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45513 Commits

Author SHA1 Message Date
Chris Lattner
f5ebfb0d28 Don't unroll loops whose header block's address is taken. 
This is part of a futile attempt to not "break" bizzaro
code like this:

 l1:
  printf("l1: %p\n", &&l1);
  ++x;

  if( x < 3 ) goto l1;


Previously we'd fold &&l1 to 1, which is fine per our semantics
but not helpful to the user.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125827 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-18 04:25:21 +00:00
Joerg Sonnenberger
5ad596f9d2 Recognize monitor/mwait with explicit register arguments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125805 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-18 00:48:11 +00:00
Argyrios Kyrtzidis
c788f44642 Check the errorcode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125804 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-18 00:47:07 +00:00
Jakob Stoklund Olesen
febb0bd0b9 Trim debugging output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125802 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-18 00:32:47 +00:00
Joerg Sonnenberger
97755a063e Recognize leavel and leaveq aliases for leave. 
Validate encoding of leave in 64bit mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125795 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 23:36:39 +00:00
Devang Patel
a4defc00eb Do not lose debug info of an inlined function argument even if the argument is only used through GEPs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125794 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 23:33:27 +00:00
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
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
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
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
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
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
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
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
Chris Lattner
da1d660aa2 tidy up a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125546 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-15 01:56:08 +00:00
Chris Lattner
2ca5c8644e convert ConstantVector::get to use ArrayRef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125537 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-15 00:14:00 +00:00
Bob Wilson
727961a1a3 Remove unused bitvectors that record ARM callee-saved registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125534 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-14 23:40:38 +00:00