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5666 Commits

Author SHA1 Message Date
Owen Anderson
40a468f249 FastEmitInst_extractsubreg doesn't need to be passed the register class. It can get it from MachineRegisterInfo instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55476 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-28 17:47:37 +00:00
Dan Gohman
f641395435 Revert r55467; it causes regressions in UnitTests/Vector/divides, 
Benchmarks/sim/sim, and others on x86-64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55475 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-28 17:22:54 +00:00
Rafael Espindola
c748ffa4e4 Correctly resize the Parts array. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55471 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-28 14:24:45 +00:00
Evan Cheng
9242cb8b82 If a copy isn't coalesced, but its src is defined by trivial computation. Re-materialize the src to replace the copy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55467 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-28 07:53:51 +00:00
Dale Johannesen
e00a8a2a2e Split the ATOMIC NodeType's to include the size, e.g. 
ATOMIC_LOAD_ADD_{8,16,32,64} instead of ATOMIC_LOAD_ADD.
Increased the Hardcoded Constant OpActionsCapacity to match.
Large but boring; no functional change.

This is to support partial-word atomics on ppc; i8 is
not a valid type there, so by the time we get to lowering, the
ATOMIC_LOAD nodes looks the same whether the type was i8 or i32.
The information can be added to the AtomicSDNode, but that is the
largest SDNode; I don't fully understand the SDNode allocation,
but it is sensitive to the largest node size, so increasing
that must be bad.  This is the alternative.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55457 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-28 02:44:49 +00:00
Dan Gohman
7c3234c6be Reorganize the lifetimes of the major objects SelectionDAGISel 
works with.

SelectionDAG, FunctionLoweringInfo, and SelectionDAGLowering
objects now get created once per SelectionDAGISel instance, and
can be reused across blocks and across functions. Previously,
they were created and destroyed each time they were needed.

This reorganization simplifies the handling of PHI nodes, and
also SwitchCases, JumpTables, and BitTestBlocks. This
simplification has the side effect of fixing a bug in FastISel
where successor PHI nodes weren't being updated correctly.

This is also a step towards making the transition from FastISel
into and out of SelectionDAG faster, and also making
plain SelectionDAG faster on code with lots of little blocks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55450 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 23:52:12 +00:00
Owen Anderson
8970f00def Add a helper method that will be used to support EXTRACT_SUBREG for selecting trunc's in fast-isel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55439 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 22:30:02 +00:00
Evan Cheng
8763c1c544 Move the check whether it's worth remating to caller. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55434 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 20:58:54 +00:00
Dan Gohman
a318dabc0e Fix FastISel's bitcast code for the case where getRegForValue fails. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55431 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 20:41:38 +00:00
Evan Cheng
df3b99381f Refactor isSafeToReMat out of 2addr pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55430 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 20:33:50 +00:00
Owen Anderson
6336b70541 Use TargetLowering to get the types in fast isel, which handles pointer types correctly for our purposes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55428 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 18:58:30 +00:00
Dan Gohman
151ed61a2f Don't check TLI.getOperationAction. The FastISel way is to 
just try to do the action and let the tablegen-generated code
determine if there is target-support for an operation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55427 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 18:15:05 +00:00
Dan Gohman
ad368ac2b5 Add a new FastISel method, getRegForValue, which takes care of 
the details of materializing constants and other values into
registers, and make use of it in several places.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55426 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 18:10:19 +00:00
Dan Gohman
96a9999d79 Add a comment about the current floating-point constant code in FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55425 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 18:01:42 +00:00
Dan Gohman
e5a8dc5cc4 Optimize ScheduleDAGRRList's topological sort to use one pass instead 
of two, and to not need a scratch std::vector. Also, compute the ordering
immediately in the result array, instead of in another scratch std::vector
that is copied to the result array.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55421 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 16:29:48 +00:00
Dan Gohman
3a09d891a4 Optimize ScheduleDAG's ComputeDepths and ComputeHeights to not need 
a scratch std::vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55420 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 16:27:25 +00:00
Dan Gohman
a8b8332e81 Remove the std::ostream form of PseudoSourceValue's print, 
which isn't needed anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55419 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 16:19:44 +00:00
Dan Gohman
10df0fa73e Basic FastISel support for floating-point constants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55401 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 01:09:54 +00:00
Owen Anderson
96c5ea878c Fix handling of inttoptr and ptrtoint when unhandled operands are present. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55400 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 00:35:37 +00:00
Owen Anderson
9d5b416240 Add support for fast isel of inttoptr and ptrtoint in the cases where truncation is not needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55399 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 00:31:01 +00:00
Owen Anderson
d0533c9998 Factor out a large amoutn of the cast handling code in fast isel into helper methods. 
This simultaneously makes the code simpler and adds support for sext as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55398 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 23:46:32 +00:00
Owen Anderson
97e2568f46 Add support for fast isel of zext. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55396 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 23:14:49 +00:00
Gabor Greif
99a6cb92d1 disallow direct access to SDValue::ResNo, provide a getter instead 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55394 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 22:36:50 +00:00
Owen Anderson
13269335a5 Add support for fptosi of constants in fast isel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55393 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 22:34:28 +00:00
Dan Gohman
3200d92947 Optimize SelectionDAG's topological sort to use one pass instead 
of two, and to not need a scratch std::vector. Also, use the
SelectionDAG's topological sort in LegalizeDAG instead of having
a separate implementation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55389 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 21:42:18 +00:00
Dan Gohman
763d89343b Refactor the bitcast code into its own function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55387 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 21:28:54 +00:00
Dan Gohman
80bc6e2243 Make FastISel use the correct argument type when casting GEP indices. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55384 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 20:57:08 +00:00
Dan Gohman
b71fea248f Don't select binary instructions with illegal types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55383 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 20:52:40 +00:00
Owen Anderson
a843b8d391 Add support for fast isel of sitofp, and remove some unnecessary and imprecise legality checks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55381 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 20:37:00 +00:00
Owen Anderson
77a218765a Use a combination of copyRegToReg and ISD::BIT_CONVERT when doing fast isel of bitcasts, 
allowing it to support the full range of conversions people might ask for in a correct manner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55378 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 18:51:24 +00:00
Owen Anderson
940f83e772 Make TargetInstrInfo::copyRegToReg return a bool indicating whether the copy requested 
was inserted or not.  This allows bitcast in fast isel to properly handle the case
where an appropriate reg-to-reg copy is not available.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55375 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 18:03:31 +00:00
Owen Anderson
46aa2f5aab Add support for fast isel of non-constant fptosi instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55373 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 17:44:42 +00:00
Chris Lattner
09c5d8baa2 typo fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55355 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 06:07:47 +00:00
Dan Gohman
1146728bfa Actually recycle SDNode allocations. SelectionDAG is using 
RecyclingAllocator, but this change is needed for the nodes
to actually be recycled. This cuts SelectionDAG's memory
usage high-water-mark in half in some cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55351 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 01:44:34 +00:00
Owen Anderson
0f84e4e310 Add a RetVT parameter to emitted FastISel methods, so that we will be able to pass the desired return 
type down.  This is not currently used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55345 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-25 23:58:18 +00:00
Evan Cheng
b41aec5476 Unbreak build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55342 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-25 22:20:39 +00:00
Owen Anderson
d894f1d274 Expand bitcast support in fast isel to support bitcasts of non-constant values by emitting reg-reg copies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55340 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-25 21:32:34 +00:00
Owen Anderson
6d0c25ec3a Add support for fast isel of (integer) immediate materialization pattens, and use them to support 
bitcast of constants in fast isel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55325 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-25 20:20:32 +00:00
Chris Lattner
edfb72c628 simplify PseudoSourceValue printing a bit. Unnest all of PseudoSourceValue.cpp from the llvm namespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55293 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-24 20:37:32 +00:00
Evan Cheng
40ab164d3a Print PseudoSourceValue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55291 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-24 18:51:20 +00:00
Chris Lattner
c56711c212 make sure to flush the stream after dumping, to make sure it goes out immediately. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55288 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-24 18:28:30 +00:00
Chris Lattner
62ca32540f get MachineConstantPool off std::ostream, onto raw_ostream. It would be 
really nice if someone converted MachineFunction::print to raw_ostream.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55268 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-23 22:53:13 +00:00
Chris Lattner
944fac71e0 Switch the asmprinter (.ll) and all the stuff it requires over to 
use raw_ostream instead of std::ostream.  Among other goodness,
this speeds up llvm-dis of kc++ with a release build from 0.85s
to 0.49s (88% faster).

Other interesting changes:
 1) This makes Value::print be non-virtual.
 2) AP[S]Int and ConstantRange can no longer print to ostream directly, 
    use raw_ostream instead.
 3) This fixes a bug in raw_os_ostream where it didn't flush itself 
    when destroyed.
 4) This adds a new SDNode::print method, instead of only allowing "dump".


A lot of APIs have both std::ostream and raw_ostream versions, it would
be useful to go through and systematically anihilate the std::ostream 
versions.

This passes dejagnu, but there may be minor fallout, plz let me know if
so and I'll fix it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55263 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-23 22:23:09 +00:00
Dan Gohman
6ecf50908c Make MBBMap a DenseMap instead of a std::map. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55220 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-23 02:44:46 +00:00
Dan Gohman
f350b277f3 Move the point at which FastISel taps into the SelectionDAGISel 
process up to a higher level. This allows FastISel to leverage
more of SelectionDAGISel's infastructure, such as updating Machine
PHI nodes.

Also, implement transitioning from SDISel back to FastISel in
the middle of a block, so it's now possible to go back and
forth. This allows FastISel to hand individual CallInsts and other
complicated things off to SDISel to handle, while handling the rest
of the block itself.

To help support this, reorganize the SelectionDAG class so that it
is allocated once and reused throughout a function, instead of
being completely reallocated for each block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55219 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-23 02:25:05 +00:00
Dan Gohman
6679906d97 Avoid creating shift-by-zero SDNodes in the common case of 
i8* getelementptr. DAGCombine eliminates these, but this is
a fairly common case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55214 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-23 01:06:51 +00:00
Dan Gohman
6f17966a80 Move SelectionDAG's constructor out of line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55212 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-23 00:50:30 +00:00
Dan Gohman
3c8f36fd03 Reapply r55191 and r55192. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55205 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 21:28:19 +00:00
Bill Wendling
449416deb6 Reverting r55190, r55191, and r55192. They broke the build with this error message: 
{standard input}:17:bad register name `%sil'
make[4]: *** [libgcc/./_addvsi3.o] Error 1
make[4]: *** Waiting for unfinished jobs....
{standard input}:23:bad register name `%dil'
{standard input}:28:bad register name `%dil'
make[4]: *** [libgcc/./_addvdi3.o] Error 1
{standard input}:18:bad register name `%sil'
make[4]: *** [libgcc/./_subvsi3.o] Error 1



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55200 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 20:51:05 +00:00
Dan Gohman
5ed3cbb753 Fix the InsertBranch call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55192 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 19:26:10 +00:00
Dan Gohman
e0182ec0e4 Support non-fallthrough unconditional branches in FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55191 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 19:21:41 +00:00
Dan Gohman
3b7753be2e Add FastISel support for PHINodes. Machine PHI nodes 
are not yet updated properly, but that's a separate
task.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55187 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 17:37:48 +00:00
Dan Gohman
1501cdbf63 Fix SmallVector's size calculation so that a size of 0 is 
handled correctly, and change a few SmallVector uses to use
size 0 to more clearly reflect their intent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55181 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 16:07:55 +00:00
Chris Lattner
2dba6a1bdb consolidate DenseMapInfo implementations, and add one for std::pair. 
Patch contributed by m-s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55167 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 05:08:25 +00:00
Dan Gohman
22bb31103d Factor out the predicate check code from DAGISelEmitter.cpp 
and use it in FastISelEmitter.cpp, and make FastISel
subtarget aware. Among other things, this lets it work
properly on x86 targets that don't have SSE, where it
successfully selects x87 instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55156 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 00:20:26 +00:00
Bill Wendling
a6211d9e83 Remove tabs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55154 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 00:04:26 +00:00
Owen Anderson
c8d3a62092 Remove unneeded #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55134 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 19:51:25 +00:00
Dan Gohman
2bb1e3eede Add libcalls for the new rounding opcodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55133 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 18:38:14 +00:00
Dan Gohman
509e84fa71 Add libm-oriented ISD opcodes for rounding operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55130 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 17:55:02 +00:00
Dan Gohman
f93cf79505 Have FastISel skip the multiply by 1 for getelementptr on i8*. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55129 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 17:37:05 +00:00
Dan Gohman
7a0e6593d0 MVT::getMVT uses iPTR for pointer types, while we need the actual 
intptr_t type in this case. FastISel can now select simple
getelementptr instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55125 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 17:25:26 +00:00
Dan Gohman
ca84121596 Elements in DeadNodeSet are checked for use_empty() before they 
are actually deleted, so it's not necessary to remove re-used
nodes from the set.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55123 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 16:24:54 +00:00
Dan Gohman
d5fe57d2f9 Basic fast-isel support for instructions with constant int operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55099 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 01:41:07 +00:00
Evan Cheng
2076aa800e Type of first GEP operand is always the same as the target pointer type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55097 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 01:19:11 +00:00
Owen Anderson
cb37188323 Use raw_ostream throughout the AsmPrinter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55092 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 00:14:44 +00:00
Dan Gohman
fd903944de Fix unused variable warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55089 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 23:53:10 +00:00
Evan Cheng
83785c8096 First cut, un-optimized (and untested) fast isel lowering of GetElementPtrInst. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55085 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 22:45:34 +00:00
Dan Gohman
f990b571c5 Simplify the BuildMI calls even more. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55077 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 21:10:53 +00:00
Dan Gohman
bb466331e7 Simplify FastISel's constructor argument list, make the FastISel 
class hold a MachineRegisterInfo member, and make the
MachineBasicBlock be passed in to SelectInstructions rather
than the FastISel constructor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55076 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 21:05:57 +00:00
Dan Gohman
2385852b5b Dump the instruction that foiled ISel even when -debug is not used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55075 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 20:47:32 +00:00
Bill Wendling
fb018d0433 Don't hoist instructions that define a physical register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55074 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 20:32:05 +00:00
Dan Gohman
cb34cd7b5e Make more use of the BuildMI API. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55072 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 18:16:32 +00:00
Dan Gohman
4cbe0662ab Minor code reorganization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55071 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 18:10:48 +00:00
Dan Gohman
77ad79689d Minor whitespace cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55070 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 18:09:38 +00:00
Dan Gohman
b7864a9e23 Fix 80 column violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55069 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 18:09:02 +00:00
Evan Cheng
d420789301 Kill off SimpleBBISel, it's replaced by FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55067 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 17:50:32 +00:00
Dan Gohman
a267651b7e Disable DAGCombine's alignment inference in "fast" codegen mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55059 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 16:30:28 +00:00
Dan Gohman
b8d2f550b8 Change the FoldingSetNodeID usage for objects which carry 
alignment and volatility information, such as loads and
stores, to reduce the number of integer values added to
the FoldingSetNodeID.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55058 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 15:58:01 +00:00
Dan Gohman
c53ec49885 Use BitVector instead of std::vector<unsigned char>. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55054 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 14:58:41 +00:00
Dan Gohman
7a30bc4e7c Avoid an empty-if-body warning in release builds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55050 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 14:00:56 +00:00
Dan Gohman
08293f6b6c Fix indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55049 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 13:50:12 +00:00
Dan Gohman
e6798b757a Fix FastISel to recognize that the last block in the function does 
not have a fall-through successor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55033 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 01:17:01 +00:00
Dan Gohman
cc8430f742 Fix a leak in the FastISel code that Chris pointed out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55031 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 00:56:17 +00:00
Dan Gohman
3e697cfa97 Add support for running SelectionDAG if FastISel fails. This is under 
a command-line option, so that the default behavior is an abort, which
is useful for exposing code that isn't supported yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55028 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 00:47:54 +00:00
Dan Gohman
a7f2dff98e Fix FastISel to recognize unhandled operands, such as constants 
that aren't available as virtual registers (for now).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55026 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 00:35:17 +00:00
Dan Gohman
8014e86580 Add FastISel support for floating-point operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55021 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 00:23:20 +00:00
Dan Gohman
bdedd44773 Add FastISel support for several more binary operators. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55020 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 00:11:48 +00:00
Dan Gohman
78eca170e9 Add code to call FastISel, and a command-line option to enable it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55015 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 22:33:34 +00:00
Dan Gohman
6f2766d597 Support unconditional fall-through branches in FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55014 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 22:31:46 +00:00
Owen Anderson
a41e47afc1 Allow the fast-path spilling code to attempt folding, but still leaving out remat and splitting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55012 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 22:12:11 +00:00
Dan Gohman
8133a52eb5 Use the BuildMI overload that sets up a destination register 
instead of the one that doesn't and then adding it manually.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55006 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 20:46:54 +00:00
Dan Gohman
32155acb8a Handle the case where target-specific fastisel code doesn't have 
a desired opcode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55005 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 20:43:22 +00:00
Owen Anderson
712c9f0690 The fast-path still needs to set kill markers and spill/restore points as appropriate. 
With this patch, all of MultiSource/Applications and all of SPEC2000/2006 pass with
the SimpleSpiller and this fast-path enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55000 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 20:09:52 +00:00
Gordon Henriksen
3b26693d33 Delete a dead field. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54995 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 17:09:26 +00:00
Gordon Henriksen
fcbcfaa95f [PR2327] Leverage TargetRegisterInfo to compute frame offsets for GC metadata. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54994 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 17:06:35 +00:00
Chris Lattner
65a7bd8b8e don't use the result of WriteTypeSymbolic or WriteAsOperand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54978 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 04:44:30 +00:00
Owen Anderson
724651ab6e Make SimpleSpiller respect subregister indices. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54968 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 01:05:33 +00:00
Owen Anderson
ae339babb2 Add a flag to enable the fast spilling path. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54958 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 00:17:30 +00:00
Owen Anderson
1719731d3d Fix a few more bugs: 
1) Assign stack slots to new temporaries.
  2) Don't insert an interval into the return vector more than once.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54956 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-18 23:41:04 +00:00
Owen Anderson
9a03293145 Fix several bugs in the new fast-path: 
1) Remove an incorrect assertion.
  2) Set the stack slot weight properly.
  3) Resize the VirtRegMap when needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54949 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-18 21:20:32 +00:00