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Commit Graph

394 Commits

Author SHA1 Message Date
Chris Lattner
8e3badb9a7 give MCAsmInfo a 'has little endian' bit. This is unfortunate, but
I really want clients of the streamer to be able to say "emit this
64-bit integer" and have it get broken down right by the streamer.

I may change this in the future, we'll see how it works out.

llvm-svn: 93934
2010-01-19 22:42:28 +00:00
Bruno Cardoso Lopes
36445b07f0 Fix a bug introduced on r92564 where the name "Node" was already
in use by Mips.

llvm-svn: 93897
2010-01-19 19:57:07 +00:00
Bruno Cardoso Lopes
6d3b12a256 On pic function calls some arguments were marked dead and
the instruction to load those args removed. This fix PR6071

llvm-svn: 93880
2010-01-19 17:00:43 +00:00
Bruno Cardoso Lopes
a3fff69e88 load f64 +0.0 in a cleaner way. This fix part of PR5445
llvm-svn: 93876
2010-01-19 12:53:04 +00:00
Bruno Cardoso Lopes
46c69e2a0a Fix return registers for mips eabi
llvm-svn: 93875
2010-01-19 12:37:35 +00:00
Chris Lattner
377bd87849 Now that we have everything nicely factored (e.g. asmprinter is not
doing global variable classification anymore) and hookized, sink almost
all target targets global variable emission code into AsmPrinter and out
of each target.

Some notes:

1. PIC16 does completely custom and crazy stuff, so it is not changed.
2. XCore has some custom handling for extra directives.  I'll look at it next.
3. This switches linux/ppc to use .globl instead of .global.  If .globl is
   actually wrong, let me know and I'll fix it.
4. This makes linux/ppc get a lot of random cases right which were obviously
   wrong before, it is probably now a bit healthier.
5. Blackfin will probably start getting .comm and other things that it didn't
   before.  If this is undesirable, it should explicitly opt out of these
   things by clearing the relevant fields of MCAsmInfo.

This leads to a nice diffstat:
 14 files changed, 127 insertions(+), 830 deletions(-)

llvm-svn: 93858
2010-01-19 05:38:33 +00:00
Chris Lattner
baaf5eae3c simplify the mips target to print .size and .type for c strings
just like all other elf targets.  Bruno, if this isn't right, please
let me know + why :)

llvm-svn: 93856
2010-01-19 05:23:59 +00:00
Chris Lattner
6f360c3c91 now that MCSymbol::print doesn't use it's MAI argument, we can
remove it and change all the code that prints MCSymbols to use 
<< instead, which is much simpler and cleaner.

llvm-svn: 93695
2010-01-17 21:43:43 +00:00
Chris Lattner
40eb58664f MCize a bunch more stuff, eliminating a lot of uses of the mangler
and CurrentFnName.

llvm-svn: 93594
2010-01-16 00:21:18 +00:00
Dan Gohman
9bcfdf98f1 Change SelectCode's argument from SDValue to SDNode *, to make it more
clear what information these functions are actually using.

This is also a micro-optimization, as passing a SDNode * around is
simpler than passing a { SDNode *, int } by value or reference.

llvm-svn: 92564
2010-01-05 01:24:18 +00:00
Eric Christopher
5c812e2396 Fix setting and default setting of code model for jit. Do this
by allowing backends to override routines that will default
the JIT and Static code generation to an appropriate code model
for the architecture.

Should fix PR 5773.

llvm-svn: 91824
2009-12-21 08:15:29 +00:00
Douglas Gregor
f39dd74a3f Fix a bunch of little errors that Clang complains about when its being pedantic
llvm-svn: 91764
2009-12-19 07:05:23 +00:00
Dan Gohman
f9654e9258 Remove the target hook TargetInstrInfo::BlockHasNoFallThrough in favor of
MachineBasicBlock::canFallThrough(), which is target-independent and more
thorough.

llvm-svn: 90634
2009-12-05 00:44:40 +00:00
Bruno Cardoso Lopes
038281c523 Support PIC loading of constant pool entries
llvm-svn: 89863
2009-11-25 12:17:58 +00:00
Bruno Cardoso Lopes
974ab18d0e Use endianess dependent offsets for load/store of doubles when
using two swc/lwc instead of sdc/ldc.

llvm-svn: 89826
2009-11-25 01:05:25 +00:00
Bruno Cardoso Lopes
6d23fc8097 Only include in the callee saved regs the sub registers to avoid
unnecessary save/restore.

llvm-svn: 89823
2009-11-25 00:47:43 +00:00
Bruno Cardoso Lopes
7316c984a5 Add proper emission of load/store double to stack slots for mips1 targets!
llvm-svn: 89821
2009-11-25 00:36:00 +00:00
Dan Gohman
b5ec39e2dc Remove ISD::DEBUG_LOC and ISD::DBG_LABEL, which are no longer used.
Note that "hasDotLocAndDotFile"-style debug info was already broken;
people wanting this functionality should implement it in the
AsmPrinter/DwarfWriter code.

llvm-svn: 89711
2009-11-23 23:20:51 +00:00
Devang Patel
327919890c We are not using DBG_STOPPOINT anymore.
llvm-svn: 89536
2009-11-21 02:46:55 +00:00
Bruno Cardoso Lopes
bf95b9699e - Add sugregister logic to handle f64=(f32,f32).
- Support mips1 like load/store of doubles:

Instead of:
  sdc $f0, X($3)
Generate:
  swc $f0, X($3)
  swc $f1, X+4($3)

llvm-svn: 89322
2009-11-19 06:06:13 +00:00
Bruno Cardoso Lopes
2cb8938a96 Only use small sections for non linux targets!
llvm-svn: 89316
2009-11-19 05:28:18 +00:00
Bruno Cardoso Lopes
f87fd996e2 Disable ldc1/sdc1 instructions for mips1 targets.
llvm-svn: 88887
2009-11-16 04:35:29 +00:00
Bruno Cardoso Lopes
21ca44ba49 - Fix a small bug while handling target constant pools (one param was missing).
- Add a smarter constant pool loading, instead of:

lui $2, %hi($CPI1_0)
addiu $2, $2, %lo($CPI1_0)
lwc1 $f0, 0($2)

Generate:

lui $2, %hi($CPI1_0)
lwc1 $f0, %lo($CPI1_0)($2)

llvm-svn: 88886
2009-11-16 04:33:42 +00:00
David Greene
97a1f550d1 Move DebugInfo checks into EmitComments and remove them from
target-specific AsmPrinters.  Not all comments need DebugInfo.

Re-enable the line numbers comment test.

llvm-svn: 88697
2009-11-13 21:34:57 +00:00
Bruno Cardoso Lopes
e3686712f7 Support fp64 immediate zero, this fixes only part of PR5445
because the testcase is triggering one more bug.

llvm-svn: 88674
2009-11-13 18:49:59 +00:00
David Greene
9934b1d063 Make the MachineFunction argument of getFrameRegister const.
This also fixes a build error.

llvm-svn: 87027
2009-11-12 21:00:03 +00:00
David Greene
58e7c6145b Add a bool flag to StackObjects telling whether they reference spill
slots.  The AsmPrinter will use this information to determine whether to
print a spill/reload comment.

Remove default argument values.  It's too easy to pass a wrong argument
value when multiple arguments have default values.  Make everything
explicit to trap bugs early.

Update all targets to adhere to the new interfaces..

llvm-svn: 87022
2009-11-12 20:49:22 +00:00
Bruno Cardoso Lopes
99e65b8707 A real solution for the first part of PR5445
llvm-svn: 86895
2009-11-11 23:09:33 +00:00
Bruno Cardoso Lopes
b662991460 Fix PR5445
llvm-svn: 86651
2009-11-10 02:35:13 +00:00
Bruno Cardoso Lopes
8bedc8bf3b Fix PR5149.
http://llvm.org/bugs/show_bug.cgi?id=5149

llvm-svn: 86543
2009-11-09 14:27:49 +00:00
Chris Lattner
25421b6954 indicate what the native integer types for the target are.
Please verify.

llvm-svn: 86397
2009-11-07 19:07:32 +00:00
Dan Gohman
eec0f1c506 Remove uninteresting and confusing debug output.
llvm-svn: 86149
2009-11-05 18:47:09 +00:00
Dan Gohman
3393a4c997 Rename usesCustomDAGSchedInserter to usesCustomInserter, and update a
bunch of associated comments, because it doesn't have anything to do
with DAGs or scheduling. This is another step in decoupling MachineInstr
emitting from scheduling.

llvm-svn: 85517
2009-10-29 18:10:34 +00:00
Evan Cheng
4e3bc5efb7 Add a second ValueType argument to isFPImmLegal.
llvm-svn: 85361
2009-10-28 01:43:28 +00:00
Evan Cheng
151726ad30 Do away with addLegalFPImmediate. Add a target hook isFPImmLegal which returns true if the fp immediate can be natively codegened by target.
llvm-svn: 85281
2009-10-27 19:56:55 +00:00
Nick Lewycky
2b8400628d Remove includes of Support/Compiler.h that are no longer needed after the
VISIBILITY_HIDDEN removal.

llvm-svn: 85043
2009-10-25 06:57:41 +00:00
Nick Lewycky
711c726c97 Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces.
Chris claims we should never have visibility_hidden inside any .cpp file but
that's still not true even after this commit.

llvm-svn: 85042
2009-10-25 06:33:48 +00:00
Jim Grosbach
61c5ce1bde Add register-reuse to frame-index register scavenging. When a target uses
a virtual register to eliminate a frame index, it can return that register
and the constant stored there to PEI to track. When scavenging to allocate
for those registers, PEI then tracks the last-used register and value, and
if it is still available and matches the value for the next index, reuses
the existing value rather and removes the re-materialization instructions.
Fancier tracking and adjustment of scavenger allocations to keep more
values live for longer is possible, but not yet implemented and would likely
be better done via a different, less special-purpose, approach to the
problem.

eliminateFrameIndex() is modified so the target implementations can return
the registers they wish to be tracked for reuse.

ARM Thumb1 implements and utilizes the new mechanism. All other targets are
simply modified to adjust for the changed eliminateFrameIndex() prototype.

llvm-svn: 83467
2009-10-07 17:12:56 +00:00
Dan Gohman
a803c712dd Instead of printing unnecessary basic block labels as labels in
verbose-asm mode, print comments instead. This eliminates a non-comment
difference between verbose-asm mode and non-verbose-asm mode.

Also, factor out the relevant code out of all the targets and into
target-independent code.

llvm-svn: 83392
2009-10-06 17:38:38 +00:00
Devang Patel
a8f35ac640 Update processDebugLoc() so that it can be used to process debug info before and after printing an instruction.
llvm-svn: 83363
2009-10-06 02:19:11 +00:00
Dan Gohman
cc0c3fe456 Remove explicit enum integer values. They don't appear to be needed, and
they make it less convenient to add new entries.

llvm-svn: 83308
2009-10-05 15:52:08 +00:00
Devang Patel
e097bf49d0 Use MachineInstr as an processDebugLoc() argument.
This will allow processDebugLoc() to handle scopes for DWARF debug info. 

llvm-svn: 83183
2009-09-30 23:12:50 +00:00
Bob Wilson
1cf44c8225 Add a new virtual EmitStartOfAsmFile method to the AsmPrinter and use this
to emit target-specific things at the beginning of the asm output.  This
fixes a problem for PPC, where the text sections are not being kept together
as expected.  The base class doInitialization code calls DW->BeginModule()
which emits a bunch of DWARF section directives.  The PPC doInitialization
code then emits all the TEXT section directives, with the intention that they
will be kept together. But as I understand it, the Darwin assembler treats
the default TEXT section as a special case and moves it to the beginning of
the file, which means that all those DWARF sections are in the middle of
the text.  With this change, the EmitStartOfAsmFile hook is called before
the DWARF section directives are emitted, so that all the PPC text section
directives come out right at the beginning of the file.

llvm-svn: 83176
2009-09-30 22:06:26 +00:00
Dan Gohman
0c4e55a2f8 Rename getTargetNode to getMachineNode, for consistency with the
naming scheme used in SelectionDAG, where there are multiple kinds
of "target" nodes, but "machine" nodes are nodes which represent
a MachineInstr.

llvm-svn: 82790
2009-09-25 18:54:59 +00:00
Evan Cheng
7714c8412d Fix PR4926. When target hook EmitInstrWithCustomInserter() insert new basic blocks and update CFG, it should also inform sdisel of the changes so the phi source operands will come from the right basic blocks.
llvm-svn: 82311
2009-09-19 09:51:03 +00:00
Evan Cheng
7cb9c456e5 Enhance EmitInstrWithCustomInserter() so target can specify CFG changes that sdisel will use to properly complete phi nodes.
Not functionality change yet.

llvm-svn: 82273
2009-09-18 21:02:19 +00:00
Chris Lattner
334aa7a1d4 remove all but one reference to TargetRegisterDesc::AsmName.
llvm-svn: 81714
2009-09-13 20:31:40 +00:00
Chris Lattner
20b7392123 the tblgen produced 'getRegisterName' method does not access
the object, make it static instead of const.

llvm-svn: 81711
2009-09-13 20:19:22 +00:00
Chris Lattner
0cde5283e3 make tblgen produce a function that returns the name for a physreg.
Nothing is using this info yet.

llvm-svn: 81707
2009-09-13 20:08:00 +00:00
Chris Lattner
cbcbedf254 replace printBasicBlockLabel with EmitBasicBlockStart,
now that printBasicBlockLabel is only used for starting
a MBB.  This allows elimination of a bunch of arguments.

llvm-svn: 81684
2009-09-13 18:25:37 +00:00