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9d5b416240
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2713 Commits

Author SHA1 Message Date
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
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
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
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
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
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