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Author SHA1 Message Date
Bob Wilson
c5fa56c805 Refactor target hook for tail duplication as requested by Chris. 
Make tail duplication of indirect branches much more aggressive (for targets
that indicate that it is profitable), based on further experience with
this transformation.  I compiled 3 large applications with and without
this more aggressive tail duplication and measured minimal changes in code
size.  ("size" on Darwin seems to round the text size up to the nearest
page boundary, so I can only say that any code size increase was less than
one 4k page.) Radar 7421267.

llvm-svn: 89814
 2009-11-24 23:35:49 +00:00
Dale Johannesen
5809ff0e58 Do not store R31 into the caller's link area on PPC. 
This violates the ABI (that area is "reserved"), and
while it is safe if all code is generated with current
compilers, there is some very old code around that uses
that slot for something else, and breaks if it is stored
into.  Adjust testcases looking for current behavior.
I've verified that the stack frame size is right in all
testcases, whether it changed or not.  7311323.

llvm-svn: 89811
 2009-11-24 22:59:02 +00:00
Devang Patel
c68c2293a7 Enable debug info for ppc-darwin. 
llvm-svn: 89803
 2009-11-24 21:38:54 +00:00
Devang Patel
f01ac414c5 Use StringRef instead of std::string in DIEString. 
llvm-svn: 89793
 2009-11-24 19:42:17 +00:00
Devang Patel
9cd7c1ab8e Remove DebugLabelFolder pass. It is not used by dwarf writer anymore. 
llvm-svn: 89790
 2009-11-24 19:37:07 +00:00
Devang Patel
d7b0871621 Swith to pubtypes section before emitting pub types. 
llvm-svn: 89787
 2009-11-24 19:18:41 +00:00
Daniel Dunbar
740136a956 Remove bogus error handling code. 
llvm-svn: 89786
 2009-11-24 19:03:33 +00:00
Edward O'Callaghan
fbaf414cc7 Fix comments as pre-post review for rev.89765. 
llvm-svn: 89770
 2009-11-24 16:29:23 +00:00
Edward O'Callaghan
69ba53657a Provide Path::isSpecialFile interface for PR5568. 
llvm-svn: 89765
 2009-11-24 15:19:10 +00:00
Edward O'Callaghan
8c1cd4fdbc Fix for PR5373, Credit to Jakub Staszak. 
llvm-svn: 89758
 2009-11-24 11:51:52 +00:00
Evan Cheng
b81878ed80 Enable predication of NEON instructions in Thumb2 mode. 
llvm-svn: 89748
 2009-11-24 08:06:15 +00:00
Jeffrey Yasskin
70dc21d5df Oops. Re-disable JITTest.NoStubs on ARM and PPC since they still use stubs to 
make far calls work.

llvm-svn: 89733
 2009-11-24 02:11:14 +00:00
Dan Gohman
7c41aa00c0 Delete some dead and non-obvious code. 
llvm-svn: 89729
 2009-11-24 01:48:15 +00:00
Devang Patel
11c5d09a35 Emit pubtypes. 
llvm-svn: 89725
 2009-11-24 01:14:22 +00:00
Dale Johannesen
ee890316d5 Make capitalization of names starting "is" more consistent. 
No functional change.

llvm-svn: 89724
 2009-11-24 01:09:07 +00:00
Evan Cheng
179a11776c Data type suffix must come after predicate. 
llvm-svn: 89723
 2009-11-24 01:05:23 +00:00
David Goodwin
7945ead4d8 <rdar://problem/6721894>. Allow multiple registers to be renamed together (super and sub) if necessary to break an anti-dependence. 
llvm-svn: 89722
 2009-11-24 00:59:08 +00:00
Anton Korobeynikov
0f885eb7fd Materialize global addresses via movt/movw pair, this is always better 
than doing the same via constpool:
1. Load from constpool costs 3 cycles on A9, movt/movw pair - just 2.
2. Load from constpool might stall up to 300 cycles due to cache miss.
3. Movt/movw does not use load/store unit.
4. Less constpool entries => better compiler performance.

This is only enabled on ELF systems, since darwin does not have needed
relocations (yet).

llvm-svn: 89720
 2009-11-24 00:44:37 +00:00
Jim Grosbach
a142a709c8 80 column violations 
llvm-svn: 89718
 2009-11-24 00:20:27 +00:00
Jeffrey Yasskin
0a0b21f8c5 * Move stub allocation inside the JITEmitter, instead of exposing a 
way for each TargetJITInfo subclass to allocate its own stubs. This
means stubs aren't as exactly-sized anymore, but it lets us get rid of
TargetJITInfo::emitFunctionStubAtAddr(), which lets ARM and PPC
support the eager JIT, fixing http://llvm.org/PR4816.

* Rename the JITEmitter's stub creation functions to describe the kind
of stub they create. So far, all of them create lazy-compilation
stubs, but they sometimes get used when far-call stubs are needed.
Fixing http://llvm.org/PR5201 will involve fixing this.

llvm-svn: 89715
 2009-11-23 23:35:19 +00:00
Jim Grosbach
910fa44a53 enable iv-users simplification by default 
llvm-svn: 89713
 2009-11-23 23:25:54 +00:00
Dan Gohman
b5ec39e2dc Remove ISD::DEBUG_LOC and ISD::DBG_LABEL, which are no longer used. 
Note that "hasDotLocAndDotFile"-style debug info was already broken;
people wanting this functionality should implement it in the
AsmPrinter/DwarfWriter code.

llvm-svn: 89711
 2009-11-23 23:20:51 +00:00
Jeffrey Yasskin
ed6d1ce9ae Allow more than one stub to be being generated at the same time. 
It's probably better in the long run to replace the
indirect-GlobalVariable system. That'll be done after a subsequent
patch.

llvm-svn: 89708
 2009-11-23 22:49:00 +00:00
Evan Cheng
8c9f6147cd Massive refactoring of NEON instructions. Separate opcode from data size specifier suffix, move \t up stream to instruction format, and fix more 80 column violations. 
This fixes the NEON asm printing so the "predicate" field is printed between the opcode and the data type suffix.

llvm-svn: 89706
 2009-11-23 21:57:23 +00:00
Dan Gohman
24a93f78ae Simplify this code. 
llvm-svn: 89702
 2009-11-23 21:30:55 +00:00
Dan Gohman
e5ed49c40d Print the debug info line and column in MachineInstr::print even when there's 
no filename. This situation is apparently fairly common right now.

llvm-svn: 89701
 2009-11-23 21:29:08 +00:00
Jim Grosbach
76b545e988 move fconst[sd] to UAL. <rdar://7414913> 
llvm-svn: 89700
 2009-11-23 21:08:25 +00:00
Johnny Chen
e59a67f527 Partially revert r84730 by removing N2VDup from ARMInstrFormats.td and modifying 
VDUPLND and VDUPLNQ to derive from N2V instead of N2VDup.  VDUPLND and VDUPLNQ
now expect op19_18 and op17_16 as the first two args.

llvm-svn: 89699
 2009-11-23 21:00:43 +00:00
Jim Grosbach
b7607ee5fe update test for 89694 
llvm-svn: 89695
 2009-11-23 20:39:53 +00:00
Jim Grosbach
bbb786facf fold immediate of a + Const into the user as a subtract if it can fit as a negated two-part immediate. 
llvm-svn: 89694
 2009-11-23 20:35:53 +00:00
Johnny Chen
9999d2524e Revert r84572 by removing N3VImm from ARMInstrFormats.td now that we can specify 
{?,?,?,?} as op11_8 for VEXTd and VEXTq.

llvm-svn: 89693
 2009-11-23 20:09:13 +00:00
Devang Patel
80eee0d8a4 Add CreateLocation varinat that accepts MDNode (with a default value). 
llvm-svn: 89689
 2009-11-23 19:11:20 +00:00
Devang Patel
6197d0b2eb Revert r89487. 
llvm-svn: 89686
 2009-11-23 18:43:37 +00:00
Johnny Chen
b49fe624e7 Partially revert r89377 by removing NLdStLN class definition from 
ARMInstrFormats.td and fixing VLD[234]LN* and VST[234]LN* to derive from NLdSt
instead of NLdStLN.

llvm-svn: 89684
 2009-11-23 18:16:16 +00:00
Dan Gohman
153de919a3 Move CopyCatchInfo into FunctionLoweringInfo.cpp too, for consistency. 
llvm-svn: 89683
 2009-11-23 18:12:11 +00:00
Dan Gohman
d23a0a12d9 Rename SelectionDAGLowering to SelectionDAGBuilder, and rename 
SelectionDAGBuild.cpp to SelectionDAGBuilder.cpp.

llvm-svn: 89681
 2009-11-23 18:04:58 +00:00
Johnny Chen
1116f46301 Make it clear that the index bit(s) of Vector Get Lane and Vector Set Lane 
should be left unspecified now that Bob Wilson has fixed pr5470.

llvm-svn: 89676
 2009-11-23 17:48:17 +00:00
Dan Gohman
4495850afb Move RegsForValue to an anonymous namespace, since it is only used 
in this file.

llvm-svn: 89675
 2009-11-23 17:46:23 +00:00
Dan Gohman
b0befa7c20 Move some more code out of SelectionDAGBuild.cpp and into 
FunctionLoweringInfo.cpp.

llvm-svn: 89674
 2009-11-23 17:42:46 +00:00
David Goodwin
07713477dc Minor itinerary fixes for FP instructions. 
llvm-svn: 89672
 2009-11-23 17:34:12 +00:00
Ted Kremenek
b63a5eedf7 Update CMake file. 
llvm-svn: 89671
 2009-11-23 17:26:04 +00:00
Dan Gohman
086e19c874 Move the FunctionLoweringInfo class and some related utility functions out 
of SelectionDAGBuild.h/cpp into its own files, to help separate
general lowering logic from SelectionDAG-specific lowering logic.

llvm-svn: 89667
 2009-11-23 17:16:22 +00:00
Chris Lattner
23bebfe8d5 fix comment, thanks all :) 
llvm-svn: 89666
 2009-11-23 17:07:35 +00:00
Chris Lattner
1637c0e720 use the new isNoAlias method to simplify some code, only do an escaping check if 
we have a non-constant pointer.  Constant pointers can't be local.

llvm-svn: 89665
 2009-11-23 16:46:41 +00:00
Chris Lattner
29221ce8d7 whitespace cleanup, tidying 
llvm-svn: 89664
 2009-11-23 16:45:27 +00:00
Chris Lattner
faf117b46b speed up BasicAA a bit by implementing a long-standing TODO. 
llvm-svn: 89663
 2009-11-23 16:44:43 +00:00
Chris Lattner
51f6279013 add a helper 
llvm-svn: 89662
 2009-11-23 16:38:54 +00:00
Dan Gohman
29dbc79996 Move FunctionPassManagerImpl's dumpArguments and dumpPasses calls 
out of its run function and into its doInitialization method, so
that it does the dump once instead of once per function.

llvm-svn: 89660
 2009-11-23 16:24:18 +00:00
Dan Gohman
58bb87921b Make ConstantFoldConstantExpression recursively visit the entire 
ConstantExpr, not just the top-level operator. This allows it to
fold many more constants.

Also, make GlobalOpt call ConstantFoldConstantExpression on
GlobalVariable initializers.

llvm-svn: 89659
 2009-11-23 16:22:21 +00:00
Dan Gohman
0ef3e7cf76 Fix a use of an invalidated iterator in the case where there are multiple 
adjacent uses of a dead basic block from the same user. This fixes PR5596.

llvm-svn: 89658
 2009-11-23 16:13:39 +00:00