Commit Graph

2253 Commits

Author SHA1 Message Date
Evan Cheng 0346c04f39 Fix 80 col violations.
llvm-svn: 62518
2009-01-19 18:57:29 +00:00
Evan Cheng 6c02498215 Handle ISD::DECLARE with PIC relocation model.
llvm-svn: 62516
2009-01-19 18:31:51 +00:00
Evan Cheng 41e9f6a854 Fix PPC ISD::Declare isel and eliminate the need for PPCTargetLowering::LowerGlobalAddress to check if isVerifiedDebugInfoDesc() is true. Given the recent changes, it would falsely return true for a lot of GlobalAddressSDNode's.
llvm-svn: 62373
2009-01-16 22:57:32 +00:00
Dan Gohman ceac7c34f1 Initial hazard recognizer support in post-pass scheduling. This includes
a new toy hazard recognizier heuristic which attempts to direct the
scheduler to avoid clumping large groups of loads or stores too densely.

llvm-svn: 62291
2009-01-16 01:33:36 +00:00
Dan Gohman 7e105f0b12 Generalize the HazardRecognizer interface so that it can be used
to support MachineInstr-based scheduling in addition to
SDNode-based scheduling.

llvm-svn: 62284
2009-01-15 22:18:12 +00:00
Rafael Espindola 6de96a1b5d Add the private linkage.
llvm-svn: 62279
2009-01-15 20:18:42 +00:00
Dan Gohman 619ef48a52 Move a few containers out of ScheduleDAGInstrs::BuildSchedGraph
and into the ScheduleDAGInstrs class, so that they don't get
destructed and re-constructed for each block. This fixes a
compile-time hot spot in the post-pass scheduler.

To help facilitate this, tidy and do some minor reorganization
in the scheduler constructor functions.

llvm-svn: 62275
2009-01-15 19:20:50 +00:00
Dan Gohman 02b93136e9 Const-qualify getPreIndexedAddressParts and friends.
llvm-svn: 62259
2009-01-15 16:29:45 +00:00
Duncan Sands dc020f9c3c Rename getABITypeSize to getTypePaddedSize, as
suggested by Chris.

llvm-svn: 62099
2009-01-12 20:38:59 +00:00
Misha Brukman 5cbf223916 Removed trailing whitespace from Makefiles.
llvm-svn: 61991
2009-01-09 16:44:42 +00:00
Devang Patel f646668799 Convert DwarfWriter into a pass.
Now Users request DwarfWriter through getAnalysisUsage() instead of creating an instance of DwarfWriter object directly.

llvm-svn: 61955
2009-01-08 23:40:34 +00:00
Dan Gohman 906152a20f Tidy up #includes, deleting a bunch of unnecessary #includes.
llvm-svn: 61715
2009-01-05 17:59:02 +00:00
Duncan Sands 8feb694e8f Fix PR3274: when promoting the condition of a BRCOND node,
promote from i1 all the way up to the canonical SetCC type.
In order to discover an appropriate type to use, pass
MVT::Other to getSetCCResultType.  In order to be able to
do this, change getSetCCResultType to take a type as an
argument, not a value (this is also more logical).

llvm-svn: 61542
2009-01-01 15:52:00 +00:00
Rafael Espindola 770b4b830a Fix bug 3202.
The EH_frame and .eh symbols are now private, except for darwin9 and earlier.
The patch also fixes the definition of PrivateGlobalPrefix on pcc linux.

llvm-svn: 61242
2008-12-19 10:55:56 +00:00
Evan Cheng 2a03c7e977 Re-did 60519. It turns out Darwin's handling of hidden visibility symbols are a bit more complicate than I expected. Both declarations and weak definitions still need a stub indirection. However, the stubs are in data section and they contain the addresses of the actual symbols.
llvm-svn: 60571
2008-12-05 01:06:39 +00:00
Bill Wendling 6949f6135b Temporarily revert r60519. It was causing a bootstrap failure:
/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-darwin9.5.0/bin/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -DHAVE_CONFIG_H -I. -I../../../llvm-gcc.src/libgomp -I. -I../../../llvm-gcc.src/libgomp/config/posix -I../../../llvm-gcc.src/libgomp -Wall -pthread -Werror -O2 -g -O2 -MT barrier.lo -MD -MP -MF .deps/barrier.Tpo -c ../../../llvm-gcc.src/libgomp/barrier.c  -fno-common -DPIC -o .libs/barrier.o
checking for sys/file.h... /var/folders/zG/zGE-ZJOGFiGjv0B5cs5oYE+++TM/-Tmp-//cc34Jg5P.s:13:non-relocatable subtraction expression, "_gomp_tls_key" minus "L1$pb"
/var/folders/zG/zGE-ZJOGFiGjv0B5cs5oYE+++TM/-Tmp-//cc34Jg5P.s:13:symbol: "_gomp_tls_key" can't be undefined in a subtraction expression
make[4]: *** [barrier.lo] Error 1
make[4]: *** Waiting for unfinished jobs....
/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-darwin9.5.0/bin/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -DHAVE_CONFIG_H -I. -I../../../llvm-gcc.src/libgomp -I. -I../../../llvm-gcc.src/libgomp/config/posix -I../../../llvm-gcc.src/libgomp -Wall -pthread -Werror -O2 -g -O2 -MT alloc.lo -MD -MP -MF .deps/alloc.Tpo -c ../../../llvm-gcc.src/libgomp/alloc.c -o alloc.o >/dev/null 2>&1
yes
checking for sys/param.h... make[3]: *** [all-recursive] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all-target-libgomp] Error 2
make[1]: *** Waiting for unfinished jobs....

llvm-svn: 60527
2008-12-04 04:07:00 +00:00
Evan Cheng 011c4fa8a1 Visibility hidden GVs do not require extra load of symbol address from the GOT or non-lazy-ptr.
llvm-svn: 60519
2008-12-04 01:56:50 +00:00
Dale Johannesen 5d84f685a8 A step towards geting linux ppc to work (see PR 3099)
llvm-svn: 60497
2008-12-03 19:33:10 +00:00
Dan Gohman 3f86b51333 Split foldMemoryOperand into public non-virtual and protected virtual
parts, and add target-independent code to add/preserve
MachineMemOperands.

llvm-svn: 60488
2008-12-03 18:43:12 +00:00
Dan Gohman 69cc2cbbff Rename isSimpleLoad to canFoldAsLoad, to better reflect its meaning.
llvm-svn: 60487
2008-12-03 18:15:48 +00:00
Rafael Espindola cda011b5ad Fix bug 3140.
Print a single parameter .file directive if we have an ELF target.

llvm-svn: 60480
2008-12-03 11:01:37 +00:00
Dan Gohman ae3ba45eb2 Add a sanity-check to tablegen to catch the case where isSimpleLoad
is set but mayLoad is not set. Fix all the problems this turned up.

Change code to not use isSimpleLoad instead of mayLoad unless it
really wants isSimpleLoad.

llvm-svn: 60459
2008-12-03 02:30:17 +00:00
Duncan Sands 3d960941b1 There are no longer any places that require a
MERGE_VALUES node with only one operand, so get
rid of special code that only existed to handle
that possibility.

llvm-svn: 60349
2008-12-01 11:41:29 +00:00
Duncan Sands 6ed40141f7 Change the interface to the type legalization method
ReplaceNodeResults: rather than returning a node which
must have the same number of results as the original
node (which means mucking around with MERGE_VALUES,
and which is also easy to get wrong since SelectionDAG
folding may mean you don't get the node you expect),
return the results in a vector.

llvm-svn: 60348
2008-12-01 11:39:25 +00:00
Duncan Sands dc2dac181a If the type legalizer actually legalized anything
(this doesn't happen that often, since most code
does not use illegal types) then follow it by a
DAG combiner run that is allowed to generate
illegal operations but not illegal types.  I didn't
modify the target combiner code to distinguish like
this between illegal operations and illegal types,
so it will not produce illegal operations as well
as not producing illegal types.

llvm-svn: 59960
2008-11-24 14:53:14 +00:00
Matthijs Kooijman 75339657bd Fix comments.
llvm-svn: 59958
2008-11-24 11:44:00 +00:00
Evan Cheng 977e7be9d4 Move target independent td files from lib/Target/ to include/llvm/Target so they can be distributed along with the header files.
llvm-svn: 59953
2008-11-24 07:34:46 +00:00
Duncan Sands 8d6e2e13d5 Rename SetCCResultContents to BooleanContents. In
practice these booleans are mostly produced by SetCC,
however the concept is more general.

llvm-svn: 59911
2008-11-23 15:47:28 +00:00
Anton Korobeynikov bff4b37af5 Make a convenient helper for printing offsets.
llvm-svn: 59872
2008-11-22 16:15:34 +00:00
Dan Gohman 60cb69e665 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.

llvm-svn: 59676
2008-11-19 23:18:57 +00:00
Dan Gohman 0b2732598c Add more const qualifiers. This fixes build breakage from r59540.
llvm-svn: 59542
2008-11-18 19:49:32 +00:00
Dale Johannesen aae3a4f864 Move some former testcases (low-probability codegen
optimizations) into this wishlist.

llvm-svn: 59455
2008-11-17 18:56:34 +00:00
Oscar Fuentes ba4eb2a9db Adds extern "C" ints to the .cpp files that use RegisterTarget, as
well as 2 files that use "Registrator"s. These are to be used by the
MSVC builds, as the Win32 linker does not include libs that are
otherwise unreferenced, even if global constructors in the lib have
side-effects.

Patch by Scott Graham!

llvm-svn: 59378
2008-11-15 21:36:30 +00:00
Anton Korobeynikov 9833d8c369 Temporary revert my last commit: it seems it's triggering some subtle bug in backend
and breaks llvm-gcc

llvm-svn: 58926
2008-11-08 23:05:05 +00:00
Anton Korobeynikov 09f51d1fd4 Factor out offset printing code into generic AsmPrinter.
FIXME: it seems, that most of targets don't support
offsets wrt CPI/GlobalAddress', was it intentional?

llvm-svn: 58917
2008-11-08 17:21:38 +00:00
Evan Cheng b31a717527 Rename startFunctionStub to startGVStub since it's also used for GV non-lazy ptr.
llvm-svn: 58897
2008-11-08 08:02:53 +00:00
Dale Johannesen 160be0ffda Make FP tests requiring two compares work on PPC (PR 642).
This is Chris' patch from the PR, modified to realize that
SETUGT/SETULT occur legitimately with integers, plus
two fixes in LegalizeDAG to pass a valid result type into
LegalizeSetCC.  The argument of TLI.getSetCCResultType is
ignored on PPC, but I think I'm following usage elsewhere.

llvm-svn: 58871
2008-11-07 22:54:33 +00:00
Dan Gohman cb0df597e0 Flush the raw_ostream after emitting the assembly for a function.
This is a temporary fix for the -print-emitted-asm option, where
errs() is used as the stream, in the case where other code is
using stderr without using errs()' buffer. Hopefully soon we'll
fix errs() to be non-buffered instead. Patch by Preston Gurd.

llvm-svn: 58859
2008-11-07 19:49:17 +00:00
Dan Gohman 7a638a8c7e Reintroduce a comment that was removed with the AddToISelQueue
changes.

llvm-svn: 58760
2008-11-05 17:16:24 +00:00
Dan Gohman f14b77ebf1 Eliminate the ISel priority queue, which used the topological order for a
priority function. Instead, just iterate over the AllNodes list, which is
already in topological order. This eliminates a fair amount of bookkeeping,
and speeds up the isel phase by about 15% on many testcases.

The impact on most targets is that AddToISelQueue calls can be simply removed.

In the x86 target, there are two additional notable changes.

The rule-bending AND+SHIFT optimization in MatchAddress that creates new
pre-isel nodes during isel is now a little more verbose, but more robust.
Instead of either creating an invalid DAG or creating an invalid topological
sort, as it has historically done, it can now just insert the new nodes into
the node list at a position where they will be consistent with the topological
ordering.

Also, the address-matching code has logic that checked to see if a node was
"already selected". However, when a node is selected, it has all its uses
taken away via ReplaceAllUsesWith or equivalent, so it won't recieve any
further visits from MatchAddress. This code is now removed.

llvm-svn: 58748
2008-11-05 04:14:16 +00:00
Duncan Sands 1310574b0f Shift amounts should have type getShiftAmountTy
(i32 for PPC, not i8).  Correct this, and some
formatting while there.

llvm-svn: 58451
2008-10-30 19:28:32 +00:00
Dale Johannesen 98aa9d3e49 Add a RM pseudoreg for the rounding mode, which
allows ppcf128->int conversion to work with
DeadInstructionElimination.  This is now turned
off but RM is harmless.  It does not do a complete
job of modeling the rounding mode.

Revert marking MFCR as using all 7 CR subregisters;
while correct, this caused the problem in PR 2964,
plus the local RA crash noted in the comments.
This was needed to make DeadInstructionElimination,
but as we are not running that, it is backed out
for now.  Eventually it should go back in and the
other problems fixed where they're broken.

llvm-svn: 58391
2008-10-29 18:26:45 +00:00
Duncan Sands 4068a7f31e Fix darwin ppc llvm-gcc build breakage: intercept
ppcf128 to i32 conversion and expand it into a code
sequence like in LegalizeDAG.  This needs custom
ppc lowering of FP_ROUND_INREG, so turn that on and
make it work with LegalizeTypes.  Probably PPC should
simply custom lower the original conversion.

llvm-svn: 58329
2008-10-28 15:00:32 +00:00
David Greene ce2a938186 Have TableGen emit setSubgraphColor calls under control of a -gen-debug
flag.  Then in a debugger developers can set breakpoints at these calls
to see waht is about to be selected and what the resulting subgraph
looks like.  This really helps when debugging instruction selection.

llvm-svn: 58278
2008-10-27 21:56:29 +00:00
Dale Johannesen 71f361e758 Mark MFCR as reading all condition code registers.
Prevents some more overzealous deletions (mostly
in AltiVec code).

llvm-svn: 58121
2008-10-24 22:08:01 +00:00
Dale Johannesen 3863f8e725 Rewrite logic to figure out whether LR needs to
be saved/restored in the prolog/epilog.  We need
to do this iff something in the function stores
into it.

llvm-svn: 58116
2008-10-24 21:24:23 +00:00
Dale Johannesen e395d78657 Mark defs and uses of CTR and LR correctly.
Prevents DeadMachineInstructionElim from thinking
things like MTCTR are dead (fixes massive
testsuite breakage at -O0).

llvm-svn: 58043
2008-10-23 20:41:28 +00:00
Oscar Fuentes f3c03b02dc CMake: Turned some libraries into partially linked objects. Corrected
names of LLVMCore and ARMCodeGen.

llvm-svn: 57943
2008-10-22 02:51:53 +00:00
Dan Gohman c14e5227f0 Disable constant-offset folding for PowerPC, as the PowerPC target
isn't yet prepared for it.

llvm-svn: 57886
2008-10-21 03:41:46 +00:00
Dan Gohman e33afda4fa Trim #includes.
llvm-svn: 57649
2008-10-16 20:18:31 +00:00