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Author SHA1 Message Date
Rafael Espindola
05e2f8b789 Expose getTypeName to the C API. Patch by Patrick Walton. 
llvm-svn: 125845
 2011-02-18 16:35:37 +00:00
Duncan Sands
1ddd628de0 Add some transforms of the kind X-Y>X -> 0>Y which are valid when there is no 
overflow.  These subsume some existing equality transforms, so zap those.

llvm-svn: 125843
 2011-02-18 16:25:37 +00:00
Benjamin Kramer
c52c7162d7 The objectsize intrinsic doesn't access any memory. 
llvm-svn: 125842
 2011-02-18 16:11:40 +00:00
Chris Lattner
2aebf9f4ad add a poor division by constant case. 
llvm-svn: 125832
 2011-02-18 05:35:49 +00:00
Chris Lattner
6bf82a073a add a testcase for r125827 
llvm-svn: 125831
 2011-02-18 05:05:01 +00:00
Cameron Zwarich
f6fa19a03f Roll out r125794 to help diagnose the llvm-gcc-i386-linux-selfhost failure. 
llvm-svn: 125830
 2011-02-18 04:58:10 +00:00
Chris Lattner
eccec47f5c 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.

llvm-svn: 125829
 2011-02-18 04:43:06 +00:00
Chris Lattner
87de1d1bb8 hoist GlobalValue::removeDeadConstantUsers up to being a method on Constant. 
llvm-svn: 125828
 2011-02-18 04:41:42 +00:00
Chris Lattner
cd170f7cf6 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.

llvm-svn: 125827
 2011-02-18 04:25:21 +00:00
Peter Collingbourne
77a70485d9 Make -disable-simplify-libcalls work with -std-compile-opts 
llvm-svn: 125824
 2011-02-18 02:59:21 +00:00
Joerg Sonnenberger
efa8090e2a Recognize monitor/mwait with explicit register arguments 
llvm-svn: 125805
 2011-02-18 00:48:11 +00:00
Argyrios Kyrtzidis
7f4a6afc42 Check the errorcode. 
llvm-svn: 125804
 2011-02-18 00:47:07 +00:00
Jakob Stoklund Olesen
9af1f4da20 Trim debugging output. 
llvm-svn: 125802
 2011-02-18 00:32:47 +00:00
Joerg Sonnenberger
9f8f3a2c59 Recognize leavel and leaveq aliases for leave. 
Validate encoding of leave in 64bit mode.

llvm-svn: 125795
 2011-02-17 23:36:39 +00:00
Devang Patel
b6f55191b3 Do not lose debug info of an inlined function argument even if the argument is only used through GEPs. 
llvm-svn: 125794
 2011-02-17 23:33:27 +00:00
Joerg Sonnenberger
adef15e109 Check that MnemonicAlias doesn't map back to the same string. 
llvm-svn: 125792
 2011-02-17 23:22:19 +00:00
Chris Lattner
f9501b79f9 have instcombine preserve nsw/nuw/exact when sinking 
common operations through a phi. 

llvm-svn: 125790
 2011-02-17 23:01:49 +00:00
Jakob Stoklund Olesen
c710f55d9d Add basic register allocator statistics. 
llvm-svn: 125789
 2011-02-17 22:53:48 +00:00
Chris Lattner
fd397180f3 fix typo 
llvm-svn: 125787
 2011-02-17 22:32:54 +00:00
Oscar Fuentes
5b5316fae9 New library: LLVMX86Utils. 
llvm-svn: 125786
 2011-02-17 22:26:11 +00:00
Chris Lattner
fc8ee641a2 fix instcombine merging GEPs through a PHI to only make the 
result inbounds if all of the inputs are inbounds.

llvm-svn: 125785
 2011-02-17 22:21:26 +00:00
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