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Author SHA1 Message Date
Chris Lattner
c1e4ce6044 add a poor division by constant case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125832 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-18 05:35:49 +00:00
Chris Lattner
67982da351 add a testcase for r125827 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125831 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-18 05:05:01 +00:00
Cameron Zwarich
1646953538 Roll out r125794 to help diagnose the llvm-gcc-i386-linux-selfhost failure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125830 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-18 04:58:10 +00:00
Chris Lattner
78f7a25f98 prevent jump threading from merging blocks when their address is 
taken (and used!).  This prevents merging the blocks (invalidating
the block addresses) in a case like this:

#define _THIS_IP_  ({ __label__ __here; __here: (unsigned long)&&__here; })

void foo() {
  printf("%p\n", _THIS_IP_);
  printf("%p\n", _THIS_IP_);
  printf("%p\n", _THIS_IP_);
}

which fixes PR4151.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125829 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-18 04:43:06 +00:00
Chris Lattner
13fb0db0c2 hoist GlobalValue::removeDeadConstantUsers up to being a method on Constant. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125828 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-18 04:41:42 +00:00
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
Peter Collingbourne
90d238ce8a Make -disable-simplify-libcalls work with -std-compile-opts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125824 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-18 02:59:21 +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
Joerg Sonnenberger
6ef6ceda68 Check that MnemonicAlias doesn't map back to the same string. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125792 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 23:22:19 +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
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