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Commit Graph

35509 Commits

Author SHA1 Message Date
Dan Gohman
34b548b94a Fold (add x, shl(0 - y, n)) -> sub(x, shl(y, n)), to simplify some code
that SCEVExpander can produce when running on behalf of LSR.

llvm-svn: 93949
2010-01-19 23:30:49 +00:00
Bob Wilson
5daaa4b21c Wrap some comments to 80 columns.
llvm-svn: 93940
2010-01-19 22:56:26 +00:00
Dale Johannesen
8d25276141 Fix a case where debug_value was perturbing the
line number info.

llvm-svn: 93937
2010-01-19 22:50:05 +00:00
Dan Gohman
4ca37472ec When doing address-mode sinking, expand the base register first, rather
than the scaled register. This makes it more likely that subsequent
AddrModeMatcher queries will match the new address the same way as the
old, instead of accidentally matching what had been the base register
as the new scaled register, and then failing to match the scaled register.
This fixes some problems with address-mode sinking multiple muls into a
block, which will be a lot more common with some upcoming
LoopStrengthReduction changes.

llvm-svn: 93935
2010-01-19 22:45:06 +00:00
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
Dan Gohman
2c72837459 Add a comment and tidy up some whitespace.
llvm-svn: 93932
2010-01-19 22:27:22 +00:00
Dan Gohman
ddb23efce9 Fix a typo and an 80-column violation in comments.
llvm-svn: 93931
2010-01-19 22:26:02 +00:00
Dan Gohman
273322a12b Give ScalarEvolution access to the DominatorTree. It'll need this
to make more intellegent AddRec folding decisions.

llvm-svn: 93930
2010-01-19 22:21:27 +00:00
Chris Lattner
1b0d0247b2 simplify the rest of fp constant printing.
llvm-svn: 93929
2010-01-19 22:16:33 +00:00
Chris Lattner
53a988c8f1 simplify the code for printing x86 long double, don't do work
for -fverbose-asm unless it's on.

llvm-svn: 93926
2010-01-19 22:11:05 +00:00
Jakob Stoklund Olesen
b93c3b9624 Identify predicate and optional-def operands when printing machine
instructions.

llvm-svn: 93925
2010-01-19 22:08:34 +00:00
Chris Lattner
20c1857075 add a new EmitIntValue method that MCStreamer impls can optionally define
and that clients can use.

llvm-svn: 93923
2010-01-19 22:03:38 +00:00
Dan Gohman
71b2d12a48 Add a new helper function to IVUsers for returning the "canonical"
form of an expression. This is the expression without the
post-increment adjustment made, which is useful in determining
which registers will be used by the expansion.

llvm-svn: 93921
2010-01-19 21:55:32 +00:00
Chris Lattner
2842ccd76f eliminate AsmPrinter::EmitZeros: just use MCStreamer directly.
llvm-svn: 93918
2010-01-19 21:51:22 +00:00
Sean Callanan
4bb95fd7d6 Promoted the getTok() method to MCAsmParser so that
the two token accessor functions are declared consistently.
Modified the clients of MCAsmParser to reflect this change.

llvm-svn: 93916
2010-01-19 21:44:56 +00:00
Xerxes Ranby
c3fa089148 Stubs for getHostCPUFeatures API. This implements part of PR5389.
llvm-svn: 93913
2010-01-19 21:26:05 +00:00
Jakob Stoklund Olesen
e7d4286d73 Remove predicates when changing an add into an unpredicable mov.
Since the mov is executed unconditionally, make sure that the add didn't have
any predicate.

llvm-svn: 93909
2010-01-19 21:08:28 +00:00
Benjamin Kramer
5ad576dacf Update CMake list.
llvm-svn: 93905
2010-01-19 20:59:04 +00:00
David Greene
fde2825063 Add some new debugging APIs to print out "raw" SelectionDAGs to make
understanding CannotYTetSelect and other errors easier.

llvm-svn: 93901
2010-01-19 20:37:34 +00:00
Sean Callanan
7fa5ebbed0 Propagated the parser-side Lex function's declaration to
MCAsmParser, and changed the target-specific AsmParsers
to use it.

llvm-svn: 93900
2010-01-19 20:27:46 +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
Chris Lattner
336c2b0d47 Generalize mcasmstreamer data emission APIs to take an address space
identifier.  There is no way to work around it.

llvm-svn: 93896
2010-01-19 19:46:13 +00:00
Evan Cheng
4b916556a5 Do not extend extension results beyond the use of a PHI instruction at the start of a use block. A PHI use is expected to kill its source values.
llvm-svn: 93895
2010-01-19 19:45:51 +00:00
Chris Lattner
a5895e4127 refactor code to be static functions instead of methods on AsmPrinter.
This fixes some bugs handling address spaces.

llvm-svn: 93891
2010-01-19 19:10:44 +00:00
Chris Lattner
b98efb6e76 mcstreamerize AsmPrinter::EmitZeros, at least when emitting to the
default address space.

llvm-svn: 93890
2010-01-19 18:58:52 +00:00
Chris Lattner
7c3ff46d45 add an MCAsmStreamer::EmitFill specialization of EmitFill that
emits one directive instead of N.  Not doing this would be a
significant regression on the # bytes generated by .fill.

llvm-svn: 93889
2010-01-19 18:52:28 +00:00
Chris Lattner
f26d29e436 add a "MCStreamer::EmitFill" method, and move the default implementation
(which just iteratively emits bytes) to MCStreamer.

llvm-svn: 93888
2010-01-19 18:45:47 +00:00
Chris Lattner
50636e0db8 remove MAI::ZeroDirectiveSuffix, which is only used by MASM,
which we don't support anymore.

llvm-svn: 93886
2010-01-19 18:37:01 +00:00
Jim Grosbach
034f69e0aa For aligned load/store instructions, it's only required to know whether a
function can support dynamic stack realignment. That's a much easier question
to answer at instruction selection stage than whether the function actually
will have dynamic alignment prologue. This allows the removal of the
stack alignment heuristic pass, and improves code quality for cases where
the heuristic would result in dynamic alignment code being generated when
it was not strictly necessary.

llvm-svn: 93885
2010-01-19 18:31:11 +00:00
Chris Lattner
e0124f19f9 optimize ~(~X >>s Y) --> (X >>s Y), patch by Edmund Grimley
Evans!

llvm-svn: 93884
2010-01-19 18:16:19 +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
405ac51ba0 mcstreamer'ize the rest of EmitGlobalVariable that is used on
darwin.  The next big piece to get global variables streamerized
is EmitGlobalConstant.

llvm-svn: 93870
2010-01-19 06:41:24 +00:00
Chris Lattner
15e2a64ec2 stop using the .lcomm pseudoop on darwin, instead, directly use the
.zerofill directive.  Streamerize its generation.

llvm-svn: 93868
2010-01-19 06:25:51 +00:00
Devang Patel
a230047a58 MDNodes are not expected to disappear or replaced by another MDNode, so there is no need to pay the cost of WeakVH and ValueMaps.
llvm-svn: 93865
2010-01-19 06:19:05 +00:00
Devang Patel
bb63f9dd91 Avoid including DebugInfo.h in AsmPrinter.h
llvm-svn: 93864
2010-01-19 06:09:04 +00:00
Chris Lattner
8aa691460a zap the ARM version of PrintGlobalVariable, which I missed.
llvm-svn: 93863
2010-01-19 06:08:15 +00:00
Chris Lattner
e339d60351 mc'ize some stuff, don't comment out .lcomm directive in -fverbose-asm mode.
llvm-svn: 93860
2010-01-19 06:01:04 +00:00
Chris Lattner
ebe63b403e factor this code better.
llvm-svn: 93859
2010-01-19 05:51:42 +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
17135fc4b8 use %object like other elf targets, gas accepts either.
llvm-svn: 93857
2010-01-19 05:25:38 +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
f0edf967c7 hookize the cygwin ".linkonce" directive.
llvm-svn: 93855
2010-01-19 05:08:13 +00:00
Chris Lattner
4ffb7d26a2 more cleanups. Emit the .local directive even on cygwin/mingw.
I'm not sure that this is correct, but it causes no test failures,
and just emitting a .comm without protecting its linkage somehow
is surely not right.

llvm-svn: 93854
2010-01-19 04:59:55 +00:00
Chris Lattner
fce81941eb some cleanups
llvm-svn: 93853
2010-01-19 04:53:18 +00:00
Chris Lattner
7351e3a364 add a bool for whether .lcomm takes an alignment instead of basing this on "isdarwin".
llvm-svn: 93852
2010-01-19 04:48:20 +00:00
Chris Lattner
f904832189 hoist handling of external globals and special globals up to common code.
This makes a similar code dead in all the other targets, I'll clean it up
in a bit.

This also moves handling of lcomm up before acquisition of a section,
since lcomm never needs a section.

llvm-svn: 93851
2010-01-19 04:39:15 +00:00
Chris Lattner
3821a5f168 move production of .reference directives for static ctor/dtor list on
darwin into common code.

llvm-svn: 93849
2010-01-19 04:34:02 +00:00
Bob Wilson
e94d77854f Fix a crash in scalarrepl for memcpy/memmove where the source and destination
are the same.  I had already fixed a similar problem where the source and
destination were different bitcasts derived from the same alloca, but the
previous fix still did not handle the case where both operands are exactly
the same value.  Radar 7552893.

llvm-svn: 93848
2010-01-19 04:32:48 +00:00
Chris Lattner
b5e64bd377 use BSSLocal classifier to identify 'lcomm' data instead of
duplicating the logic (differently) in lots of different targets.

llvm-svn: 93847
2010-01-19 04:21:20 +00:00
Chris Lattner
63ef960b83 make TLOF subclassify BSS based on linkage type into private, external
and everything else (weak).

llvm-svn: 93846
2010-01-19 04:15:51 +00:00
Chris Lattner
eeebf5a580 now that elf weak bss symbols are handled correctly, simplify a bunch of code.
llvm-svn: 93845
2010-01-19 03:13:44 +00:00
Chris Lattner
c42d723862 fix a significant difference between llvm and gcc on ELF systems:
GCC would put weak zero initialized mutable data in the .bss section,
we would put it into a crasy '.gnu.linkonce.b.test,"aw",@nobits' 
section.  Fixing this will allow simplifications next up.

llvm-svn: 93844
2010-01-19 03:06:01 +00:00
Chris Lattner
77f12b9ee0 introduce a section kind for common linkage. Use this to slightly
simplify and commonize some of the asmprinter logic for globals.

This also avoids printing the MCSection for .zerofill, which broke
the llvm-gcc build.

llvm-svn: 93843
2010-01-19 02:48:26 +00:00
Bill Wendling
1e66a08920 Even more explanation.
llvm-svn: 93841
2010-01-19 02:44:01 +00:00
Chris Lattner
53d8210a69 change an accessor to a predicate.
llvm-svn: 93839
2010-01-19 02:13:06 +00:00
Chris Lattner
816fcd1287 Cleanup handling of .zerofill on darwin:
1. TargetLoweringObjectFileMachO should decide if something
   goes in zerofill instead of having every target do it.
2. TargetLoweringObjectFileMachO should assign said symbols to
   the right MCSection, the asmprinters should just emit to the
   right section.
3. Since all zerofill stuff goes through mcstreamer anymore,
   MAI can have a bool "haszerofill" instead of having the textual
   directive to emit.

llvm-svn: 93838
2010-01-19 02:09:44 +00:00
Nate Begeman
3c96073ce7 Remove this fixme, looking at the linker source, all targets pad to 4 bytes.
llvm-svn: 93835
2010-01-19 01:32:44 +00:00
Devang Patel
885bd38bfc Revert accident check-in from r93165.
llvm-svn: 93832
2010-01-19 01:26:02 +00:00
Eric Christopher
5b602f9bf7 Fix comment.
llvm-svn: 93831
2010-01-19 01:20:15 +00:00
Evan Cheng
f1a3f81a1d Fix r93758. Use isel patterns instead of c++ selection code to select rbit and make sure we pick different instructions for ARM vs. Thumb2.
llvm-svn: 93829
2010-01-19 00:44:15 +00:00
Dale Johannesen
e1ba7ecf45 Revert 93811 per request.
llvm-svn: 93818
2010-01-19 00:10:52 +00:00
Dale Johannesen
0b8b2713d3 Enable code to emit dbg.declare as DEBUG_VALUE
comments (fast isel, X86).  This doesn't seem
to break any functionality, but will introduce
cases where -g affects the generated code.  I'll
be fixing that.

llvm-svn: 93811
2010-01-18 23:34:55 +00:00
Victor Hernandez
edcdd08463 Add comment that MDNode::getFunction() is not to be used by performance-critical code (currently only used by AsmWriter)
llvm-svn: 93802
2010-01-18 22:55:08 +00:00
Eli Friedman
0aade63ca6 Add some potentially interesting transformations to README.
llvm-svn: 93797
2010-01-18 22:36:59 +00:00
Bill Wendling
58d26c105b - Add getLSDAEncoding to the PowerPC backend.
- Greatly improve the comments to the getLSDAEncoding method.

llvm-svn: 93796
2010-01-18 22:36:35 +00:00
Chris Lattner
6cd7a81f86 my instcombine transformations to make extension elimination more
aggressive changed the canonical form from sext(trunc(x)) to ashr(lshr(x)),
make sure to transform a couple more things into that canonical form,
and catch a case where we missed turning zext/shl/ashr into a single sext.

llvm-svn: 93787
2010-01-18 22:19:16 +00:00
Eric Christopher
f599e07003 Have FastISel handle llvm.trap().
llvm-svn: 93781
2010-01-18 22:11:29 +00:00
Jim Grosbach
27e064420b Minor cleanup for jump table printing. Need a reference, not a pointer, for
printing via <<. Otherwise we just print the pointer value.

llvm-svn: 93777
2010-01-18 22:01:39 +00:00
Evan Cheng
5cf9d23e4e Canonicalize -1 - x to ~x.
Instcombine does this but apparently there are situations where this pattern will escape the optimizer and / or created by isel. Here is a case that's seen in JavaScriptCore:
  %t1 = sub i32 0, %a
  %t2 = add i32 %t1, -1
The dag combiner pattern: ((c1-A)+c2) -> (c1+c2)-A
will fold it to -1 - %a.

llvm-svn: 93773
2010-01-18 21:38:44 +00:00
Victor Hernandez
afaac26fea Make findDbgDeclare/findDbgGlobalDeclare local static functions; avoid Elts array
llvm-svn: 93764
2010-01-18 20:42:09 +00:00
Victor Hernandez
247ec55125 Simplify MDNode::getFunction() and assertLocalFunction() by avoiding extra Function* variable and smallptrset since function-local metadata cannot be cyclic
llvm-svn: 93762
2010-01-18 20:36:54 +00:00
Johnny Chen
a5f79a6b93 The most significant encoding bit of GPR:$src or GPR:$dst was over-specified in
the various MOV (register) instructions (16-bit Thumb), including tBRIND (the
indirect branch).  Instead of '1', it should be specified as '?', because GPR
only specifies the register class, which includes both hi-and-lo registers.

llvm-svn: 93759
2010-01-18 20:15:56 +00:00
Jim Grosbach
70af2216fd Patch by David Conrad:
"On ARMv6T2 this turns cttz into rbit, clz instead of the 4 instruction
 sequence it is now."

llvm-svn: 93758
2010-01-18 19:58:49 +00:00
Devang Patel
2cae5754c6 While mapping llvm.dbg.declare intrinsic manually map its operand, if possible,
because it points to an alloca instruction through metadata.

llvm-svn: 93757
2010-01-18 19:52:14 +00:00
Chris Lattner
4104b0bccd reject some invalid IR. We already assert and reject this from the
.ll parser, but PR6070 wants it in the verifier too.

llvm-svn: 93756
2010-01-18 19:50:32 +00:00
Bill Wendling
db47c10171 Add FIXME comment.
llvm-svn: 93755
2010-01-18 19:47:53 +00:00
Bill Wendling
5678a9711b - Add a comment to the callback indicating that it's *extremely* not a good
idea, but unfortunately necessary.
- Default to using 4-bytes for the LSDA pointer encoding to agree with the
  encoded value in the CIE.

llvm-svn: 93753
2010-01-18 19:36:27 +00:00
Victor Hernandez
b1b145fed9 Make printing of metadata more robust when function is not found (which is the normal situation for non function-local metadata)
llvm-svn: 93748
2010-01-18 19:15:57 +00:00
Benjamin Kramer
21e6f07f53 Fix refacto reported by Nicolas Geoffray.
llvm-svn: 93723
2010-01-18 12:40:05 +00:00
Bob Wilson
ac3735b7fb Emit spaces after commas in Neon register lists. This is more consistent
with the rest of the assembly output, is easier to read, and matches the
expected output for gcc's Neon tests.

llvm-svn: 93703
2010-01-18 01:24:43 +00:00
Chris Lattner
40f9b01ab5 switch x86 zerofill emission over to use MCStreamer.
llvm-svn: 93702
2010-01-18 01:21:08 +00:00
Chris Lattner
d7bd67fa61 Change CurrentFnSym to be a non-const pointer since asmprinter mutates it
as it emits code.  Switch .globl directives to use OutStreamer instead of
doing it textually (in x86)

llvm-svn: 93700
2010-01-18 00:59:24 +00:00
Chris Lattner
86287085ba remove the MAI argument to MCExpr::print and switch overthing to use << when printing them.
llvm-svn: 93699
2010-01-18 00:37:40 +00:00
Chris Lattner
a1bd99bd92 unbreak x86 jump tables with my previous patch.
llvm-svn: 93698
2010-01-18 00:21:06 +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
bd2eeabe74 rename NameNeedsEscaping -> NameNeedsQuoting, eliminate the check
for first character which is a digit, mangler would have taken care
of this already.

llvm-svn: 93694
2010-01-17 20:11:03 +00:00
Owen Anderson
d73ce407a5 Convert some of the dynamic opcode lookups into static ones.
llvm-svn: 93693
2010-01-17 19:33:27 +00:00
Chris Lattner
c2047ba3e4 stop the CBE from using Mangler::appendMangledName, which is a private function, it is mangling types, which don't matter how they are done.
llvm-svn: 93692
2010-01-17 19:32:29 +00:00
Chris Lattner
f7c6508544 Get MCSymbol out of the mangling business, and move all the logic
to Mangler.  Now MCSymbol just decides whether to slap quotes around
a symbol when printing it.

This also fixes some weirdness where two MCSymbols could be created
for the same symbol, if one needed to be mangled and got mangled to
the other one.

llvm-svn: 93690
2010-01-17 19:23:46 +00:00
Chris Lattner
ffa28b64e5 factor this code better how that the string version of getNameWithPrefix
takes a twine.

llvm-svn: 93687
2010-01-17 18:52:16 +00:00
Chris Lattner
57ac0be2b5 now that mangler is in libtarget, it can use MCAsmInfo instead of clients
having to pass various fields from it in.  Simplify.

llvm-svn: 93686
2010-01-17 18:22:35 +00:00
Benjamin Kramer
77e20e0bed Switch some functions to take Twines, eliminate uses of StringExtras.h.
llvm-svn: 93680
2010-01-17 07:46:39 +00:00
Owen Anderson
50cacaff8f Fix comment.
llvm-svn: 93679
2010-01-17 06:49:03 +00:00
Bob Wilson
72cf548263 The Neon "vtst" instruction takes a suffix that is the element size alone --
adding an "i" to the suffix, indicating that the elements are integers, is
accepted but not part of the standard syntax.  This helps us pass a few more
of the Neon tests from gcc.

llvm-svn: 93677
2010-01-17 06:35:17 +00:00
Bob Wilson
b4c16ab0b3 Fix an off-by-one error that caused the chain operand to be dropped from Neon
vector load-lane and store-lane instructions.

llvm-svn: 93673
2010-01-17 05:58:23 +00:00
Nate Begeman
04da97bd5e Add a note for the macho streamer and remove a used of the mangler from the soon to be defunct machowriter pass.
llvm-svn: 93670
2010-01-17 03:49:01 +00:00
Kenneth Uildriks
d6b30baf78 When checking for sret-demotion, it needs to use legal types. When using the return value of an sret-demoted call, it needs to use possibly illegal types that match the declared Type of the callee.
llvm-svn: 93667
2010-01-16 23:37:33 +00:00
Benjamin Kramer
58787e4d0b Update CMake files for Mangler move.
llvm-svn: 93665
2010-01-16 22:23:09 +00:00
Chris Lattner
51e8abe640 move the mangler into libtarget from vmcore.
llvm-svn: 93664
2010-01-16 21:57:06 +00:00
Chris Lattner
6efe5156eb reapply the mangler gutting patch.
llvm-svn: 93656
2010-01-16 21:08:46 +00:00
Chris Lattner
98ddc4b8b0 unbreak the build.
llvm-svn: 93654
2010-01-16 20:53:11 +00:00
Rafael Espindola
d6c021a8d7 Revert 93648.
Mangler::getMangledName is used from lto
Mangler::setUseQuotes is used in the AsmPrinter
Mangler::setSymbolsCanStartWithDigit is used in the AsmPrinter

llvm-svn: 93652
2010-01-16 20:27:59 +00:00
Chris Lattner
16324d20f6 Mangler::getMangledName is now dead, remove it and all the other stuff in Mangler that is now transitively dead. woo.
llvm-svn: 93648
2010-01-16 19:08:51 +00:00
Chris Lattner
04b7c11880 Change DIEObjectLabel to take an MCSymbol instead of std::string.
llvm-svn: 93647
2010-01-16 18:50:28 +00:00
Chris Lattner
31aea3db21 rename GetPrivateGlobalValueSymbolStub -> GetSymbolWithGlobalValueBase,
and add an explicit ForcePrivate argument.

Switch FunctionEHFrameInfo to be MCSymbol based instead of string based.

llvm-svn: 93646
2010-01-16 18:37:32 +00:00
Chris Lattner
31297eb826 eliminate uses of getMangledName from AsmPrinter.cpp, last up is
dwarf emission which is going to be more invasive.

llvm-svn: 93645
2010-01-16 18:17:26 +00:00
Chris Lattner
c88095b986 add an inefficient version of getNameWithPrefix that returns an std::string.
llvm-svn: 93641
2010-01-16 18:06:34 +00:00
Tobias Grosser
4ce43821ee Create Generic DOTGraphTraits Printer/Viewer
Move the DOTGraphTraits dotty printer/viewer templates, that were developed for
the dominance tree into their own header file. This will allow reuse in future
passes.

llvm-svn: 93632
2010-01-16 10:56:41 +00:00
Devang Patel
ab80d29640 No need to use WeakVH here.
llvm-svn: 93631
2010-01-16 06:17:40 +00:00
Devang Patel
3bbca51dcd Replace DebugLocTuple with DILocation.
llvm-svn: 93630
2010-01-16 06:09:35 +00:00
Chris Lattner
e4a8737985 fix build failure.
llvm-svn: 93628
2010-01-16 03:38:27 +00:00
Chris Lattner
a00f220023 remove a couple of actively incorrect uses of getMangledName.
llvm-svn: 93627
2010-01-16 02:16:09 +00:00
Chris Lattner
33ba751c32 this doesn't need the mangler.
llvm-svn: 93626
2010-01-16 02:15:38 +00:00
Chris Lattner
8955452658 more string -> sym, getMangledName is now gone from this file.
llvm-svn: 93624
2010-01-16 02:09:06 +00:00
Chris Lattner
1ca411ee68 use symbols instead of strings, eliminating a bunch of getMangledName
calls.  Add FIXMEs about a bunch of nondeterminism in stub output.

llvm-svn: 93621
2010-01-16 02:00:23 +00:00
Chris Lattner
f227cb9fe7 simplify some code.
llvm-svn: 93619
2010-01-16 01:45:47 +00:00
Bill Wendling
d78fcdd332 Retrying r91337:
The CIE says that the LSDA point in the FDE section is an "sdata4". That's fine,
but we need it to actually be 4-bytes in the FDE for some platforms. Allow
individual platforms to decide for themselves.

llvm-svn: 93616
2010-01-16 01:40:55 +00:00
Chris Lattner
ea72cfbd42 eliminate uses of mangler and simplify code.
llvm-svn: 93615
2010-01-16 01:40:07 +00:00
Chris Lattner
8813339969 fix inverted conditional
llvm-svn: 93614
2010-01-16 01:37:14 +00:00
Chris Lattner
61a95137c9 CurrentFnName is now dead, remove it.
llvm-svn: 93612
2010-01-16 01:24:10 +00:00
Chris Lattner
bda0bbf7f9 get pic16 off CurrentFnName
llvm-svn: 93610
2010-01-16 01:21:04 +00:00
Chris Lattner
bb21a20f24 remove the string form of printVisibility.
llvm-svn: 93609
2010-01-16 01:17:26 +00:00
Chris Lattner
ef45b87192 switch more stuff onto MCSymbols
llvm-svn: 93608
2010-01-16 01:12:01 +00:00
Bill Wendling
921cd93e85 Temporarily revert r93581. It was causing failures in the ExecutionEngine tests
on the build bots.

llvm-svn: 93606
2010-01-16 01:06:58 +00:00
Chris Lattner
ff1a508835 eliminate uses of deprecated mangler apis
llvm-svn: 93605
2010-01-16 01:00:27 +00:00
Chris Lattner
cbe9fe90bd switch X86 target off CurFunctionName and MCIze more.
Note that the code wasn't calling DecorateCygMingName
when emitting the ".ascii -export" stuff at the end of
file for DLLExported functions.  I don't know if it should
or not, but I'm preserving behavior.

llvm-svn: 93603
2010-01-16 00:51:39 +00:00
Bob Wilson
a7043345ee Treat indirect branches specially only during pre-regalloc tail duplication,
not during the later post-alloc tail duplication.

llvm-svn: 93600
2010-01-16 00:42:25 +00:00
Chris Lattner
0bb1df70ef MCize tis, and make it keep CurrentFnSym up to date with CurrentFnName.
llvm-svn: 93598
2010-01-16 00:32:38 +00:00
Bob Wilson
3386047bdb Run the pre-register allocation tail duplication pass by default. Remove
the -pre-regalloc-taildup command-line option, and add a new
-disable-early-taildup option.

llvm-svn: 93597
2010-01-16 00:29:50 +00:00
Chris Lattner
e76d575ca2 revert the x86 part of my last patch, cygwin is mutating CurrentFnName!
llvm-svn: 93595
2010-01-16 00:24:20 +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
Chris Lattner
9103a49143 remove two write-only sets.
llvm-svn: 93590
2010-01-15 23:56:03 +00:00
Chris Lattner
b1b91d11db supplement CurrentFnName with CurrentFnSym, which will eventually
replace it.  Upgrade Alpha, Blackfin, and part of CellSPU to not
use mangler anymore.  CellSPU needs more invasive surgery.

llvm-svn: 93589
2010-01-15 23:55:16 +00:00
Chris Lattner
5f4c482b72 add a version of AsmPrinter::printVisibility that takes an MCSymbol.
llvm-svn: 93587
2010-01-15 23:38:51 +00:00
Chris Lattner
8511f8cc1e use MCSymbol instead of getMangledName() in all cases except one.
llvm-svn: 93582
2010-01-15 23:31:55 +00:00
Ted Kremenek
bb1779e022 BumpPtrAllocator: Have the DefaultSlabAllocator created at runtime, not initialization time. This removes one of the 'init_constructors' reported in <rdar://problem/7545356>.
llvm-svn: 93581
2010-01-15 23:29:34 +00:00
Dale Johannesen
9f30926cb7 Adjust some comments per review.
llvm-svn: 93580
2010-01-15 23:29:29 +00:00
Chris Lattner
000ca8fe0c mc'ize a bunch of symbol stuff, eliminating std::strings.
llvm-svn: 93578
2010-01-15 23:26:49 +00:00
Chris Lattner
e293db0c8a add another helper
llvm-svn: 93577
2010-01-15 23:25:11 +00:00
David Greene
e52529d7cb Fix PR6019. A load has more than one use if it feeds a bitconvert that
has more than one use.

llvm-svn: 93576
2010-01-15 23:23:41 +00:00
Chris Lattner
ea4d444561 add a AsmPrinter::GetGlobalValueSymbol and GetExternalSymbolSymbol
helper method, use it to simplify some code.

llvm-svn: 93575
2010-01-15 23:18:17 +00:00
Ted Kremenek
0e9c12f44a Update CMake build.
llvm-svn: 93571
2010-01-15 22:59:46 +00:00
Ted Kremenek
89fb514857 Update CMake build.
llvm-svn: 93570
2010-01-15 22:59:11 +00:00
Dale Johannesen
7a3b1c5ffc DEBUG_VALUE is now variable sized, as it has a
target-dependent memory address representation in it.
Restore X86 printing of DEBUG_VALUE; lowering is
done in X86RegisterInfo using the normal algorithm.

llvm-svn: 93565
2010-01-15 22:22:35 +00:00
Jim Grosbach
5a66487dfd Update Thumb1 storeRegToStackSlot() and loadRegFromStackSlot() to properly
handle physical registers R0-R7 when described as having a non-tGPR register
class.

llvm-svn: 93564
2010-01-15 22:21:03 +00:00
Dan Gohman
7b9900094e Fix a typo that Anton noticed.
llvm-svn: 93563
2010-01-15 22:18:15 +00:00
Devang Patel
dfde8cf532 Add FIXME.
llvm-svn: 93562
2010-01-15 22:08:16 +00:00
Bob Wilson
bdd9890c7d Fix a comment typo.
llvm-svn: 93560
2010-01-15 21:55:02 +00:00
Eric Christopher
3c5d9dc0e3 Remove the InlineHint attribute. There are no current or planned
users.

llvm-svn: 93558
2010-01-15 21:36:30 +00:00
Anton Korobeynikov
8d5197ab8a zext / truncate is free on msp430. Inform codegen about this.
llvm-svn: 93556
2010-01-15 21:19:43 +00:00
Anton Korobeynikov
f1080f2bbe Add branch relaxation pass (shamelessly stolen from PPC).
llvm-svn: 93554
2010-01-15 21:19:05 +00:00
Anton Korobeynikov
75c93b4ec3 Provide instruction sizes & encoding. No opcodes yet (but not needed so far).
llvm-svn: 93553
2010-01-15 21:18:39 +00:00
Anton Korobeynikov
719dd1465f Enable bit tests and setcc stuff.
llvm-svn: 93552
2010-01-15 21:18:18 +00:00
Anton Korobeynikov
aaed919671 Add micro-optimization which allows us to fold imm into cmp. This allows us to save 1 word (sometimes) and reduce register pressure.
llvm-svn: 93551
2010-01-15 21:18:02 +00:00
Anton Korobeynikov
0ca5fcdfaa Add instruction formats & support stuff
llvm-svn: 93550
2010-01-15 21:17:13 +00:00
Jakob Stoklund Olesen
65bc6159f6 Don't make changes to the MBB in MachineBasicBlock::canFallThrough().
This fixes the regression for -pre-regalloc-taildup in
MultiSource/Applications/lambda-0.1.3.

llvm-svn: 93541
2010-01-15 20:00:12 +00:00
Jakob Stoklund Olesen
cf4c604899 Simplify logic. Any functional change is unintended.
llvm-svn: 93540
2010-01-15 19:59:57 +00:00
Chris Lattner
493580bb5c unbreak the build, grr symlinks.
llvm-svn: 93539
2010-01-15 19:51:05 +00:00
David Greene
d8faccbeab Add some debug routines to SelectionDAG to dump full DAGs.
print/dumpWithDepth allows one to dump a DAG up to N levels deep.
dump/printWithFullDepth prints the whole DAG, subject to a depth limit
on 100 in the default case (to prevent infinite recursion).

Have CannotYetSelect to a dumpWithFullDepth so it is clearer exactly
what the non-matching DAG looks like.

llvm-svn: 93538
2010-01-15 19:43:23 +00:00
Chris Lattner
d6b351119b fix a bug in range information for $42, eliminate an
unneeded argument from ParseExpression.

llvm-svn: 93536
2010-01-15 19:39:23 +00:00
Chris Lattner
e18762283a add range information for mem X86Operand's, now all
X86Operand's have range info.

llvm-svn: 93535
2010-01-15 19:33:43 +00:00
Chris Lattner
836cf5d129 extend MCAsmParser::ParseExpression and ParseParenExpression
to return range information for subexpressions.  Use this to
provide range info for several new X86Operands.

llvm-svn: 93534
2010-01-15 19:28:38 +00:00
Chris Lattner
fba7cf4b44 give X86Operand a ctor and start passing SMLoc's into it.
llvm-svn: 93532
2010-01-15 19:06:59 +00:00
Victor Hernandez
c1b5223e76 Improve llvm.dbg.declare intrinsic by referring directly to the storage in its first argument, via function-local metadata (instead of via a bitcast).
This patch also cleans up code that expects there to be a bitcast in the first argument and testcases that call llvm.dbg.declare.
It also strips old llvm.dbg.declare intrinsics that did not pass metadata as the first argument.

llvm-svn: 93531
2010-01-15 19:04:09 +00:00
Dale Johannesen
e3562c3fa2 Revert 93499. After discussion with Chris we agreed
FrameIndexes should be lowered, but the same way as
everything else (target dependent) rather than in a
special hacked way.  The lowering needs to be done
for eventual purposes of Dwarf generation.

llvm-svn: 93530
2010-01-15 18:58:14 +00:00
Chris Lattner
618f75b46e add range location info for registers, change
X86Operand::Create* implementations to avoid
copy ctor use.

llvm-svn: 93528
2010-01-15 18:51:29 +00:00
Nate Begeman
b6c8d75f62 Hook up llc's -filetype=obj to use MCStreamer if an MCCodeEmitter is available.
Remove most of old Mach-O Writer support, it has been replaced by MCMachOStreamer

Further refactoring to completely remove MachOWriter and drive the object file
writer with the AsmPrinter MCInst/MCSection logic is forthcoming.

llvm-svn: 93527
2010-01-15 18:51:18 +00:00
Chris Lattner
5d30d26a5d clean up the memory management of the operands.
llvm-svn: 93526
2010-01-15 18:44:13 +00:00
Chris Lattner
b032dc1768 refactor ParseRegister to avoid using X86Operand as a temporary
datastructure when parsing a mem operand.

llvm-svn: 93521
2010-01-15 18:27:19 +00:00
Victor Hernandez
97d7107d5e Revert r93504 because older uses of llvm.dbg.declare intrinsics need to be auto-upgraded
llvm-svn: 93515
2010-01-15 17:36:47 +00:00
Jay Foad
2277dd737c Fix http://llvm.org/PR6028, an assertion failure when an UndefValue of
integer type is used.

llvm-svn: 93509
2010-01-15 08:32:58 +00:00
Bob Wilson
b9a6da20e8 Change pre-regalloc tail duplication to only duplicate indirect branch blocks.
The pre-regalloc pass caused some regressions in both compile time and
performance of the generated code, and it did not improve performance, except
for indirect branches.  I also moved the check for single-block loops to speed
up the common case when running the taildup pass before reg allocation.

llvm-svn: 93505
2010-01-15 06:29:17 +00:00
Victor Hernandez
aee71b4e81 Improve llvm.dbg.declare intrinsic by referring directly to the storage in its first argument, via function-local metadata (instead of via a bitcast).
This patch also cleans up code that expects there to be a bitcast in the first argument and testcases that call llvm.dbg.declare.

llvm-svn: 93504
2010-01-15 03:37:48 +00:00
Dale Johannesen
12ae1f52c2 Lower FrameIndex operand of DEBUG_VALUE (specially) and
print it as a comment on X86.

llvm-svn: 93499
2010-01-15 01:54:55 +00:00
Anton Korobeynikov
fb1954f28d Fix cmp emission on msp430: we definitely should turn stuff like
"icmp lhs, rhs" into "cmp rhs, lhs". This should fix PR5979.

llvm-svn: 93496
2010-01-15 01:29:49 +00:00
Devang Patel
9c7b75ebb8 Do not use AT_specification die for static variables. It confuses gdb.
llvm-svn: 93494
2010-01-15 01:12:22 +00:00
Jim Grosbach
7239c4c92e fix 80-column violations
llvm-svn: 93487
2010-01-15 00:36:15 +00:00
Jim Grosbach
ed10ddd9c1 Fix 80 column violations and clean up whitespace
llvm-svn: 93484
2010-01-15 00:32:47 +00:00
Devang Patel
b41a4c332a Do not emit multiple AT_container_type attributes.
We need to find a better way to emit this info.

llvm-svn: 93481
2010-01-15 00:26:31 +00:00
Jim Grosbach
36c7973e76 Name change for consistency. No functional change.
llvm-svn: 93480
2010-01-15 00:22:18 +00:00
Jim Grosbach
ca3006c171 EmitAtomicCmpSwap() custome inserter needs to delete the MI passed in. EmitAtomicBinary() already does this.
llvm-svn: 93479
2010-01-15 00:18:34 +00:00
Jeffrey Yasskin
7a710b57f5 Teach PPC how to replaceMachineCodeForFunction correctly. (Fixes
JITTest.FunctionIsRecompiledAndRelinked.)

llvm-svn: 93475
2010-01-14 23:15:26 +00:00
Eric Christopher
9230a37bb0 Pad my commit stats by reducing indentation in this now separate
commit.

llvm-svn: 93473
2010-01-14 23:00:10 +00:00
Johnny Chen
a5f2e84b0c Added 16-bit Thumb Load/Store immediate instructions with encoding bits so that
the disassembler can properly decode Load/Store register/immediate instructions.

llvm-svn: 93471
2010-01-14 22:42:17 +00:00
Chris Lattner
882cb240a6 Split the TargetAsmParser "ParseInstruction" interface in half:
the new ParseInstruction method just parses and returns a list of
target operands.  A new MatchInstruction interface is used to
turn the operand list into an MCInst.

This requires new/deleting all the operands, but it also gives 
targets the ability to use polymorphic operands if they want to. 

llvm-svn: 93469
2010-01-14 22:21:20 +00:00
Anton Korobeynikov
5eb86c0b47 Remove pseudo-MI in custom inserter.
llvm-svn: 93467
2010-01-14 22:09:11 +00:00
Dale Johannesen
7b7109e16e Fix a comment.
llvm-svn: 93463
2010-01-14 21:50:17 +00:00
Eric Christopher
013342ad23 Few minor changes that were requested. No functional change.
llvm-svn: 93462
2010-01-14 21:48:00 +00:00
Jim Grosbach
fb10749b6d Add comment explaining the necessity of r93456
llvm-svn: 93459
2010-01-14 21:38:31 +00:00
Chris Lattner
ceabb11a5e prune #includes in TargetAsmParser.h
Pass in SMLoc of instr opcode into ParseInstruction.
Make AsmToken be a class, not a struct.

llvm-svn: 93457
2010-01-14 21:32:45 +00:00
Jim Grosbach
d3d283dc19 Dwarf EH prepare needs to be run after SjLj prepare. Otherwise,
catch info can get misplaced when a selector ends up more than one block
removed from the parent invoke(s). This could happen when a landing pad is
shared by multiple invokes and is also a target of a normal edge from
elsewhere.

llvm-svn: 93456
2010-01-14 21:22:16 +00:00
Chris Lattner
c0321eb1aa introduce MCParsedAsmOperand
llvm-svn: 93455
2010-01-14 21:21:40 +00:00
Chris Lattner
001a94a0e3 introduce the MCParsedAsmOperand class.
llvm-svn: 93454
2010-01-14 21:20:55 +00:00
Evan Cheng
595cdb7091 Small tweak to inline cost computation. Ext of i/fcmp results are mostly optimized away in codegen.
llvm-svn: 93453
2010-01-14 21:04:31 +00:00
Anton Korobeynikov
d7f6117539 Remove spurious semicolon.
Patch by Diego Iastrubni!

llvm-svn: 93450
2010-01-14 20:19:51 +00:00
Victor Hernandez
ff4f0aa119 In debug builds, assert that function-local metadata has only 1 parent function
llvm-svn: 93449
2010-01-14 20:12:34 +00:00
Eric Christopher
b2708c4ba1 Reduce the inlining cost of functions that contain calls to easily,
and frequently optimized functions.

llvm-svn: 93448
2010-01-14 20:12:34 +00:00
Victor Hernandez
23d77b1e51 Simplify code that chooses when to enumerate function-local metadata operands
llvm-svn: 93446
2010-01-14 19:54:11 +00:00