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10390 Commits

Author SHA1 Message Date
Dan Gohman
d98af0a5b8 Eliminate unnecessary empty string literals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110183 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-04 01:39:08 +00:00
Jakob Stoklund Olesen
bae696956b Oops. Don't normalize spill weights twice. 
When the normalizeSpillWeights function was introduced, I forgot to remove this
normalization.

This change could affect register allocation. Hopefully for the better.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110119 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-03 17:21:16 +00:00
Bill Wendling
94e4008fba Early exit and reduce indentation. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110069 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-02 22:06:08 +00:00
Devang Patel
e9a1ccaf80 Free DbgScope created for dead functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110045 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-02 17:32:15 +00:00
Oscar Fuentes
ee56c42168 Prefix next' iterator operation with llvm::'. 
Fixes potential ambiguity problems on VS 2010.

Patch by nobled!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110029 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-02 06:00:15 +00:00
Eli Friedman
1d17d199a4 PR7586: Make sure we don't claim that unknown bits are actually known in the 
ISD::AND case of TargetLowering::SimplifyDemandedBits.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110019 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-02 04:42:25 +00:00
Bill Wendling
57dba1cf53 Reference the personalities. Don't copy them into a new vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109966 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-01 01:34:21 +00:00
Eli Friedman
ad78a88711 Fix for bug reported by Evzen Muller on llvm-commits: make sure to correctly 
check the range of the constant when optimizing a comparison between a
constant and a sign_extend_inreg node.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109854 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-30 06:44:31 +00:00
Benjamin Kramer
1abcd06856 Plug the remaining MC leaks by giving MCObjectStreamer/MCAsmStreamer ownership of the TargetAsmBackend and the MCCodeEmitter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109767 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 17:48:06 +00:00
Dale Johannesen
c46a5f20c5 Comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109765 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 17:45:24 +00:00
Jakob Stoklund Olesen
4bd94f7bbe Fix a bug in the -regalloc=fast handling of exotic two-address instruction with 
multiple defs, like t2LDRSB_POST.

The first def could accidentally steal the physreg that the second, tied def was
required to be allocated to.

Now, the tied use-def is treated more like an early clobber, and the physreg is
reserved before allocating the other defs.

This would never be a problem when the tied def was the only def which is the
usual case.

This fixes MallocBench/gs for thumb2 -O0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109715 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-29 00:52:19 +00:00
Jakob Stoklund Olesen
a0c5bf19bf Print out the regclass of any virtual registers used by a machine instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109608 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 18:35:46 +00:00
Devang Patel
37032350c8 It is FE's responsibility to emit proper directory name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109538 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 20:51:15 +00:00
Jim Grosbach
977fa34df8 Grammar 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109525 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 18:36:27 +00:00
Nate Begeman
e0efc216eb Fix a crash in the dag combiner caused by ConstantFoldBIT_CONVERTofBUILD_VECTOR calling itself 
recursively and returning a SCALAR_TO_VECTOR node, but assuming the input was always a BUILD_VECTOR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109519 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 18:02:18 +00:00
Jim Grosbach
57cb4f8be1 80 column 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109513 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 17:38:47 +00:00
Jim Grosbach
ae64eedae2 fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109511 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 17:14:29 +00:00
Bill Wendling
dfc2c51d12 It's better to have the arrays, which would trigger the creation of stack 
protectors, to be near the stack protectors on the stack. Accomplish this by
tagging the stack object with a predicate that indicates that it would trigger
this. In the prolog-epilog inserter, assign these objects to the stack after the
stack protector but before the other objects.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109481 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 01:55:19 +00:00
Jakob Stoklund Olesen
f0179004e9 Add SplitEditor to SplitKit. This class will be used to edit live intervals and 
rewrite instructions for live range splitting.

Still work in progress.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109469 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-26 23:44:11 +00:00
Dan Gohman
3eca15bdb5 Fix a use-after-free. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109468 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-26 23:40:24 +00:00
Bill Wendling
23295cc1dd Using llvm.eh.catch.all.value instead of .llvm.eh.catch.all.value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109462 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-26 22:36:52 +00:00
Evan Cheng
e0e925efb3 The "excess register pressure" returned by HighRegPressure() is not accurate enough to factor into scheduling priority. Eliminate it and add early exits to speed up scheduling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109449 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-26 21:49:07 +00:00
Dan Gohman
7da5d3fc65 Handle Values with no value in getCopyFromRegs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109415 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-26 18:15:41 +00:00
Dan Gohman
ce0fe5da0d A block dominates itself, by definition. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109402 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-26 17:38:15 +00:00
Duncan Sands
b3893b193b Pacify gcc-4.5 which wrongly thinks that RExcess (passed as the Excess parameter) 
may be used uninitialized in the callers of HighRegPressure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109393 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-26 07:54:17 +00:00
Lang Hames
6f4e4df100 Factored out a bit of common code to mark VNInfos for deletion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109388 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-26 01:49:41 +00:00
Evan Cheng
e28ed16d25 Add comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109383 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-25 18:59:43 +00:00
Bob Wilson
3f92f73970 Fix crashes when scheduling a CopyToReg node -- getMachineOpcode asserts on 
those.  Radar 8231572.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109367 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-25 05:34:27 +00:00
Anton Korobeynikov
8c64b9766e Add hook to insert late LLVM=>LLVM passes just before isel 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109354 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-24 20:48:54 +00:00
Bob Wilson
f28dd88611 Change ScheduleDAGInstrs::Defs and ::Uses to be variable-size vectors 
instead of fixed size arrays, so that increasing FirstVirtualRegister to 16K
won't cause a compile time performance regression.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109330 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-24 06:01:53 +00:00
Devang Patel
2f58485fc8 Use current working directory when Dirname is empty. This only happens when absolute source file path is used on compiler command line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109302 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-24 00:53:22 +00:00
Evan Cheng
70017e44cd Add an ILP scheduler. This is a register pressure aware scheduler that's 
appropriate for targets without detailed instruction iterineries.
The scheduler schedules for increased instruction level parallelism in
low register pressure situation; it schedules to reduce register pressure
when the register pressure becomes high.

On x86_64, this is a win for all tests in CFP2000. It also sped up 256.bzip2
by 16%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109300 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-24 00:39:05 +00:00
Jim Grosbach
734738d3bd Remove too-strict assertion. We may want the vreg copy of the physical register 
to be of a different register class. For example, in Thumb1 if the live-in is
a high register, we want the vreg to be a low register. rdar://8224931

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109291 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-23 23:48:02 +00:00
Devang Patel
5f2f69b648 Revert r109262. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109285 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-23 23:04:41 +00:00
Evan Cheng
3144687df7 - Allow target to specify when is register pressure "too high". In most cases, 
it's too late to start backing off aggressive latency scheduling when most
  of the registers are in use so the threshold should be a bit tighter.
- Correctly handle live out's and extract_subreg etc.
- Enable register pressure aware scheduling by default for hybrid scheduler.
  For ARM, this is almost always a win on # of instructions. It's runtime
  neutral for most of the tests. But for some kernels with high register
  pressure it can be a huge win. e.g. 464.h264ref reduced number of spills by
  54 and sped up by 20%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109279 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-23 22:39:59 +00:00
Dan Gohman
cd20c6fb18 Use the proper type for shift counts. This fixes a bootstrap error. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109265 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-23 21:08:12 +00:00
Devang Patel
f83f42599d IF directory name is empty then try to extract one using absolute file name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109262 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-23 20:36:13 +00:00
Dan Gohman
a4f4d699ec DAGCombine (shl (anyext x, c)) to (anyext (shl x, c)) if the high bits 
are not demanded. This often allows the anyext to be folded away.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109242 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-23 18:03:30 +00:00
Dan Gohman
7c98283f0e Make SDNode::dump() print a newline at the end. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109234 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-23 16:37:47 +00:00
Eric Christopher
54e1791e4b 80-col. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109205 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-23 01:05:59 +00:00
Chris Lattner
134d8eec87 remove the JIT "NeedsExactSize" feature and supporting logic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109167 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-22 21:17:55 +00:00
Gabor Greif
481c4c0734 keep in 80 cols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109122 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-22 17:18:03 +00:00
Gabor Greif
96f1d8ebdd mass elimination of reliance on automatic iterator dereferencing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109103 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-22 13:36:47 +00:00
Gabor Greif
a399781289 undo 80 column trespassing I caused 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109092 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-22 10:37:47 +00:00
Evan Cheng
89ba74d117 Re-apply r109079 with fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109083 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-22 06:24:48 +00:00
Owen Anderson
8b9177aee2 Revert r109079, which broke a lot of CodeGen tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109082 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-22 06:01:28 +00:00
Reid Kleckner
c96a82a534 Initial modifications to MCAssembler and TargetMachine for the MCJIT. 
Patch by Olivier Meurant!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109080 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-22 05:58:53 +00:00
Evan Cheng
a4081238aa Initialize RegLimit only when register pressure is being tracked. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109079 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-22 05:18:41 +00:00
Evan Cheng
4a863e2c75 More register pressure aware scheduling work. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109064 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-21 23:53:58 +00:00
Jim Grosbach
917290043f For ARM/Darwin, add a dwarf entry indicating whether a function is arm or thumb 
rdar://8202967

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109057 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-21 23:03:52 +00:00