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Author SHA1 Message Date
Chris Lattner
cba8b4c7e8 Make instcombine's DSE respect loads as well as stores. It is not safe to 
delete the first store in:

store x -> p
load p
store y -> p

This is for PR2297.

llvm-svn: 50859
 2008-05-08 17:20:30 +00:00
Chris Lattner
3c362081d5 add a new Instruction::mayReadFromMemory predicate, make 
Instruction::mayWriteToMemory stronger for invokes.

llvm-svn: 50858
 2008-05-08 17:16:51 +00:00
Devang Patel
3dce0e9d2e Check linkage. 
llvm-svn: 50851
 2008-05-08 15:08:39 +00:00
Duncan Sands
5775b74165 Get exception handling working again on 64 bit 
Darwin.  This is a hack of course, but it does
at least look at the right thing: gotpcrel means
that this is already an offset, so an explicit
offset is not needed (and wrong).  I think this
is good enough for the moment: Anton is working
on something better.

llvm-svn: 50850
 2008-05-08 12:33:11 +00:00
Chris Lattner
9bf499a8b9 new testcase. 
llvm-svn: 50841
 2008-05-08 04:55:51 +00:00
Chris Lattner
9011ceba89 Add support for constant folding the 'offsetof' pattern even if the 
base is not zero.  This fixes test/C++Frontend/2008-05-07-CrazyOffsetOf.cpp

llvm-svn: 50840
 2008-05-08 04:54:43 +00:00
Evan Cheng
f97e716511 Handle vector move / load which zero the destination register top bits (i.e. movd, movq, movss (addr), movsd (addr)) with X86 specific dag combine. 
llvm-svn: 50838
 2008-05-08 00:57:18 +00:00
Evan Cheng
7ff000c175 Add nounwind. 
llvm-svn: 50837
 2008-05-07 22:59:08 +00:00
Anton Korobeynikov
ddb93e7a02 Turn StripPointerCast() into a method 
llvm-svn: 50836
 2008-05-07 22:54:15 +00:00
Mikhail Glushenkov
7e401e5002 Use Doxygen-style comments. 
llvm-svn: 50833
 2008-05-07 21:50:19 +00:00
Ted Kremenek
1534cce257 Make the interface of CStrInCStrNoCase be the same as strcasestr. 
llvm-svn: 50828
 2008-05-07 20:04:18 +00:00
Chris Lattner
3ee18d7c51 Add a new LibCallAliasAnalysis pass, which is parameterized 
by an instance of LibCallInfo to provide mod/ref info of
standard library functions.  This is powerful enough to
say that 'sqrt' is readonly except that it modifies errno,
or that "printf doesn't store to memory unless the %n
constraint is present" etc.

llvm-svn: 50827
 2008-05-07 19:53:05 +00:00
Ted Kremenek
b82fe559d6 Fix some serious logical errors in CStrInCStrNoCase pointed out by Bill. 
llvm-svn: 50826
 2008-05-07 19:22:36 +00:00
Duncan Sands
6f4e916c6a Output correct exception handling and frame info 
on x86-64 linux.  This causes no regressions on
32 bit linux and 32 bit ppc.  More tests pass
on 64 bit ppc with no regressions.  I didn't
turn on eh on 64 bit linux because the intrinsics
needed to compile the eh runtime aren't done
yet.  But if you turn it on and link with the
mainline runtime then eh seems to work fine
on x86-64 linux with this patch.  Thanks to
Dale for testing.  The main point of the patch
is that if you output that some object is
encoded using 4 bytes you had better not output
8 bytes for it: the patch makes everything
consistent.

llvm-svn: 50825
 2008-05-07 19:11:09 +00:00
Ted Kremenek
cbaf12a084 Guard for empty strings in CStrInCStrNoCase. 
llvm-svn: 50823
 2008-05-07 18:49:31 +00:00
Ted Kremenek
535ed35152 Added CStrInCStrNoCase, a portable implementation of strcasestr. 
llvm-svn: 50821
 2008-05-07 18:35:46 +00:00
Chris Lattner
e70ff7b21c Add a new interface for describing the behavior of library calls. This 
Currently is sufficient to describe mod/ref behavior but will hopefully
eventually be extended for other purposes.

This isn't used by anything yet.

llvm-svn: 50820
 2008-05-07 18:21:13 +00:00
Nick Lewycky
adfc627b77 Typo. 
llvm-svn: 50805
 2008-05-07 06:39:04 +00:00
Evan Cheng
c86c035346 Yet another nasty spiller bug. 
%ecx = op
store %cl<kill>, (addr)
(addr) = op %al

It's not safe to unfold the last operand and eliminate store even though %cl is marked kill. It's a sub-register use which means one of its super-register(s) may be used below.

llvm-svn: 50794
 2008-05-07 00:49:28 +00:00
Dan Gohman
6ea87fa437 Fix a bug in the ComputeMaskedBits logic for multiply. 
llvm-svn: 50793
 2008-05-07 00:35:55 +00:00
Bill Wendling
a7619e13ed Make the use of the "noinline" attribute conditional on using GCC. 
llvm-svn: 50789
 2008-05-07 00:00:34 +00:00
Owen Anderson
3743bcf042 Disable loop deletion until the release branch. 
llvm-svn: 50787
 2008-05-06 23:56:34 +00:00
Bill Wendling
3cb8ee3c80 Removing. 
llvm-svn: 50786
 2008-05-06 23:56:22 +00:00
Bill Wendling
9d987912d6 Workaround for a compiler bug (see <rdar://problem/5852746>). Once that bug is 
fixed, revert this patch.

llvm-svn: 50782
 2008-05-06 23:30:02 +00:00
Steve Naroff
30440f5a20 Update a couple VC++ project files. 
llvm-svn: 50780
 2008-05-06 23:14:34 +00:00
Anton Korobeynikov
a9ff11ea5f Use target triple in tests, not 'realign-stack=0' option. Per request. 
llvm-svn: 50778
 2008-05-06 23:09:29 +00:00
Anton Korobeynikov
ef80f5dbca If weak GlobalVariable was bitcast'ed to different type during linking 
we will need to strip all casts for intializer lookup.

llvm-svn: 50776
 2008-05-06 22:52:54 +00:00
Anton Korobeynikov
90ee6d6616 Make StripPointerCast a common function (should we mak it method of Value instead?) 
llvm-svn: 50775
 2008-05-06 22:52:30 +00:00
Owen Anderson
2dccdcf2f2 Testcase for r50770. 
llvm-svn: 50771
 2008-05-06 21:01:34 +00:00
Owen Anderson
d82a778214 We need to update PHIs containing the exiting block, not the exit block. We really should come up with better names for these. 
llvm-svn: 50770
 2008-05-06 20:55:16 +00:00
Gordon Henriksen
464bfd405a Improve documentation. 
llvm-svn: 50768
 2008-05-06 19:17:01 +00:00
Mikhail Glushenkov
b2547a6c28 Change from llvm::SmallSet<std::string> to llvm::StringMap<char>. 
llvm-svn: 50766
 2008-05-06 18:18:58 +00:00
Mikhail Glushenkov
24d085fee4 Add new edge property combinator: weight. 
llvm-svn: 50765
 2008-05-06 18:18:20 +00:00
Mikhail Glushenkov
ca50cc143c Add a help string for the -c option 
llvm-svn: 50764
 2008-05-06 18:17:42 +00:00
Mikhail Glushenkov
7710d5fb19 Update documentation to reflect the current state of affairs. 
llvm-svn: 50763
 2008-05-06 18:17:19 +00:00
Mikhail Glushenkov
7e594e9a00 Some cosmetic changes (change some comments, move code around a bit). 
llvm-svn: 50762
 2008-05-06 18:16:52 +00:00
Mikhail Glushenkov
5a403195b3 Move test files around a bit - fixes the reported number of test cases. 
llvm-svn: 50761
 2008-05-06 18:16:20 +00:00
Mikhail Glushenkov
8eaf175d62 Refactoring: split the function CompilationGraph::Build() into two parts. 
llvm-svn: 50760
 2008-05-06 18:15:35 +00:00
Mikhail Glushenkov
3534026221 Use edge weights to choose the right linker based on input language names. 
llvm-svn: 50759
 2008-05-06 18:15:12 +00:00
Mikhail Glushenkov
7ea1b7e206 Add weights to graph edges. Choose between edges based on their weight. 
llvm-svn: 50757
 2008-05-06 18:14:24 +00:00
Mikhail Glushenkov
e2005cb90d Remove the UnpackValues() function. 
llvm-svn: 50756
 2008-05-06 18:13:45 +00:00
Mikhail Glushenkov
78aa308f84 Add a --linker command-line option, make all tests pass. 
llvm-svn: 50755
 2008-05-06 18:13:00 +00:00
Mikhail Glushenkov
89e32fbe59 Naming fix: LLVMCCConfigurationEmitter -> LLVMCConfigurationEmitter. 
llvm-svn: 50754
 2008-05-06 18:12:03 +00:00
Mikhail Glushenkov
ffc7ee62c0 Add two (currently failing) tests. 
llvm-svn: 50752
 2008-05-06 18:11:21 +00:00
Mikhail Glushenkov
008827951e Add -x option (like in gcc). 
llvm-svn: 50750
 2008-05-06 18:10:53 +00:00
Mikhail Glushenkov
dc50e8c5fa Take object file as input and handle files with the same name correctly. 
llvm-svn: 50749
 2008-05-06 18:10:20 +00:00
Mikhail Glushenkov
c586c41085 Rename LLVMCCConfigurationEmitter to LLVMCConfigurationEmitter 
llvm-svn: 50748
 2008-05-06 18:09:29 +00:00
Mikhail Glushenkov
b70916c93f Add output redirection, rename namespace llvmcc to namespace llvmc. 
llvm-svn: 50746
 2008-05-06 18:08:59 +00:00
Mikhail Glushenkov
e9c941de05 Make AutoGenerated.inc depend also on Tools.td and Common.td 
llvm-svn: 50745
 2008-05-06 18:08:12 +00:00
Mikhail Glushenkov
c5fb5c9d2a Utilize topological sort in CompilationGraph::Build(). 
This makes more interesting graph topologies possible. Currently all tests pass,
but more testing is needed.

llvm-svn: 50744
 2008-05-06 18:07:48 +00:00