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10288 Commits

Author SHA1 Message Date
Eric Christopher
faf5c76114 80-col. 
llvm-svn: 109205
 2010-07-23 01:05:59 +00:00
Chris Lattner
8f3adc9057 remove the JIT "NeedsExactSize" feature and supporting logic. 
llvm-svn: 109167
 2010-07-22 21:17:55 +00:00
Gabor Greif
59f9970ba5 keep in 80 cols 
llvm-svn: 109122
 2010-07-22 17:18:03 +00:00
Gabor Greif
dde79d8f1a mass elimination of reliance on automatic iterator dereferencing 
llvm-svn: 109103
 2010-07-22 13:36:47 +00:00
Gabor Greif
3e44ea1917 undo 80 column trespassing I caused 
llvm-svn: 109092
 2010-07-22 10:37:47 +00:00
Evan Cheng
bf32e54bac Re-apply r109079 with fix. 
llvm-svn: 109083
 2010-07-22 06:24:48 +00:00
Owen Anderson
6c55cccf87 Revert r109079, which broke a lot of CodeGen tests. 
llvm-svn: 109082
 2010-07-22 06:01:28 +00:00
Reid Kleckner
d85e3c5a86 Initial modifications to MCAssembler and TargetMachine for the MCJIT. 
Patch by Olivier Meurant!

llvm-svn: 109080
 2010-07-22 05:58:53 +00:00
Evan Cheng
bd81bff672 Initialize RegLimit only when register pressure is being tracked. 
llvm-svn: 109079
 2010-07-22 05:18:41 +00:00
Evan Cheng
285903853f More register pressure aware scheduling work. 
llvm-svn: 109064
 2010-07-21 23:53:58 +00:00
Jim Grosbach
965a73a28c For ARM/Darwin, add a dwarf entry indicating whether a function is arm or thumb 
rdar://8202967

llvm-svn: 109057
 2010-07-21 23:03:52 +00:00
Owen Anderson
a57b97e7e7 Fix batch of converting RegisterPass<> to INTIALIZE_PASS(). 
llvm-svn: 109045
 2010-07-21 22:09:45 +00:00
Jim Grosbach
a8683bb033 80 column and trailing whitespace cleanup 
llvm-svn: 109037
 2010-07-21 21:21:52 +00:00
Dan Gohman
093cb79d4b Disallow null as a named metadata operand. 
Make MDNode::destroy private.
Fix the one thing that used MDNode::destroy, outside of MDNode itself.

One should never delete or destroy an MDNode explicitly. MDNodes
implicitly go away when there are no references to them (implementation
details aside).

llvm-svn: 109028
 2010-07-21 18:54:18 +00:00
Lang Hames
bdafcc633d Changed OStream templates to functions on raw_ostream, removed the unused "renderWarnings" function. 
llvm-svn: 109003
 2010-07-21 09:02:06 +00:00
Evan Cheng
a77f3d3b37 Teach bottom up pre-ra scheduler to track register pressure. Work in progress. 
llvm-svn: 108991
 2010-07-21 06:09:07 +00:00
Jakob Stoklund Olesen
0fef9dda8e Change the createSpiller interface to take a MachineFunctionPass argument. 
The spillers can pluck the analyses they need from the pass reference.

Switch some never-null pointers to references.

llvm-svn: 108969
 2010-07-20 23:50:15 +00:00
Jakob Stoklund Olesen
ed4075cc3b Implement loop splitting analysis. 
Determine which loop exit blocks need a 'pre-exit' block inserted.
Recognize when this would be impossible.

llvm-svn: 108941
 2010-07-20 21:46:58 +00:00
Dale Johannesen
6e5ec6263e Fix test for switch statements and increase 
threshold a bit per experimentation.

llvm-svn: 108935
 2010-07-20 21:29:12 +00:00
Jakob Stoklund Olesen
ff095507e3 Appease the colonials. 
llvm-svn: 108845
 2010-07-20 16:12:37 +00:00
Jakob Stoklund Olesen
36d12c679d Beginning SplitKit - utility classes for live range splitting. 
This is a work in progress. So far we have some basic loop analysis to help
determine where it is useful to split a live range around a loop.

The actual loop splitting code from Splitter.cpp is also going to move in here.

llvm-svn: 108842
 2010-07-20 15:41:07 +00:00
Lang Hames
31dfb75b52 Updated css classes for the pressure table legend. 
llvm-svn: 108839
 2010-07-20 14:35:55 +00:00
Lang Hames
2ff2193a80 Oops - I tables render poorly in Chrome without this explicit height specification. 
llvm-svn: 108824
 2010-07-20 10:29:46 +00:00
Lang Hames
a475ab7f02 Use run-length encoding to represent identical adjacent cells in the pressure 
and interval table. Reduces output HTML file sizes by ~80% in my test cases.

Also fix access of private member type by << operator.

llvm-svn: 108823
 2010-07-20 10:18:54 +00:00
Lang Hames
716b184108 Added support for turning HTML indentation on and off (indentation off by default). 
Reduces output file size ~20% on my test cases.

llvm-svn: 108822
 2010-07-20 09:13:29 +00:00
Lang Hames
a93fe2de3c Switched to rendering after allocation (but before rewriting) in PBQP. 
Updated renderer to use allocation information from VirtRegMap (if
available) to render spilled intervals differently.

llvm-svn: 108815
 2010-07-20 07:41:44 +00:00
Dale Johannesen
08645f1991 Don't hoist things out of a large switch inside a 
loop, for the reasons in the comments.  This is a
major win on 253.perlbmk on ARM Darwin.  I expect it
to be a good heuristic in general, but it's possible
some things will regress; I'll be watching.
7940152.

llvm-svn: 108792
 2010-07-20 00:50:13 +00:00
Stuart Hastings
61475c5c3c Correct line info for declarations/definitions. Radar 8063111. 
llvm-svn: 108784
 2010-07-19 23:56:30 +00:00
Devang Patel
d61b735d25 Fix memory leak reported by valgrind. 
Do not visit operands of old instruction. Visit all operands of new instruction.

llvm-svn: 108767
 2010-07-19 23:25:39 +00:00
Dan Gohman
b5e918dc05 After a custom inserter, in a block which has constant instructions, 
update the current basic block in addition to the current insert
position, so that they remain consistent. This fixes rdar://8204072.

llvm-svn: 108765
 2010-07-19 22:48:56 +00:00
Evan Cheng
10f99a3490 ARM has to provide its own TargetLowering::findRepresentativeClass because its scalar floating point registers alias its vector registers. 
llvm-svn: 108761
 2010-07-19 22:15:08 +00:00
Evan Cheng
7a135510e3 Teach computeRegisterProperties() to compute "representative" register class for legal value types. A "representative" register class is the largest legal super-reg register class for a value type. e.g. On i386, GR32 is the rep register class for i8 / i16 / i32; on x86_64 it would be GR64. 
This property will be used by the register pressure tracking instruction scheduler.

llvm-svn: 108735
 2010-07-19 18:47:01 +00:00
Jakob Stoklund Olesen
a58a7e7f9e Spillers may alter MachineLoopInfo when breaking critical edges, so make it 
non-const.

llvm-svn: 108734
 2010-07-19 18:41:20 +00:00
Devang Patel
18efced1a2 Fix PR 7662. 
Do not try to insert local variable info to a DIE used for function declaration.

llvm-svn: 108731
 2010-07-19 17:53:55 +00:00
Benjamin Kramer
58c283ee85 Update CMake build. 
llvm-svn: 108700
 2010-07-19 15:37:03 +00:00
Lang Hames
6624efb711 Render MachineFunctions to HTML pages, with options to render register 
pressure estimates and liveness alongside.

Still experimental.

llvm-svn: 108698
 2010-07-19 15:22:28 +00:00
Owen Anderson
9c271e2835 Remove r108639 now that it is handled by InstCombine instead. 
llvm-svn: 108688
 2010-07-19 08:10:24 +00:00
Daniel Dunbar
419197cc4d Target: Give the TargetAsmParser access to the TargetMachine. 
- Unfortunate, but necessary for now to handle subtarget instruction matching. Eventually we should factor out the lower level target machine information so we don't need to do this.

llvm-svn: 108664
 2010-07-19 00:33:49 +00:00
Daniel Dunbar
7f5bf5ae2a MC: Move several clients to using AsmParser constructor function. 
llvm-svn: 108645
 2010-07-18 18:31:33 +00:00
Douglas Gregor
8ff89f5c02 Fix struct/class mismatch 
llvm-svn: 108642
 2010-07-18 11:47:56 +00:00
Owen Anderson
f7f9c8a2f7 Add a DAGCombine xform to fold away redundant float->double->float conversions around sqrt instructions. 
I am assured by people more knowledgeable than me that there are no rounding issues in eliminating this.

This fixed <rdar://problem/8197504>.

llvm-svn: 108639
 2010-07-18 08:47:54 +00:00
Lang Hames
1392b8eb79 Added -pbqp-pre-coalescing flag to PBQP. If enabled this will cause PBQP to require 
LoopSplitter be run prior to register allocation.

Entirely for testing purposes at the moment.

llvm-svn: 108634
 2010-07-18 00:57:59 +00:00
Bill Wendling
ac67e99d53 Use isPrologLabel() instead of checking the opcode directly. 
llvm-svn: 108628
 2010-07-17 19:18:44 +00:00
Zhongxing Xu
b653ce648d update CMakeLists.txt 
llvm-svn: 108620
 2010-07-17 12:12:42 +00:00
Lang Hames
5864012cc0 Removed unused inRange variable. 
llvm-svn: 108618
 2010-07-17 11:43:07 +00:00
Lang Hames
225977d4f9 LoopSplitter - intended to split live intervals over loop boundaries. 
Still very much under development. Comments and fixes will be forthcoming.

(This commit includes some small tweaks to LiveIntervals & LoopInfo to support the splitter)

llvm-svn: 108615
 2010-07-17 07:34:01 +00:00
Lang Hames
211e7ce7e7 Iterating over sets of pointers in a heuristic was a bad idea. Switching 
any command line paramater changed the register allocation produced by
PBQP.

Turns out variety is not the spice of life.

Fixed some comparators, added others. All good now.

llvm-svn: 108613
 2010-07-17 06:31:41 +00:00
Eric Christopher
0baaa9bcc1 Propagate alloca alignment information via variable size object frame 
information.

No functional change yet.

llvm-svn: 108583
 2010-07-17 00:28:22 +00:00
Bill Wendling
bf8370ff36 Consider this function: 
void foo() { __builtin_unreachable(); }

It will output the following on Darwin X86:

_func1:
Leh_func_begin0:
        pushq %rbp
Ltmp0:
        movq %rsp, %rbp
Ltmp1:
Leh_func_end0:

This prolog adds a new Call Frame Information (CFI) row to the FDE with an
address that is not within the address range of the code it describes -- part is
equal to the end of the function -- and therefore results in an invalid EH
frame. If we emit a nop in this situation, then the CFI row is now within the
address range.

llvm-svn: 108568
 2010-07-16 22:51:10 +00:00
Bill Wendling
499f797cdd Rename DBG_LABEL PROLOG_LABEL, because it's only used during prolog emission and 
thus is a much more meaningful name.

llvm-svn: 108563
 2010-07-16 22:20:36 +00:00