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Commit Graph

4329 Commits

Author SHA1 Message Date
Benjamin Kramer
9fc7b995f2 Remove byte order mark from source file.
llvm-svn: 188066
2013-08-09 10:31:14 +00:00
Saleem Abdulrasool
7fcd7a910a [CodeGen] prevent abnormal on invalid attributes
Currently, when an invalid attribute is encountered on processing a .s file,
clang will abort due to llvm_unreachable.  Invalid user input should not cause
an abnormal termination of the compiler.  Change the interface to return a
boolean to indicate the failure as a first step towards improving hanlding of
malformed user input to clang.

Signed-off-by: Saleem Abdulrasool <compnerd@compnerd.org>
llvm-svn: 188047
2013-08-09 01:52:03 +00:00
Bill Wendling
77b4e94913 Revert r185882. This is causing problems with the gold linker and might be better handled by the linker.
llvm-svn: 188029
2013-08-08 23:51:04 +00:00
Michael J. Spencer
8cdf1cca41 [Object] Split the ELF interface into 3 parts.
* ELFTypes.h contains template magic for defining types based on endianess, size, and alignment.
* ELFFile.h defines the ELFFile class which provides low level ELF specific access.
* ELFObjectFile.h contains ELFObjectFile which uses ELFFile to implement the ObjectFile interface.

llvm-svn: 188022
2013-08-08 22:27:13 +00:00
Shuxin Yang
a9213839b0 Change public functions of LTOCodeGenerator from ret-false-on-succ to ret-true-on-succ.
As of this revision, all functions of LTOCodeGenerator are consistent in
ret-true-on-succ.

Tested on multiple OSes.

llvm-svn: 187864
2013-08-07 05:19:23 +00:00
Shuxin Yang
56f449f42c Change private functions of LTOCodeGenerator from ret-false-on-succ to ret-true-on-succ.
llvm-svn: 187819
2013-08-06 21:51:21 +00:00
Tom Stellard
e4e3be6f50 Factor FlattenCFG out from SimplifyCFG
Patch by: Mei Ye

llvm-svn: 187764
2013-08-06 02:43:45 +00:00
Shuxin Yang
2ee8d113cd Add some comment to LTOCodeGenerator class
llvm-svn: 187761
2013-08-06 00:45:32 +00:00
Michael Gottesman
9c47125a1e [bugpoint] Allow the user to specify the path to opt on the commandline.
llvm-svn: 187739
2013-08-05 21:07:07 +00:00
Benjamin Kramer
0b676328e8 Unbreak llvm-rtdyld build.
llvm-svn: 187699
2013-08-03 22:18:45 +00:00
Benjamin Kramer
d754c9514d llvm-rtdyld: Don't leak memory managers.
Dyld never outlives MemMgr, just put both on the stack.

llvm-svn: 187697
2013-08-03 22:16:31 +00:00
Hal Finkel
0047fe7d03 Fix invalid function pointers in bugpoint ExtractLoops
The ExtractLoops function tries to reduce the failing test case by extracting
one or more loops from the misoptimized piece of the program. In doing this,
ExtractLoops must keep the MiscompiledFunctions vector up-to-date by ensuring
that the pointers refer to functions in the current failing program.
Unfortunately, this is not trivial because:

 - ExtractLoops is iterative, and there are several early exits (and the
   MiscompiledFunctions vector must be consistent with the current program at
every non-fatal exit point).
 - Several of the utility functions used by ExtractLoops (such as
   TestOptimizer, some of which are called through the TestFn callback
parameter, and Linker::LinkModules) delete their inputs upon success.

This change adds several updates of the MiscompiledFunctions vector at
different points. The first is after the initial call to TestMergedProgram
which checks that the loop-extracted program still works. The second is after
the call to TestFn (TestOptimizer, for example). This function will delete its
inputs (which is why the existing ExtractLoops logic cloned the inputs first).

llvm-svn: 187674
2013-08-02 21:13:42 +00:00
Eric Christopher
f68df99874 Use @rpath for libraries rather than @executable_path on OSX.
Patch by Benjamin Scarlet!

llvm-svn: 187641
2013-08-02 01:51:52 +00:00
Bill Wendling
e7b7059f1d Use function attributes to indicate that we don't want to realign the stack.
Function attributes are the future! So just query whether we want to realign the
stack directly from the function instead of through a random target options
structure.

llvm-svn: 187618
2013-08-01 21:42:05 +00:00
Rafael Espindola
ca0a1505ba Add support for the 's' operation to llvm-ar.
If no other operation is specified, 's' becomes an operation instead of an
modifier. The s operation just creates a symbol table. It is the same as
running ranlib.

We assume the archive was created by a sane ar (like llvm-ar or gnu ar) and
if the symbol table is present, then it is current. We use that to optimize
the most common case: a broken build system that thinks it has to run ranlib.

llvm-svn: 187353
2013-07-29 12:40:31 +00:00
Tom Stellard
8e98bf332b SimplifyCFG: Use parallel-and and parallel-or mode to consolidate branch conditions
Merge consecutive if-regions if they contain identical statements.
Both transformations reduce number of branches.  The transformation
is guarded by a target-hook, and is currently enabled only for +R600,
but the correctness has been tested on X86 target using a variety of
CPU benchmarks.

Patch by: Mei Ye

llvm-svn: 187278
2013-07-27 00:01:07 +00:00
Rafael Espindola
32f9d6abe2 Remove the mblaze backend from llvm.
Approval in here http://lists.cs.uiuc.edu/pipermail/llvmdev/2013-July/064169.html

llvm-svn: 187145
2013-07-25 18:55:05 +00:00
Bill Wendling
a61c3eb016 Replace the "NoFramePointerElimNonLeaf" target option with a function attribute.
There's no need to specify a flag to omit frame pointer elimination on non-leaf
nodes...(Honestly, I can't parse that option out.) Use the function attribute
stuff instead.

llvm-svn: 187093
2013-07-25 00:34:29 +00:00
Rafael Espindola
f3a9f67eee Split getOpenFile into getOpenFile and getOpenFileSlice.
The main observation is that we never need both the filesize and the map size.
When mapping a slice of a file, it doesn't make sense to request a null
terminator and that would be the only case where the filesize would be used.

There are other cleanups that should be done in this area:

* A client should not have to pass the size (even an explicit -1) to say if
  it wants a null terminator or not, so we should probably swap the argument
  order.
* The default should be to not require a null terminator. Very few clients
  require this, but many end up asking for it just because it is the default.

llvm-svn: 186984
2013-07-23 20:25:01 +00:00
Rafael Espindola
8f45894865 Fix use of the getOpenFile api.
The gold plugin was passing the desired map size as the file size. This was
working for two reasons:
* Recent version of gold provide the get_view callback, so this code was not
  used.
* In older versions, getOpenFile was called, but the file size is never used
  if we don't require null terminated buffers and map size defaults to the
  file size.

Thanks to Eli Bendersky for noticing this.

I will try to make this api a bit less error prone.

llvm-svn: 186978
2013-07-23 18:44:31 +00:00
Rafael Espindola
bc0d1fb30f Fix the build in c++03 mode.
llvm-svn: 186935
2013-07-23 11:02:16 +00:00
Rafael Espindola
081f6f185f Add an initial implementation of archive symbol table generation.
The symbol table has forward references in the file. Instead of allocating
a temporary buffer or counting the size and then writing, this implementation
writes a dummy value first and patches it once the final value is known.

There is room for performance improvement. I will implement them as soon as I
get some other features (like a ranlib mode) in.

llvm-svn: 186934
2013-07-23 10:47:01 +00:00
Shuxin Yang
dcc00fd59f remove unnecessary space
llvm-svn: 186931
2013-07-23 06:44:34 +00:00
Bill Wendling
63482ebdd5 Recommit r186217 with testcase fix:
Use the function attributes to pass along the stack protector buffer size.

 Now that we have robust function attributes, don't use a command line option to
 specify the stack protecto buffer size.

llvm-svn: 186863
2013-07-22 20:15:21 +00:00
Shuxin Yang
1e13d52088 Initialize/Register LTO passes to enable flags like -print-after=<lto-pass>
There already have two "dead" functions, initialize{IPO|IPA}, defined for 
similar purpose. I decide not to call these two functions for two reasons:
  o. they don't cover all LTO passes (which will soon be separated into IPO 
     and post-IPO passes)
  o. We have not yet figured out the right passes and the ordering for IPO 
     and post-IPO stages, meaning this change is only for the time being.

Since LTO passes are registered, we are now able to print IR before and 
after particular point.

For OSX users:
--------------
  "...-Wl,-mllvm -Wl,-print-after=<pass-name>" will print IR after the
  specified pass.

For Other UNIX with GNU gold linker:
------------------------------------
  "-Wl,-plugin-opt=-print-after=<pass-name>" should work.
  (NOTE: no need for "-Wl,-mllvm")

  Strip "-Wl," if flags are fed directly to linker instead of clang/clang++.

llvm-svn: 186853
2013-07-22 18:40:34 +00:00
Rafael Espindola
9cfbdad631 Replace archive members in the old position.
This matches gnu archive behavior and since archive member order can change
which member is used, not changing the order on replacement looks like the
right thing to do.

This patch also refactors the logic for which archive member to keep and
whether to move it to a helper function (computeInsertAction). The
nesting in computeNewArchiveMembers was getting a bit confusing.

llvm-svn: 186829
2013-07-22 15:11:51 +00:00
Rafael Espindola
c2acfa8f64 Handle replacement into a position past the original member.
We were incorrectly computing where to insert a member if it was replacing
a previous member that was before the insert point.

llvm-svn: 186792
2013-07-21 12:58:07 +00:00
Rui Ueyama
f2baef0d6e Retry submitting r186623: COFFDumper: Dump data directory entries.
The original change was rolled back in r186627 because of test
failures on the big endian machine. I believe I fixed the issue
so re-submitting.

llvm-svn: 186734
2013-07-19 23:23:29 +00:00
Rafael Espindola
e054c779bd Fix inserting new elements in a specified location.
We were only handling the 'a' and 'b' options during moves before.

llvm-svn: 186721
2013-07-19 21:23:28 +00:00
Tim Northover
e32cf92e38 Improve llvm-mc disassembler mode and refactor ARM tests to use it
This allows "llvm-mc -disassemble" to accept two new features:
  + Using comma as a byte separator
  + Grouping bytes with '[' and ']' pairs.

The behaviour outside a [...] group is unchanged. But within the group once
llvm-mc encounters a true error, it stops rather than trying to resynchronise
the stream at the next byte. This is more useful for disassembly tests, where
we have an almost-instruction in mind and don't care what the misaligned
interpretation would be. Particularly if it means llvm-mc won't actually see
the next intended almost-instruction.

As a side effect, this means llvm-mc can disassemble its own -show-encoding
output if copy-pasted.

llvm-svn: 186661
2013-07-19 10:05:04 +00:00
Rui Ueyama
a76fe75d32 Revert "COFFDumper: Dump data directory entries."
Because it broke s390x and ppc64-linux buildbots. This reverts commit r186623.

llvm-svn: 186627
2013-07-18 23:15:50 +00:00
Rui Ueyama
f7419da108 COFFDumper: Dump data directory entries.
Summary:
Dump optional data directory entries in the PE/COFF header, so that
we can test the output of LLD linker. This patch updates the test binary
file, but the source of the binary is the same. I just re-linked the file.
I don't know how the previous file was linked, but the previous file did
not have any data directory entries for some reason.

Reviewers: rafael

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1148

llvm-svn: 186623
2013-07-18 22:44:20 +00:00
NAKAMURA Takumi
d1d48ff2e9 llvm-ar: doExtract(): Write extracted files with F_Binary. It should fix llvm/test/Object/extract.ll
llvm-svn: 186503
2013-07-17 12:31:50 +00:00
NAKAMURA Takumi
ade122d371 LLVMSymbolize.cpp: Fix build. Triple::ArchType is not a namespace.
llvm-svn: 186494
2013-07-17 06:53:51 +00:00
Alexey Samsonov
5256cb6f86 llvm-symbolizer: be more careful with colons in file names
llvm-svn: 186493
2013-07-17 06:45:36 +00:00
Rafael Espindola
2a9326a78f Add a wrapper for open.
This centralizes the handling of O_BINARY and opens the way for hiding more
differences (like how open behaves with directories).

llvm-svn: 186447
2013-07-16 19:44:17 +00:00
Rafael Espindola
77c12b390e On error, close the temporary file descriptor.
With this change llvm-ar can remove the temporary file on windows too.

llvm-svn: 186423
2013-07-16 16:00:32 +00:00
Rafael Espindola
24973f2b99 Use open+fstat instead of stat+open.
llvm-svn: 186381
2013-07-16 03:34:31 +00:00
Rafael Espindola
25c838d63e Remember that we have a null terminated string.
This is a micro optimization. Instead of going char*->StringRef->Twine->char*,
go char*->Twine->char* and avoid having to copy the filename on the stack.

llvm-svn: 186380
2013-07-16 03:30:10 +00:00
Rafael Espindola
5910a296f4 Try to open the file before use data from stat.
Looks like on mingw we get bogus last modification times on directories.
Should fix the mingw bots.

llvm-svn: 186240
2013-07-13 05:07:22 +00:00
Rafael Espindola
a4d4dfc5bc Remove unused file. Thanks to Sean Silva for noticing it.
llvm-svn: 186239
2013-07-13 04:24:33 +00:00
Rafael Espindola
9e9a37033b Add r186216 back, but make the test tolerant of different uids and gids.
original message:
Fix a off by one error about which members need to use the string table.

llvm-svn: 186238
2013-07-13 04:14:13 +00:00
Chandler Carruth
c0b3faf509 Revert commit r186217 -- this is breaking bots:
http://lab.llvm.org:8013/builders/clang-x86_64-darwin11-nobootstrap-RAincremental/builds/4328

Original commit log:
  Use the function attributes to pass along the stack protector buffer
  size.

llvm-svn: 186234
2013-07-13 01:00:17 +00:00
Chandler Carruth
40918c60f8 Revert commit r186216 -- it's breaking bots:
http://lab.llvm.org:8011/builders/clang-x86_64-debian-fast/builds/6897/steps/check-all/logs/LLVM%3A%3Aarchive-format.test

Original commit log:
  Fix a off by one error about which members need to use the string
  table.

llvm-svn: 186232
2013-07-13 00:42:56 +00:00
Bill Wendling
c4d489b5ee Use the function attributes to pass along the stack protector buffer size.
Now that we have robust function attributes, don't use a command line option to
specify the stack protecto buffer size.

llvm-svn: 186217
2013-07-12 22:25:20 +00:00
Rafael Espindola
d955e6ac00 Fix a off by one error about which members need to use the string table.
llvm-svn: 186216
2013-07-12 22:22:34 +00:00
Rafael Espindola
73b6b97cfa fix autoconf build
llvm-svn: 186200
2013-07-12 20:45:01 +00:00
Rafael Espindola
d64177a6d0 Fix the build with c++03.
llvm-svn: 186198
2013-07-12 20:28:02 +00:00
Rafael Espindola
6c3ac6c001 Change llvm-ar to use lib/Object.
This fixes two bugs is lib/Object that the use in llvm-ar found:
* In OS X created archives, the name can be padded with nulls. Strip them.
* In the constructor, remember the first non special member and use that in
  begin_children. This makes sure we skip all special members, not just the
  first one.

The change to llvm-ar itself consist of
* Using lib/Object for reading archives instead of ArchiveReader.cpp.
* Writing the modified archive directly, instead of creating an in memory
  representation.

The old Archive library was way more general than what is needed, as can
be seen by the diffstat of this patch.

Having llvm-ar using lib/Object now opens the way for creating regular symbol
tables for both native objects and bitcode files so that we can use those
archives for LTO.

llvm-svn: 186197
2013-07-12 20:21:39 +00:00
Rafael Espindola
4de1314777 Add static.
llvm-svn: 186170
2013-07-12 16:29:27 +00:00