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7613 Commits

Author SHA1 Message Date
Dan Gohman
be413b4a40 Add a flag to SDep for tracking which edges are anti-dependence edges. 
llvm-svn: 59785
 2008-11-21 02:27:52 +00:00
Bill Wendling
939fe53962 Update comment to reflect a semblance of reality. 
llvm-svn: 59784
 2008-11-21 02:24:44 +00:00
Dan Gohman
62180eb6f2 Rename SDep's isSpecial to isArtificial, to make this field a little 
less mysterious.

llvm-svn: 59782
 2008-11-21 02:18:56 +00:00
Bill Wendling
0f9b6c3524 Rename "ADDO" to "SADDO" and "UADDO". The "UADDO" isn't equivalent to "ADDC" 
because the boolean it returns to indicate an overflow may not be treated like
as a flag. It could be stored to memory, for instance.

llvm-svn: 59780
 2008-11-21 02:12:42 +00:00
Bill Wendling
02db3b99bf Implement the sadd_with_overflow intrinsic. This is converted into 
"ISD::ADDO". ISD::ADDO is lowered into a target-independent form that does the
addition and then checks if the result is less than one of the operands. (If it
is, then there was an overflow.)

llvm-svn: 59779
 2008-11-21 02:03:52 +00:00
Bill Wendling
239302c6c9 Update comment. 
llvm-svn: 59766
 2008-11-21 00:45:00 +00:00
Dan Gohman
60693dacec Implement ComputeLatency for MachineInstr ScheduleDAGs. Factor 
some of the latency computation logic out of the SDNode
ScheduleDAG code into a TargetInstrItineraries helper method
to help with this.

llvm-svn: 59761
 2008-11-21 00:12:10 +00:00
Bill Wendling
6d749434a5 Add UADDO and SADDO nodes. These will be used for determining an overflow 
condition in an addition operation.

llvm-svn: 59760
 2008-11-21 00:11:16 +00:00
Bill Wendling
d0bd6f6e73 Introduce two new "add" intrinsics. These return the sum plus a bit indicating 
that an overflow/carry occured. These are converted into ISD::[SU]ADDO nodes,
which are lowered in a target-independent way into something sane. Eventually,
each target can implement their own method of checking the overflow/carry flags.

llvm-svn: 59756
 2008-11-21 00:05:31 +00:00
Dan Gohman
b8f4f58938 Delete redundant inline keywords. 
llvm-svn: 59754
 2008-11-20 22:10:21 +00:00
Dan Gohman
0ba3f17e9f Doxygenate comments. 
llvm-svn: 59753
 2008-11-20 22:09:52 +00:00
Bill Wendling
cfc163d249 Reformatting. No functionality change. 
llvm-svn: 59717
 2008-11-20 07:23:34 +00:00
Chris Lattner
527a103e8e add an operator= to assign to smallstring. 
llvm-svn: 59715
 2008-11-20 07:09:17 +00:00
Evan Cheng
2805dcc9a0 - Register scavenger should use MachineRegisterInfo and internal map to find the first use of a register after a given machine instruction. 
- When scavenging a register, in addition to the spill, insert a restore before the first use.
- Abort if client is looking to scavenge a register even when a previously scavenged register is still live.

llvm-svn: 59697
 2008-11-20 02:32:35 +00:00
Dan Gohman
77e3f07d4b Factor out the code for verifying the work of the scheduler, 
extend it a bit, and make use of it in all schedulers, to
ensure consistent checking.

llvm-svn: 59689
 2008-11-20 01:26:25 +00:00
Dan Gohman
f4b2751ee6 Experimental post-pass scheduling support. Post-pass scheduling 
is currently off by default, and can be enabled with
-disable-post-RA-scheduler=false.

This doesn't have a significant impact on most code yet because it doesn't
yet do anything to address anti-dependencies and it doesn't attempt to
disambiguate memory references. Also, several popular targets
don't have pipeline descriptions yet.

The majority of the changes here are splitting the SelectionDAG-specific
code out of ScheduleDAG, so that ScheduleDAG can be moved to
libLLVMCodeGen.a. The interface between ScheduleDAG-using code and
the rest of the scheduling code is somewhat rough and will evolve.

llvm-svn: 59676
 2008-11-19 23:18:57 +00:00
Dan Gohman
32a8ee5c90 Move the code for printing a graph node label for an SUnit into 
a virtual method of SelectionDAG.

llvm-svn: 59667
 2008-11-19 22:09:45 +00:00
Dan Gohman
b5ce3ebed1 Convert SUnit's dump method into a print method and implement 
dump in terms of it.

llvm-svn: 59665
 2008-11-19 21:32:03 +00:00
Devang Patel
e5a07d989e Do not use separate utility to walk all instructions and remove dead dbg intrinsics. Let instcombiner do this job. 
llvm-svn: 59659
 2008-11-19 19:01:37 +00:00
Sanjiv Gupta
32225bad7d Int type for PIC16 is i16. Added i16 intrinsics for memmove, memcpy and memset. 
llvm-svn: 59612
 2008-11-19 08:50:17 +00:00
Chris Lattner
e111ce1265 add a write method. 
llvm-svn: 59595
 2008-11-19 06:45:06 +00:00
Daniel Dunbar
9c71cd5448 LLVMC2: -emit-llvm stops compilation. 
llvm-svn: 59586
 2008-11-19 04:15:56 +00:00
Daniel Dunbar
60f1563256 LLVMC2: Teach llvm_gcc_c tool about -include and -fsyntax-only. 
- Only focusing on llvm_gcc_c for now, eventually this needs to be
   refactored so it can be shared via all the gcc-like tools.

llvm-svn: 59582
 2008-11-19 02:59:00 +00:00
Evan Cheng
fcba3cab0b Fix indentation. 
llvm-svn: 59558
 2008-11-18 22:27:13 +00:00
Devang Patel
233728e8c3 Add new helper pass that strips all symbol names except debugging information. 
This pass makes it easier to test wheter debugging info. influences optimization passes or not.

llvm-svn: 59552
 2008-11-18 21:34:39 +00:00
Oscar Fuentes
d46a90dbdb CMake: Remove HAVE_LT_DLOPEN from config.h.cmake because it was 
removed from config.h.in.

llvm-svn: 59546
 2008-11-18 21:12:01 +00:00
Dan Gohman
04e99d0f3f Add more const qualifiers. This fixes build breakage from r59540. 
llvm-svn: 59542
 2008-11-18 19:49:32 +00:00
Dan Gohman
5926405b4a Make some methods const. 
llvm-svn: 59540
 2008-11-18 19:04:29 +00:00
Dan Gohman
909692c3cd Whitespace cleanups. 
llvm-svn: 59532
 2008-11-18 17:05:42 +00:00
Bill Wendling
3460a79979 Rename stackprotector_create intrinsic to stackprotector. 
llvm-svn: 59519
 2008-11-18 11:01:33 +00:00
Nicolas Geoffray
3cd13e7e65 Implement support for JIT exceptions on X86_64. Relative offsets are 
encoded on 32 bytes, and the personality function is not encoded as
relative.

llvm-svn: 59516
 2008-11-18 10:44:46 +00:00
Bill Wendling
485d094231 Remove the stackprotector_check intrinsic. Use a volatile load instead. 
llvm-svn: 59504
 2008-11-18 07:30:57 +00:00
Dan Gohman
bc8cfae5c3 Change SUnit's dump method to take a ScheduleDAG* instead of 
a SelectionDAG*.

llvm-svn: 59488
 2008-11-18 02:06:40 +00:00
Dan Gohman
5283c5dc53 There is no InstrStage class. 
llvm-svn: 59480
 2008-11-18 01:05:04 +00:00
Mikhail Glushenkov
0c4ad9c7cc Support dependencies between plugins by priority-sorting. 
llvm-svn: 59449
 2008-11-17 17:30:25 +00:00
Mikhail Glushenkov
773924299a Add a layer of indirection to make plugins more flexible. 
Use strings instead of TableGen defs in the compilation graph
definition. Makes it easier for the plugins to modify an existing graph.

llvm-svn: 59447
 2008-11-17 17:29:18 +00:00
Zhongxing Xu
12b52895f2 move partial template specialization to FoldingSet.h. 
llvm-svn: 59434
 2008-11-17 02:40:00 +00:00
Zhongxing Xu
fb7e7e8158 Fix 80-col violation. 
llvm-svn: 59394
 2008-11-16 04:44:41 +00:00
Chris Lattner
047dc0a77a add a new m_Specific pattern that matches only if we have a specific Value*. 
llvm-svn: 59393
 2008-11-16 04:38:30 +00:00
Chris Lattner
f612178d64 add a new template for matching a select between two constants. 
llvm-svn: 59391
 2008-11-16 04:33:10 +00:00
Zhongxing Xu
cfe0df8609 Add partial specialization of FoldingSetTrait for ImmutableList. 
llvm-svn: 59387
 2008-11-16 04:23:49 +00:00
Zhongxing Xu
b62b5ce749 Fix 80-column violation. 
llvm-svn: 59385
 2008-11-16 04:14:33 +00:00
Nick Lewycky
3889c7ebf0 Clean up some strange whitespace. 
llvm-svn: 59373
 2008-11-15 20:32:33 +00:00
Zhongxing Xu
bce4760ed8 Add Profile method to ImmutableList. 
llvm-svn: 59362
 2008-11-15 09:26:02 +00:00
Oscar Fuentes
9abd2759a2 CMake: Adds header and TableGen files to Visual Studio solution. A new 
dummy library, `llvm_headers_do_not_build', is created for containing
all header and TableGen files under include/llvm.

llvm-svn: 59346
 2008-11-15 02:08:08 +00:00
Oscar Fuentes
a7630d40c0 CMake: Moved generation of Intrinsics.gen to 
include/llvm/CMakeLists.txt. Does it with the `tablegen' cmake macro.

llvm-svn: 59342
 2008-11-15 00:24:38 +00:00
Dan Gohman
521cee6a9c Add support for building a ScheduleDAG from MachineInstrs. This is currently 
fairly conservative; it doesn't do alias-analysis queries and it doesn't
attempt to break anti-dependencies.

llvm-svn: 59324
 2008-11-14 21:47:58 +00:00
Richard Osborne
8f86bb4d20 Add XCore intrinsics for getid (returns thread id) and bitrev (reverses 
bits in a word).

llvm-svn: 59296
 2008-11-14 10:12:16 +00:00
Dan Gohman
3abe79e3e9 Add a version of NewSUnit for creating units with MachineInstrs. 
llvm-svn: 59282
 2008-11-14 00:41:36 +00:00
Dan Gohman
f92f2d0c97 Initial support for carrying MachineInstrs in SUnits. 
llvm-svn: 59278
 2008-11-14 00:06:09 +00:00