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Author SHA1 Message Date
Chris Lattner
d506ae2617 a bunch of cleanups and tweaks, no functionality changes. 
llvm-svn: 101657
 2010-04-17 17:55:00 +00:00
Dan Gohman
b66acedc8a Fix more -Wcast-qual warnings. 
llvm-svn: 101656
 2010-04-17 17:44:03 +00:00
Dan Gohman
fba34ef042 Fix -Wcast-qual warnings. 
llvm-svn: 101655
 2010-04-17 17:42:52 +00:00
Chris Lattner
99878c7ca4 remove a dead variable, PR6856 
llvm-svn: 101648
 2010-04-17 17:28:00 +00:00
Chris Lattner
80a22bfcdb testcase for r101538, patch by Nico Schmidt! 
llvm-svn: 101642
 2010-04-17 17:22:06 +00:00
Dan Gohman
3dde4fe35f Add const qualifiers to TargetLoweringObjectFile usage. 
llvm-svn: 101640
 2010-04-17 16:44:48 +00:00
Dan Gohman
b5109cda0e Use const_cast instead of a C-style cast to cast away const. 
llvm-svn: 101639
 2010-04-17 16:43:55 +00:00
Dan Gohman
5736cd1e47 Start function numbering at 0. 
llvm-svn: 101638
 2010-04-17 16:29:15 +00:00
Dan Gohman
6065ff317b Delete now-unnecessary const_casts. 
llvm-svn: 101637
 2010-04-17 15:32:28 +00:00
Dan Gohman
87af9f6bf4 Use cast instead of dyn_cast when assuming success. 
llvm-svn: 101636
 2010-04-17 15:31:16 +00:00
Dan Gohman
a0f855157e Use const qualifiers with TargetLowering. This eliminates several 
const_casts, and it reinforces the design of the Target classes being
immutable.

SelectionDAGISel::IsLegalToFold is now a static member function, because
PIC16 uses it in an unconventional way. There is more room for API
cleanup here.

And PIC16's AsmPrinter no longer uses TargetLowering.

llvm-svn: 101635
 2010-04-17 15:26:15 +00:00
Dan Gohman
5c8db5ab3f Move per-function state out of TargetLowering subclasses and into 
MachineFunctionInfo subclasses.

llvm-svn: 101634
 2010-04-17 14:41:14 +00:00
Chandler Carruth
c03e85229d Name these stub files consistently with the SPU and PPC targets' conventions. 
Also rename the classes appropriately. The CMake build already used these
names.

llvm-svn: 101631
 2010-04-17 08:50:29 +00:00
Chris Lattner
42337931b2 a bunch of ssse3 instructions are misencoded to think they have an 
i8 field when they really do not.  This fixes rdar://7840289

llvm-svn: 101629
 2010-04-17 07:38:24 +00:00
Chris Lattner
bef627e798 reenable r101565, removing a problematic assertion. 
CGSCC can delete nodes in regions of the callgraph that
have already been visited.  If new CG nodes are allocated
to the same pointer, we shouldn't abort, just handle it
correctly by assigning a new number.  This should restore
stability by removing invalidated pointers that *will* be
reused from the densemap in the iterator.

llvm-svn: 101628
 2010-04-17 07:17:19 +00:00
Evan Cheng
0004496a98 Postra machine licm must add registers defined by loop invariants to *all* of 
the live-in sets of BBs in the loop. Otherwise later pass may end up using the
registers and override the invariant. rdar://7852937
No reasonablly sized test case possible.

llvm-svn: 101626
 2010-04-17 07:07:11 +00:00
Nick Lewycky
35e42e1c73 Refresh this documentation. Things have changed a bit in the mean time: 
- LLVMgold.so --> libLLVMgold.so
 - the GCC LTO project is no longer 'upcoming'
 - document the plugin support for 'ar' and 'nm'

llvm-svn: 101624
 2010-04-17 07:00:24 +00:00
Evan Cheng
81f543c005 Fix codegen passes. -disable-ssc shouldn't disable postra machine licm. 
llvm-svn: 101622
 2010-04-17 06:47:47 +00:00
Evan Cheng
6442d111dd More work to allow dag combiner to promote 16-bit ops to 32-bit. 
llvm-svn: 101621
 2010-04-17 06:13:15 +00:00
Evan Cheng
aa2f3449c4 Another 80 col violation. 
llvm-svn: 101620
 2010-04-17 06:12:32 +00:00
Bob Wilson
7e53f886d2 Revise my previous change to ExpandBIT_CONVERT. I hadn't realized that this 
may be called when either the source or destination type is i64, and my
change also hadn't fixed the most obvious problem -- assuming that i64 will
only be bitconverted to f64, ignoring the various vector types.
Radar 7873160.

llvm-svn: 101615
 2010-04-17 05:30:19 +00:00
Evan Cheng
d3d5e6793a Add nounwind. 
llvm-svn: 101613
 2010-04-17 03:43:36 +00:00
Bob Wilson
ad00f21093 Re-commit my previous SSAUpdater changes. The previous version naively tried 
to determine where to place PHIs by iteratively comparing reaching definitions
at each block.  That was just plain wrong.  This version now computes the
dominator tree within the subset of the CFG where PHIs may need to be placed,
and then places the PHIs in the iterated dominance frontier of each definition.
The rest of the patch is mostly the same, with a few more performance
improvements added in.

llvm-svn: 101612
 2010-04-17 03:08:24 +00:00
Bob Wilson
01b8b8ef7d As a temporary workaround for post-RA not handling DebugValue instructions, 
just remove them all.  Radar 7873207 (working around the root problem of
Radar 7759363).

llvm-svn: 101604
 2010-04-17 00:49:11 +00:00
Jakob Stoklund Olesen
2f0fbb4587 Revert "Use a simpler data structure to calculate the least recently used register in RegAllocLocal." 
This reverts commit 101392. It broke a buildbot.

llvm-svn: 101595
 2010-04-17 00:38:36 +00:00
Dale Johannesen
9968eef300 Reapply 101503+101520. These are "obviously correct" [Chris] 
and don't cause any problems on Darwin.

llvm-svn: 101584
 2010-04-17 00:08:21 +00:00
Chris Lattner
36a76e4185 disable r101565: an assert is getting triggered. More lurking badness no doubt. 
llvm-svn: 101583
 2010-04-17 00:05:36 +00:00
Chris Lattner
136547652d add a note 
llvm-svn: 101581
 2010-04-16 23:52:30 +00:00
Eric Christopher
e78496e5f1 Revert 101465, it broke internal OpenGL testing. 
Probably the best way to know that all getOperand() calls have been handled
is to replace that API instead of updating.

llvm-svn: 101579
 2010-04-16 23:37:20 +00:00
Devang Patel
1929d78e71 Add support to emit dwarf ranges. 
llvm-svn: 101575
 2010-04-16 23:33:45 +00:00
Jakob Stoklund Olesen
51248b6cb4 Use a simpler data structure to calculate the least recently used register in RegAllocLocal. 
This makes the local register allocator about 20% faster.

llvm-svn: 101574
 2010-04-16 23:32:37 +00:00
Johnny Chen
8de98d4036 Cast to (uint64_t) instead of relying on the "ul" suffix. 
llvm-svn: 101573
 2010-04-16 23:30:28 +00:00
Dan Gohman
b03b56ff82 Add a getSelectionDAGInfo member to TargetMachine. 
llvm-svn: 101567
 2010-04-16 23:09:10 +00:00
Chris Lattner
acc2443e60 update docs for api change. 
llvm-svn: 101566
 2010-04-16 23:07:44 +00:00
Chris Lattner
d28dcb3ffe building on the new CallGraphSCC abstraction, teach CallGraphSCCPassManager 
to keep the node entries in scc_iterator up to date instead of dangling as
the SCC mutates.

This is a really terrible problem which was causing -g to affect codegen 
because it would permute the memory image of the compiler process.

Thanks to Dale for expertly hunting it down.

llvm-svn: 101565
 2010-04-16 23:04:30 +00:00
Dan Gohman
982923742d Add skeleton target-specific SelectionDAGInfo files. 
llvm-svn: 101564
 2010-04-16 23:04:22 +00:00
Johnny Chen
2b1390e9bc Fixed logic error. Should check Builder for validity before calling SetSession 
on it.

llvm-svn: 101563
 2010-04-16 23:02:25 +00:00
Chris Lattner
a9a7c28cd2 move ReplaceNode out of line, rename scc_iterator::fini -> isAtEnd(). 
No functionality change.

llvm-svn: 101562
 2010-04-16 22:59:24 +00:00
Dan Gohman
b728184213 Regenerate configure script. 
llvm-svn: 101561
 2010-04-16 22:59:06 +00:00
Dan Gohman
377a5d7751 Add an autoconf check for -retain-symbols-file and conditionalize 
use of that option with it. This eliminates an imprecise "Linux"
test, and should help support old versions of gold.

llvm-svn: 101560
 2010-04-16 22:58:15 +00:00
Johnny Chen
1b78f89844 Minor change to make the test case comply with Vd<0> == '0' when Q == '1'. 
llvm-svn: 101559
 2010-04-16 22:48:31 +00:00
Chris Lattner
6a038be777 introduce a new CallGraphSCC class, and pass it around 
to CallGraphSCCPass's instead of passing around a
std::vector<CallGraphNode*>.  No functionality change,
but now we have a much tidier interface.

llvm-svn: 101558
 2010-04-16 22:42:17 +00:00
Johnny Chen
44087236da Fixed a bug in DisassembleN1RegModImmFrm() where a break stmt was missing for a 
case.  Also, the 0xFF hex literal involved in the shift for ESize64 should be
suffixed "ul" to preserve the shift result.

Implemented printHex*ImmOperand() by copying from ARMAsmPrinter.cpp and added a
test case for DisassembleN1RegModImmFrm()/printHex64ImmOperand().

llvm-svn: 101557
 2010-04-16 22:40:20 +00:00
Evan Cheng
b55929892f (i32 sext_in_reg (i32 aext (i16 x)), i16) -> (i32 sext x). No known test case until -promote-16bit is enabled. 
llvm-svn: 101551
 2010-04-16 22:26:19 +00:00
Chris Lattner
7e6e8651b7 tidy up 
llvm-svn: 101548
 2010-04-16 21:57:10 +00:00
Chris Lattner
5d6a95d587 move PrintCallGraphPass out of the middle of CGPassManager. 
llvm-svn: 101543
 2010-04-16 21:43:55 +00:00
Chris Lattner
4671fb68c5 add a missing break back, patch by Nico Schmidt! 
llvm-svn: 101538
 2010-04-16 21:15:15 +00:00
Dan Gohman
b3afc2a215 Create a new TargetSelectionDAGInfo class. This will eventually acquire 
SelectionDAG-specific parts of TargetLowering.

llvm-svn: 101537
 2010-04-16 21:12:11 +00:00
Dan Gohman
2912cb780f Commit this, which should have accompanied 101531. 
llvm-svn: 101532
 2010-04-16 20:22:43 +00:00
Dan Gohman
1119e6060b Eliminate an unnecessary SelectionDAG dependency in getOptimalMemOpType. 
llvm-svn: 101531
 2010-04-16 20:11:05 +00:00