An atomic store always make the target location fully initialized (in the
current implementation). It should not store origin. Initialized memory can't
have meaningful origin, and, due to origin granularity (4 bytes) there is a
chance that this extra store would overwrite meaningfull origin for an adjacent
location.
llvm-svn: 228444
This change has two main purposes:
1) We do not use a static interface to hide an object we create and
destroy for every basic block we copy.
2) We allow the BlockGenerator to store information between calls to
the copyBB method. This will ease scalar/phi code generation
later on.
While a lot of method signatures were changed this should not cause
any real behaviour change.
Differential Revision: http://reviews.llvm.org/D7467
llvm-svn: 228443
Move the placement delete into the base class. This permits the proper emission
of the virtual destructor in UnwindCursor by using the class specific placement
delete instead of the normal single element ::operator delete. With this patch,
we can finally build libunwind as a DSO without a runtime dependency on
libc++/libc++abi.
llvm-svn: 228436
This change resubmits the patch that broke the build, this time
without unittests. The unittests will be submitted separately
after the problem has been addressed:
--Original Commit Message--
Create lib/DebugInfo/PDB.
This patch creates a platform-independent interface to a PDB reader.
There is currently no implementation of this interface, which will
be provided in future patches. This defines the basic object model
which any implementation must conform to.
Reviewed by: David Blaikie
Differential Revision: http://reviews.llvm.org/D7356
llvm-svn: 228435
If complete-unroll could help us to optimize away N% of instructions, we
might want to do this even if the final size would exceed loop-unroll
threshold. However, we don't want to unroll huge loop, and we are add
AbsoluteThreshold to avoid that - this threshold will never be crossed,
even if we expect to optimize 99% instructions after that.
llvm-svn: 228434
This allows us to model PHI nodes in the polyhedral description
without demoting them. The modeling however will result in the
same accesses as the demotion would have introduced.
Differential Revision: http://reviews.llvm.org/D7415
llvm-svn: 228433
It is a variation of SimplifyBinOp, but it takes into account
FastMathFlags.
It is needed in inliner and loop-unroller to accurately predict the
transformation's outcome (previously we dropped the flags and were too
conservative in some cases).
Example:
float foo(float *a, float b) {
float r;
if (a[1] * b)
r = /* a lot of expensive computations */;
else
r = 1;
return r;
}
float boo(float *a) {
return foo(a, 0.0);
}
Without this patch, we don't inline 'foo' into 'boo'.
llvm-svn: 228432
This patch creates a platform-independent interface to a PDB reader.
There is currently no implementation of this interface, which will
be provided in future patches. This defines the basic object model
which any implementation must conform to.
Reviewed by: David Blaikie
Differential Revision: http://reviews.llvm.org/D7356
llvm-svn: 228428
This was a trivial think-o, but it's in a method of a templated class
and doesn't have any callers yet, so the compiler let it pass. I hope
to add a unit test to cover this soon.
llvm-svn: 228425
Convert all pure virtual functions in the UnwindCursor with implementations that
abort. This is effectively manually replicating the current behaviour, whilst
removing the compiler generated calls to __cxa_pure_virtual, which will abort at
runtime with a message indicating that a pure virtual call was made.
The whitespace changes are the result of executing clang-format over the changed
region.
llvm-svn: 228423
modifiers on them. If we have a matching output constraint with
an early clobber make sure we don't propagate that to the input
constraint.
llvm-svn: 228422
by using a segment set.
The patch addresses a compile-time performance regression in the LiveIntervals
analysis pass (see http://llvm.org/bugs/show_bug.cgi?id=18580). This regression
is especially critical when compiling long functions. Our analysis had shown
that the most of time is taken for generation of live intervals for physical
registers. Insertions in the middle of the array of live ranges cause quadratic
algorithmic complexity, which is apparently the main reason for the slow-down.
Overview of changes:
- The patch introduces an additional std::set<Segment>* member in LiveRange for
storing segments in the phase of initial creation. The set is used if this
member is not NULL, otherwise everything works the old way.
- The set of operations on LiveRange used during initial creation (i.e. used by
createDeadDefs and extendToUses) have been reimplemented to use the segment
set if it is available.
- After a live range is created the contents of the set are flushed to the
segment vector, because the set is not as efficient as the vector for the
later uses of the live range. After the flushing, the set is deleted and
cannot be used again.
- The set is only for live ranges computed in
LiveIntervalAnalysis::computeLiveInRegUnits() and getRegUnit() but not in
computeVirtRegs(), because I did not bring any performance benefits to
computeVirtRegs() and for some examples even brought a slow down.
Patch by Vaidas Gasiunas <vaidas.gasiunas@sap.com>
Differential Revision: http://reviews.llvm.org/D6013
llvm-svn: 228421
Processes running on a remote target can already send $O messages
to send stdout but there is no way to send stdin to a remote
inferior.
This allows processes using the API to pump stdin into a remote
inferior process.
It fixes a hang in TestProcessIO.py when running against a remote
target.
llvm-svn: 228419
This will allow it to be shared with the new Loop Distribution pass.
getFirstInst is currently duplicated across LoopVectorize.cpp and
LoopAccessAnalysis.cpp. This is a short-term work-around until we figure out
a better solution.
NFC. (The code moved is adjusted a bit for the name of the Loop member and
that PtrRtCheck is now a reference rather than a pointer.)
llvm-svn: 228418
Summary:
This patch fixes *stopped notification for remote target when started with eLaunchFlagStopAtEntry (for example, using "process launch -s").
See explanation below:
```
Target::Launch (ProcessLaunchInfo &launch_info, Stream *stream)
{
...
if (state != eStateConnected && platform_sp && platform_sp->CanDebugProcess ())
{
...
}
else
{
...
if (m_process_sp)
error = m_process_sp->Launch (launch_info);
}
if (error.Success())
{
if (launch_info.GetFlags().Test(eLaunchFlagStopAtEntry) == false)
{
....
}
-- missing event if eLaunchFlagStopAtEntry is set --
m_process_sp->RestoreProcessEvents ();
}
...
return error
```
Also this patch contains tests and you can check how it works.
Reviewers: zturner, clayborg, abidh
Reviewed By: clayborg
Subscribers: clayborg, abidh, zturner, lldb-commits
Differential Revision: http://reviews.llvm.org/D7273
llvm-svn: 228417
Summary:
This fixes test_with_dsym_and_run_command and test_with_dwarf_and_run_commands tests after r227285: "SBThread::GetDescription should use the Thread format instead of making up"
log:
```
======================================================================
FAIL: test_with_dsym_and_run_command (TestConvenienceVariables.ConvenienceVariablesCase)
Test convenience variables lldb.debugger, lldb.target, lldb.process, lldb.thread, and lldb.frame.
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Users/testuser/build/workspace/LLDB_master_release_OSX/llvm_master/tools/lldb/test/lldbtest.py", line 456, in wrapper
return func(self, *args, **kwargs)
File "/Users/testuser/build/workspace/LLDB_master_release_OSX/llvm_master/tools/lldb/test/lldbtest.py", line 612, in wrapper
func(*args, **kwargs)
File "/Users/testuser/build/workspace/LLDB_master_release_OSX/llvm_master/tools/lldb/test/functionalities/embedded_interpreter/TestConvenienceVariables.py", line 18, in test_with_dsym_and_run_command
self.convenience_variables()
File "/Users/testuser/build/workspace/LLDB_master_release_OSX/llvm_master/tools/lldb/test/functionalities/embedded_interpreter/TestConvenienceVariables.py", line 83, in convenience_variables
patterns = ['SBThread: tid = 0x[0-9a-f]+'])
File "/Users/testuser/build/workspace/LLDB_master_release_OSX/llvm_master/tools/lldb/test/lldbtest.py", line 2091, in expect
msg if msg else EXP_MSG(str, exe))
AssertionError: False is not True : 'print lldb.thread
thread #1: tid = 0x80d885, 0x0000000100000f4d a.out`main(argc=1, argv=0x00007fff5fbff078) + 29 at main.c:4, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
' matches expected result
Config=x86_64-clang
======================================================================
FAIL: test_with_dwarf_and_run_commands (TestConvenienceVariables.ConvenienceVariablesCase)
Test convenience variables lldb.debugger, lldb.target, lldb.process, lldb.thread, and lldb.frame.
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Users/testuser/build/workspace/LLDB_master_release_OSX/llvm_master/tools/lldb/test/lldbtest.py", line 473, in wrapper
return func(self, *args, **kwargs)
File "/Users/testuser/build/workspace/LLDB_master_release_OSX/llvm_master/tools/lldb/test/lldbtest.py", line 641, in wrapper
func(*args, **kwargs)
File "/Users/testuser/build/workspace/LLDB_master_release_OSX/llvm_master/tools/lldb/test/lldbtest.py", line 612, in wrapper
func(*args, **kwargs)
File "/Users/testuser/build/workspace/LLDB_master_release_OSX/llvm_master/tools/lldb/test/lldbtest.py", line 537, in wrapper
func(*args, **kwargs)
File "/Users/testuser/build/workspace/LLDB_master_release_OSX/llvm_master/tools/lldb/test/lldbtest.py", line 537, in wrapper
func(*args, **kwargs)
File "/Users/testuser/build/workspace/LLDB_master_release_OSX/llvm_master/tools/lldb/test/functionalities/embedded_interpreter/TestConvenienceVariables.py", line 28, in test_with_dwarf_and_run_commands
self.convenience_variables()
File "/Users/testuser/build/workspace/LLDB_master_release_OSX/llvm_master/tools/lldb/test/functionalities/embedded_interpreter/TestConvenienceVariables.py", line 83, in convenience_variables
patterns = ['SBThread: tid = 0x[0-9a-f]+'])
File "/Users/testuser/build/workspace/LLDB_master_release_OSX/llvm_master/tools/lldb/test/lldbtest.py", line 2091, in expect
msg if msg else EXP_MSG(str, exe))
AssertionError: False is not True : 'print lldb.thread
thread #1: tid = 0x80d8d3, 0x0000000100000f4d a.out`main(argc=1, argv=0x00007fff5fbff078) + 29 at main.c:4, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
' matches expected result
Config=x86_64-clang
```
Reviewers: zturner, jingham, abidh, clayborg
Subscribers: abidh, lldb-commits, jingham, clayborg, zturner
Differential Revision: http://reviews.llvm.org/D7464
llvm-svn: 228415
Summary:
These changes include:
* Fix -var-create to be able use current frame '*' (MI)
* Fix print-values option in -var-update (MI)
* Fix 'variable doesn't exist' error in -var-show-attributes (MI)
* Mark print-values option as 'handled-by-cmd' in -var-update (MI)
* Fix SBValue::GetValueDidChange if value was changed
* Fix lldb-mi: -data-evaluate-expression shows undef vars. Before this fix -data-evaluate-expression perceives undefined variables as strings:
```
(gdb)
-data-evaluate-expression undef
^done,value="undef"
```
* Minor fix: -data-evaluate-expression uses IsUnknownValue()
* Enable MiEvaluateTestCase test
All test pass on OS X.
Reviewers: abidh, clayborg
Subscribers: lldb-commits, clayborg, abidh
Differential Revision: http://reviews.llvm.org/D7463
llvm-svn: 228414
Summary:
-iframework option is used to specified System framework path so the
path specified should be passed to linker as -F option
rdar://problem/18234544
Reviewers: bob.wilson
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D7106
llvm-svn: 228413
Summary:
These changes include:
* Add eVariableInfoFormat argument for MIResponseFormVariableInfo{,2,3} and GetVariableInfo{,2} functions
* Fix -stack-list-locals and -stack-list-arguments: they ingored print-values
* Enable MiStackTestCase tests for -stack-list-xxx commands
All test pass on OS X.
Reviewers: abidh, clayborg
Reviewed By: abidh
Subscribers: lldb-commits, clayborg, abidh
Differential Revision: http://reviews.llvm.org/D7462
llvm-svn: 228412
Normalize
select(C0, select(C1, a, b), b) -> select((C0 & C1), a, b)
select(C0, a, select(C1, a, b)) -> select((C0 | C1), a, b)
This normal form may enable further combines on the And/Or and shortens
paths for the values. Many targets prefer the other but can go back
easily in CodeGen.
Differential Revision: http://reviews.llvm.org/D7399
llvm-svn: 228409
RTTI and exceptions are not needed for the unwinder, the use of C++ there is for
very specific cases, and does not require dynamic_cast nor does it use
exceptions. This avoids unnecessary references to type information being
emitted.
llvm-svn: 228408
If you request that the file manager not close your file immediately
after reading, it's useful to be able to close it later to prevent a
file descriptor leak.
llvm-svn: 228407
This reverts commit r228382.
This breaks the following case: Reported by Jeroen Ketema:
http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20150202/122961.html
typedef __attribute__((ext_vector_type(3))) char char3;
void foo() {
char3 v = {1,1,1};
char3 w = {1,2,3};
w <<= v;
}
If I compile with:
clang -x cl file.c
Then an error is produced:
file.c:10:5: error: expression is not assignable
w <<= v;
~ ^
1 error generated.
llvm-svn: 228406
Rui Ueyama