Kostya Serebryany bd2c711cdd [asan] extend asan-coverage (still experimental). ... - add a mode for collecting per-block coverage (-asan-coverage=2). So far the implementation is naive (all blocks are instrumented), the performance overhead on top of asan could be as high as 30%. - Make sure the one-time calls to __sanitizer_cov are moved to function buttom, which in turn required to copy the original debug info into the call insn. Here is the performance data on SPEC 2006 (train data, comparing asan with asan-coverage={0,1,2}): asan+cov0 asan+cov1 diff 0-1 asan+cov2 diff 0-2 diff 1-2 400.perlbench, 65.60, 65.80, 1.00, 76.20, 1.16, 1.16 401.bzip2, 65.10, 65.50, 1.01, 75.90, 1.17, 1.16 403.gcc, 1.64, 1.69, 1.03, 2.04, 1.24, 1.21 429.mcf, 21.90, 22.60, 1.03, 23.20, 1.06, 1.03 445.gobmk, 166.00, 169.00, 1.02, 205.00, 1.23, 1.21 456.hmmer, 88.30, 87.90, 1.00, 91.00, 1.03, 1.04 458.sjeng, 210.00, 222.00, 1.06, 258.00, 1.23, 1.16 462.libquantum, 1.73, 1.75, 1.01, 2.11, 1.22, 1.21 464.h264ref, 147.00, 152.00, 1.03, 160.00, 1.09, 1.05 471.omnetpp, 115.00, 116.00, 1.01, 140.00, 1.22, 1.21 473.astar, 133.00, 131.00, 0.98, 142.00, 1.07, 1.08 483.xalancbmk, 118.00, 120.00, 1.02, 154.00, 1.31, 1.28 433.milc, 19.80, 20.00, 1.01, 20.10, 1.02, 1.01 444.namd, 16.20, 16.20, 1.00, 17.60, 1.09, 1.09 447.dealII, 41.80, 42.20, 1.01, 43.50, 1.04, 1.03 450.soplex, 7.51, 7.82, 1.04, 8.25, 1.10, 1.05 453.povray, 14.00, 14.40, 1.03, 15.80, 1.13, 1.10 470.lbm, 33.30, 34.10, 1.02, 34.10, 1.02, 1.00 482.sphinx3, 12.40, 12.30, 0.99, 13.00, 1.05, 1.06 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199488 91177308-0d34-0410-b5e6-96231b3b80d8		2014-01-17 11:00:30 +00:00
..
AddressSanitizer.cpp	[asan] extend asan-coverage (still experimental).	2014-01-17 11:00:30 +00:00
BoundsChecking.cpp	fix PR17635: false positive with packed structures	2013-10-24 09:17:24 +00:00
CMakeLists.txt	Remove lib/Transforms/Instrumentation/ProfilingUtils.*	2013-10-14 16:46:46 +00:00
DataFlowSanitizer.cpp	Re-sort all of the includes with ./utils/sort_includes.py so that	2014-01-07 11:48:04 +00:00
DebugIR.cpp	Move the LLVM IR asm writer header files into the IR directory, as they	2014-01-07 12:34:26 +00:00
DebugIR.h	Revert "Give internal classes hidden visibility."	2013-09-11 18:05:11 +00:00
GCOVProfiling.cpp	llvm-cov: Replace size() with empty() in bool check.	2013-12-04 19:18:23 +00:00
Instrumentation.cpp	Re-sort all of the includes with ./utils/sort_includes.py so that	2014-01-07 11:48:04 +00:00
LLVMBuild.txt	Add proper dependencies to LLVMBuild.txt in llvm/lib.	2013-12-10 05:39:34 +00:00
Makefile
MaximumSpanningTree.h	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
MemorySanitizer.cpp	Add an explicit insert point argument to SplitBlockAndInsertIfThen.	2013-12-19 13:29:56 +00:00
ThreadSanitizer.cpp	[tsan] fix PR18146: sometimes a variable written into vptr could have an integer type (after other optimizations)	2013-12-05 15:03:02 +00:00