Get function boundaries from the LC_FUNCTION_STARTS load command. This helps to determine symbol sizes and also allows us to be able to debug stripped binaries.
If you have a stack backtrace that goes through a function that has been stripped from the symbol table, the variables for any functions above that stack frame will most likely be incorrect. It can also affect our ability to step in/out/through of a function.
llvm-svn: 152381
Don't show variable values in Xcode when they are out of scope. This allows Xcode to step a lot faster when there are many variables in the variables view.
llvm-svn: 152380
- On -emit-llvm-only of 403.gcc/combine.c, for example, we make 160k calls to
getTypeInfo but only ever deal with 680 some distinct types.
I saw these speedups (user time):
403.gcc/combine.c -- 3.1%
OmniGroupFrameworks/NSBezierPath-OAExtensions.m -- 3.6%
JavaScriptCore/Interpreter.cpp -- 1.4%
which seems pretty sweet.
I ran some histograms on those compiles and we end up doing a ton of
getTypeInfo() on 'char' and 'int'. I tried splitting out a fast path for builtin
types, but this wasn't a win. Still kinda seems like we could be doing better
here.
llvm-svn: 152377
This solves an issue where a ValueObject was getting a wrong children count (usually, a huge value) and trying to resize the vector of children to fit that many ValueObject*
Added a loop detection algorithm to the synthetic children provider for std::list
Added a few more checks to the synthetic children provider for std::vector
Both std::list and std::vector's synthetic children providers now cache the count of children instead of recomputing it every time
std::map has a field that stores the count, so there is little need to cache it on our side
llvm-svn: 152371
caused several clients to select the slow variation. =[ This is extra
annoying because we don't have any realistic way of testing this -- by
design, these two functions *must* compute the same value.
Found while inspecting the output of some benchmarks I'm working on.
llvm-svn: 152369
introduced. Specifically, there are cost reductions for all
constant-operand icmp instructions against an alloca, regardless of
whether the alloca will in fact be elligible for SROA. That means we
don't want to abort the icmp reduction computation when we abort the
SROA reduction computation. That in turn frees us from the need to keep
a separate worklist and defer the ICmp calculations.
Use this new-found freedom and some judicious function boundaries to
factor the innards of computing the cost factor of any given instruction
out of the loop over the instructions and into static helper functions.
This greatly simplifies the code, and hopefully makes it more clear what
is happening here.
Reviewed by Eric Christopher. There is some concern that we'd like to
ensure this doesn't get out of hand, and I plan to benchmark the effects
of this change over the next few days along with some further fixes to
the inline cost.
llvm-svn: 152368
to be debugged while running the test suite. By default, compilers is set to ['clang'] and can be overridden
using the "-C compilerA^compilerB" option.
llvm-svn: 152367
Original commit message from r147481:
DAGCombine for transforming 128->256 casts into a vmovaps, rather
then a vxorps + vinsertf128 pair if the original vector came from a load.
Fix:
Unaligned loads need to generate a vmovups.
rdar://10974078
llvm-svn: 152366
- This function is not at all free; pass it around along some hot paths instead
of recomputing it deep inside various VarDecl methods.
llvm-svn: 152363
Essentially, a bug centers around a story for various symbols and regions. We should only include
the path diagnostic events that relate to those symbols and regions.
The pruning is done by associating a set of interesting symbols and regions with a BugReporter, which
can be modified at BugReport creation or by BugReporterVisitors.
This patch reduces the diagnostics emitted in several of our test cases. I've vetted these as
having desired behavior. The only regression is a missing null check diagnostic for the return
value of realloc() in test/Analysis/malloc-plist.c. This will require some investigation to fix,
and I have added a FIXME to the test case.
llvm-svn: 152361
when building the inferior programs.
Example:
/Volumes/data/lldb/svn/ToT/test $ ./dotest.py -v functionalities/watchpoint
LLDB build dir: /Volumes/data/lldb/svn/ToT/build/Debug
LLDB-123
Path: /Volumes/data/lldb/svn/ToT
URL: https://johnny@llvm.org/svn/llvm-project/lldb/trunk
Repository Root: https://johnny@llvm.org/svn/llvm-project
Repository UUID: 91177308-0d34-0410-b5e6-96231b3b80d8
Revision: 152244
Node Kind: directory
Schedule: normal
Last Changed Author: gclayton
Last Changed Rev: 152244
Last Changed Date: 2012-03-07 13:03:09 -0800 (Wed, 07 Mar 2012)
Session logs for test failures/errors/unexpected successes will go into directory '2012-03-08-16_43_51'
Command invoked: python ./dotest.py -v functionalities/watchpoint
Configuration: arch=x86_64
----------------------------------------------------------------------
Collected 21 tests
1: test_hello_watchlocation_with_dsym (TestWatchLocation.HelloWatchLocationTestCase)
Test watching a location with '-x size' option. ... ok
2: test_hello_watchlocation_with_dwarf (TestWatchLocation.HelloWatchLocationTestCase)
Test watching a location with '-x size' option. ... ok
3: test_hello_watchpoint_with_dsym_using_watchpoint_set (TestMyFirstWatchpoint.HelloWatchpointTestCase)
Test a simple sequence of watchpoint creation and watchpoint hit. ... ok
4: test_hello_watchpoint_with_dwarf_using_watchpoint_set (TestMyFirstWatchpoint.HelloWatchpointTestCase)
Test a simple sequence of watchpoint creation and watchpoint hit. ... ok
5: test_watchpoint_multiple_threads_with_dsym (TestWatchpointMultipleThreads.WatchpointForMultipleThreadsTestCase)
Test that lldb watchpoint works for multiple threads. ... ok
6: test_watchpoint_multiple_threads_with_dwarf (TestWatchpointMultipleThreads.WatchpointForMultipleThreadsTestCase)
Test that lldb watchpoint works for multiple threads. ... ok
7: test_rw_disable_after_first_stop__with_dwarf (TestWatchpointCommands.WatchpointCommandsTestCase)
Test read_write watchpoint but disable it after the first stop. ... ok
8: test_rw_disable_after_first_stop_with_dsym (TestWatchpointCommands.WatchpointCommandsTestCase)
Test read_write watchpoint but disable it after the first stop. ... ok
9: test_rw_disable_then_enable_with_dsym (TestWatchpointCommands.WatchpointCommandsTestCase)
Test read_write watchpoint, disable initially, then enable it. ... ok
10: test_rw_disable_then_enable_with_dwarf (TestWatchpointCommands.WatchpointCommandsTestCase)
Test read_write watchpoint, disable initially, then enable it. ... ok
11: test_rw_watchpoint_delete_with_dsym (TestWatchpointCommands.WatchpointCommandsTestCase)
Test delete watchpoint and expect not to stop for watchpoint. ... ok
12: test_rw_watchpoint_delete_with_dwarf (TestWatchpointCommands.WatchpointCommandsTestCase)
Test delete watchpoint and expect not to stop for watchpoint. ... ok
13: test_rw_watchpoint_set_ignore_count_with_dsym (TestWatchpointCommands.WatchpointCommandsTestCase)
Test watchpoint ignore count and expect to not to stop at all. ... ok
14: test_rw_watchpoint_set_ignore_count_with_dwarf (TestWatchpointCommands.WatchpointCommandsTestCase)
Test watchpoint ignore count and expect to not to stop at all. ... ok
15: test_rw_watchpoint_with_dsym (TestWatchpointCommands.WatchpointCommandsTestCase)
Test read_write watchpoint and expect to stop two times. ... ok
16: test_rw_watchpoint_with_dwarf (TestWatchpointCommands.WatchpointCommandsTestCase)
Test read_write watchpoint and expect to stop two times. ... ok
17: test_watchpoint_cond_with_dsym (TestWatchpointConditionCmd.WatchpointConditionCmdTestCase)
Test watchpoint condition. ... ok
18: test_watchpoint_cond_with_dwarf (TestWatchpointConditionCmd.WatchpointConditionCmdTestCase)
Test watchpoint condition. ... ok
19: test_watchlocation_with_dsym_using_watchpoint_set (TestWatchLocationWithWatchSet.WatchLocationUsingWatchpointSetTestCase)
Test watching a location with 'watchpoint set expression -w write -x size' option. ... ok
20: test_watchlocation_with_dwarf_using_watchpoint_set (TestWatchLocationWithWatchSet.WatchLocationUsingWatchpointSetTestCase)
Test watching a location with 'watchpoint set expression -w write -x size' option. ... ok
21: test_error_cases_with_watchpoint_set (TestWatchpointSetErrorCases.WatchpointSetErrorTestCase)
Test error cases with the 'watchpoint set' command. ... ok
----------------------------------------------------------------------
Ran 21 tests in 74.590s
OK
Configuration: arch=i386
----------------------------------------------------------------------
Collected 21 tests
1: test_hello_watchlocation_with_dsym (TestWatchLocation.HelloWatchLocationTestCase)
Test watching a location with '-x size' option. ... ok
2: test_hello_watchlocation_with_dwarf (TestWatchLocation.HelloWatchLocationTestCase)
Test watching a location with '-x size' option. ... ok
3: test_hello_watchpoint_with_dsym_using_watchpoint_set (TestMyFirstWatchpoint.HelloWatchpointTestCase)
Test a simple sequence of watchpoint creation and watchpoint hit. ... ok
4: test_hello_watchpoint_with_dwarf_using_watchpoint_set (TestMyFirstWatchpoint.HelloWatchpointTestCase)
Test a simple sequence of watchpoint creation and watchpoint hit. ... ok
5: test_watchpoint_multiple_threads_with_dsym (TestWatchpointMultipleThreads.WatchpointForMultipleThreadsTestCase)
Test that lldb watchpoint works for multiple threads. ... ok
6: test_watchpoint_multiple_threads_with_dwarf (TestWatchpointMultipleThreads.WatchpointForMultipleThreadsTestCase)
Test that lldb watchpoint works for multiple threads. ... ok
7: test_rw_disable_after_first_stop__with_dwarf (TestWatchpointCommands.WatchpointCommandsTestCase)
Test read_write watchpoint but disable it after the first stop. ... ok
8: test_rw_disable_after_first_stop_with_dsym (TestWatchpointCommands.WatchpointCommandsTestCase)
Test read_write watchpoint but disable it after the first stop. ... ok
9: test_rw_disable_then_enable_with_dsym (TestWatchpointCommands.WatchpointCommandsTestCase)
Test read_write watchpoint, disable initially, then enable it. ... ok
10: test_rw_disable_then_enable_with_dwarf (TestWatchpointCommands.WatchpointCommandsTestCase)
Test read_write watchpoint, disable initially, then enable it. ... ok
11: test_rw_watchpoint_delete_with_dsym (TestWatchpointCommands.WatchpointCommandsTestCase)
Test delete watchpoint and expect not to stop for watchpoint. ... ok
12: test_rw_watchpoint_delete_with_dwarf (TestWatchpointCommands.WatchpointCommandsTestCase)
Test delete watchpoint and expect not to stop for watchpoint. ... ok
13: test_rw_watchpoint_set_ignore_count_with_dsym (TestWatchpointCommands.WatchpointCommandsTestCase)
Test watchpoint ignore count and expect to not to stop at all. ... ok
14: test_rw_watchpoint_set_ignore_count_with_dwarf (TestWatchpointCommands.WatchpointCommandsTestCase)
Test watchpoint ignore count and expect to not to stop at all. ... ok
15: test_rw_watchpoint_with_dsym (TestWatchpointCommands.WatchpointCommandsTestCase)
Test read_write watchpoint and expect to stop two times. ... ok
16: test_rw_watchpoint_with_dwarf (TestWatchpointCommands.WatchpointCommandsTestCase)
Test read_write watchpoint and expect to stop two times. ... ok
17: test_watchpoint_cond_with_dsym (TestWatchpointConditionCmd.WatchpointConditionCmdTestCase)
Test watchpoint condition. ... ok
18: test_watchpoint_cond_with_dwarf (TestWatchpointConditionCmd.WatchpointConditionCmdTestCase)
Test watchpoint condition. ... ok
19: test_watchlocation_with_dsym_using_watchpoint_set (TestWatchLocationWithWatchSet.WatchLocationUsingWatchpointSetTestCase)
Test watching a location with 'watchpoint set expression -w write -x size' option. ... ok
20: test_watchlocation_with_dwarf_using_watchpoint_set (TestWatchLocationWithWatchSet.WatchLocationUsingWatchpointSetTestCase)
Test watching a location with 'watchpoint set expression -w write -x size' option. ... ok
21: test_error_cases_with_watchpoint_set (TestWatchpointSetErrorCases.WatchpointSetErrorTestCase)
Test error cases with the 'watchpoint set' command. ... ok
----------------------------------------------------------------------
Ran 21 tests in 67.059s
OK
llvm-svn: 152357
analyzed.
The CallGraph is used when inlining is on, which is the current default.
This alone does not bring any performance improvement. It's a
stepping stone for the upcoming optimization in which we do not
re-analyze a function that has already been analyzed while inlined in
other functions. Using the call graph makes it easier to play with
the order of functions to minimize redundant analyzes.
llvm-svn: 152352
for a few kinds of error. Specifically:
Since we're after translation phase 6, the "" token might be formed by multiple
source-level string literals. Checking the token width is not a correct way of
detecting empty string literals, due to escaped newlines. Diagnose and recover
from a missing space between "" and suffix, and from string literals other than
"", which are followed by a suffix.
llvm-svn: 152348
first codepoint! Also, don't reject empty raw string literals for spurious
"encoding" issues. Also, don't rely on undefined behavior in ConvertUTF.c.
llvm-svn: 152344
Richard Smith