LSR has gradually been improved to more aggressively reuse existing code, particularly existing phi cycles. This exposed problems with the SCEVExpander's sloppy treatment of its insertion point. I applied some rigor to the insertion point problem that will hopefully avoid an endless bug cycle in this area. Changes:
- Always used properlyDominates to check safe code hoisting.
- The insertion point provided to SCEV is now considered a lower bound. This is usually a block terminator or the use itself. Under no cirumstance may SCEVExpander insert below this point.
- LSR is reponsible for finding a "canonical" insertion point across expansion of different expressions.
- Robust logic to determine whether IV increments are in "expanded" form and/or can be safely hoisted above some insertion point.
Fixes PR11783: SCEVExpander assert.
llvm-svn: 148535
of the identifier name in the binary images section. Improved the regular
expression for the frames.
Added a new file "crashlog.lldb" which can be sourced with "command source"
that will import the module and set itself up to be used as a command.
llvm-svn: 148529
module (you can't import a module with a '-' in it) and also added a
Symbolcate(...) top level function so it can be imported and used as an
LLDB command.
Then you can import the module and map a "crashlog" command (for darwin
use only currently) to the python function "crashlog.Symbolicate":
(lldb) script import crashlog
(lldb) command script add -f crashlog.Symbolicate crashlog
Then use it to symbolicate:
(lldb) crashlog --crash-log /path/to/foo.crash
The crash log will then get symbolicated and inline frames will be added to
the crash log and the frames will be displayed. The crash log currently will
only try and fetch and setup the target images requires in order to do the
symbolication.
This will need to be iterated upon, but it is getting close to being useful
so I am going to check this in.
llvm-svn: 148528
to find data on the heap. To use this, make the project and then when stopped in your
lldb debug session:
(lldb) process load /path/to/libheap.dylib
(lldb) find_pointer_in_heap (0x112233000000)
This will grep everything in all active allocation blocks and print and malloc blocks that contain the pointer 0x112233000000.
This can also work for c strings:
(lldb) find_cstring_in_heap ("hello")
llvm-svn: 148523
'insertvalue' instructions that recreate the structure returned by the
'landingpad' instruction. Because the 'insertvalue' instruction isn't supported
by FastISel, this can save a bit of time during -O0 compilation.
llvm-svn: 148520
We should ultimately introduce GetAs...Type
functions in all cases where we have Is...Type
functions that know how to look inside typedefs.
llvm-svn: 148512
http://llvm.org/viewvc/llvm-project?rev=148491&view=rev check in broke the argument completion
for "settings set th", followed by TAB. Provide a way for commands who want raw commands to
hook into the completion mechanism.
llvm-svn: 148500
Fixed an issue where backtick char is not properly honored when setting the frame-format variable, like the following:
(lldb) settings set frame-format frame #${frame.index}: ${frame.pc}{ ${module.file.basename}{`${function.name-with-args}${function.pc-offset}}}{ at ${line.file.basename}:${line.number}}\n
(lldb) settings show frame-format
frame-format (string) = "frame #${frame.index}: ${frame.pc}{ `${module.file.basename}{${function.name-with-args}${function.pc-offset}}}{` at ${line.file.basename}:${line.number}}\n"
(lldb)
o CommandObjectSettings.h/.cpp:
Modify the command object impl to require raw command string instead of parsed command string,
which also fixes an outstanding issue that customizing the prompt with trailing spaces doesn't
work.
o Args.cpp:
During CommandInterpreter::HandleCommand(), there is a PreprocessCommand phase which already
strips/processes pairs of backticks as an expression eval step. There's no need to treat
a backtick as starting a quote.
o TestAbbreviations.py and change_prompt.lldb:
Fixed incorrect test case/logic.
o TestSettings.py:
Remove expectedFailure decorator.
llvm-svn: 148491
Andrew Trick