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6633 Commits

Author SHA1 Message Date
Anton Korobeynikov
7e859dd7f0 Add facility for pre-RA passes 
llvm-svn: 50165
 2008-04-23 18:22:28 +00:00
Anton Korobeynikov
cb195f511d Make stack alignment options global for all targets 
llvm-svn: 50157
 2008-04-23 18:18:10 +00:00
Dan Gohman
3c43d2e18a Fix some whitespace. 
llvm-svn: 50151
 2008-04-23 17:50:15 +00:00
Chris Lattner
b6917d2acc Enforce that multiple return values have to have at least one result. 
llvm-svn: 50137
 2008-04-23 05:36:34 +00:00
Nick Lewycky
0a7b12bb2e Whoops! Undo r50087, unbreak the build. 
llvm-svn: 50088
 2008-04-22 05:20:06 +00:00
Nick Lewycky
fb6c349977 Reverse r47989. Part of removing 'unwinds to' support. 
llvm-svn: 50087
 2008-04-22 05:16:51 +00:00
Chris Lattner
a5b11705b6 Move SplitBlockPredecessors out of loopsimplify into BasicBlockUtils.h 
as a global helper function.  At the same type, switch it from taking
a vector of predecessors to an arbitrary sequential input.  This allows
us to switch LoopSimplify to use a SmallVector for various temporary
vectors that it passed into SplitBlockPredecessors.

llvm-svn: 50020
 2008-04-21 01:28:02 +00:00
Chris Lattner
8ec6e8af60 add a handy helper method to instruction, useful for determining 
whether it is used outside of some block.  This can be used to see
if there are any non-local references, for example.

llvm-svn: 50004
 2008-04-20 22:11:30 +00:00
Chris Lattner
b3b6007c8b Add a new Jump Threading pass, which will handle cases 
such as those in PR2235.  Right now the pass is not very
effective. :)

llvm-svn: 50000
 2008-04-20 20:35:01 +00:00
Dale Johannesen
aac27592f0 Check we aren't trying to convert PPC long double. 
This fixes the testsuite failure on ppcf128-4.ll.

llvm-svn: 49994
 2008-04-20 18:23:46 +00:00
Nicolas Geoffray
f77618e6e8 Cosmetic changes, as suggested by Evan. No functionality changes. 
llvm-svn: 49993
 2008-04-20 17:44:19 +00:00
Chris Lattner
eb6bb803a7 Allow argpromote to promote struct arguments with a specified number 
of elements.  Patch by Matthijs Kooijman!

llvm-svn: 49962
 2008-04-19 19:50:01 +00:00
Nicolas Geoffray
85a9f1911e Enable jitting with a known memory size. 
llvm-svn: 49924
 2008-04-18 20:59:31 +00:00
Dan Gohman
75c895dbc4 Remove the implicit conversion from SDOperandPtr to SDOperand*; this 
may fix a build error on Visual Studio.

llvm-svn: 49876
 2008-04-17 23:02:12 +00:00
Argyrios Kyrtzidis
3da1d68662 Bring in uint32_t, uint64_t, and int64_t types for MSVC. 
llvm-svn: 49854
 2008-04-17 13:56:31 +00:00
Roman Levenstein
a01df2d087 Minor clean-up based on Dan's comments. 
llvm-svn: 49844
 2008-04-17 09:29:48 +00:00
Scott Michel
f66cb3696a Workaround for PR2207, in which pred_iterator assert gets triggered due to a 
wee problem in Xcode 2.[45]/gcc 4.0.1.

llvm-svn: 49831
 2008-04-16 23:46:39 +00:00
Dan Gohman
5afb42a41d Fix a copy+paste error in a comment. 
llvm-svn: 49820
 2008-04-16 21:57:29 +00:00
Nicolas Geoffray
a7557dfe71 Correlate stubs with functions in JIT: when emitting a stub, the JIT tells the memory manager which function 
the stub will resolve.

llvm-svn: 49814
 2008-04-16 20:46:05 +00:00
Eric Christopher
b7066c7539 Fix comment. 
llvm-svn: 49813
 2008-04-16 20:45:31 +00:00
Nicolas Geoffray
ae84bbdbed Infrastructure for getting the machine code size of a function and an instruction. X86, PowerPC and ARM are implemented 
llvm-svn: 49809
 2008-04-16 20:10:13 +00:00
Bill Wendling
ac375522e4 Add "empty()" method to sys::Path and remove unnecessary whitespace. 
Patch by Mikhail Glushenkov!

llvm-svn: 49803
 2008-04-16 18:27:02 +00:00
Roman Levenstein
a3ee1a38a3 Ongoing work on improving the instruction selection infrastructure: 
Rename SDOperandImpl back to SDOperand.
Introduce the SDUse class that represents a use of the SDNode referred by
an SDOperand. Now it is more similar to Use/Value classes.

Patch is approved by Dan Gohman.

llvm-svn: 49795
 2008-04-16 16:15:27 +00:00
Gabor Greif
522dc99164 merge of r49785 (from branches/ggreif/use-diet): pass V to dyn_cast by const reference, this avoids copy-constructing and destructing all the time. especially important if these constructors are not accessible 
llvm-svn: 49787
 2008-04-16 11:43:47 +00:00
Evan Cheng
e45b8f89c5 Rewrite LiveVariable liveness computation. The new implementation is much simplified. It eliminated the nasty recursive routines and removed the partial def / use bookkeeping. There is also potential for performance improvement by replacing the conservative handling of partial physical register definitions. The code is currently disabled until live interval analysis is taught of the name scheme. 
This patch also fixed a couple of nasty corner cases.

llvm-svn: 49784
 2008-04-16 09:46:40 +00:00
Owen Anderson
57236b58f7 Major repairs to the post-dominators implementation. Patch from Florian Brandner! 
llvm-svn: 49768
 2008-04-16 04:21:16 +00:00
Chris Lattner
08623f21ae fix off by one error. 
llvm-svn: 49766
 2008-04-16 04:10:37 +00:00
Chris Lattner
ee61054d00 give smallstring some methods to do 'itoa'. 
llvm-svn: 49765
 2008-04-16 04:05:02 +00:00
Dale Johannesen
7b96b2e7da Make 64-to-32 bit truncations explicit (prevent warnings). 
All values here fit in 32 bits.

llvm-svn: 49736
 2008-04-15 18:44:59 +00:00
Nicolas Geoffray
7000c8f1aa Change Divided flag to Split, as suggested by Evan 
llvm-svn: 49715
 2008-04-15 08:08:50 +00:00
Evan Cheng
ba7126064a Sort sub-registers and super-registers lists according to super-sub register relations. e.g. X86::RAX sub-register list is EAX, AX, AL, AH (order of last two are not guaranteed). 
llvm-svn: 49714
 2008-04-15 07:56:03 +00:00
Dan Gohman
4370f26750 Treat EntryToken nodes as "passive" so that they aren't added to the 
ScheduleDAG; they don't correspond to any actual instructions so they
don't need to be scheduled.

This fixes a bug where the EntryToken was being scheduled multiple
times in some cases, though it ended up not causing any trouble because 
EntryToken doesn't expand into anything. With this fixed the schedulers
reliably schedule the expected number of units, so we can check this
with an assertion.

This requires a tweak to test/CodeGen/X86/loop-hoist.ll because it
ends up getting scheduled differently in a trivial way, though it was
enough to fool the prcontext+grep that the test does.

llvm-svn: 49701
 2008-04-15 01:22:18 +00:00
Dan Gohman
e5f21cea3e In -view-sunit-dags, display "special" chain dependencies as cyan 
instead of blue to distinguish them from regular dependencies.

llvm-svn: 49696
 2008-04-14 23:15:07 +00:00
Dan Gohman
2cd8e38ab9 Teach AliasSetTracker about VAArgInst. 
llvm-svn: 49674
 2008-04-14 18:34:50 +00:00
Dan Gohman
2505d86783 Fix const-correctness issues with the SrcValue handling in the 
memory intrinsic expansion code.

llvm-svn: 49666
 2008-04-14 17:55:48 +00:00
Dale Johannesen
876224b1e8 Reverse sense of unwind-tables option. This means 
stack tracebacks on Darwin x86-64 won't work by default;
nevertheless, everybody but me thinks this is a good idea.

llvm-svn: 49663
 2008-04-14 17:54:17 +00:00
Dan Gohman
c22ede25c4 Clean up some comments. 
llvm-svn: 49661
 2008-04-14 17:45:20 +00:00
Chris Lattner
cc9709cff4 add a new CallGraphNode::removeCallEdgeFor method, tidy some comments. 
llvm-svn: 49617
 2008-04-13 19:41:25 +00:00
Chris Lattner
0e0bbb626d Add support for equality comparison of CallSite's. 
llvm-svn: 49616
 2008-04-13 19:40:26 +00:00
Nicolas Geoffray
dcc2eda5fc Add a divided flag for the first piece of an argument divided into mulitple parts. Fixes PR1643 
llvm-svn: 49611
 2008-04-13 13:40:22 +00:00
Duncan Sands
a07136ee2d Merge LLVMBuilder and FoldingBuilder, calling 
the result IRBuilder.  Patch by Dominic Hamon.

llvm-svn: 49604
 2008-04-13 06:22:09 +00:00
Dan Gohman
544ab2c50b Drop ISD::MEMSET, ISD::MEMMOVE, and ISD::MEMCPY, which are not Legal 
on any current target and aren't optimized in DAGCombiner. Instead
of using intermediate nodes, expand the operations, choosing between
simple loads/stores, target-specific code, and library calls,
immediately.

Previously, the code to emit optimized code for these operations
was only used at initial SelectionDAG construction time; now it is
used at all times. This fixes some cases where rep;movs was being
used for small copies where simple loads/stores would be better.

This also cleans up code that checks for alignments less than 4;
let the targets make that decision instead of doing it in
target-independent code. This allows x86 to use rep;movs in
low-alignment cases.

Also, this fixes a bug that resulted in the use of rep;stos for
memsets of 0 with non-constant memory size when the alignment was
at least 4. It's better to use the library in this case, which
can be significantly faster when the size is large.

This also preserves more SourceValue information when memory
intrinsics are lowered into simple loads/stores.

llvm-svn: 49572
 2008-04-12 04:36:06 +00:00
Evan Cheng
499ffa9055 Use of implicit_def is not part of live interval. Create empty intervals for the uses when the live interval is being spilled. 
llvm-svn: 49542
 2008-04-11 17:53:36 +00:00
Chris Lattner
0b596c3f5a improvements for IntrusiveRefCntPtr, patch by Mikhail Glushenkov 
llvm-svn: 49538
 2008-04-11 16:42:06 +00:00
Evan Cheng
2cb98eb4bb Allow registers defined by implicit_def to be clobbered. 
llvm-svn: 49512
 2008-04-10 23:47:53 +00:00
Dan Gohman
7603a182cc Fix a typo in a comment. 
llvm-svn: 49502
 2008-04-10 22:27:06 +00:00
Dan Gohman
33b3300178 Make isVectorClearMaskLegal's operand list const. 
llvm-svn: 49446
 2008-04-09 20:09:42 +00:00
Dan Gohman
44b3005e86 Fix some minor errors in comments. 
llvm-svn: 49445
 2008-04-09 20:08:06 +00:00
Dan Gohman
3049516bd5 Add const qualifiers. 
llvm-svn: 49443
 2008-04-09 18:31:41 +00:00
Dan Gohman
bb0022b810 Update comments to use 2.0 syntax type names. 
llvm-svn: 49442
 2008-04-09 18:24:25 +00:00