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c3348a77f7
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6078 Commits

Author SHA1 Message Date
Bill Wendling
c3348a77f7 - Use "moveAfter" instead of "remove/insert" of a basic block. 
- Use less indentation in coding.
- Shorten description.
- Update comments.
- Move code around


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59496 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-18 05:32:11 +00:00
Dan Gohman
6c2fe2237b Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59489 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-18 02:50:01 +00:00
Dan Gohman
3cc6243ddf Change SUnit's dump method to take a ScheduleDAG* instead of 
a SelectionDAG*.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59488 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-18 02:06:40 +00:00
Bill Wendling
8f55b3d67d Revert r59464. It was causing this failure: 
Running /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/dg.exp ...
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/fneg.ll
Failed with signal(SIGABRT) at line 1
while running:  llvm-as < /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/fneg.ll |  llc -march=xcore > fneg.ll.tmp1.s
Assertion failed: (VT.isFloatingPoint() && "Cannot create integer FP constant!"), function getConstantFP, file /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/lib/CodeGen/SelectionDAG/SelectionDAG.cpp, line 913.
0   llc                                 0x0092115c _ZN4llvm3sys18RemoveFileOnSignalERKNS0_4PathEPSs + 844
1   libSystem.B.dylib                   0x9217809b _sigtramp + 43
2   ???                                 0xffffffff 0x0 + 4294967295
3   libSystem.B.dylib                   0x921f0ec2 raise + 26
4   libSystem.B.dylib                   0x9220047f abort + 73
5   libSystem.B.dylib                   0x921f2063 __assert_rtn + 101
6   llc                                 0x005a5b0a _ZN4llvm12SelectionDAG13getConmake[1]: *** [check-local] Error 1
make: *** [check] Error 2



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59487 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-18 01:49:24 +00:00
Dan Gohman
2d093f3560 Avoid using a loop in ReleasePred and ReleaseSucc methods to compute the 
new CycleBound value. Instead, just update CycleBound on each call.
Also, make ReleasePred and ReleaseSucc methods more consistent accross
the various schedulers.

This also happens to make ScheduleDAGRRList's CycleBound computation
somewhat more interesting, though it still doesn't have any noticeable
effect, because no current targets that use the register-pressure
reduction scheduler provide pipeline models.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59475 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-18 00:38:59 +00:00
Dan Gohman
8123419f2b Eliminate some trivial differences between the ScheduleNodeTopDown 
functions in these two schedulers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59465 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-17 21:31:02 +00:00
Duncan Sands
7fed65a68d Add soft float support for a bunch more operations. Original 
patch by Richard Osborne, tweaked and extended by your humble
servant.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59464 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-17 20:52:38 +00:00
Dan Gohman
e93483d855 Don't bother doing latency calculations in the "fast" scheduler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59461 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-17 19:52:36 +00:00
Dan Gohman
2dcca9d53e Use SUnit's CycleBound field instead of duplicating it in 
a side-car datastructure


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59458 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-17 19:45:19 +00:00
Richard Osborne
104de6cf7b Don't produce ADDC/ADDE when expanding SHL unless they are legal 
for the target. This fixes PR3080.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59450 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-17 17:34:31 +00:00
Dan Gohman
6560c000a1 Don't use the isPending flag to mean what the isAvailable flag means. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59445 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-17 16:37:30 +00:00
Mon P Wang
28088d3c04 Fixed legalization of CONVERT_RNDSAT for integers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59432 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-17 00:41:12 +00:00
Lang Hames
27601ef832 Big PBQP allocator update. Adds coalescing support, stack slot coloring, several bug-fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59414 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-16 12:12:54 +00:00
Mon P Wang
c7849c22f4 Improved shuffle normalization to avoid using extract/build when we 
can extract using different indexes for two vectors. Added a few tests
for vector shuffles.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59399 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-16 05:06:27 +00:00
Duncan Sands
c529168f29 When splitting a SHUFFLE_VECTOR, try to have the result 
use SHUFFLE_VECTOR instead.  If not practical, fall back
to the old scheme of building the split result by hand
using a BUILD_VECTOR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59361 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-15 09:25:38 +00:00
Mon P Wang
49292f1651 Add missing widen operations, fixed widening for extracting a subvector, 
and when loading/storing a widen vector, make sure that they are loaded
and stored in consecutive order.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59357 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-15 06:05:52 +00:00
Dan Gohman
14ad6fce43 Correct a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59341 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-15 00:24:23 +00:00
Dan Gohman
ade9f18934 Move ScheduleDAGList's LatencyPriorityQueue class out to a separate file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59340 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-15 00:23:40 +00:00
Dan Gohman
7e6a1bc0fa 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59324 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-14 21:47:58 +00:00
Lang Hames
56c523c63b Test commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59293 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-14 06:51:35 +00:00
Dan Gohman
8f6c6d4c5f For post-regalloc scheduling, remove the instructions from the block 
before re-inserting them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59281 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-14 00:33:17 +00:00
Dan Gohman
90c5201dd1 Check in the correct version of the patch in r59279. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59280 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-14 00:32:34 +00:00
Dan Gohman
505a551dab Debug printing for SUnits that carry MachineInstrs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59279 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-14 00:28:56 +00:00
Dan Gohman
f449bf36ef Initial support for carrying MachineInstrs in SUnits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59278 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-14 00:06:09 +00:00
Dan Gohman
c3c129fd8b Change DOTGraphTraits<ScheduleDAG*>::getGraphName how to find the name of 
the current function on its own, rather than relying on the SelectionDAG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59277 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-13 23:45:55 +00:00
Dan Gohman
d23e0f81bc Remove the FlaggedNodes member from SUnit. Instead of requiring each SUnit 
to carry a SmallVector of flagged nodes, just calculate the flagged nodes
dynamically when they are needed.

The local-liveness change is due to a trivial scheduling change where
the scheduler arbitrary decision differently.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59273 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-13 23:24:17 +00:00
Owen Anderson
711fd3db2d Don't allow the restore point to be placed after terminators. With this change, 
MultiSource/Applications is clean with the prealloc splitter.  Some failures
remain in SPEC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59267 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-13 21:53:14 +00:00
Dan Gohman
550f5afb68 Make the Node member of SUnit private, and add accessors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59264 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-13 21:36:12 +00:00
Dan Gohman
a23b3b803e Change ScheduleDAG's DAG member from a reference to a pointer, to prepare 
for the possibility of scheduling without a SelectionDAG being present.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59263 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-13 21:21:28 +00:00
Dan Gohman
4a829ecc54 Use find_first/find_next to iterate through all the set bits in a 
BitVector, instead of manually testing each bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59246 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-13 16:31:27 +00:00
Bill Wendling
e9e6bdf27f Implement stack protectors as function attributes: "ssp" and "sspreq". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59202 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-13 01:02:14 +00:00
Dan Gohman
bc5cbb8be9 Move the code that inserts X87 FP_REG_KILL instructions from a 
special-purpose hook to a new pass. Also, add check to see if any
x87 virtual registers are used, to avoid doing any work in the
common case that no x87 code is needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59190 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-12 22:55:05 +00:00
Dale Johannesen
7e298ed379 Fix unsigned char->ppcf128 conversion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59150 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-12 18:38:44 +00:00
Dan Gohman
2d9716f7bf Do the LiveVariables update before printing the instruction in 
the debug output, so that the updated liveness flags are
reflected in the debug output.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59147 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-12 17:15:19 +00:00
Dan Gohman
4cbb3ca67d Remove some debugging code made redundant by the change to do 
coalescing as a separate pass rather than inside of
LiveIntervalAnalysis.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59146 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-12 17:09:23 +00:00
Duncan Sands
1e465a35c8 Simplify SplitVecRes_EXTRACT_SUBVECTOR. This means 
that it no longer handles non-power-of-two vectors.
However it previously only handled them sometimes,
depending on obscure numerical relationships between
the index and vector type.  For example, for a vector
of length 6, it would succeed if and only if the
index was an even multiple of 6.  I consider this
more confusing than useful.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59122 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-12 08:37:57 +00:00
Duncan Sands
245146b58a Correct some thinkos in the expansion of ADD/SUB 
when the target does not support ADDC/SUBC.  This
fixes PR3044.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59120 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-12 08:23:26 +00:00
Dale Johannesen
cbf7cf50ec Fix the testb optimization so x86 also bootstraps. 
Reenable test.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59101 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-12 02:00:35 +00:00
Owen Anderson
80fe8737eb Don't walk into predecessors in which the vreg is not live when doing shrinkwrapping. 
This lets several failing tests get farther along, but doesn't completely fix any of them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59086 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 22:11:27 +00:00
Dan Gohman
b13af2f2ec In ScheduleDAGRRList::CopyAndMoveSuccessors, create the SUnit for the load 
before creating the SUnit for the operation that it was unfolded from. This
allows each SUnit to have all of its predecessor SUnits available at the time
it is created. I don't know yet if this will be absolutely required, but it
is a little tidier to do it this way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59083 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 21:34:44 +00:00
Dan Gohman
eb9dbf117f Avoid relying on the SelectionDAG for initializing the MachineFunction and 
TargetLoweringInfo variables for the scheduler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59082 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 21:31:56 +00:00
Dan Gohman
9b75b37375 Change the scheduler accessor methods to accept an explicit TargetMachine 
argument instead of taking the SelectionDAG's TargetMachine. This is
needed for some upcoming scheduler changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59055 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 17:50:47 +00:00
Bill Wendling
ae89bb1443 Fix for PR3040: 
The CC was changed, but wasn't checked to see if it was legal if the DAG
combiner was being run after legalization. Threw in a couple of checks just to
make sure that it's okay. As far as the PR is concerned, no back-end target
actually exhibited this problem, so there isn't an associated testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59035 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 08:25:46 +00:00
Mon P Wang
00ec49b6ba Cleaned up and fix bugs in convert_rndsat node 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59025 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 05:40:06 +00:00
Bill Wendling
22511ed2fe Small simplification. Use the iterator already present as the insertion point. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59008 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-10 23:38:59 +00:00
Bill Wendling
d0ab34bf8f Temporarily revert r58979 and related patch. It's causing a failure in X86 bootstrap: 
Comparing stages 2 and 3
warning: ./cc1-checksum.o differs
warning: ./cc1obj-checksum.o differs
warning: ./cc1objplus-checksum.o differs
warning: ./cc1plus-checksum.o differs
Bootstrap comparison failure!
./alias.o differs
./alloc-pool.o differs
./attribs.o differs
./bb-reorder.o differs
./bitmap.o differs
./build/errors.o differs
./build/genattrtab.o differs
./build/genautomata.o differs
./build/genemit.o differs
./build/genextract.o differs
...

-bw


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59003 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-10 21:22:06 +00:00
Bill Wendling
7205677a46 - Make sure that we don't over-increment the iterator when going through the 
basic blocks.
- Minor code clean-up.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59002 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-10 21:13:10 +00:00
Mon P Wang
77cdf30742 Added CONVERT_RNDSAT (conversion with rounding and saturation) SDNode to 
support targets that support these conversions. Users should avoid using
this node as the current targets don't generating code for it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59001 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-10 20:54:11 +00:00
Duncan Sands
f509224510 Fix PR2667: add soft float support for sint_to_fp/uint_to_fp 
where the argument is an apint, or smaller than the minimum
size for which there is a libcall (i32). 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58994 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-10 17:36:26 +00:00
Duncan Sands
cff50d9e20 Tweak some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58993 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-10 17:31:56 +00:00