Commit Graph

87274 Commits

Author SHA1 Message Date
Evgeniy Stepanov
1e3b656be5 [msan] Instrument bswap intrinsic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169383 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 14:39:55 +00:00
Evgeniy Stepanov
1b3fcf94a4 [msan] Initialize callbacks in runOnFunction as opposed to doInitialization.
This mirrors the change in ASan & TSan done in r168864.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169378 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 13:14:33 +00:00
Evgeniy Stepanov
61cac0619a [msan] Change linkage type of __msan_track_origins.
LinkOnceODRLinkage globals may be removed in GlobalOpt if not used in the
current module.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169377 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 12:49:41 +00:00
Elena Demikhovsky
226e0e6264 Simplified BLEND pattern matching for shuffles.
Generate VPBLENDD for AVX2 and VPBLENDW for v16i16 type on AVX2.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169366 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 09:24:57 +00:00
Andrew Trick
eca1fcf3d2 RegisterPressure API. Add support for physical register units.
At build-time register pressure was always computed in terms of
register units. But the compile-time API was expressed in terms of
register classes because it was intended for virtual registers (and
physical register units weren't yet used anywhere in codegen).

Now that the codegen uses physreg units consistently, prepare for
tracking register pressure also in terms of live units, not live
registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169360 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 06:47:12 +00:00
Andrew Trick
17cf535199 Added RegisterPressureTracker::dump() for debugging.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169359 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 06:47:08 +00:00
Andrew Trick
83dbce2fc8 Comment formatting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169358 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 06:47:06 +00:00
Sean Silva
b63ae85382 docs: Explain plain preformatted text
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169352 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 04:07:33 +00:00
Shuxin Yang
00fab97c01 fix a typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169345 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 00:33:16 +00:00
Michael J. Spencer
96a564f2be Copy clang/Driver/<Option parsing stuff> to llvm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169344 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 00:29:32 +00:00
Sean Silva
ee47edfd8e docs: Sphinxify docs/tutorial/
Sorry for the massive commit, but I just wanted to knock this one down
and it is really straightforward.

There are still a couple trivial (i.e. not related to the content)
things left to fix:

- Use of raw HTML links where :doc:`...` and :ref:`...` could be used
  instead. If you are a newbie and want to help fix this it would make
  for some good bite-sized patches; more experienced developers should
  be focusing on adding new content (to this tutorial or elsewhere, but
  please _do not_ waste your time on formatting when there is such dire
  need for documentation (see docs/SphinxQuickstartTemplate.rst to get
  started writing)).

- Highlighting of the kaleidoscope code blocks (currently left as bare
  `::`).  I will be working on writing a custom Pygments highlighter for
  this, mostly as training for maintaining the `llvm` code-block's lexer
  in-tree. I want to do this because I am extremely unhappy with how it
  just "gives up" on the slightest deviation from the expected syntax
  and leaves the whole code-block un-highlighted.

  More generally I am looking at writing some Sphinx extensions and
  keeping them in-tree as well, to support common use cases that
  currently have no good solution (like "monospace text inside a link").

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169343 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 00:26:32 +00:00
Evan Cheng
4e54480531 Add x86 isel lowering logic to form bit test with inverted condition. e.g.
x ^ -1.

Patch by David Majnemer.
rdar://12755626


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169339 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 00:10:38 +00:00
Matt Beaumont-Gay
105ab4fe4b Appease GCC's -Wparentheses.
(TIL that Clang's -Wparentheses ignores 'x || y && "foo"' on purpose. Neat.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169337 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 23:54:02 +00:00
Bill Wendling
e01b81be33 Split up the ParseOptionalAttrs method into three different methods for each
class of attributes. This makes it much easier to check for errors and to reuse
the code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169336 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 23:40:58 +00:00
Nadav Rotem
46c5f79789 LoopVectorizer: Increase the number of pointers that can be tested at runtime. If we cant prove statically that the pointers are disjoint then we add the runtime check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169334 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 23:25:24 +00:00
Nadav Rotem
dc5eff5b98 Enable if-conversion during vectorization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169331 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 22:59:52 +00:00
Evan Cheng
c8e7045c8a ARM custom lower ctpop for vector types. Patch by Pete Couperus.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169325 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 22:41:50 +00:00
Nadav Rotem
e570dee4b0 Fix a bug in vectorization of if-converted reduction variables. If the
reduction variable is not used outside the loop then we ran into an
endless loop. This change checks if we found the original PHI.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169324 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 22:40:22 +00:00
Jakob Stoklund Olesen
f7999fe1cb Speed up the AllocationOrder class a bit.
Allow the central functions to be inlined, and use the argumentless
isHint() function when possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169319 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 22:25:16 +00:00
Shuxin Yang
a09e18fcfa For rdar://12329730, last piece.
This change attempts to simplify (X^Y) -> X or Y in the user's context if we know that
only bits from X or Y are demanded.

  A minimized case is provided bellow. This change will simplify "t>>16" into "var1 >>16".

  =============================================================
  unsigned foo (unsigned val1, unsigned val2) {
    unsigned t = val1 ^ 1234;
    return (t >> 16) | t; // NOTE: t is used more than once.
  }
  =============================================================

  Note that if the "t" were used only once, the expression would be finally optimized as well.
However, with with this change, the optimization will take place earlier.

  Reviewed by Nadav, Thanks a lot!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169317 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 22:15:32 +00:00
David Blaikie
836cfc46b3 Comment change made in r169304 as requested by Eric Christopher.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169315 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 22:02:33 +00:00
Jyotsna Verma
e198626f87 Define store instructions with base+register offset addressing mode
using multiclass.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169314 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 21:58:25 +00:00
Bill Wendling
9493dae613 Use the 'count' attribute to calculate the upper bound of an array.
The count attribute is more accurate with regards to the size of an array. It
also obviates the upper bound attribute in the subrange. We can also better
handle an unbound array by setting the count to -1 instead of the lower bound to
1 and upper bound to 0.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169312 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 21:34:03 +00:00
Sean Silva
91b9763d53 docs: Begin Sphinxification of docs/tutorial/
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169309 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 21:16:41 +00:00
Sean Silva
1693583fe2 docs: fixup legacy HTML link
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169308 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 21:16:34 +00:00
David Blaikie
b36c531653 Reapply r160148 (reverted in r163570) fixing spurious breakpoints in modern GDB
This reapplies the fix for PR13303 now with more justification. Based on my
execution of the GDB 7.5 test suite this results in:

expected passes: 16101 -> 20890 (+30%)
unexpected failures: 4826 -> 637 (-77%)

There are 23 checks that used to pass and now fail. They are all in
gdb.reverse. Investigating a few looks like they were accidentally passing
due to extra breakpoints being set by this bug. They're generally due to the
difference in end location between gcc and clang, the test suite is trying to
set breakpoints on the closing '}' that clang doesn't associate with any
instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169304 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 21:05:36 +00:00
Eli Bendersky
8181827d1b Remove a URL from code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169293 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 19:08:43 +00:00
Eli Bendersky
f659c0de6c Make NaCl naming consistent. The triple OSType is called NaCl and is represented
textually as NativeClient. Also added a link to the native client project for
readers unfamiliar with it.

A Clang patch will follow shortly.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169291 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 18:37:26 +00:00
Nadav Rotem
f6088d126e Add support for reduction variables when IF-conversion is enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169288 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 18:17:33 +00:00
Jyotsna Verma
4b3aafb4b2 Add patterns to define 'combine', 'tstbit', 'ct0/cl0' (count trailing/leading zeros)
instructions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169287 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 18:05:01 +00:00
Jyotsna Verma
9ee1ec6115 Add constant extender support to ALU32 instructions for V2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169284 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 17:12:00 +00:00
Eli Bendersky
a790bc12c1 A test in thid directory was not being run because lit.local.cfg didn't
include .ll files. Fix that.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169283 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 17:00:11 +00:00
Duncan Sands
a39504d307 Fix comment typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169282 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 16:36:05 +00:00
Bill Schmidt
d7802bf0dd This patch introduces initial-exec model support for thread-local storage
on 64-bit PowerPC ELF.

The patch includes code to handle external assembly and MC output with the
integrated assembler.  It intentionally does not support the "old" JIT.

For the initial-exec TLS model, the ABI requires the following to calculate
the address of external thread-local variable x:

 Code sequence            Relocation                  Symbol
  ld 9,x@got@tprel(2)      R_PPC64_GOT_TPREL16_DS      x
  add 9,9,x@tls            R_PPC64_TLS                 x

The register 9 is arbitrary here.  The linker will replace x@got@tprel
with the offset relative to the thread pointer to the generated GOT
entry for symbol x.  It will replace x@tls with the thread-pointer
register (13).

The two test cases verify correct assembly output and relocation output
as just described.

PowerPC-specific selection node variants are added for the two
instructions above:  LD_GOT_TPREL and ADD_TLS.  These are inserted
when an initial-exec global variable is encountered by
PPCTargetLowering::LowerGlobalTLSAddress(), and later lowered to
machine instructions LDgotTPREL and ADD8TLS.  LDgotTPREL is a pseudo
that uses the same LDrs support added for medium code model's LDtocL,
with a different relocation type.

The rest of the processing is straightforward.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169281 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 16:18:08 +00:00
Justin Holewinski
315f09f422 Update release notes for NVPTX
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169280 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 16:11:51 +00:00
Eli Bendersky
2cbe23fd98 Get rid of references to Tcl, DejagGNU, old test structure, discourage the use
of grep in favor of FileCheck, and other cleanups.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169269 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 14:34:00 +00:00
Eli Bendersky
8b0eab4fb4 Remove the very out-of-date listing of "very important LLVM areas". I don't
think it adds much and keeping it up-to-date is (obviously) a chore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169263 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 13:55:17 +00:00
Evgeniy Stepanov
f76bd101fe Improve MSan tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169256 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 11:42:05 +00:00
NAKAMURA Takumi
30cd56bc56 KillTheDoctor.cpp: Restore Win32 SDK headers before r169251.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169255 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 11:34:27 +00:00
Chandler Carruth
183797ed24 Clean up the sample include orderings, not that it really matters...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169253 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 10:46:21 +00:00
Chandler Carruth
f010c464a1 Sort the #include lines for tools/...
Again, tools are trickier to pick the main module header for than
library source files. I've started to follow the pattern of using
LLVMContext.h when it is included as a stub for program source files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169252 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 10:44:52 +00:00
Chandler Carruth
4ffd89fa4d Sort the #include lines for utils/...
I've tried to find main moudle headers where possible, but the TableGen
stuff may warrant someone else looking at it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169251 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 10:37:14 +00:00
Chandler Carruth
5a88dda4be Sort the #include lines for unittest/...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169250 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 10:23:08 +00:00
Chandler Carruth
4ca7e09b7c Sort the #include lines of the examples/... tree.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169249 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 10:16:57 +00:00
Chandler Carruth
96ad0e8b16 Teach the include sorter to quickly skip files with an extension that
doesn't look like it will have C++ code in it.

Suggestions on a better heuristic are welcome.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169248 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 10:08:59 +00:00
Chandler Carruth
fd025797ea Teach the include sorter to skip files under test trees and under INPUTS
trees. This allows running the input sorter on the entire clang
repository cleanly now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169247 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 09:59:54 +00:00
Chandler Carruth
1ff3d66222 Teach the include sorting script about the gtest headers; sort them with
the system headers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169242 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 09:44:38 +00:00
NAKAMURA Takumi
4cd0a82fbf VMCoreTests/PassManagerTest.cpp: Appease msvc not to do "using llvm::Pass" in class template.
FIXME: I have not checked whether to be compiled on msvc11.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169225 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 07:25:24 +00:00
Chandler Carruth
a1514e24cc Sort includes for all of the .h files under the 'lib' tree. These were
missed in the first pass because the script didn't yet handle include
guards.

Note that the script is now able to handle all of these headers without
manual edits. =]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169224 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 07:12:27 +00:00
Nadav Rotem
e6f2df9610 Give scalar if-converted blocks half the score because they are not always executed due to CF.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169223 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 07:11:52 +00:00