David Blaikie f873e2ec93 bugpoint: disabling symbolication of bugpoint-executed programs ... Initial implementation - needs similar work/testing for other tools bugpoint invokes (llc, lli I think, maybe more). Alternatively (as suggested by chandlerc@) an environment variable could be used. This would allow the option to pass transparently through user scripts, pass to compilers if they happened to be LLVM-ish, etc. I worry a bit about using cl::opt in the crash handling code - LLVM might crash early, perhaps before the cl::opt is properly initialized? Or at least before arguments have been parsed? - should be OK since it defaults to "pretty", so if the crash is very early in opt parsing, etc, then crash reports will still be symbolized. I shyed away from doing this with an environment variable when I realized that would require copying the existing environment and appending the env variable of interest. But it seems there's no existing LLVM API for accessing the environment (even the Support tests for process launching have their own ifdefs for getting the environment). It could be added, but seemed like a higher bar/untested codepath to actually add environment variables. Most importantly, this reduces the runtime of test/BugPoint/metadata.ll in a split-dwarf Debug build from 1m34s to 6.5s by avoiding a lot of symbolication. (this wasn't a problem for non-split-dwarf builds only because the executable was too large to map into memory (due to bugpoint setting a 400MB memory (including address space - not sure why? Going to remove that) limit on the child process) so symbolication would fail fast & wouldn't spend all that time parsing DWARF, etc) Reviewers: chandlerc, dannyb Differential Revision: https://reviews.llvm.org/D33804 llvm-svn: 305056		2017-06-09 07:29:03 +00:00
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BugDriver.cpp	bugpoint: Return Errors instead of passing around strings	2016-09-06 17:18:22 +00:00
BugDriver.h	bugpoint: Return Errors instead of passing around strings	2016-09-06 17:18:22 +00:00
bugpoint.cpp	Do not inline hot callsites for samplepgo in thinlto compile phase.	2017-03-21 19:55:36 +00:00
CMakeLists.txt	[CMake] bugpoint depends on intrinsics_gen	2016-11-18 23:25:30 +00:00
CrashDebugger.cpp	[Bugpoint] Use boolean AND instead of bitwise AND (PR32660)	2017-04-14 15:21:15 +00:00
ExecutionDriver.cpp	Turn cl::values() (for enum) from a vararg function to using C++ variadic template	2016-10-08 19:41:06 +00:00
ExtractFunction.cpp	Suppress all uses of LLVM_END_WITH_NULL. NFC.	2017-05-09 19:31:13 +00:00
FindBugs.cpp	Remove uses of deprecated std::random_shuffle in the LLVM code base. Reviewed as https://reviews.llvm.org/D29780.	2017-02-16 14:37:03 +00:00
ListReducer.h	Remove uses of deprecated std::random_shuffle in the LLVM code base. Reviewed as https://reviews.llvm.org/D29780.	2017-02-16 14:37:03 +00:00
LLVMBuild.txt	Wrap some long lines in LLVMBuild files. NFC	2015-06-12 18:44:57 +00:00
Miscompilation.cpp	Module::getOrInsertFunction is using C-style vararg instead of variadic templates.	2017-04-11 15:01:18 +00:00
OptimizerDriver.cpp	bugpoint: disabling symbolication of bugpoint-executed programs	2017-06-09 07:29:03 +00:00
ToolRunner.cpp	Allow use of spaces in Bugpoint ‘--compile-command’ argument	2017-03-02 16:50:48 +00:00
ToolRunner.h	bugpoint: Return Errors instead of passing around strings	2016-09-06 17:18:22 +00:00