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Author SHA1 Message Date
Anton Korobeynikov
e0e616a74d Initial bits of ARMv4-only support. 
Patch by John Tytgat!

llvm-svn: 97886
 2010-03-06 19:39:36 +00:00
Anton Korobeynikov
74dea2d5cb Lower dynamic stack allocation on mingw32 to separate instruction. 
We cannot use a normal call here since it has extra unmodelled side
effects (it changes stack pointer). This should fix PR5292.

llvm-svn: 97884
 2010-03-06 19:32:29 +00:00
Chris Lattner
a446775fd5 make APFloat::toString be const. 
llvm-svn: 97883
 2010-03-06 19:20:13 +00:00
Chris Lattner
eb142908d7 disable this for mingw as well, we really need a 'has no dynamic linking' predicate. 
llvm-svn: 97882
 2010-03-06 18:54:37 +00:00
Anton Korobeynikov
6c841e6a44 Do not use '&' prefix for globals when register base field is non-zero, otherwise msp430-as will silently miscompile the code (TI's assembler report an error though). 
This fixes PR6349

llvm-svn: 97877
 2010-03-06 11:41:12 +00:00
Eric Christopher
b7e9bf6e57 Let the fallthrough handle whether or not we've changed anything 
before we try to optimize.

llvm-svn: 97876
 2010-03-06 10:59:25 +00:00
Eric Christopher
a671e4f7aa Migrate _chk call lowering from SimplifyLibCalls to InstCombine. Stub 
out the remainder of the calls that we should lower in some way and
move the tests to the new correct directory. Fix up tests that are now
optimized more than they were before by -instcombine.

llvm-svn: 97875
 2010-03-06 10:50:38 +00:00
Rafael Espindola
59d5d39e8d Add static methods to handle Linkage Types. 
llvm-svn: 97871
 2010-03-06 07:22:39 +00:00
Chris Lattner
8e294fcf0a clean this up. 
llvm-svn: 97870
 2010-03-06 07:02:28 +00:00
Chris Lattner
b2ed5cb501 revert r97807, it introduced build warnings. 
llvm-svn: 97869
 2010-03-06 04:32:46 +00:00
Jim Grosbach
7d1602fb3b Thumb1 epilogue code generation needs to take into account that callee-saved 
registers may be restored via a pop instruction, not just a tRestore.
This fixes nightly test 471.omnetep for Thumb1.

llvm-svn: 97867
 2010-03-06 03:28:39 +00:00
Eric Christopher
b3f0926f84 Temporarily revert: 
Log:
Transform @llvm.objectsize to integer if the argument is a result of malloc of known size.

Modified:
   llvm/trunk/lib/Transforms/InstCombine/InstCombineCalls.cpp
   llvm/trunk/test/Transforms/InstCombine/objsize.ll

It appears to be causing swb and nightly test failures.

llvm-svn: 97866
 2010-03-06 03:11:35 +00:00
Dale Johannesen
6489147b8e Fix another case where LSR was affected by debug info. 
llvm-svn: 97865
 2010-03-06 02:45:26 +00:00
Evan Cheng
d8e0138666 Don't update physical register def. 
llvm-svn: 97861
 2010-03-06 01:14:19 +00:00
Evan Cheng
071e007ce6 Transform @llvm.objectsize to integer if the argument is a result of malloc of known size. 
llvm-svn: 97860
 2010-03-06 01:01:42 +00:00
Erick Tryzelaar
a71d3b252d Add a LLVMWriteBitcodeToFD that exposes the raw_fd_ostream options. 
llvm-svn: 97858
 2010-03-06 00:30:06 +00:00
Erick Tryzelaar
6e35683720 Whoops, the old LLVMWriteBitcodeToFileHandle closed the stream. 
Luckily this never was released.

llvm-svn: 97857
 2010-03-06 00:30:01 +00:00
Erick Tryzelaar
7c33f3d1f3 LLVMWriteBitcodeToFileHandle should work on all architectures now. 
llvm-svn: 97856
 2010-03-06 00:29:58 +00:00
Dale Johannesen
f0c8e76a85 Add some new bits of debug info handling. No 
functional change yet.

llvm-svn: 97855
 2010-03-06 00:03:23 +00:00
Dan Gohman
00a652eea0 Reapply r97778 and r97779, enabled only for unsigned i64 to f64 
conversions.

llvm-svn: 97854
 2010-03-06 00:00:55 +00:00
Devang Patel
b241f6796a Test case for r97851. 
llvm-svn: 97852
 2010-03-05 23:35:04 +00:00
Ted Kremenek
24e16cd322 Update CMake build. 
llvm-svn: 97846
 2010-03-05 22:34:16 +00:00
Charles Davis
faa2f44081 Don't emit global symbols into the (__TEXT,__ustring) section on Darwin. This 
is a workaround for <rdar://problem/7672401/> (which I filed).

This let's us build Wine on Darwin, and it gets the Qt build there a little bit
further (so Doug says).

llvm-svn: 97845
 2010-03-05 22:28:45 +00:00
Eric Christopher
dfb465a816 Move SimplifyLibCalls's LibCall builders to a separate file so they 
can be used in more places.  Add an argument for the TargetData that
most of them need. Update for the getInt8PtrTy() change.  Should be
no functionality change.

llvm-svn: 97844
 2010-03-05 22:25:30 +00:00
Eric Christopher
1e4aafa273 Add support for an i8* type accessor. 
llvm-svn: 97841
 2010-03-05 22:21:58 +00:00
Jakob Stoklund Olesen
4e033d2070 Better handling of dead super registers in LiveVariables. We used to do this: 
CALL ... %RAX<imp-def>
   ... [not using %RAX]
   %EAX = ..., %RAX<imp-use, kill>
   RET %EAX<imp-use,kill>

Now we do this:

   CALL ... %RAX<imp-def, dead>
   ... [not using %RAX]
   %EAX = ...
   RET %EAX<imp-use,kill>

By not artificially keeping %RAX alive, we lower register pressure a bit.

The correct number of instructions for 2008-08-05-SpillerBug.ll is obviously
55, anybody can see that. Sheesh.

llvm-svn: 97838
 2010-03-05 21:49:17 +00:00
Jakob Stoklund Olesen
1fce28720a We don't really care about correct register liveness information after the 
post-ra scheduler has run. Disable the verifier checks that late in the game.

llvm-svn: 97837
 2010-03-05 21:49:13 +00:00
Jakob Stoklund Olesen
67476519d7 Avoid creating bad PHI instructions when BR is being const-folded. 
llvm-svn: 97836
 2010-03-05 21:49:10 +00:00
Dale Johannesen
5c83d9b9b8 Fix a case where LSR is sensitive to debug info. 
llvm-svn: 97830
 2010-03-05 21:12:40 +00:00
Evan Cheng
3346ea1d4e Safely turn memset_chk etc. to non-chk variant if the known object size is >= memset / memcpy / memmove size. 
llvm-svn: 97828
 2010-03-05 20:59:47 +00:00
Evan Cheng
782183fe4a Instcombine should turn llvm.objectsize of a alloca with static size to an integer. 
llvm-svn: 97827
 2010-03-05 20:47:23 +00:00
Evan Cheng
ee117a9429 Fix typo. 
llvm-svn: 97818
 2010-03-05 19:55:55 +00:00
Chris Lattner
e1452aba94 fix bss section printing for cell, patch by Kalle Raiskila! 
llvm-svn: 97814
 2010-03-05 18:55:36 +00:00
Chris Lattner
789121d6e2 fix PR6512, a case where instcombine would incorrectly merge loads 
from different addr spaces.

llvm-svn: 97813
 2010-03-05 18:53:28 +00:00
Wesley Peck
79c2f7afcc Reworking the stack layout that the MicroBlaze backend generates. 
The MicroBlaze backend was generating stack layouts that did not
conform correctly to the ABI. This update generates stack layouts
which are closer to what GCC does.

Variable arguments support was added as well but the stack layout
for varargs has not been finalized.

llvm-svn: 97807
 2010-03-05 15:26:02 +00:00
Wesley Peck
299e815510 Adding MBlaze to cmake target list. 
llvm-svn: 97806
 2010-03-05 15:15:55 +00:00
Chris Lattner
617f774b4e Fix PR6503. This turned into a much more interesting and nasty bug. Various 
parts of the cmp|cmp and cmp&cmp folding logic wasn't prepared for vectors
(unrelated to the bug but noticed while in the code) and the code was 
*definitely* not safe to use by the (cast icmp)|(cast icmp) handling logic
that I added in r95855.  Fix all this up by changing the various routines
to more consistently use IRBuilder and not pass in the I which had the wrong 
type.

llvm-svn: 97801
 2010-03-05 08:46:26 +00:00
Chris Lattner
f44ffcbc2c make these less sensitive to temporary naming. 
llvm-svn: 97799
 2010-03-05 08:43:33 +00:00
Chris Lattner
3d5ab3df06 remove this testcase, it isn't clear what it was testing and it is subsumed by or.ll 
llvm-svn: 97798
 2010-03-05 08:43:06 +00:00
Evan Cheng
eb43cbfc75 Fix an oops in x86 sibcall optimization. If the ByVal callee argument is itself passed as a pointer, then it's obviously not safe to do a tail call. 
llvm-svn: 97797
 2010-03-05 08:38:04 +00:00
Duncan Sands
d18aa07fde If LD_LIBRARY_PATH is set in the system environment, use it. 
llvm-svn: 97796
 2010-03-05 08:21:02 +00:00
Chris Lattner
bb443e70aa simplify some functions and make them work with vector 
compares, noticed by inspection.

llvm-svn: 97795
 2010-03-05 07:47:57 +00:00
Chris Lattner
e457488032 fix a nice subtle reassociate bug which would only occur 
in a very specific use pattern embodied in the carefully
reduced testcase.

llvm-svn: 97794
 2010-03-05 07:18:54 +00:00
Eric Christopher
3e3c445c81 Move GetStringLength and helper from SimplifyLibCalls to ValueTracking. 
No functionality change.

llvm-svn: 97793
 2010-03-05 06:58:57 +00:00
Jeffrey Yasskin
ec7d47ec83 Revert r97788 because it broke test/FrontendC/2010-02-16-DbgVarScope.c. 
llvm-svn: 97792
 2010-03-05 06:43:49 +00:00
Chris Lattner
80aaccb987 Fix PR6497, a bug where we'd fold a load into an addc 
node which has a flag.  That flag in turn was used by an
already-selected adde which turned into an ADC32ri8 which
used a selected load which was chained to the load we
folded.  This flag use caused us to form a cycle.  Fix
this by not ignoring chains in IsLegalToFold even in
cases where the isel thinks it can.

llvm-svn: 97791
 2010-03-05 06:19:13 +00:00
Chris Lattner
5804690a45 cleanup 
llvm-svn: 97790
 2010-03-05 06:17:43 +00:00
Chris Lattner
d7353d219f inline a small function with one call site. 
llvm-svn: 97789
 2010-03-05 05:49:45 +00:00
Jeffrey Yasskin
a526081ebf Free MDNodes when the LLVMContext is destroyed. Leak found by Valgrind. 
llvm-svn: 97788
 2010-03-05 05:47:09 +00:00
Mikhail Glushenkov
67cac93b81 Make it not an error to specify -O* options several times. 
As in 'llvmc -O2 -O2 test.c'.

llvm-svn: 97787
 2010-03-05 04:46:39 +00:00