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llvm-mirror/test/Instrumentation
Derek Bruening a636185af1 [esan|wset] Optionally assume intra-cache-line accesses
Summary:
Adds an option -esan-assume-intra-cache-line which causes esan to assume
that a single memory access touches just one cache line, even if it is not
aligned, for better performance at a potential accuracy cost.  Experiments
show that the performance difference can be 2x or more, and accuracy loss
is typically negligible, so we turn this on by default.  This currently
applies just to the working set tool.

Reviewers: aizatsky

Subscribers: vitalybuka, zhaoqin, kcc, eugenis, llvm-commits

Differential Revision: http://reviews.llvm.org/D20978

llvm-svn: 271743
2016-06-03 22:29:52 +00:00
..
AddressSanitizer [asan] add option to set shadow mapping offset 2016-05-06 10:25:22 +00:00
BoundsChecking
DataFlowSanitizer [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
EfficiencySanitizer [esan|wset] Optionally assume intra-cache-line accesses 2016-06-03 22:29:52 +00:00
InstrProfiling [profile] value profiling bug fix -- missing icall targets in profile-use 2016-06-02 16:33:41 +00:00
MemorySanitizer [X86] Remove SSE/AVX unaligned store intrinsics as clang no longer uses them. Auto upgrade to native unaligned store instructions. 2016-05-30 23:15:56 +00:00
SanitizerCoverage DebugInfo: Remove MDString-based type references 2016-04-23 21:08:00 +00:00
ThreadSanitizer [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00