Commit Graph

4067 Commits

Author SHA1 Message Date
Andrew Kaylor
710cb0c782 Add support for source and line information to IntelJITEventListener for object emitted by MCJIT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173712 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28 19:52:37 +00:00
Michael Gottesman
24c4898973 Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173647 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28 01:35:51 +00:00
Andrew Kaylor
e27a787760 Add DIContext::getLineInfoForAddressRange() function and test. This function allows a caller to obtain a table of line information for a function using the function's address and size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173537 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26 00:28:05 +00:00
Andrew Kaylor
ee7c0d2f93 Add support for applying in-memory relocations to the .debug_line section and, in the case of ELF files, using symbol addresses when available for relocations to the .debug_info section. Also extending the llvm-rtdyld tool to add the ability to dump line number information for testing purposes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173517 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25 22:50:58 +00:00
Eli Bendersky
a965baca3c When encountering an unknown file format, ObjectFile::createObjectFile should
politely report it instead of running into llvm_unreachable.

Also patch llvm-dwarfdump to actually check whether the file it's attempting to
dump is a valid object file.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173489 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25 20:53:41 +00:00
Eli Bendersky
939a4e8b69 Add command-line flags for DWARF dumping.
Flags for dumping specific DWARF sections added in lib/DebugInfo and
llvm-dwarfdump.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173480 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25 20:26:43 +00:00
Eli Bendersky
172d5978c8 Rename variable to be more comprehensible and follow naming convention
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173460 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25 17:06:42 +00:00
Saleem Abdulrasool
ed7fcf4fd9 [bugpoint] make tool selection messages unique
Change messages to help identify which interpreter was actually selected (safe
vs testing).

Signed-off-by: Saleem Abdulrasool <compnerd@compnerd.org>
Reviewed-by: Chandler Carruth <chandlerc@gmail.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173360 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24 16:49:14 +00:00
Saleem Abdulrasool
78d3097263 [bugpoint] set Message after tool configuration
Set the message returned after the GCC runner has been constructed as otherwise
the message will be overwritten by the construction of the runner, resulting in
misleading messages.

Signed-off-by: Saleem Abdulrasool <compnerd@compnerd.org>
Reviewed-by: Chandler Carruth <chandlerc@gmail.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173359 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24 16:49:12 +00:00
NAKAMURA Takumi
5bac013d61 lli/RecordingMemoryManager: Free allocated sections in the destructor to satisfy --vg-leak!
FIXME: It could be generalized in MemoryManager.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173349 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24 14:12:12 +00:00
Alexey Samsonov
c4c7ea3184 llvm-symbolizer: factor out bits of the tool into separate LLVMSymbolize.{h,cpp} files. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173159 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-22 14:21:19 +00:00
Tim Northover
f65dc6e347 Fix missed out llvm-stress after APFloat change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173141 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-22 10:18:26 +00:00
NAKAMURA Takumi
7511aab27b [CMake] bugpoint-passes should not be built in "all", when LLVM_BUILD_TOOLS is OFF.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173112 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-22 01:44:00 +00:00
Jakub Staszak
3c8da314f1 Remove unneeded #include.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173088 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-21 21:02:47 +00:00
Chris Lattner
4156ca76e3 switch llvm-bcanalyzer onto the new cursor APIs, allowing deletion of
the old ReadRecord methods.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172952 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-20 02:50:32 +00:00
Chris Lattner
bc837200eb fix method name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172921 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-19 21:37:14 +00:00
Chandler Carruth
90230c8466 Sort all of the includes. Several files got checked in with mis-sorted
includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172891 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-19 08:03:47 +00:00
Daniel Dunbar
a94c339423 [MC/Mach-O] Add support for linker options in Mach-O files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172779 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-18 01:26:07 +00:00
Eli Bendersky
be2afb6408 Remove unneeded include and empty line
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172642 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16 19:42:16 +00:00
Kevin Enderby
75c9b9384f We want the dwarf AT_producer for assembly source files to match clang's
AT_producer.  Which includes clang's version information so we can tell
which version of the compiler was used.

This is the first of two steps to allow us to do that.  This is the llvm-mc
change to provide a method to set the AT_producer string.  The second step,
coming soon to a clang near you, will have the clang driver pass the value
of getClangFullVersion() via an flag when invoking the integrated assembler
on assembly source files.

rdar://12955296


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172630 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16 17:46:23 +00:00
Peter Collingbourne
fbb662f840 Introduce llvm::sys::getProcessTriple() function.
In r143502, we renamed getHostTriple() to getDefaultTargetTriple()
as part of work to allow the user to supply a different default
target triple at configure time.  This change also affected the JIT.
However, it is inappropriate to use the default target triple in the
JIT in most circumstances because this will not necessarily match
the current architecture used by the process, leading to illegal
instruction and other such errors at run time.

Introduce the getProcessTriple() function for use in the JIT and
its clients, and cause the JIT to use it.  On architectures with a
single bitness, the host and process triples are identical.  On other
architectures, the host triple represents the architecture of the
host CPU, while the process triple represents the architecture used
by the host CPU to interpret machine code within the current process.
For example, when executing 32-bit code on a 64-bit Linux machine,
the host triple may be 'x86_64-unknown-linux-gnu', while the process
triple may be 'i386-unknown-linux-gnu'.

This fixes JIT for the 32-on-64-bit (and vice versa) build on non-Apple
platforms.

Differential Revision: http://llvm-reviews.chandlerc.com/D254

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172627 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16 17:27:22 +00:00
Michael J. Spencer
ac97f5ce48 [Object][ELF] Simplify ELFObjectFile by using ELFType.
This simplifies the usage and implementation of ELFObjectFile by using ELFType
to replace:

<endianness target_endianness, std::size_t max_alignment, bool is64Bits>

This does complicate the base ELF types as they must now use template template
parameters to partially specialize for the 32 and 64bit cases. However these
are only defined once.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172515 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-15 07:44:25 +00:00
Nadav Rotem
1c1ff3b7ff LTO: Also init TTI for codegen passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172499 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-15 01:53:57 +00:00
Eli Bendersky
030f63a397 Expose an InitToTextSection through MCStreamer.
The aim of this patch is to fix the following piece of code in the
platform-independent AsmParser:

void AsmParser::CheckForValidSection() {
  if (!ParsingInlineAsm && !getStreamer().getCurrentSection()) {
    TokError("expected section directive before assembly directive");
    Out.SwitchSection(Ctx.getMachOSection(
                        "__TEXT", "__text",
                        MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
                        0, SectionKind::getText()));
  }
}

This was added for the "-n" option of llvm-mc.

The proposed fix adds another virtual method to MCStreamer, called
InitToTextSection. Conceptually, it's similar to the existing
InitSections which initializes all common sections and switches to
text. The new method is implemented by each platform streamer in a way
that it sees fit. So AsmParser can now do this:

void AsmParser::CheckForValidSection() {
  if (!ParsingInlineAsm && !getStreamer().getCurrentSection()) {
    TokError("expected section directive before assembly directive");
    Out.InitToTextSection();
  }
}

Which is much more reasonable.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172450 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-14 19:04:57 +00:00
Andrew Trick
a125cacf7d Added -view-callgraph module pass.
-dot-callgraph similarly follows a standard module pass pattern.

Patch by Speziale Ettore!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172220 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-11 17:28:14 +00:00
Dmitry Vyukov
fc183ceae3 llvm-symbolizer: add DATA command that allows to symbolize global variables.
Example:
>DATA bin/clang 0x26e8e40
<llvm::SparcSubTypeKV
<40799808 416
The last line is address and size of the object.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172180 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-11 07:16:20 +00:00
Michael J. Spencer
27b2b1b4e5 [llvm-objdump] Emit addresses with the correct number of leading 0's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172130 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10 22:40:50 +00:00
Jakub Staszak
446991dc34 Fix #includes after my last commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172114 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10 21:56:40 +00:00
Eli Bendersky
6c1d4972cf Add the align_to_end option to .bundle_lock in the MC implementation of aligned
bundling. The document describing this feature and the implementation has also
been updated:

https://sites.google.com/a/chromium.org/dev/nativeclient/pnacl/aligned-bundling-support-in-llvm


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171797 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07 21:51:08 +00:00
Chandler Carruth
3251e81d79 Move CallGraphSCCPass.h into the Analysis tree; that's where the
implementation lives already.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171746 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07 15:26:48 +00:00
Chandler Carruth
aeef83c6af Switch TargetTransformInfo from an immutable analysis pass that requires
a TargetMachine to construct (and thus isn't always available), to an
analysis group that supports layered implementations much like
AliasAnalysis does. This is a pretty massive change, with a few parts
that I was unable to easily separate (sorry), so I'll walk through it.

The first step of this conversion was to make TargetTransformInfo an
analysis group, and to sink the nonce implementations in
ScalarTargetTransformInfo and VectorTargetTranformInfo into
a NoTargetTransformInfo pass. This allows other passes to add a hard
requirement on TTI, and assume they will always get at least on
implementation.

The TargetTransformInfo analysis group leverages the delegation chaining
trick that AliasAnalysis uses, where the base class for the analysis
group delegates to the previous analysis *pass*, allowing all but tho
NoFoo analysis passes to only implement the parts of the interfaces they
support. It also introduces a new trick where each pass in the group
retains a pointer to the top-most pass that has been initialized. This
allows passes to implement one API in terms of another API and benefit
when some other pass above them in the stack has more precise results
for the second API.

The second step of this conversion is to create a pass that implements
the TargetTransformInfo analysis using the target-independent
abstractions in the code generator. This replaces the
ScalarTargetTransformImpl and VectorTargetTransformImpl classes in
lib/Target with a single pass in lib/CodeGen called
BasicTargetTransformInfo. This class actually provides most of the TTI
functionality, basing it upon the TargetLowering abstraction and other
information in the target independent code generator.

The third step of the conversion adds support to all TargetMachines to
register custom analysis passes. This allows building those passes with
access to TargetLowering or other target-specific classes, and it also
allows each target to customize the set of analysis passes desired in
the pass manager. The baseline LLVMTargetMachine implements this
interface to add the BasicTTI pass to the pass manager, and all of the
tools that want to support target-aware TTI passes call this routine on
whatever target machine they end up with to add the appropriate passes.

The fourth step of the conversion created target-specific TTI analysis
passes for the X86 and ARM backends. These passes contain the custom
logic that was previously in their extensions of the
ScalarTargetTransformInfo and VectorTargetTransformInfo interfaces.
I separated them into their own file, as now all of the interface bits
are private and they just expose a function to create the pass itself.
Then I extended these target machines to set up a custom set of analysis
passes, first adding BasicTTI as a fallback, and then adding their
customized TTI implementations.

The fourth step required logic that was shared between the target
independent layer and the specific targets to move to a different
interface, as they no longer derive from each other. As a consequence,
a helper functions were added to TargetLowering representing the common
logic needed both in the target implementation and the codegen
implementation of the TTI pass. While technically this is the only
change that could have been committed separately, it would have been
a nightmare to extract.

The final step of the conversion was just to delete all the old
boilerplate. This got rid of the ScalarTargetTransformInfo and
VectorTargetTransformInfo classes, all of the support in all of the
targets for producing instances of them, and all of the support in the
tools for manually constructing a pass based around them.

Now that TTI is a relatively normal analysis group, two things become
straightforward. First, we can sink it into lib/Analysis which is a more
natural layer for it to live. Second, clients of this interface can
depend on it *always* being available which will simplify their code and
behavior. These (and other) simplifications will follow in subsequent
commits, this one is clearly big enough.

Finally, I'm very aware that much of the comments and documentation
needs to be updated. As soon as I had this working, and plausibly well
commented, I wanted to get it committed and in front of the build bots.
I'll be doing a few passes over documentation later if it sticks.

Commits to update DragonEgg and Clang will be made presently.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171681 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07 01:37:14 +00:00
Michael J. Spencer
46418797cd [objdump] Use correct format specifiers and fix C++03 variadic warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171651 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-06 05:23:59 +00:00
Michael J. Spencer
b2c064c695 [objdump] Add --private-headers, -p.
This currently prints the ELF program headers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171649 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-06 03:56:49 +00:00
Chandler Carruth
b24ce3ec45 Fix another place where we build the TTI pass to the new interface.
Sorry for the noise here, 'make check' doesn't build this code. =/

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171623 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-05 11:54:35 +00:00
Chandler Carruth
7bdf6b00e0 Convert the TargetTransformInfo from an immutable pass with dynamic
interfaces which could be extracted from it, and must be provided on
construction, to a chained analysis group.

The end goal here is that TTI works much like AA -- there is a baseline
"no-op" and target independent pass which is in the group, and each
target can expose a target-specific pass in the group. These passes will
naturally chain allowing each target-specific pass to delegate to the
generic pass as needed.

In particular, this will allow a much simpler interface for passes that
would like to use TTI -- they can have a hard dependency on TTI and it
will just be satisfied by the stub implementation when that is all that
is available.

This patch is a WIP however. In particular, the "stub" pass is actually
the one and only pass, and everything there is implemented by delegating
to the target-provided interfaces. As a consequence the tools still have
to explicitly construct the pass. Switching targets to provide custom
passes and sinking the stub behavior into the NoTTI pass is the next
step.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171621 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-05 11:43:11 +00:00
Chandler Carruth
0b8c9a80f2 Move all of the header files which are involved in modelling the LLVM IR
into their new header subdirectory: include/llvm/IR. This matches the
directory structure of lib, and begins to correct a long standing point
of file layout clutter in LLVM.

There are still more header files to move here, but I wanted to handle
them in separate commits to make tracking what files make sense at each
layer easier.

The only really questionable files here are the target intrinsic
tablegen files. But that's a battle I'd rather not fight today.

I've updated both CMake and Makefile build systems (I think, and my
tests think, but I may have missed something).

I've also re-sorted the includes throughout the project. I'll be
committing updates to Clang, DragonEgg, and Polly momentarily.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-02 11:36:10 +00:00
Chandler Carruth
7f00f87767 Sort a few more #include lines in tools/... unittests/... and utils/...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171363 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-02 10:26:28 +00:00
Nadav Rotem
b338d897f9 Make opt grab the triple from the module and use it to initialize the target machine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171341 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-01 08:00:32 +00:00
Rafael Espindola
87b47ccc5a Use the generic dump template. Extracted from a patch by Sami Liedes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171305 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-31 16:53:01 +00:00
Rafael Espindola
fc73847d8f Dump sections. Extracted from a patch by Sami Liedes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171304 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-31 16:29:44 +00:00
Rafael Espindola
148ee4f224 Print a header above the symbols. Extracted from a patch by Sami Liedes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171302 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-31 16:05:21 +00:00
Rafael Espindola
ad784790ad Check for errors. Extracted from a patch by Sami Liedes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171301 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-31 15:45:31 +00:00
Rafael Espindola
1318e14f3e Fix indentation. Extracted from a patch by Sami Liedes!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171300 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-31 15:30:58 +00:00
Rafael Espindola
663cebc4ad Style fixes in llvm-readobj.cpp. Extracted from a patch by Sami Liedes!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171299 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-31 15:27:42 +00:00
Rafael Espindola
cef81b37c7 Add a function to get the segment name of a section.
On MachO, sections also have segment names. When a tool looking at a .o file
prints a segment name, this is what they mean. In reality, a .o has only one
anonymous, segment.

This patch adds a MachO only function to fetch that segment name. I named it
getSectionFinalSegmentName since the main use for the name seems to be inform
the linker with segment this section should go to.

The patch also changes MachOObjectFile::getSectionName to return just the
section name instead of computing SegmentName,SectionName.

The main difference from the previous patch is that it doesn't use
InMemoryStruct. It is extremely dangerous: if the endians match it returns
a pointer to the file buffer, if not, it returns a pointer to an internal buffer
that is overwritten in the next API call.

We should change all of this code to use
support::detail::packed_endian_specific_integral like ELF, but since these
functions only handle strings, they work with big and little endian machines
as is.

I have tested this by installing ubuntu 12.10 ppc on qemu, that is why it took
so long :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170838 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-21 03:47:03 +00:00
Eli Bendersky
4766ef41b3 Aligned bundling support. Following the discussion here:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2012-December/056754.html

The proposal and implementation are fully documented here:
https://sites.google.com/a/chromium.org/dev/nativeclient/pnacl/aligned-bundling-support-in-llvm

Tests will follow shortly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170718 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20 19:05:53 +00:00
Roman Divacky
6af228a92a Remove MCTargetAsmLexer and its derived classes now that edis,
its only user, is gone.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170699 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20 14:43:30 +00:00
Roman Divacky
759e3fa641 Remove edis - the enhanced disassembler. Fixes PR14654.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170578 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-19 19:55:47 +00:00
Rafael Espindola
cd7ee1ced0 Revert 170545 while I debug the ppc failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170547 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-19 14:48:05 +00:00
Rafael Espindola
f9a6bd8524 Add r170095 back.
I cannot reproduce it the failures locally, so I will keep an eye at the ppc
bots. This patch does add the change to the "Disassembly of section" message,
but that is not what was failing on the bots.

Original message:

Add a funciton to get the segment name of a section.

On MachO, sections also have segment names. When a tool looking at a .o file
prints a segment name, this is what they mean. In reality, a .o has only one
anonymous, segment.

This patch adds a MachO only function to fetch that segment name. I named it
getSectionFinalSegmentName since the main use for the name seems to be infor
the linker with segment this section should go to.

The patch also changes MachOObjectFile::getSectionName to return just the
section name instead of computing SegmentName,SectionName.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170545 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-19 14:15:04 +00:00