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Author SHA1 Message Date
Jason Molenda 51a4511b72 Add additional checks to the SavedLocationForRegister method 
where it is retrieving the Return Address register contents
on a target where that's a thing.  If we fail to get a valid
RA, we force a switch to the fallback unwind plan.  This patch
adds a sanity check for that fallback unwind plan -- it must
get a valid CFA for this frame in addition to being able to
retrieve the caller's PC -- and it correctly marks the unwind
rules as failing if the fallback unwind plan fails.

<rdar://problem/19010211> 

llvm-svn: 222301
 2014-11-19 02:29:52 +00:00
Nick Kledzik 5b9e48b4ce [mach-o] propagate dylib version numbers 
Mach-o does not use a simple SO_NEEDED to track dependent dylibs.  Instead,
the linker copies four things from each dylib to each client: the runtime path
(aka "install name"), the build time, current version (dylib build number), and
compatibility version  The build time is no longer used (it cause every rebuild
of a dylib to be different).  The compatibility version is usually just 1.0
and never changes, or the dylib becomes incompatible.

This patch copies that information into the NormalizedMachO format and
propagates it to clients.

llvm-svn: 222300
 2014-11-19 02:21:53 +00:00
Rui Ueyama 970dda295e llvm-readobj: fix off-by-one error in COFFDumper 
It printed out base relocation table header as table entry.
This patch also makes llvm-readobj to not skip ABSOLUTE entries
becuase it was confusing.

llvm-svn: 222299
 2014-11-19 02:07:10 +00:00
Eric Fiselier 13d123ccf7 Cleanup quick_exit tests and get them passing in C++03. 
Wrap the original test in _LIBCPP_HAS_QUICK_EXIT so it only runs when we have
quick_exit and add two new tests that check that when _LIBCPP_HAS_QUICK_EXIT
is not defined then no definition of std::at_quick_exit or std::quick_exit are
available.

llvm-svn: 222298
 2014-11-19 01:45:12 +00:00
Kuba Brecka 638bb4a2a3 Make the ASan OS X DYLD_INSERT_LIBRARIES detection path-independent 
Reviewed at http://reviews.llvm.org/D6238

ASan on Darwin during launch reads DYLD_INSERT_LIBRARIES env. variable and if it's not set or if the ASan dylib is not present in there, it relaunches the process. The check whether the dylib is present in the variable is now trying to find a full path in there. This fails in the scenarios where we want to copy the dylib to the executable's directory or somewhere else and set the DYLD_INSERT_LIBRARIES manually, see http://reviews.llvm.org/D6018.

Let's change the search in DYLD_INSERT_LIBRARIES to only look for the filename of the dylib and not the full path.

llvm-svn: 222297
 2014-11-19 01:31:59 +00:00
Eric Fiselier a3857d336e diff --git a/test/language.support/support.types/nullptr_t.pass.cpp b/test/language.support/support.types/nullptr_t.pass.cpp 
index 6c15fef..4d7c8b0 100644
--- a/test/language.support/support.types/nullptr_t.pass.cpp
+++ b/test/language.support/support.types/nullptr_t.pass.cpp
@@ -18,42 +18,62 @@ struct A
     A(std::nullptr_t) {}
 };
 
+template <class T>
+void test_conversions()
+{
+    {
+        T p = 0;
+        assert(p == nullptr);
+    }
+    {
+        T p = nullptr;
+        assert(p == nullptr);
+        assert(nullptr == p);
+        assert(!(p != nullptr));
+        assert(!(nullptr != p));
+    }
+}
+
+template <class T>
+void test_comparisons()
+{
+    T p = nullptr;
+    assert(p == nullptr);
+    assert(p <= nullptr);
+    assert(p >= nullptr);
+    assert(!(p != nullptr));
+    assert(!(p < nullptr));
+    assert(!(p > nullptr));
+    assert(nullptr == p);
+    assert(nullptr <= p);
+    assert(nullptr >= p);
+    assert(!(nullptr != p));
+    assert(!(nullptr < p));
+    assert(!(nullptr > p));
+}
+
+
 int main()
 {
     static_assert(sizeof(std::nullptr_t) == sizeof(void*),
                   "sizeof(std::nullptr_t) == sizeof(void*)");
-    A* p = 0;
-    assert(p == nullptr);
-    void (A::*pmf)() = 0;
-#ifdef __clang__
-    // GCC 4.2 can't handle this
-    assert(pmf == nullptr);
-#endif
-    int A::*pmd = 0;
-    assert(pmd == nullptr);
-    A a1(nullptr);
-    A a2(0);
-    bool b = nullptr;
-    assert(!b);
-    assert(nullptr == nullptr);
-    assert(nullptr <= nullptr);
-    assert(nullptr >= nullptr);
-    assert(!(nullptr != nullptr));
-    assert(!(nullptr < nullptr));
-    assert(!(nullptr > nullptr));
-    A* a = nullptr;
-    assert(a == nullptr);
-    assert(a <= nullptr);
-    assert(a >= nullptr);
-    assert(!(a != nullptr));
-    assert(!(a < nullptr));
-    assert(!(a > nullptr));
-    assert(nullptr == a);
-    assert(nullptr <= a);
-    assert(nullptr >= a);
-    assert(!(nullptr != a));
-    assert(!(nullptr < a));
-    assert(!(nullptr > a));
-    std::ptrdiff_t i = reinterpret_cast<std::ptrdiff_t>(nullptr);
-    assert(i == 0);
+
+    {
+        test_conversions<std::nullptr_t>();
+        test_conversions<void*>();
+        test_conversions<A*>();
+        test_conversions<void(*)()>();
+        test_conversions<void(A::*)()>();
+        test_conversions<int A::*>();
+    }
+    {
+        test_comparisons<std::nullptr_t>();
+        test_comparisons<void*>();
+        test_comparisons<A*>();
+        test_comparisons<void(*)()>();
+    }
+    {
+        bool b = nullptr;
+        assert(!b);
+    }
 }
diff --git a/test/language.support/support.types/nullptr_t_integral_cast.fail.cpp b/test/language.support/support.types/nullptr_t_integral_cast.fail.cpp
new file mode 100644
index 0000000..92bd879
--- /dev/null
+++ b/test/language.support/support.types/nullptr_t_integral_cast.fail.cpp
@@ -0,0 +1,17 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// typedef decltype(nullptr) nullptr_t;
+
+#include <cstddef>
+
+int main()
+{
+    std::ptrdiff_t i = static_cast<std::ptrdiff_t>(nullptr);
+}
diff --git a/test/language.support/support.types/nullptr_t_integral_cast.pass.cpp b/test/language.support/support.types/nullptr_t_integral_cast.pass.cpp
new file mode 100644
index 0000000..34c7a93
--- /dev/null
+++ b/test/language.support/support.types/nullptr_t_integral_cast.pass.cpp
@@ -0,0 +1,24 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// NOTE: nullptr_t emulation cannot handle a reinterpret_cast to an
+// integral type
+// XFAIL: c++98, c++03
+
+// typedef decltype(nullptr) nullptr_t;
+
+
+#include <cstddef>
+#include <cassert>
+
+int main()
+{
+    std::ptrdiff_t i = reinterpret_cast<std::ptrdiff_t>(nullptr);
+    assert(i == 0);
+}

llvm-svn: 222296
 2014-11-19 01:31:56 +00:00
Jim Ingham 4add3b13f0 Add "-k" and "-K" options to the driver, that allow you to register 
some commands that will get run if the target crashes.

Also fix the bug where the local .lldbinit file was not getting
sourced before not after the target was created from the file options on the
driver command line.

<rdar://problem/19019843>

llvm-svn: 222295
 2014-11-19 01:28:13 +00:00
Rafael Espindola 22df0eb2e8 Use a memcpy so that type based alias analysis sees the change. 
The other option would be to do something like

if (that.isSingleWord())
  VAL = that.VAL;
else
  pVal = that.pVal

This bug was causing 86TTI::getIntImmCost to be miscompiled in a LTO
bootstrap in stage2, causing the build of stage3 to fail.

LLVM is getting quiet good at exploiting this. Not sure if there is anything
a sanitizer could do to help

llvm-svn: 222294
 2014-11-19 01:02:22 +00:00
Rui Ueyama 81b73f3020 Fix MSVC warning. 
This patch fixes the following MSVC warning.

  warning C4334: '<<' : result of 32-bit shift implicitly
  converted to 64 bits (was 64-bit shift intended?)

llvm-svn: 222293
 2014-11-19 00:48:06 +00:00
Weiming Zhao 7a2d15678e [Aarch64] Customer lowering of CTPOP to SIMD should check for NEON availability 
llvm-svn: 222292
 2014-11-19 00:29:14 +00:00
Kostya Serebryany c9d251e4d1 [asan] initial support for experimental basic-block tracing; also add tests for various levels of -fsanitize-coverage 
llvm-svn: 222291
 2014-11-19 00:24:11 +00:00
Kostya Serebryany cb45b126fb [asan] add experimental basic-block tracing to asan-coverage; also fix -fsanitize-coverage=3 which was broken by r221718 
llvm-svn: 222290
 2014-11-19 00:22:58 +00:00
Rui Ueyama 74e85130a0 llvm-readobj: teach it how to dump COFF base relocation table 
llvm-svn: 222289
 2014-11-19 00:18:07 +00:00
Kostya Serebryany e5ea424a77 Introduce llvm::SplitAllCriticalEdges 
Summary:
move the code from BreakCriticalEdges::runOnFunction()
into a separate utility function llvm::SplitAllCriticalEdges()
so that it can be used independently.
No functionality change intended.

Test Plan: check-llvm

Reviewers: nlewycky

Reviewed By: nlewycky

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6313

llvm-svn: 222288
 2014-11-19 00:17:31 +00:00
Manman Ren c67109313c Revert r222039 because of bot failure. 
http://lab.llvm.org:8080/green/job/clang-Rlto_master/298/
Hopefully, bot will be green. If not, we will re-submit the commit.

llvm-svn: 222287
 2014-11-19 00:13:26 +00:00
Matt Arsenault c09cc3c5b0 R600/SI: Implement areMemAccessesTriviallyDisjoint 
This partially makes up for not having address spaces
used for alias analysis in some simple cases.

This is not yet enabled by default so shouldn't change anything yet.

llvm-svn: 222286
 2014-11-19 00:01:31 +00:00
Matt Arsenault 9a072c19ae R600/SI: Set hasSideEffects = 0 on load and store instructions. 
Assuming unmodeled side effects interferes with some scheduling
opportunities.

Don't put it in the base class of DS instructions since there
are a few weird effecting, non load/store instructions there.

llvm-svn: 222285
 2014-11-18 23:57:33 +00:00
Daniel Jasper 3aa9a6a126 clang-format: Add option to disable alignment after opening brackets 
Before:
  SomeFunction(parameter,
               parameter);

After:
  SomeFunction(parameter,
      parameter);

Patch by Harry Terkelsen, thank you!

llvm-svn: 222284
 2014-11-18 23:55:27 +00:00
Daniel Jasper 6761b42b90 clang-format: Fix space between generic type parameter and square 
bracket

Before:
  public Foo<X, Y> [] foos;

After:
  public Foo<X, Y>[] foos;

Patch by Harry Terkelsen. Thank you!

llvm-svn: 222283
 2014-11-18 23:48:01 +00:00
Eric Fiselier e15f86cb12 Modify tests to check that va_copy is only defined in C++11 and beyond. 
llvm-svn: 222282
 2014-11-18 23:46:18 +00:00
Simon Pilgrim 9c1e4123f8 [X86][AVX] 256-bit vector stack unaligned load/stores identification 
Under many circumstances the stack is not 32-byte aligned, resulting in the use of the vmovups/vmovupd/vmovdqu instructions when inserting ymm reloads/spills.

This minor patch adds these instructions to the isFrameLoadOpcode/isFrameStoreOpcode helpers so that they can be correctly identified and not be treated as folded reloads/spills.

This has also been noticed by http://llvm.org/bugs/show_bug.cgi?id=18846 where it was causing redundant spills - I've added a reduced test case at test/CodeGen/X86/pr18846.ll

Differential Revision: http://reviews.llvm.org/D6252

llvm-svn: 222281
 2014-11-18 23:38:19 +00:00
Enrico Granata 49bfafb510 Shuffle APIs around a little bit, so that if you pass custom summary options, we don't end up caching the summary hence obtained. You may want to obtain an uncapped summary, but this should not be reflected in the summary we cache. The drawback is that we don't cache as aggressively as we could, but at least you get to have different summaries with different options without having to reset formatters or the SBValue at each step 
llvm-svn: 222280
 2014-11-18 23:36:25 +00:00
Justin Bogner aa5bb91f5a profile: Robustify instrprof tests 
Change these tests not to rely on the exact metadata numbers the
profile data gets.

llvm-svn: 222279
 2014-11-18 23:03:14 +00:00
Eric Fiselier a4884fdefd Flush out test cases for tuples constructor SFINAE 
llvm-svn: 222278
 2014-11-18 23:01:57 +00:00
Enrico Granata 34042212b2 Add the ability for the NSString and libc++ std::string formatters to retrieve uncapped data 
llvm-svn: 222277
 2014-11-18 22:54:45 +00:00
Enrico Granata 489af08f67 Allow dsymutil to exists in a path with spaces in it 
llvm-svn: 222276
 2014-11-18 22:47:33 +00:00
Ismail Pazarbasi 526223319c Revert "git-svn test commit" 
This reverts commit aa8d370ee798f75bc05a1ae9a240bc3e5b6870ac.

llvm-svn: 222275
 2014-11-18 22:45:59 +00:00
Colin LeMahieu 44fd1c8bdf [Hexagon] Adding A2_and instruction. 
llvm-svn: 222274
 2014-11-18 22:45:47 +00:00
Ismail Pazarbasi d98f7558bf git-svn test commit 
llvm-svn: 222273
 2014-11-18 22:44:51 +00:00
Chad Rosier c250881838 [FastISel][AArch64] Also allow folding of sign-/zero-extend and arithmetic 
shift-right for booleans (i1).

Arithmetic shift-right immediate with sign-/zero-extensions also works for
boolean values.  Update the assert and the test cases to reflect that fact.

llvm-svn: 222272
 2014-11-18 22:41:49 +00:00
Eric Christopher b0a1814ff3 More override warning cleanup. 
llvm-svn: 222271
 2014-11-18 22:40:27 +00:00
Chad Rosier e16d16ae41 [FastISel][AArch64] Also allow folding of sign-/zero-extend and logical 
shift-right for booleans (i1).

Logical shift-right immediate with sign-/zero-extensions also works for boolean
values.  Update the assert and the test cases to reflect that fact.

llvm-svn: 222270
 2014-11-18 22:38:42 +00:00
Eric Christopher 917e952d2d Fix 80-column violations, trailing whitespace, comment text. 
llvm-svn: 222269
 2014-11-18 22:36:15 +00:00
Eric Christopher 8be702dbaa This test also requires an aarch64 target. 
llvm-svn: 222268
 2014-11-18 22:36:11 +00:00
Justin Bogner 4c8e8ec863 Fix an inaccurate comment 
llvm-svn: 222267
 2014-11-18 22:17:30 +00:00
Nick Kledzik 2020efb9fe [mach-o] for 32-bit arm, in -r mode support B (not BL) to undefined symbol 
When fixing up BL instructions, the linker has to compare the thumbness of the
target to decide if the instruction needs to be converted to BLX.  But with B
instruction there is no BX, so the linker asserts if the target is not the
same thumbness. This assert was firing in -r mode when the target was undefined
which it interpreted as being non-thumb.

Test case change is to add a B (in both thumb and arm code) to an undefined
symbol and round trip through -r mode.

llvm-svn: 222266
 2014-11-18 22:08:50 +00:00
David Majnemer c6b8e20a5c InstCombine: Fix another infinite loop caused by visitFPTrunc 
We would attempt to replace an frem's operand with the same operand.
This would cause InstCombine to think real work was done, causing
InstCombine to enter an infinite loop.

This fixes the second part of PR21576.

llvm-svn: 222265
 2014-11-18 22:06:45 +00:00
Fariborz Jahanian ef202d96c7 [Sema] Patch to issue warning on comparing parameters with 
nonnull attribute when comparison is always true/false. 
Original patch by Steven Wu. I have added extra code to prevent issuing of
warning  when the nonnull parameter is modified prior to the comparison.
This addition prevents false positives in the most obvious cases.
There may still be false positive warnings in some cases (as one of my tests
indicates), but benefit far outweighs such cases. rdar://18712242

llvm-svn: 222264
 2014-11-18 21:57:54 +00:00
Colin LeMahieu 38765e6d89 [Hexagon] Adding A2_sub instruction 
Renaming test files.

llvm-svn: 222263
 2014-11-18 21:51:51 +00:00
Ismail Pazarbasi cc7d7f5e01 Find SWIG with CMake 
SWIG is searched under certain paths within python script. CMake can
detect SWIG with find_package(SWIG). This is used iff user checks
LLDB_ENABLE_PYTHON_SCRIPTS_SWIG_API_GENERATION. If
buildSwigWrapperClasses.py does not receive swigExecutable argument,
then the script will use its current search implementation.

llvm-svn: 222262
 2014-11-18 21:46:06 +00:00
David Majnemer b32eaddf11 Revert "Revert r222040 because of bot failure." 
This reverts commit r222203, reverting r222040 didn't end up turning the
bot green.

llvm-svn: 222261
 2014-11-18 21:30:02 +00:00
Eric Fiselier ef2ad33e8a Add support for LLVM_USE_SANITIZER=Thread to test suite 
llvm-svn: 222260
 2014-11-18 21:28:49 +00:00
Eric Fiselier 9b681f61b6 Add support for LLVM_USE_SANITIZER=Thread 
llvm-svn: 222259
 2014-11-18 21:26:45 +00:00
Eric Fiselier be6705d4a6 Add support for LLVM_USE_SANITIZER=Thread 
Summary: This will help in testing libc++ and libc++abi with tsan.

Reviewers: samsonov

Reviewed By: samsonov

Subscribers: samsonov, llvm-commits

Differential Revision: http://reviews.llvm.org/D6283

llvm-svn: 222258
 2014-11-18 21:23:38 +00:00
Juergen Ributzka cdda930843 [FastISel][AArch64] Follow-up fix for "Fix shift-immediate emission for "zero" shifts." 
Shifts also perform sign-/zero-extends to larger types, which requires us to emit
an integer extend instead of a simple COPY.

Related to PR21594.

llvm-svn: 222257
 2014-11-18 21:20:17 +00:00
Matt Arsenault 162c1010bd R600/SI: Move SIFixSGPRCopies to inst selector passes 
This should expose more of the actually used VALU
instructions to the machine optimization passes.

This also should help getting i1 handling into a better state.
For not entirly understood reasons, this fixes the split-scalar-i64-add.ll
test where a 64-bit add would only partially be moved to the VALU
resulting in use of undefined VCC.

llvm-svn: 222256
 2014-11-18 21:06:58 +00:00
Juergen Ributzka 7a7c4684e4 [AArch64] Don't optimize all compare instructions. 
"optimizeCompareInstr" converts compares (cmp/cmn) into plain sub/add
instructions when the flags are not used anymore. This conversion is valid for
most instructions, but not all. Some instructions that don't set the flags
(e.g. sub with immediate) can set the SP, whereas the flag setting version uses
the same encoding for the "zero" register.

Update the code to also check for the return register before performing the
optimization to make sure that a cmp doesn't suddenly turn into a sub that sets
the stack pointer.

I don't have a test case for this, because it isn't easy to trigger.

llvm-svn: 222255
 2014-11-18 21:02:40 +00:00
Owen Anderson b5a259935c Fix an incorrect chain operand when expanding INSERT_VECTOR operations through the stack. 
Patch by Daniil Troshkov!

llvm-svn: 222254
 2014-11-18 20:50:19 +00:00
Tom Stellard f0a2107c6b R600/SI: Make sure resource descriptors are always stored in SGPRs 
llvm-svn: 222253
 2014-11-18 20:39:39 +00:00
Eric Fiselier 5cb5051b46 [libcxxabi] Refactor CMakeLists.txt's handling of compile and link flags to suppress warnings. 
Summary:
This patch mirrors the recent change to libc++ found here http://reviews.llvm.org/D6277.
This fixes PR20395 (http://llvm.org/bugs/show_bug.cgi?id=20395).

Reviewers: jroelofs, mclow.lists, danalbert

Reviewed By: danalbert

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D6286

llvm-svn: 222252
 2014-11-18 20:37:53 +00:00