Commit Graph

6141 Commits

Author SHA1 Message Date
Evan Cheng
24ac408ce8 Eliminate some unused variable compile time warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59952 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-24 07:09:49 +00:00
Bill Wendling
def27392c1 Add support for llvm.uadd.with.overflow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59926 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-24 01:38:29 +00:00
Duncan Sands
03228089d5 Rename SetCCResultContents to BooleanContents. In
practice these booleans are mostly produced by SetCC,
however the concept is more general.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59911 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-23 15:47:28 +00:00
Mon P Wang
6cce3dae90 Added check to avoid generating extract subvector beyond the end of the vector when normalizing vector shuffles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59900 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-23 04:35:05 +00:00
Anton Korobeynikov
7751ad92da Make a convenient helper for printing offsets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59872 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-22 16:15:34 +00:00
Bill Wendling
253174bf50 Cleanup of the [SU]ADDO type legalization code. Patch by Duncan!
"It simplifies the type legalization part a bit, and produces better code by
teaching SelectionDAG about the extra bits in an i8 SADDO/UADDO node.  In
essence, I spontaneously decided that on x86 this i8 boolean result would be
either 0 or 1, and on other platforms 0/1 or 0/-1, depending on whether the
platform likes it's boolean zero extended or sign extended."


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59864 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-22 07:24:01 +00:00
Bill Wendling
8ac0d4b4fb - Move conversion of [SU]ADDO from DAG combiner into legalizer.
- Add "promote integer type" stuff to the legalizer for these nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59847 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-22 00:22:52 +00:00
Devang Patel
59500c8f9a Silence unused variable warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59841 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 20:00:59 +00:00
Dan Gohman
37d8b3193d Correctly set the isCtrl flag for chain dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59837 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 19:17:25 +00:00
Dan Gohman
fc626b62b8 Update comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59836 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 19:16:58 +00:00
Dan Gohman
3ebd0eeaeb Update comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59834 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 19:10:41 +00:00
Chris Lattner
824b958e6f reapply Sanjiv's patch to genericize memcpy/memset/memmove to take an
arbitrary integer width for the count.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59823 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 16:42:48 +00:00
Bill Wendling
dc770929cb Revert r59802. It was breaking the build of llvm-gcc:
g++ -m32 -c -g -DIN_GCC -W -Wall -Wwrite-strings -Wmissing-format-attribute -fno-common -mdynamic-no-pic -DHAVE_CONFIG_H -Wno-unused -DTARGET_NAME=\"i386-apple-darwin9.5.0\" -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include -DENABLE_LLVM -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/../llvm.src/include  -D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS   -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include ../../llvm-gcc.src/gcc/llvm-types.cpp -o llvm-types.o
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemCpy(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1496: error: 'memcpy_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1496: error: 'memcpy_i64' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemMove(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1512: error: 'memmove_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1512: error: 'memmove_i64' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemSet(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1528: error: 'memset_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1528: error: 'memset_i64' is not a member of 'llvm::Intrinsic'
make[3]: *** [llvm-convert.o] Error 1
make[3]: *** Waiting for unfinished jobs....
rm fsf-funding.pod gcov.pod gfdl.pod cpp.pod gpl.pod gcc.pod
make[2]: *** [all-stage1-gcc] Error 2
make[1]: *** [stage1-bubble] Error 2
make: *** [all] Error 2



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59809 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 09:09:41 +00:00
Sanjiv Gupta
219ab405e6 Make mem[cpy,move,set] intrinsics overloaded.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59802 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 07:49:09 +00:00
Bill Wendling
137dccd5d8 Default to converting UADDO to the generic form that SADDO is converted to.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59801 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 07:44:30 +00:00
Mon P Wang
230e4faa19 Clean up normalization of shuffles
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59792 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 04:25:21 +00:00
Bill Wendling
ef37546f68 Combine the two add with overflow intrinsics lowerings. They differ only in DAG node type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59788 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 02:38:44 +00:00
Dan Gohman
f6b7a47d5d Set the isAntiDep flag in the MachineInstr scheduler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59787 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 02:38:21 +00:00
Bill Wendling
da4948ac8c Generate code for llvm.uadd.with.overflow intrinsic. No conversion support yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59786 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 02:33:36 +00:00
Dan Gohman
cddd428459 Add a flag to SDep for tracking which edges are anti-dependence edges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59785 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 02:27:52 +00:00
Bill Wendling
6c63f62729 Remove chains. Unnecessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59783 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 02:22:59 +00:00
Dan Gohman
98adea1149 Rename SDep's isSpecial to isArtificial, to make this field a little
less mysterious.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59782 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 02:18:56 +00:00
Bill Wendling
1c55a9c0cc 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59780 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 02:12:42 +00:00
Bill Wendling
7cdc3c8ad2 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.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59779 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 02:03:52 +00:00
Dan Gohman
787782f4ca Use ComputeLatency in the MachineInstr scheduler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59777 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 01:44:51 +00:00
Dan Gohman
f209c2cc30 Remove the CycleBound computation code from the ScheduleDAGRRList
schedulers. This doesn't have much immediate impact because
targets that use these schedulers by default don't yet provide
pipeline information.

This code also didn't have the benefit of register pressure
information. Also, removing it will avoid problems with list-burr
suddenly starting to do latency-oriented scheduling on x86 when we
start providing pipeline data, which would increase spilling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59775 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 01:30:54 +00:00
Dan Gohman
c8c2827993 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59761 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 00:12:10 +00:00
Bill Wendling
ea7b527aa5 Add UADDO and SADDO nodes. These will be used for determining an overflow
condition in an addition operation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59760 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 00:11:16 +00:00
Dan Gohman
47d1a214a7 Change these schedulers to not emit no-ops. It turns out that
the RR scheduler actually does look at latency values, but it
doesn't use a hazard recognizer so it has no way to know when
a no-op is needed, as opposed to just stalling and incrementing
the cycle count.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59759 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 00:10:42 +00:00
Dan Gohman
8eaf41de8a Treat mid-block labels the same as terminators when building the
MachineInstr scheduling DAG, meaning they implicitly depend on all
preceding defs. This fixes Benchmarks/Shootout-C++/except and
Regression/C++/EH/simple_rethrow in
  -relocation-model=pic -disable-post-RA-scheduler=false
mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59747 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20 19:58:35 +00:00
Dan Gohman
5ce0973f7f Add another machine-code printing pass when post-pass scheduling is run.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59746 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20 19:54:21 +00:00
Duncan Sands
810260bf6b Add some documentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59727 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20 10:34:43 +00:00
Bill Wendling
f0a2d0cb8f 80-column violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59718 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20 07:24:30 +00:00
Dan Gohman
57bebbbd12 Remove a remnant of list-burr's fast mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59702 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20 03:32:45 +00:00
Dan Gohman
117f3e9ee4 Factor out the SethiUllman numbering logic from the list-burr and
list-tdrr schedulers into a common base class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59701 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20 03:30:37 +00:00
Dan Gohman
9e76fea3ab Remove the "fast" form of the list-burr scheduler, and use the
dedicated "fast" scheduler in -fast mode instead, which is
faster. This speeds up llc -fast by a few percent on some
testcases -- the speedup only happens for code not handled by
fast-isel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59700 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20 03:11:19 +00:00
Dan Gohman
6be2ee431f Facter AddPseudoTwoAddrDeps and associated infrasructure out of
the list-burr scheduler so that it can be used by the list-tdrr
scheduler too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59698 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20 02:45:51 +00:00
Evan Cheng
d37c13cfd1 - 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59697 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20 02:32:35 +00:00
Dan Gohman
40362067de Add #include <climits> to get the definition of INT_MAX.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59692 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20 01:41:34 +00:00
Dan Gohman
a1e6d363e5 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59689 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20 01:26:25 +00:00
Dan Gohman
cdb260de83 Simplify this code a little. In the fast scheduler, CreateNewSUnit
and CreateClone don't add any extra value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59679 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 23:39:02 +00:00
Dan Gohman
343f0c0467 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59676 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 23:18:57 +00:00
Dan Gohman
7d1cd3f21d Move the code for printing a graph node label for an SUnit into
a virtual method of SelectionDAG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59667 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 22:09:45 +00:00
Dan Gohman
252ae9e8ae Convert SUnit's dump method into a print method and implement
dump in terms of it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59665 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 21:32:03 +00:00
Argyrios Kyrtzidis
3713c0ba62 Fix compilation error on MSVC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59629 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 12:56:21 +00:00
Owen Anderson
75fa96bb71 Add support for rematerialization in pre-alloc-splitting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59587 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 04:28:29 +00:00
Dan Gohman
c2f9062ea4 Rearrange code to reduce the nesting level. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59580 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 02:00:32 +00:00
Dan Gohman
06da2bc19f Fix debug printing of flagged SDNodes in SUnits so that they
print in the correct order.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59567 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 00:04:44 +00:00
Evan Cheng
3a5b020292 Make the same change to RegScavenger::backward.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59566 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 23:54:01 +00:00
Evan Cheng
63a431c670 We also need to keep the operand index for two address check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59562 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 22:56:19 +00:00