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Author SHA1 Message Date
Chris Lattner
c8cb8ef9c2 have instcombine preserve nsw/nuw/exact when sinking 
common operations through a phi. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125790 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 23:01:49 +00:00
Jakob Stoklund Olesen
0db841f9c2 Add basic register allocator statistics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125789 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 22:53:48 +00:00
Chris Lattner
1521e91fc4 fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125787 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 22:32:54 +00:00
Oscar Fuentes
742c0dd8fd New library: LLVMX86Utils. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125786 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 22:26:11 +00:00
Chris Lattner
4bd8217af3 fix instcombine merging GEPs through a PHI to only make the 
result inbounds if all of the inputs are inbounds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125785 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 22:21:26 +00:00
Nadav Rotem
093399cbf3 Enhance constant folding of bitcast operations on vectors of floats. 
Add getAllOnesValue of FP numbers to Constants and APFloat.
Add more tests.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125776 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 21:22:27 +00:00
Chris Lattner
bd9f6bf5cd add is always integer, thanks to Frits for noticing this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125774 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 20:55:29 +00:00
David Greene
583b68f34f [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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125765 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 19:18:59 +00:00
Jakob Stoklund Olesen
034a80d065 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125764 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 19:13:53 +00:00
Dan Gohman
64849ce66f The labyrinthine X86 backend no longer appears to require 
these patterns.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125759 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 18:50:19 +00:00
Duncan Sands
fbd53f79f5 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. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125748 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 12:42:48 +00:00
NAKAMURA Takumi
6904f05e60 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125747 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 12:24:17 +00:00
NAKAMURA Takumi
e310b3a2a3 Fix whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125746 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 12:23:50 +00:00
Duncan Sands
fe167c5a14 This has been implemented. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125738 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 08:16:56 +00:00
Duncan Sands
a77243300b 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125734 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 07:46:37 +00:00
Cameron Zwarich
2598b1f4ac Switch to SmallVector in SimpleRegisterCoalescing for a 3.5% speedup on 403.gcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125728 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 06:52:07 +00:00
Cameron Zwarich
61a733434d Adjust indenting of arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125727 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 06:13:46 +00:00
Cameron Zwarich
688521ca6f Return Changed from SplitPHIEdges rather than always returning true. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125726 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 06:13:43 +00:00
NAKAMURA Takumi
214c920818 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125725 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 05:56:41 +00:00
Sean Hunt
c85094f909 Add serialization for Expr* arguments for attributes to clang tablegen files. 
Patch thanks to Zach Anderson.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125721 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 03:30:09 +00:00
Chris Lattner
41429e3f1e preserve NUW/NSW when transforming add x,x 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125711 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 02:23:02 +00:00
Chris Lattner
3e468e1efa filecheckize 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125710 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 02:21:03 +00:00
Nick Lewycky
ccd279d057 Fix thinko, basic blocks are SESE. The exits may have many edges though. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125709 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 02:19:22 +00:00
Chris Lattner
cb40195641 add some notes on compares + binops. Remove redundant entries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125702 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 01:43:46 +00:00
Chris Lattner
de1d8a544c fix PR9215, preventing -reassociate from clearing nsw/nuw when 
it swaps the LHS/RHS of a single binop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125700 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 01:29:24 +00:00
Chris Lattner
5653f1f904 Add a few missed xforms from GCC PR14753 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125681 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-16 19:16:34 +00:00
Stuart Hastings
a901129169 Swap VT and DebugLoc operands of getExtLoad() for consistency with 
other getNode() methods.  Radar 9002173.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125665 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-16 16:23:55 +00:00
Rafael Espindola
5a287d7a03 Add a debug obj-path option to make it easy to keep the .o produce by LTO. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125663 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-16 11:19:44 +00:00
Eli Friedman
eb1dc98aa7 Remove outdated README entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125660 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-16 07:41:19 +00:00
Eli Friedman
fd51e95171 Remove outdated README entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125659 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-16 07:18:18 +00:00
Eli Friedman
c5cb996e9c Update README entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125658 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-16 07:17:44 +00:00
Eric Christopher
7bccf6abdc Refactor zero folding slightly. Clean up todo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125651 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-16 04:50:12 +00:00
Rafael Espindola
908159b46a Gas is very inconsistent about when a relaxation/relocation is needed. Do 
the right thing and stop trying to copy it. Fixes PR8944.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125648 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-16 03:25:55 +00:00
Eric Christopher
169e1552e7 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125631 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-16 01:10:03 +00:00
Eric Christopher
f621e3b6d6 Add testcase for PR9190. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125630 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-16 01:08:31 +00:00
Rafael Espindola
7768a9dce1 Add support for pushsection and popsection. Patch by Joerg Sonnenberger. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125629 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-16 01:08:29 +00:00
Evan Cheng
e32effb02f Remove a duplicated check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125625 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-16 00:37:02 +00:00
Evan Cheng
5eda282cd1 Some single precision VFP instructions may be executed on NEON pipeline, but not double precision ones. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125624 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-16 00:35:02 +00:00
Nick Lewycky
8a670edf1b Teach PatternMatch that splat vectors could be floating point as well as 
integer. Fixes PR9228!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125613 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-15 23:13:23 +00:00
Roman Divacky
738a00eb86 Add support for parsing [expr]. 
This is submitted by Joerg Sonnenberger and fixes his PR8685.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125595 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-15 20:43:39 +00:00
Jakob Stoklund Olesen
79bb6dd363 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125591 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-15 19:51:58 +00:00
Devang Patel
d3526eab46 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125577 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-15 17:56:09 +00:00
Argyrios Kyrtzidis
6e31b9b8c3 Implement a function from PathV2 whose definition is missing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125574 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-15 17:51:19 +00:00
Devang Patel
fc0569e55a Move DbgInfoPrinter specific utlities inside DbgInfoPrinter.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125571 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-15 17:36:11 +00:00
Devang Patel
497acb91dc Print function info. Patch by Minjang Kim. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125567 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-15 17:24:56 +00:00
Duncan Sands
ab4c366274 Spelling fix: consequtive -> consecutive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125563 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-15 09:23:02 +00:00
Argyrios Kyrtzidis
ab8f3fd2e1 When tablegen'ing the clang analyzer checkers: 
-Use the tablegen class name for the checker class name.
-Mark checker packages as hidden/not hidden.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125558 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-15 07:42:16 +00:00
Nadav Rotem
d9e087bbc3 Fix 9216 - Endless loop in InstCombine pass. 
The pattern "A&(A^B) -> A & ~B" recreated itself because ~B is
actually a xor -1.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125557 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-15 07:13:48 +00:00
Evan Cheng
326d976eb2 Fix thinko. Cmp can be the first instruction in a MBB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125552 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-15 05:00:24 +00:00
Devang Patel
e7394ea9c6 Do not forget DebugLoc! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125547 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-15 02:02:30 +00:00