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8675 Commits

Author SHA1 Message Date
Chris Lattner
37020ccf48 switch ConstantFP emission to use MCStreamer, significantly 
simplifying the code.

llvm-svn: 93988
 2010-01-20 06:53:37 +00:00
Chris Lattner
45eeffcc2a make mcasmstreamer handle expanding 8 byte integer constants to 
4-byte constants if .quad isn't supported.  Switch a bunch of
methods used by the dwarf writer to use OutStreamer.EmitIntValue.

llvm-svn: 93987
 2010-01-20 06:45:39 +00:00
Chris Lattner
38caaf14c1 give createAsmStreamer an 'isLittleEndian' argument. 
llvm-svn: 93986
 2010-01-20 06:39:07 +00:00
Devang Patel
7771b7c621 If a instruction belongs to another function (and not current function) as per debug info attached with the instruction then ignore the dangling lexical scope of this instruction. Such scopes are unreachable. 
llvm-svn: 93967
 2010-01-20 02:05:23 +00:00
David Greene
3b2a68ceb8 Add some asserts to check SelectionDAG problems earlier. 
llvm-svn: 93960
 2010-01-20 00:59:23 +00:00
Dale Johannesen
91970b4ea2 Move findDebugLoc somewhere more central. Fix 
more cases where debug declarations affect
debug line info.

llvm-svn: 93953
 2010-01-20 00:19:24 +00:00
Dan Gohman
954f49014d 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
Chris Lattner
eaef5e111d simplify the rest of fp constant printing. 
llvm-svn: 93929
 2010-01-19 22:16:33 +00:00
Chris Lattner
c70daf316e 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
e8800b8d7c Identify predicate and optional-def operands when printing machine 
instructions.

llvm-svn: 93925
 2010-01-19 22:08:34 +00:00
Chris Lattner
ecaf0dcbc6 eliminate AsmPrinter::EmitZeros: just use MCStreamer directly. 
llvm-svn: 93918
 2010-01-19 21:51:22 +00:00
Benjamin Kramer
f007697c56 Update CMake list. 
llvm-svn: 93905
 2010-01-19 20:59:04 +00:00
David Greene
f1c7388b29 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
Chris Lattner
c35681b298 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
bf43525a29 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
fefcb1531c 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
ed89f60f5e 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
9c31b0c695 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
04770f2aa1 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
3024e9813e 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
cd2915e467 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
018b29b039 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
1083b5fc3f Avoid including DebugInfo.h in AsmPrinter.h 
llvm-svn: 93864
 2010-01-19 06:09:04 +00:00
Chris Lattner
95b98959b0 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
282466abf7 factor this code better. 
llvm-svn: 93859
 2010-01-19 05:51:42 +00:00
Chris Lattner
c7a062d187 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
6a160517a0 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
e9d28b19cf 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
Devang Patel
fe189e65d7 Revert accident check-in from r93165. 
llvm-svn: 93832
 2010-01-19 01:26:02 +00:00
Dale Johannesen
a3db6ef9a2 Revert 93811 per request. 
llvm-svn: 93818
 2010-01-19 00:10:52 +00:00
Dale Johannesen
0c90d43b70 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
Evan Cheng
88b65bc835 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
Bill Wendling
a73e471c62 - 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
Chris Lattner
c8f7717808 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
8b5d55ed06 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
b4ffc894e6 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
4d128a2387 Switch some functions to take Twines, eliminate uses of StringExtras.h. 
llvm-svn: 93680
 2010-01-17 07:46:39 +00:00
Nate Begeman
660d979ad9 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
dd6ddd1aeb 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
Chris Lattner
f62e3ee8c5 move the mangler into libtarget from vmcore. 
llvm-svn: 93664
 2010-01-16 21:57:06 +00:00
Chris Lattner
1376b02a17 reapply the mangler gutting patch. 
llvm-svn: 93656
 2010-01-16 21:08:46 +00:00
Chris Lattner
d3b1808876 unbreak the build. 
llvm-svn: 93654
 2010-01-16 20:53:11 +00:00
Rafael Espindola
9794fdfab0 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
8b27547d6d 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
06d45f6e75 Change DIEObjectLabel to take an MCSymbol instead of std::string. 
llvm-svn: 93647
 2010-01-16 18:50:28 +00:00
Chris Lattner
555ceabe64 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
8a1f23af11 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
Devang Patel
814b7e7488 No need to use WeakVH here. 
llvm-svn: 93631
 2010-01-16 06:17:40 +00:00
Devang Patel
c0e17df3ce Replace DebugLocTuple with DILocation. 
llvm-svn: 93630
 2010-01-16 06:09:35 +00:00
Chris Lattner
32c9512132 remove a couple of actively incorrect uses of getMangledName. 
llvm-svn: 93627
 2010-01-16 02:16:09 +00:00