-11-23 09:01:31 +00:00
Chris Lattner 5631b052c3 reduce indentation and use early outs, to make it easier to read 
this code. no functionality change.

llvm-svn: 120011
 2010-11-23 08:50:03 +00:00
Chris Lattner 5159f6162e now the FileManager has a FileSystemOpts ivar, stop threading 
FileSystemOpts through a ton of apis, simplifying a lot of code.
This also fixes a latent bug in ASTUnit where it would invoke
methods on FileManager without creating one in some code paths
in cindextext.

llvm-svn: 120010
 2010-11-23 08:35:12 +00:00
Rafael Espindola 5c1d4e3b1e Invalidate the layout on any relaxation, not just Instructions. Bug found by David Meyer. 
While here, remove unused argument and rename UpdateForSlide to Invalidate.

llvm-svn: 120009
 2010-11-23 08:08:33 +00:00
Chris Lattner ec39c9d3d6 make this file be self contained. 
llvm-svn: 120008
 2010-11-23 08:05:27 +00:00
Chris Lattner 3f5a9efb2d give FileManager a 'FileSystemOptions' ivar, which will be used 
to simplify a bunch of code in it.  It should ultimately get inlined
into FileManager.

llvm-svn: 120007
 2010-11-23 07:51:02 +00:00
Rafael Espindola 3c7cab1402 Produce a relocation for pcrel absolute values. Based on a patch by David Meyer. 
llvm-svn: 120006
 2010-11-23 07:20:12 +00:00
Francois Pichet ce87a7e45c long => int to make the test pass on system where sizeof(long) = 64. 
llvm-svn: 120005
 2010-11-23 07:15:13 +00:00
Zhanyong Wan 19ec4ee093 Fix a typo in a comment. 
llvm-svn: 120004
 2010-11-23 06:43:05 +00:00
Cameron Zwarich 767a389fa5 Optimize a common case in the Lengauer-Tarjan dominators algorithm. This gives a 
9.7% speedup running domtree on test-suite.

Reviewed by Chris Lattner.

llvm-svn: 120003
 2010-11-23 06:32:37 +00:00
Chris Lattner 2dd97d2d60 Revert functionality doug added in r98575 that was never 
documented and only used by some clang stuff I just removed.

llvm-svn: 120002
 2010-11-23 06:09:51 +00:00
Chris Lattner 4ac569b2c6 Partially revert Doug's PCH validation patch (r98585). 
This patch completely defeated the "passing in a prestat'd size 
to MemoryBuffer" optimization, leading to an extra fstat call for
every buffer opened, in order to find out if the datestamp and size 
of the file on disk matches what is in the stat cache.

I fully admit that I don't completely understand what is going on here:
why punish code when a stat cache isn't in use?  what is the point of a
stat cache if you have to turn around and stat stuff to validate it?

To resolve both these issues, just drop the modtime check and check the
file size, which is the important thing anyway.  This should also resolve
PR6812, because presumably windows is stable when it comes to file sizes.
If the modtime is actually important, we should get it and keep it on the
first stat.

This eliminates 833 fstat syscalls when processing Cocoa.h, speeding up
system time on -Eonly Cocoa.h  from 0.041 to 0.038s.

llvm-svn: 120001
 2010-11-23 06:09:11 +00:00
Francois Pichet 0c71f6c5d3 Microsoft C anonymous struct implementation. 
Documentation: http://msdn.microsoft.com/en-us/library/z2cx9y4f.aspx

llvm-svn: 120000
 2010-11-23 06:07:27 +00:00
Rafael Espindola 6e13aa1d3b Reuse data fragments while lowering. Patch by David Meyer. 
llvm-svn: 119999
 2010-11-23 05:49:35 +00:00