Commit Graph

13323 Commits

Author SHA1 Message Date
Devang Patel
94541efd92 Global variable does not need linkage name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121212 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-08 00:06:22 +00:00
Devang Patel
48f17ba2a6 Add support to create local variable's debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121211 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 23:58:00 +00:00
Rafael Espindola
4f4363a490 Layout each section independently. With the testcase in PR8711:
before:
        4 assembler - Number of assembler layout and relaxation steps
    78563 assembler - Number of emitted assembler fragments
  8693904 assembler - Number of emitted object file bytes
   271223 assembler - Number of evaluated fixups
330771677 assembler - Number of fragment layouts
     5958 assembler - Number of relaxed instructions
  2508361 mcexpr    - Number of MCExpr evaluations

real	0m26.123s
user	0m25.694s
sys	0m0.388s

after:

      4 assembler - Number of assembler layout and relaxation steps
  78563 assembler - Number of emitted assembler fragments
8693904 assembler - Number of emitted object file bytes
 271223 assembler - Number of evaluated fixups
 231507 assembler - Number of fragment layouts
   5958 assembler - Number of relaxed instructions
2508361 mcexpr    - Number of MCExpr evaluations

real	0m2.500s
user	0m2.113s
sys	0m0.273s

And yes, the outputs are identical :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121207 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 23:32:26 +00:00
Devang Patel
fe58f95f36 Add support to create variables, structs etc.. using DIBuilder.
This is still work in progress.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121205 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 23:25:47 +00:00
Jakob Stoklund Olesen
da2fdcbb63 Fix begin() and end() on const IntervalMap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121200 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 23:18:43 +00:00
Michael J. Spencer
1ff657312e Missed a spot removing Alarm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121161 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 18:50:33 +00:00
Michael J. Spencer
c20beb9cc5 Support: Remove Alarm. It is unused (via local grep and google code search).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121160 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 18:41:59 +00:00
Michael J. Spencer
12ccf67457 Support/PathV2: Remove const from bool return types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121157 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 18:12:07 +00:00
Michael J. Spencer
6511988cd4 Fix spelling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121156 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 18:11:54 +00:00
Michael J. Spencer
a35c1b9431 Support: Remove DynamicLinker.h. It is unused and unimplemented.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121155 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 18:11:38 +00:00
Michael J. Spencer
5029159fbe Support/PathV2: Change most functions in the path namespace to return their work
via their return value instead of an out parameter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121149 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 17:04:04 +00:00
Jay Foad
40f8f6264d PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() and
zextOrTrunc(), and APSInt methods extend(), extOrTrunc() and new method
trunc(), to be const and to return a new value instead of modifying the
object in place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121120 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 08:25:19 +00:00
Michael J. Spencer
936671b2ea Support/PathV2: Remove the error_code return type from all functions in the path
namespace. None of them return anything except for success anyway. These will be
converted to returning their result soon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121109 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 03:57:37 +00:00
Michael J. Spencer
ee271d8758 Support/PathV2: Move make_absolute from path to fs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121108 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 03:57:17 +00:00
Michael J. Spencer
ad8a14f24e Support/PathV2: Clarify and correct documentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121091 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 01:23:08 +00:00
Michael J. Spencer
1522fce477 Support/PathV2: Move current_path from path to fs and fix the Unix implementation.
Unix bug spotted by Dan Gohman.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121090 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 01:22:31 +00:00
Rafael Espindola
85f2ecc697 Sorry for such a large commit. The summary is that only MachO cares about the
actuall addresses in a .o file, so it is better to let the MachO writer compute
it.

This is good for two reasons. First, areas that shouldn't care about
addresses now don't have access to it. Second, the layout of each section
is independent. I should use this in a subsequent commit to speed it up.

Most of the patch is just removing the section address computation. The two
interesting parts are the change on how we handle padding in the end
of sections and how MachO can get the address of a-b when a and b are in
different sections.

Since now the expression evaluation normally doesn't know the section address,
it will think that a-b needs relocation and let the MachO writer know. Once
it has computed the section addresses, it calls back the expression evaluation
with the section addresses to resolve these expressions.

The remaining problem is the handling of padding. Currently it will create
a special alignment fragment at the end. Since that fragment doesn't update
the alignment of the section, it needs the real address to be computed.

Since now the layout will not compute a-b with a and b in different sections,
the only effect that the special alignment fragment has is update the
address size of the section. This can also be done by the MachO writer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121076 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 00:27:36 +00:00
Rafael Espindola
22373b230a Use references to simplify the code a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121050 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 22:30:54 +00:00
Rafael Espindola
179821ac1f Remove the instruction fragment to data fragment lowering since it was causing
freed data to be read. I will open a bug to track it being reenabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121028 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 19:08:48 +00:00
Rafael Espindola
0bbe0b440e Second try at making direct object emission produce the same results
as llc + llvm-mc. This time ELF is not changed and I tested that llvm-gcc
bootstrap on darwin10 using darwin9's assembler and linker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121006 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 17:27:56 +00:00
Rafael Espindola
6d86492f5e Revert previous two patches while I try to find out how to make both
linux and darwin assemblers happy :-(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121004 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 15:35:15 +00:00
Rafael Espindola
2303c9dd69 Add an EmitAbsValue helper method and use it in cases where we want to be sure
that no relocations are used (on MochO).
Fixes llc producing different output from llc + llvm-mc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121000 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 14:53:14 +00:00
Frits van Bommel
03a83a3f41 Fix clang warning: "extra ';' inside a class [-pedantic]".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120998 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 10:48:11 +00:00
Michael J. Spencer
753cbbbd3c Support/FileSystem: Add directory_iterator implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120989 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 04:28:42 +00:00
Michael J. Spencer
e99bbd9ac3 Support/ADT: Move c_str() from SmallString to SmallVectorImpl. The Windows PathV2
implementation needs it for wchar_t and SmallVectorImpl in general.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120984 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 04:27:42 +00:00
Rafael Espindola
f8803fe417 Remove the getAddress getter, initialize Ordinal in the constructor and use
that on the ELF writer to detect a section we created.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120981 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 03:48:09 +00:00
Rafael Espindola
ffd902bfb7 Add a getSymbolOffset method and use it in the ELF writer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120977 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 02:57:26 +00:00
Chris Lattner
cc10244d77 Fix PR8728, a miscompilation I recently introduced. When optimizing
memcpy's like:
  memcpy(A, B)
  memcpy(A, C)

we cannot delete the first memcpy as dead if A and C might be aliases.
If so, we actually get:

  memcpy(A, B)
  memcpy(A, A)

which is not correct to transform into:

  memcpy(A, A)

This patch was heavily influenced by Jakub Staszak's patch in PR8728, thanks
Jakub!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120974 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 01:48:06 +00:00
Chris Lattner
72c194a8be add a helper method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120973 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 01:01:28 +00:00
Rafael Espindola
db74aeadcd Remember the contents of leb and dwarfline fragments when relaxing. This avoids
having to evaluate the expression again when writing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120920 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04 21:58:52 +00:00
Benjamin Kramer
fd6d53fbad APInt: microoptimize a few methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120912 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04 18:05:36 +00:00
Benjamin Kramer
bd7d2622a2 Simplify APInt::getAllOnesValue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120911 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04 16:37:47 +00:00
Rafael Espindola
5d4918dbd1 There are two reasons why we might want to use
foo = a - b
.long foo
instead of just
.long a - b

First, on darwin9 64 bits the assembler produces the wrong result. Second,
if "a" is the end of the section all darwin assemblers (9, 10 and mc) will not
consider a - b to be a constant but will if the dummy foo is created.

Split how we handle these cases. The first one is something MC should take care
of. The second one has to be handled by the caller.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120889 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04 03:21:47 +00:00
Michael J. Spencer
470ae13be8 Support/FileSystem: Add status implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120870 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04 00:32:40 +00:00
Michael J. Spencer
da3aaffcbb Support/SystemError: Make error_category and error_code auto-bool-conversion-safe.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120869 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04 00:32:24 +00:00
Rafael Espindola
767b1be390 Next step: Only pad debug_line when the target is darwin. Add a FIXME to avoid
doing that if the target is darwin10 or newer.

This fixes
*) Direct object emission was producing objects without the workaround on
   darwin9.
*) Assembly printing was producing objects with the workaround on linux.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120866 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04 00:31:13 +00:00
Jakob Stoklund Olesen
7a26aca73f Add IntervalMap::iterator::set{Start,Stop,Value} methods that allow limited
editing of the current interval.

These methods may cause coalescing, there are corresponding set*Unchecked
methods for editing without coalescing. The non-coalescing methods are useful
for applying monotonic transforms to all keys or values in a map without
accidentally coalescing transformed and untransformed intervals.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120829 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03 19:02:00 +00:00
Michael J. Spencer
db04b39dad Support/FileSystem: Fix MinGW build. It doesn't have _chsize_s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120826 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03 18:48:56 +00:00
Frits van Bommel
af72c62d4b Fix paste-o in ExtractValueInst::getIndexedType() comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120804 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03 14:54:33 +00:00
Eric Christopher
481d402ab0 Apparently OS X 10.4 doesn't have __crashreporter_info__.
Try to fix building on the wayback machine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120801 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03 07:45:22 +00:00
Rafael Espindola
2df042cb32 Make EmitIntValue more efficient and more like what we do for leb128. The
difference is much smaller (about 0.3s) but significant.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120787 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03 02:54:21 +00:00
Michael J. Spencer
3cb84ef65d Support/FileSystem: Add unique_file and exists implementations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120776 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03 01:21:28 +00:00
Michael J. Spencer
f4e7b167a0 Support/FileSystem: Remove temp_directory_path.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120775 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03 01:21:04 +00:00
Chris Lattner
8d64989275 clarify comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120772 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03 01:11:13 +00:00
Rafael Espindola
32a006e606 Try to resolve symbol differences early, and if successful create a plain
data fragment. This reduces the time to assemble the test in 8711 from 60s to
54s.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120767 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03 00:55:40 +00:00
Devang Patel
5113cdbfff It may not be an option to skip .debug_line if there are file reference in already emitted debug info. So, for now, emit dummy line table entry to make older linker and assemblers happy. This is not a new behavior, original AsmPrinter emitted similar line table entries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120760 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03 00:10:48 +00:00
Devang Patel
ee4854faf3 Use set directive for StartMinusEndExpr.
This is a fix for llvm-gcc-i386-darwin9 buildbot failure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120742 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02 21:32:30 +00:00
Rafael Espindola
e23930543c Move EmitValueToOffset to the ObjectStreamer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120691 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02 05:59:38 +00:00
Rafael Espindola
dedb045c32 Add EmitInstToFragment to the generic object streamer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120690 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02 05:44:06 +00:00
Rafael Espindola
6db8a9f3fa The sections that the ELF object writer has to create are very simple and
contain only data. Handle them specially instead of using AddSectionToTheEnd.
This moves a hack from the generic assembler to the elf writer. It is also
a bit faster and should make other improvements easier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120683 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02 03:09:06 +00:00