Commit Graph

7335 Commits

Author SHA1 Message Date
Evan Cheng fb05965d72 Eliminate some unused methods.
llvm-svn: 56108
2008-09-11 17:31:47 +00:00
Evan Cheng f66e1120c6 Change getSubReg semantics. It now returns zero if the specified register doesn't have a subreg of the specified index.
llvm-svn: 56099
2008-09-11 06:25:25 +00:00
Dale Johannesen 58d084c05b The version of AtomicSDNode::AtomicSDNode used (only) for
cmp-and-swap reversed the Cmp and Swap arguments; comments
make it clear this is unintentional.  Unfortunately, the
x86 BE had a compensating reversal, which is removed here.
PPC is OK.

From inspection of the Alpha code I think it is OK, but
if somebody has that platform please check it out.  I
cannot test on that platform.

llvm-svn: 56091
2008-09-11 03:12:59 +00:00
Dan Gohman 39d82f902a Add X86FastISel support for static allocas, and refences
to static allocas. As part of this change, refactor the
address mode code for laods and stores.

llvm-svn: 56066
2008-09-10 20:11:02 +00:00
Dale Johannesen abb1e7770b Move the uglier parts of deciding not to emit a
UsedDirective for some symbols in llvm.used into
Darwin-specific code.  I've decided LessPrivateGlobal
is potentially a useful abstraction and left it in
the target-independent area, with improved comment.

llvm-svn: 56024
2008-09-09 22:29:13 +00:00
Anton Korobeynikov 1a1140429e Make safer variant of alias resolution routine to be default
llvm-svn: 56005
2008-09-09 20:05:04 +00:00
Anton Korobeynikov ac2c655808 Fix incorrect linker behaviour: we shouldn't resolve weak aliases.
llvm-svn: 55997
2008-09-09 18:23:48 +00:00
Gabor Greif ea79c3e7a0 fit in 80 cols, minor tweaks
llvm-svn: 55992
2008-09-09 17:52:13 +00:00
Evan Cheng 1e97901388 Fix a constant lowering bug. Now we can do load and store instructions with funky getelementptr embedded in the address operand.
llvm-svn: 55975
2008-09-09 01:26:59 +00:00
Dale Johannesen f080225490 Fix logic for not emitting no-dead-strip for some
objects in llvm.used (thanks Anton).  Makes visible
the magic 'l' prefix for symbols on Darwin which are
to be passed through the assembler, then removed at
linktime (previously all references to this had been
hidden in the ObjC FE code, oh well).

llvm-svn: 55973
2008-09-09 01:21:22 +00:00
Dan Gohman c579d978a3 Extend the vcmp/fcmp LLVM IR instructions to take vectors as arguments
and, if so, to return a vector of boolean as a result;

Extend the select LLVM IR instruction to allow you to specify a result
type which is a vector of boolean, in which case the result will be an
element-wise selection instead of choosing one vector or the other; and

Update LangRef.html to describe these changes.

This patch was contributed by Preston Gurd!

llvm-svn: 55969
2008-09-09 01:02:47 +00:00
Anton Korobeynikov 2fd24e7713 Reapply 55899: First draft of EH support on x86/64-linux
Now with fix, which prevents subtle codegen bug to trigger on darwin.
No fix for bug though, it's still there.

llvm-svn: 55955
2008-09-08 21:12:47 +00:00
Bill Wendling 6fe5fe4209 Accidental commit of partial 'stack canaries' code
llvm-svn: 55937
2008-09-08 18:12:00 +00:00
Bill Wendling 99b83712f3 Reverting r55898 to r55909. One of these patches was causing an ICE during the full bootstrap on Darwin:
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/bin/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/lib/
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/include
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/sys-include
-O2  -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-isystem ./include  -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2
-D__GCC_FLOAT_NOT_NEEDED  -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
-DSHARED -m64 -DL_negdi2 -c ../../llvm-gcc.src/gcc/libgcc2.c -o
libgcc/x86_64/_negdi2_s.o
Assertion failed: (TargetRegisterInfo::isVirtualRegister(regA) &&
TargetRegisterInfo::isVirtualRegister(regB) && "cannot update physical
register live information"), function runOnMachineFunction, file
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/lib/CodeGen/TwoAddressInstructionPass.cpp,
line 311.
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/bin/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/lib/
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/include
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/sys-include
-O2  -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-isystem ./include  -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2
-D__GCC_FLOAT_NOT_NEEDED  -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
-DSHARED -m64 -DL_lshrdi3 -c ../../llvm-gcc.src/gcc/libgcc2.c -o
libgcc/x86_64/_lshrdi3_s.o
../../llvm-gcc.src/gcc/unwind-dw2.c:1527: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.
{standard input}:unknown:Undefined local symbol LBB21_11
{standard input}:unknown:Undefined local symbol LBB21_12
{standard input}:unknown:Undefined local symbol LBB21_13
{standard input}:unknown:Undefined local symbol LBB21_8

llvm-svn: 55928
2008-09-08 17:59:12 +00:00
Anton Korobeynikov 82b9540046 First draft of EH support on x86/64-linux
llvm-svn: 55899
2008-09-08 14:21:53 +00:00
Duncan Sands 46911f1271 Reapply 55859. This doesn't change anything as
long as the callgraph is correct.  It checks
for wrong callgraphs more strictly.

llvm-svn: 55894
2008-09-08 11:05:51 +00:00
Evan Cheng 615739b991 - Doh. Pass vector by value is bad.
- Add a AnalyzeCallResult specialized for calls which produce a single value. This is used by fastisel.

llvm-svn: 55879
2008-09-07 09:02:18 +00:00
Duncan Sands 95c2a7848a When PruneEH turned an invoke into an ordinary
call (thus changing the call site) it didn't
inform the callgraph about this.  But the
call site does matter - as shown by the testcase,
the callgraph become invalid after the inliner
ran (with an edge between two functions simply
missing), resulting in wrong deductions by
GlobalsModRef.

llvm-svn: 55872
2008-09-06 17:19:29 +00:00
Owen Anderson 1dd2e40521 Revert r55859. This is breaking the build in the abscence of its companion commit.
llvm-svn: 55865
2008-09-05 23:36:01 +00:00
Dale Johannesen 23a37099b2 Mark math lib intrinsics readonly, on the grounds
that they read the rounding mode.  This is conservatively
correct, which they weren't before.  We can do more
optimization on these if we actually model the rounding
mode.

llvm-svn: 55860
2008-09-05 21:49:30 +00:00
Duncan Sands 9e23602849 Delete the removeCallEdgeTo callgraph method,
because it does not maintain a correct list
of callsites.  I discovered (see following
commit) that the inliner will create a wrong
callgraph if it is fed a callgraph with
correct edges but incorrect callsites.  These
were created by Prune-EH, and while it wasn't
done via removeCallEdgeTo, it could have been
done via removeCallEdgeTo, which is an accident
waiting to happen.  Use removeCallEdgeFor
instead.

llvm-svn: 55859
2008-09-05 21:43:04 +00:00
Owen Anderson ffcc884c77 Rename method.
llvm-svn: 55853
2008-09-05 20:49:33 +00:00
Dan Gohman fcf545690c FastISel support for ConstantExprs.
llvm-svn: 55843
2008-09-05 18:18:20 +00:00
Evan Cheng 6b8fae1777 Add a variant of AnalyzeCallOperands that can be used by fast isel.
llvm-svn: 55838
2008-09-05 16:59:26 +00:00
Duncan Sands 9f4b4a5901 Strip trailing whitespace.
llvm-svn: 55834
2008-09-05 12:31:56 +00:00
Owen Anderson 50288e3c99 Add initial support for selecting constant materializations that require constant
pool loads on X86 in fast isel.  This isn't actually used yet.

llvm-svn: 55814
2008-09-05 00:06:23 +00:00
Dan Gohman a79db30d28 Tidy up several unbeseeming casts from pointer to intptr_t.
llvm-svn: 55779
2008-09-04 17:05:41 +00:00
Dale Johannesen da2d80688b Add intrinsics for log, log2, log10, exp, exp2.
No functional change (and no FE change to generate them).

llvm-svn: 55753
2008-09-04 00:47:13 +00:00
Dan Gohman e039d5580e Do trivial local CSE for constants and other non-Instruction values
in FastISel.

llvm-svn: 55748
2008-09-03 23:32:19 +00:00
Dan Gohman 7bda51f5a4 Create HandlePHINodesInSuccessorBlocksFast, a version of
HandlePHINodesInSuccessorBlocks that works FastISel-style. This
allows PHI nodes to be updated correctly while using FastISel.

This also involves some code reorganization; ValueMap and
MBBMap are now members of the FastISel class, so they needn't
be passed around explicitly anymore. Also, SelectInstructions
is changed to SelectInstruction, and only does one instruction
at a time.

llvm-svn: 55746
2008-09-03 23:12:08 +00:00
Andrew Lenharth 9fed8f5b9c Initial version of a Partial Specialization IPO pass. It triggers a couple hundred times on 176.gcc. I don't know the performance impact yet, the heuristic is quite simple still.
llvm-svn: 55734
2008-09-03 21:00:28 +00:00
Dale Johannesen 5c1ff11fc3 Do not emit a UsedDirective for things in the llvm.used
list that have internal linkage; the linker doesn't need
or want this.  (These objects must still be preserved
at compile time, so just removing them from the llvm.used
list doesn't work.)  Should affect only Darwin.

llvm-svn: 55722
2008-09-03 20:34:58 +00:00
Devang Patel f58f96f810 Add missing decls.
llvm-svn: 55719
2008-09-03 20:24:05 +00:00
Dan Gohman 575fad337c Split the SelectionDAG-building code, including the FunctionLoweringInfo
and SelectionDAGLowering classes, out of SelectionDAGISel.cpp and put
it in a separate file, SelectionDAGBuild.cpp.

llvm-svn: 55701
2008-09-03 16:12:24 +00:00
Evan Cheng fa67546ef9 Make UpdateValueMap, createResultReg, etc. protected instead of private so they can used by target hooks.
llvm-svn: 55691
2008-09-03 06:43:10 +00:00
Devang Patel 7e59270272 s/FP_AlwaysInline/FN_NOTE_AlwaysInline/g
llvm-svn: 55676
2008-09-02 22:43:57 +00:00
Devang Patel 9989ddeb15 Getter and setter for function notes.
llvm-svn: 55638
2008-09-02 18:33:55 +00:00
Nuno Lopes 114a582019 plug memleak: destroy internal buffer
llvm-svn: 55632
2008-09-02 12:06:08 +00:00
Duncan Sands 130d9efec3 Add a small pass that sets the readnone/readonly
attributes on functions, based on the result of
alias analysis.  It's not hardwired to use
GlobalsModRef even though this is the only (AFAIK)
alias analysis that results in this pass actually
doing something.  Enable as follows:
  opt ... -globalsmodref-aa -markmodref ...
Advantages of this pass: (1) records the result
of globalsmodref in the bitcode, meaning it is
available for use by later passes (currently
the pass manager isn't smart enough to magically
make an advanced alias analysis available to all
later passes), which may expose more optimization
opportunities; (2) hopefully speeds up compilation
when code is optimized twice, for example when a
file is compiled to bitcode, then later LTO is done
on it: marking functions readonly/readnone when
producing the initial bitcode should speed up alias
analysis during LTO; (3) good for discovering that
globalsmodref doesn't work very well :)
Not currently turned on by default.

llvm-svn: 55604
2008-09-01 11:40:11 +00:00
Gordon Henriksen eeb6537abb PR2731: C and Ocaml bindings for setTailCall and isTailCall.
Based on patch by Giorgos Korfiatis.

llvm-svn: 55570
2008-08-30 16:34:54 +00:00
Gabor Greif a719239719 fix some 80-col violations
llvm-svn: 55565
2008-08-30 10:09:02 +00:00
Owen Anderson 6f0c51d9da Fix an issue where a use might be selected before a def, and then we didn't respect the pre-chosen vreg
assignment when selecting the def.  This is the naive solution to the problem: insert a copy to the pre-chosen
vreg.  Other solutions might be preferable, such as:
  1) Passing the dest reg into FastEmit_.  However, this would require the higher level code to know about reg classes, which they don't currently.
  2) Selecting blocks in reverse postorder.  This has some compile time cost for computing the order, and we'd need to measure its impact.

llvm-svn: 55555
2008-08-30 00:38:46 +00:00
Daniel Dunbar 278e909124 Add GlobalValue::{removeFromParent,eraseFromParent}
llvm-svn: 55529
2008-08-29 07:30:15 +00:00
Daniel Dunbar c70fa60b5e Add DenseMap::lookup:
/// lookup - Return the entry for the specified key, or a default
  /// constructed value if no such entry exists.

llvm-svn: 55523
2008-08-29 00:48:44 +00:00
Dan Gohman d58f3e36d0 Add a target callback for FastISel.
llvm-svn: 55512
2008-08-28 23:21:34 +00:00
Chris Lattner e6fe88391a rename destroy -> releaseMemory to properly hook into passmgr.
llvm-svn: 55508
2008-08-28 22:56:53 +00:00
Gabor Greif f304a7aa4d erect abstraction boundaries for accessing SDValue members, rename Val -> Node to reflect semantics
llvm-svn: 55504
2008-08-28 21:40:38 +00:00
Dan Gohman 360c57f683 Fix a FastISel bug where the instructions from lowering the arguments
were being emitted after the first instructions of the entry block.

llvm-svn: 55496
2008-08-28 20:28:56 +00:00
Owen Anderson 9cd1a5e530 FastEmitInst_extractsubreg doesn't need to be passed the register class. It can get it from MachineRegisterInfo instead.
llvm-svn: 55476
2008-08-28 17:47:37 +00:00
Dale Johannesen 41be0d4445 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.

llvm-svn: 55457
2008-08-28 02:44:49 +00:00
Dan Gohman 0e92132f2a Fix a missing #include. Patch by Andrew John Hughes.
llvm-svn: 55451
2008-08-28 00:20:07 +00:00
Dan Gohman e1a9a780a5 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.

llvm-svn: 55450
2008-08-27 23:52:12 +00:00
Owen Anderson 5f57bc2247 Add a helper method that will be used to support EXTRACT_SUBREG for selecting trunc's in fast-isel.
llvm-svn: 55439
2008-08-27 22:30:02 +00:00
Evan Cheng 57dc078570 Refactor isSafeToReMat out of 2addr pass.
llvm-svn: 55430
2008-08-27 20:33:50 +00:00
Dan Gohman b0b5a27438 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.

llvm-svn: 55426
2008-08-27 18:10:19 +00:00
Dan Gohman 539f74c87d Unbreak PseudoSourceValue::print. This fixes -print-machine-instrs
and various other things.

llvm-svn: 55415
2008-08-27 15:24:43 +00:00
Evan Cheng 183edfdd86 Add DebugInfoBuilder. Patch by Talin!
llvm-svn: 55409
2008-08-27 06:51:14 +00:00
Dan Gohman 5ca269e684 Basic FastISel support for floating-point constants.
llvm-svn: 55401
2008-08-27 01:09:54 +00:00
Owen Anderson ca1711a5b5 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.

llvm-svn: 55398
2008-08-26 23:46:32 +00:00
Dan Gohman abb6a0b773 Add a MachineInstrBuilder method for adding floating-point
immediate operands.

llvm-svn: 55397
2008-08-26 23:19:23 +00:00
Gabor Greif abfdf928d8 disallow direct access to SDValue::ResNo, provide a getter instead
llvm-svn: 55394
2008-08-26 22:36:50 +00:00
Dan Gohman 6fda9208d9 Refactor the bitcast code into its own function.
llvm-svn: 55387
2008-08-26 21:28:54 +00:00
Cedric Venet cf7154b2d6 - small bug corrected: incorrect iterator type.
- fix to please VS: add a return after an assert.

llvm-svn: 55380
2008-08-26 19:49:04 +00:00
Owen Anderson 27fb3dcbc7 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.

llvm-svn: 55375
2008-08-26 18:03:31 +00:00
Gabor Greif b4a173e92f fix doxygen comment
llvm-svn: 55372
2008-08-26 17:44:40 +00:00
Ted Kremenek 31707c0edf Grammar fix.
llvm-svn: 55371
2008-08-26 16:41:15 +00:00
Ted Kremenek 2e75d8aed0 Added "str()" method to raw_string_ostream.
str() mirrors the same method in std::ostringstream.
str() flushes the buffered stream contents to string and returns a reference to the string.

llvm-svn: 55370
2008-08-26 16:34:01 +00:00
Owen Anderson 8dd01ccdd8 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.

llvm-svn: 55345
2008-08-25 23:58:18 +00:00
Owen Anderson 32635dbfb2 Add support for fast isel of (integer) immediate materialization pattens, and use them to support
bitcast of constants in fast isel.

llvm-svn: 55325
2008-08-25 20:20:32 +00:00
Chris Lattner a078d83e17 simplify PseudoSourceValue printing a bit. Unnest all of PseudoSourceValue.cpp from the llvm namespace.
llvm-svn: 55293
2008-08-24 20:37:32 +00:00
Evan Cheng 72e7d91591 Print PseudoSourceValue.
llvm-svn: 55291
2008-08-24 18:51:20 +00:00
Chris Lattner 6a951c240b we should use 'class' for non-pod types instead of 'struct' to
make it easier to deal with the VC++ struct/class bug.

llvm-svn: 55290
2008-08-24 18:38:56 +00:00
Cedric Venet 0f7b5666a2 Updating VC++ project.
Adding one include file and correct one declaration from class to struct in order to make llvm compile on VC2005.

llvm-svn: 55279
2008-08-24 11:56:40 +00:00
Chris Lattner 838aff36dd get MachineConstantPool off std::ostream, onto raw_ostream. It would be
really nice if someone converted MachineFunction::print to raw_ostream.

llvm-svn: 55268
2008-08-23 22:53:13 +00:00
Chris Lattner e35929da7f remove dead method.
llvm-svn: 55266
2008-08-23 22:43:21 +00:00
Chris Lattner 205af9643d Add raw_stream adaptors that write into an std::string and SmallVector/SmallString.
llvm-svn: 55265
2008-08-23 22:43:04 +00:00
Chris Lattner 0c19df4871 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.

llvm-svn: 55263
2008-08-23 22:23:09 +00:00
Chris Lattner c112260159 Split format() out to its own file, add support for formatting
up to three values in one call.

llvm-svn: 55251
2008-08-23 19:48:00 +00:00
Chris Lattner 1312595153 conditionalize this to work on windows, untested but it should work
according to the intarnetz

llvm-svn: 55248
2008-08-23 19:27:03 +00:00
Chris Lattner 22b52c984a add a simple mechanism for formatted output. This gives raw_ostream's
all the power and risk of fprintf format strings.  Use them like this:

  OS << format("%10.4f", 42.0) << "\n" << format("%x", 42) << '\n';

llvm-svn: 55246
2008-08-23 19:23:10 +00:00
Chris Lattner 20abc419e5 Add a new trivial -inst-namer pass which makes it possible to diff the
before/after effects of a pass, crazy!

llvm-svn: 55230
2008-08-23 06:07:02 +00:00
Dan Gohman 48a3623591 Make MBBMap a DenseMap instead of a std::map.
llvm-svn: 55220
2008-08-23 02:44:46 +00:00
Dan Gohman eb0cee91f6 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.

llvm-svn: 55219
2008-08-23 02:25:05 +00:00
Dan Gohman ac37f9a9be Move SelectionDAG's constructor out of line.
llvm-svn: 55212
2008-08-23 00:50:30 +00:00
Dan Gohman 0e44e0d7a8 Add a clear() method to FoldingSet.
llvm-svn: 55210
2008-08-23 00:42:16 +00:00
Dan Gohman 2db3f8a095 Reapply r55191 and r55192.
llvm-svn: 55205
2008-08-22 21:28:19 +00:00
Bill Wendling fc4f64eed0 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

llvm-svn: 55200
2008-08-22 20:51:05 +00:00
Dan Gohman 87ff7058e7 Support non-fallthrough unconditional branches in FastISel.
llvm-svn: 55191
2008-08-22 19:21:41 +00:00
Owen Anderson f6c5308cab Fix typo.
llvm-svn: 55189
2008-08-22 18:26:07 +00:00
Dale Johannesen ed86f689cb Implement __sync_synchronize on ppc32. Patch by Gary Benson.
llvm-svn: 55186
2008-08-22 17:20:54 +00:00
Dan Gohman 54c8db58f5 Add an empty() member to FoldingSet.
llvm-svn: 55182
2008-08-22 16:14:23 +00:00
Dan Gohman 14714cb4fa 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.

llvm-svn: 55181
2008-08-22 16:07:55 +00:00
Nicolas Geoffray 09617418e8 Also overload for char, since the "char" type depends on the host.
llvm-svn: 55173
2008-08-22 08:44:47 +00:00
Owen Anderson 0060ef6500 Overload for both signed and unsigned char.
llvm-svn: 55171
2008-08-22 07:42:25 +00:00
Chris Lattner 5fc8ab6d18 consolidate DenseMapInfo implementations, and add one for std::pair.
Patch contributed by m-s.

llvm-svn: 55167
2008-08-22 05:08:25 +00:00
Dan Gohman 49e19e906f 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.

llvm-svn: 55156
2008-08-22 00:20:26 +00:00
Owen Anderson d2850538db Move non-trivial methods out of line to avoid code-size bloat.
llvm-svn: 55138
2008-08-21 20:58:52 +00:00
Dan Gohman 2af34bd309 Add libcalls for the new rounding opcodes.
llvm-svn: 55133
2008-08-21 18:38:14 +00:00
Dan Gohman da457c80f6 Fix a typo that Dale noticed.
llvm-svn: 55132
2008-08-21 18:13:12 +00:00
Dan Gohman c6337ac069 Add libm-oriented ISD opcodes for rounding operations.
llvm-svn: 55130
2008-08-21 17:55:02 +00:00