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Author SHA1 Message Date
Nadav Rotem
ad2fd4eada Enhance constant folding of bitcast operations on vectors of floats. 
Add getAllOnesValue of FP numbers to Constants and APFloat.
Add more tests.

llvm-svn: 125776
 2011-02-17 21:22:27 +00:00
Chris Lattner
e797a8c29f add is always integer, thanks to Frits for noticing this. 
llvm-svn: 125774
 2011-02-17 20:55:29 +00:00
David Greene
244920d662 [AVX] Recorganize X86ShuffleDecode into its own library 
(LLVMX86Utils.a) to break cyclic library dependencies between
LLVMX86CodeGen.a and LLVMX86AsmParser.a.  Previously this code was in
a header file and marked static but AVX requires some additional
functionality here that won't be used by all clients.  Since including
unused static functions causes a gcc compiler warning, keeping it as a
header would break builds that use -Werror.  Putting this in its own
library solves both problems at once.

llvm-svn: 125765
 2011-02-17 19:18:59 +00:00
Jakob Stoklund Olesen
65f52c387c Split local live ranges. 
A local live range is live in a single basic block. If such a range fails to
allocate, try to find a sub-range that would get a larger spill weight than its
interference.

llvm-svn: 125764
 2011-02-17 19:13:53 +00:00
Dan Gohman
71117af2db The labyrinthine X86 backend no longer appears to require 
these patterns.

llvm-svn: 125759
 2011-02-17 18:50:19 +00:00
Duncan Sands
9b4a2b4fe0 Fix wrong logic in promotion of signed mul-with-overflow (I pointed this out at 
the time but presumably my email got lost).  Examples where the previous logic
got it wrong: (1) a signed i8 multiply of 64 by 2 overflows, but the high part is
zero; (2) a signed i8 multiple of -128 by 2 overflows, but the high part is all
ones. 

llvm-svn: 125748
 2011-02-17 12:42:48 +00:00
NAKAMURA Takumi
00228d0c2c Triple::MinGW64 is deprecated and removed. We can use Triple::MinGW32 generally. 
No one uses *-mingw64. mingw-w64 is represented as {i686|x86_64}-w64-mingw32. In llvm side, i686 and x64 can be treated as similar way.

llvm-svn: 125747
 2011-02-17 12:24:17 +00:00
NAKAMURA Takumi
8d39c3a632 Fix whitespace. 
llvm-svn: 125746
 2011-02-17 12:23:50 +00:00
Duncan Sands
e0ece264ba This has been implemented. 
llvm-svn: 125738
 2011-02-17 08:16:56 +00:00
Duncan Sands
00610dbf64 Transform "A + B >= A + C" into "B >= C" if the adds do not wrap. Likewise for some 
variations (some of these were already present so I unified the code).  Spotted by my
auto-simplifier as occurring a lot.

llvm-svn: 125734
 2011-02-17 07:46:37 +00:00
Cameron Zwarich
443d4193ef Switch to SmallVector in SimpleRegisterCoalescing for a 3.5% speedup on 403.gcc. 
llvm-svn: 125728
 2011-02-17 06:52:07 +00:00
Cameron Zwarich
ebcd35fd5a Adjust indenting of arguments. 
llvm-svn: 125727
 2011-02-17 06:13:46 +00:00
Cameron Zwarich
5ea289952e Return Changed from SplitPHIEdges rather than always returning true. 
llvm-svn: 125726
 2011-02-17 06:13:43 +00:00
NAKAMURA Takumi
f9affc1dc9 lit/TestingConfig.py: Add the environment variable PRINTF_EXPONENT_DIGITS as workaround [PR6745] for mingw's tests. Danil Malyshev suggested this. 
FIXME: It does not improve MSVC's issue.

[Danil Malyshev] Defining PRINTF_EXPONENT_DIGITS env is the suggested way to make MinGW ANSI/POSIX compatible. This is not only about the case we are discussing, but in general, I'd like to have explicitly defined compatibility mode for all the tests running on MinGW.

llvm-svn: 125725
 2011-02-17 05:56:41 +00:00
Alexis Hunt
be0782975d Add serialization for Expr* arguments for attributes to clang tablegen files. 
Patch thanks to Zach Anderson.

llvm-svn: 125721
 2011-02-17 03:30:09 +00:00
Chris Lattner
6e936c247f preserve NUW/NSW when transforming add x,x 
llvm-svn: 125711
 2011-02-17 02:23:02 +00:00
Chris Lattner
79947d56ea filecheckize 
llvm-svn: 125710
 2011-02-17 02:21:03 +00:00
Nick Lewycky
4e7ec00a1d Fix thinko, basic blocks are SESE. The exits may have many edges though. 
llvm-svn: 125709
 2011-02-17 02:19:22 +00:00
Chris Lattner
035876162f add some notes on compares + binops. Remove redundant entries. 
llvm-svn: 125702
 2011-02-17 01:43:46 +00:00
Chris Lattner
828b97cdc2 fix PR9215, preventing -reassociate from clearing nsw/nuw when 
it swaps the LHS/RHS of a single binop.

llvm-svn: 125700
 2011-02-17 01:29:24 +00:00
Chris Lattner
9f4e529571 Add a few missed xforms from GCC PR14753 
llvm-svn: 125681
 2011-02-16 19:16:34 +00:00
Stuart Hastings
47e45a32a8 Swap VT and DebugLoc operands of getExtLoad() for consistency with 
other getNode() methods.  Radar 9002173.

llvm-svn: 125665
 2011-02-16 16:23:55 +00:00
Rafael Espindola
3c40b1fab0 Add a debug obj-path option to make it easy to keep the .o produce by LTO. 
llvm-svn: 125663
 2011-02-16 11:19:44 +00:00
Eli Friedman
b409f8da64 Remove outdated README entry. 
llvm-svn: 125660
 2011-02-16 07:41:19 +00:00
Eli Friedman
5f848d70fa Remove outdated README entry. 
llvm-svn: 125659
 2011-02-16 07:18:18 +00:00
Eli Friedman
30a64ae1b9 Update README entry. 
llvm-svn: 125658
 2011-02-16 07:17:44 +00:00
Eric Christopher
25956e0c47 Refactor zero folding slightly. Clean up todo. 
llvm-svn: 125651
 2011-02-16 04:50:12 +00:00
Rafael Espindola
4ef1268b39 Gas is very inconsistent about when a relaxation/relocation is needed. Do 
the right thing and stop trying to copy it. Fixes PR8944.

llvm-svn: 125648
 2011-02-16 03:25:55 +00:00
Eric Christopher
8965ba39fb The change for PR9190 wasn't quite right. We need to avoid making the 
transformation if we can't legally create a build vector of the correct
type. Check that we can make the transformation first, and add a TODO to
refactor this code with similar cases.

Fixes: PR9223 and rdar://9000350
llvm-svn: 125631
 2011-02-16 01:10:03 +00:00
Eric Christopher
2d3de0727f Add testcase for PR9190. 
llvm-svn: 125630
 2011-02-16 01:08:31 +00:00
Rafael Espindola
b59fdeb3de Add support for pushsection and popsection. Patch by Joerg Sonnenberger. 
llvm-svn: 125629
 2011-02-16 01:08:29 +00:00
Evan Cheng
1a5aa79d0e Remove a duplicated check. 
llvm-svn: 125625
 2011-02-16 00:37:02 +00:00
Evan Cheng
d3928a2c3a Some single precision VFP instructions may be executed on NEON pipeline, but not double precision ones. 
llvm-svn: 125624
 2011-02-16 00:35:02 +00:00
Nick Lewycky
5c854580b2 Teach PatternMatch that splat vectors could be floating point as well as 
integer. Fixes PR9228!

llvm-svn: 125613
 2011-02-15 23:13:23 +00:00
Roman Divacky
3277e18a42 Add support for parsing [expr]. 
This is submitted by Joerg Sonnenberger and fixes his PR8685.

llvm-svn: 125595
 2011-02-15 20:43:39 +00:00
Jakob Stoklund Olesen
d8c18daea5 Teach ARMLoadStoreOptimizer to remove kill flags from merged instructions as well. 
This is necessary to avoid a crash in certain tangled situations where a kill
flag is first correctly moved to a merged instruction, and then needs to be
moved again:

  STR %R0, a...
  STR %R0<kill>, b...

First becomes:

  STR %R0, b...
  STM a, %R0<kill>, ...

and then:

  STM a, %R0, ...
  STM b, %R0<kill>, ...

We can now remove the kill flag from the merged STM when needed. 8960050.

llvm-svn: 125591
 2011-02-15 19:51:58 +00:00
Devang Patel
d5b7c28519 Ignore DBG_VALUE machine instructions while constructing instruction ranges based on location info. 
Machine instruction range consisting of only DBG_VALUE MIs only contributes consecutive labels in assembly output, which is harmless, and empty scope entry in DebugInfo, which confuses debugger tools.

llvm-svn: 125577
 2011-02-15 17:56:09 +00:00
Argyrios Kyrtzidis
bd74fadd7b Implement a function from PathV2 whose definition is missing. 
llvm-svn: 125574
 2011-02-15 17:51:19 +00:00
Devang Patel
f927b9703e Move DbgInfoPrinter specific utlities inside DbgInfoPrinter.cpp 
llvm-svn: 125571
 2011-02-15 17:36:11 +00:00
Devang Patel
8b9081b0bf Print function info. Patch by Minjang Kim. 
llvm-svn: 125567
 2011-02-15 17:24:56 +00:00
Duncan Sands
061150ac1b Spelling fix: consequtive -> consecutive. 
llvm-svn: 125563
 2011-02-15 09:23:02 +00:00
Argyrios Kyrtzidis
f19978df28 When tablegen'ing the clang analyzer checkers: 
-Use the tablegen class name for the checker class name.
-Mark checker packages as hidden/not hidden.

llvm-svn: 125558
 2011-02-15 07:42:16 +00:00
Nadav Rotem
5306a4ae96 Fix 9216 - Endless loop in InstCombine pass. 
The pattern "A&(A^B) -> A & ~B" recreated itself because ~B is
actually a xor -1.

llvm-svn: 125557
 2011-02-15 07:13:48 +00:00
Evan Cheng
c6f645610e Fix thinko. Cmp can be the first instruction in a MBB. 
llvm-svn: 125552
 2011-02-15 05:00:24 +00:00
Devang Patel
091c6a8907 Do not forget DebugLoc! 
llvm-svn: 125547
 2011-02-15 02:02:30 +00:00
Chris Lattner
ccb24014c2 tidy up a bit. 
llvm-svn: 125546
 2011-02-15 01:56:08 +00:00
Chris Lattner
f661ea3f4a Minor fixes to tutorial, patch by Benjamin Meyer! 
llvm-svn: 125544
 2011-02-15 00:24:32 +00:00
Chris Lattner
f800339278 fix comments 
llvm-svn: 125543
 2011-02-15 00:23:53 +00:00
Chris Lattner
db204cbe42 convert ConstantVector::get to use ArrayRef. 
llvm-svn: 125537
 2011-02-15 00:14:00 +00:00
Chris Lattner
0848675c80 fix some typos. 
llvm-svn: 125536
 2011-02-15 00:06:37 +00:00