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8699 Commits

Author SHA1 Message Date
Dan Gohman
db7860aa40 Teach ScalarEvolution how to analyze loops with multiple exit 
blocks, and also exit blocks with multiple conditions (combined
with (bitwise) ands and ors). It's often infeasible to compute an
exact trip count in such cases, but a useful upper bound can often
be found.

llvm-svn: 73866
 2009-06-22 00:31:57 +00:00
Dan Gohman
eb0a67278b Fix ScalarEvolution's backedge-taken count computations to check for 
overflow when computing a integer division to round up.

Thanks to Nick Lewycky for noticing this!

llvm-svn: 73862
 2009-06-21 23:46:38 +00:00
Chris Lattner
dd95ab3ca9 rename SourceMgr::PrintError to PrintMessage. 
llvm-svn: 73861
 2009-06-21 21:22:11 +00:00
Chris Lattner
c865ea76a6 move include searching logic from TGLexer to SourceMgr. 
llvm-svn: 73845
 2009-06-21 05:06:04 +00:00
Chris Lattner
5b9a2d79c0 Rename TGSourceMgr -> SourceMgr. 
llvm-svn: 73844
 2009-06-21 03:41:50 +00:00
Chris Lattner
4ff2620742 rename TGLoc -> SMLoc. 
llvm-svn: 73843
 2009-06-21 03:39:35 +00:00
Chris Lattner
4ed87b8790 move TGSourceMgr class out of TableGen into libsupport. 
llvm-svn: 73842
 2009-06-21 03:36:54 +00:00
Chris Lattner
a01650186d fit in 80 cols 
llvm-svn: 73838
 2009-06-21 01:52:00 +00:00
Chris Lattner
7b43ca847d implement support for lowering subregs when preparing to print 
LEA64_32r, eliminating a bunch of modifier logic stuff on addr modes.

Implement support for printing mbb labels as operands.

llvm-svn: 73817
 2009-06-20 07:03:18 +00:00
Chris Lattner
fba2cdee3d make immediates be int64_t like machineoperand. Add some apis 
llvm-svn: 73809
 2009-06-20 00:47:37 +00:00
Owen Anderson
b66d0add26 Add debugging code to test for various locking faux-pas's, when running in single threaded mode. This should help improve testing coverage for 
threading support, without having extensive actually concurrent clients yet.

llvm-svn: 73803
 2009-06-20 00:27:21 +00:00
Owen Anderson
733fa621f6 Revert r73790, and replace it with a significantly less ugly solution. Rather than trying to make the global reader-writer lock work, 
create separate recursive mutexes for each value map.  The recursive-ness fixes the double-acquiring issue, which having one per ValueMap
lets us continue to maintain some concurrency.

llvm-svn: 73801
 2009-06-20 00:24:58 +00:00
Chris Lattner
2e95d43f24 stub out some hacky code for wiring up the new asmprinter interfaces 
on X86.  Not useful yet.

llvm-svn: 73799
 2009-06-19 23:59:57 +00:00
Dan Gohman
d3c3963eea Make GetMinTrailingZeros a member function of ScalarEvolution, 
so that it can access the TargetData member (when available) and
use ValueTracking.h information to compute information for
SCEVUnknown Values.

Also add GetMinLeadingZeros and GetMinSignBits functions,
with minimal implementations.

llvm-svn: 73794
 2009-06-19 23:29:04 +00:00
Owen Anderson
295610c408 Fix a serious bug that would cause deadlock during abstract type refinement. The constant creation 
gets involved, and we end up trying to recursively acquire a writer lock.  The fix for this is slightly horrible,
and involves passing a boolean "locked" parameter around in Constants.cpp, but it's better than having locked and
unlocked versions of most of the code.

llvm-svn: 73790
 2009-06-19 23:16:19 +00:00
Devang Patel
e2b1c9a530 mv CodeGen/DebugLoc.h Support/DebugLoc.h 
llvm-svn: 73786
 2009-06-19 22:08:58 +00:00
Owen Anderson
64a3af667e Fences are expensive. Avoid doing them when we're not in multithreaded mode. 
llvm-svn: 73777
 2009-06-19 17:50:11 +00:00
Owen Anderson
c0ba371831 Fix a major typo. 
Nicolas, this is probably the cause of the failures you were seeing.

llvm-svn: 73770
 2009-06-19 17:08:20 +00:00
Duncan Sands
30dcb8401d Add support for AuroraUX. Patch by evocallaghan. 
llvm-svn: 73766
 2009-06-19 14:40:01 +00:00
Lang Hames
1bade5ff09 More VNInfo tweaking, plus a little progress on intra-block splitting. 
llvm-svn: 73750
 2009-06-19 02:17:53 +00:00
Zhongxing Xu
d290ff9411 Include DataTypes.h for 'uint64_t'. 
llvm-svn: 73748
 2009-06-19 01:56:53 +00:00
Owen Anderson
5fa89d2f8d Fix weird class-size-being-different problems. At some level this is being caused by config.h not being 
included everywhere.

llvm-svn: 73745
 2009-06-19 00:48:22 +00:00
Chris Lattner
3624754e23 Add some scaffolding for a new experimental asmprinter 
implementation.  The idea is that we want asmprinting to
work by converting MachineInstrs into a new MCInst class,
then the per-instruction asmprinter works on MCInst.  MCInst
and the new asmprinters will not depend on most of the 
llvm code generators.  This allows building diassemblers
that don't link in the whole llvm code generator.  This is
step #1 of many.

llvm-svn: 73743
 2009-06-19 00:47:33 +00:00
Chris Lattner
c2b0fd0304 merge the common darwin settings from the X86/PPC/ARM targets 
into DarwinTargetAsmInfo.cpp.  The remaining differences should
be evaluated.  It seems strange that x86/arm has .zerofill but ppc
doesn't, etc.

llvm-svn: 73742
 2009-06-19 00:08:39 +00:00
Chris Lattner
6cd267dcc5 move mangler quote handling from asm printers to TargetAsmInfo. 
llvm-svn: 73738
 2009-06-18 23:41:35 +00:00
Chris Lattner
ea0ea2f4bc simplify macro debug info directive handling. 
llvm-svn: 73736
 2009-06-18 23:31:37 +00:00
Owen Anderson
99dc404fc5 Add a parent pointer to SCEV, in preparation for getting rid of the global uniquing tables. No functionality change. 
llvm-svn: 73728
 2009-06-18 22:25:12 +00:00
Owen Anderson
b7742c5035 Add a SmartScopedLock, and use it to simplify code. 
llvm-svn: 73722
 2009-06-18 20:51:00 +00:00
Anton Korobeynikov
fed9dcc88c Revert IRBuilder CC propagation. Fix SimplifyLibCalls instead. 
llvm-svn: 73715
 2009-06-18 20:05:31 +00:00
Owen Anderson
a1d2310ac7 Simplify the SmartMutex implementation a bit. 
llvm-svn: 73711
 2009-06-18 18:29:03 +00:00
Owen Anderson
4760da0a7a Give RWMutex the SmartRWMutex treatment too. 
llvm-svn: 73710
 2009-06-18 18:26:15 +00:00
Owen Anderson
9aaa6b8958 Insert a SmartMutex templated class into the class hierarchy, which takes a template parameter specifying whether this mutex 
should become a no-op when not running in multithreaded mode.  Make sys::Mutex a typedef of SmartMutex<false>, to preserve source compatibility.

llvm-svn: 73709
 2009-06-18 17:53:17 +00:00
Owen Anderson
a59f91c08d Move Threading.[h|cpp] from Support to System. 
llvm-svn: 73707
 2009-06-18 16:54:52 +00:00
Dan Gohman
fd857b0406 Remove the code from IVUsers that attempted to handle 
casted induction variables in cases where the cast
isn't foldable. It ended up being a pessimization in
many cases. This could be fixed, but it would require
a bunch of complicated code in IVUsers' clients. The
advantages of this approach aren't visible enough to
justify it at this time.

llvm-svn: 73706
 2009-06-18 16:54:06 +00:00
Anton Korobeynikov
82ab724191 Forgot to commit this hunk 
llvm-svn: 73693
 2009-06-18 08:30:57 +00:00
Anton Korobeynikov
e492bc7546 Propagate calling conv for invokes too 
llvm-svn: 73692
 2009-06-18 08:13:56 +00:00
Chris Lattner
47e29d1422 Don't use int8_t, that requires DataTypes.h 
llvm-svn: 73682
 2009-06-18 04:56:53 +00:00
Zhongxing Xu
8b992b2a97 include header for uint8_t. 
llvm-svn: 73675
 2009-06-18 04:11:43 +00:00
Evan Cheng
82a8ab8a8e - Update register allocation hint after coalescing. This is done by the target since the hint is target dependent. This is important for ARM register pair hints. 
- Register allocator should resolve the second part of the hint (register number) before passing it to the target since it knows virtual register to physical register mapping.
- More fixes to get ARM load / store double word working.

llvm-svn: 73671
 2009-06-18 02:04:01 +00:00
Owen Anderson
00e7ebbc38 Reapply r73647 in a non-broken form. 
llvm-svn: 73662
 2009-06-17 23:49:06 +00:00
Owen Anderson
0e2a78e820 Protect the GC table in Function.cpp 
llvm-svn: 73647
 2009-06-17 22:23:31 +00:00
Anton Korobeynikov
77a0bd41fc Honour calling convention and attributes of Callee by default. 
llvm-svn: 73646
 2009-06-17 22:20:46 +00:00
Lang Hames
5c64015a56 VNInfo cleanup. 
llvm-svn: 73634
 2009-06-17 21:01:20 +00:00
Owen Anderson
f8776799ec Add an RAII ScopedWriter, which allows one to acquire a writer lock for the duration of a scope. Simplify a lot of uses of 
writer locks in Constants.cpp by using it.

llvm-svn: 73630
 2009-06-17 20:34:43 +00:00
Douglas Gregor
f3f924bfb6 Define LLVM_NATIVE_ARCH in CMake, so that lli can actually JIT 
llvm-svn: 73616
 2009-06-17 17:01:56 +00:00
Chris Lattner
213e8cbce7 remove two headers subsumed by TargetSelect.h 
llvm-svn: 73612
 2009-06-17 16:45:02 +00:00
Chris Lattner
21f6855b00 Add a utility header that makes it easy to link in the right set 
of targets for various purposes.

llvm-svn: 73610
 2009-06-17 16:42:01 +00:00
Chris Lattner
ee538a1431 make CreateFMul forward to CreateFMul, not CreateMul. 
llvm-svn: 73603
 2009-06-17 06:31:02 +00:00
Mikhail Glushenkov
dd69113516 Fix comment. 
llvm-svn: 73601
 2009-06-17 03:10:10 +00:00
Douglas Gregor
3e9d15410b Update auto-generated configuration files 
llvm-svn: 73591
 2009-06-17 00:43:20 +00:00