Evgeniy Stepanov 4031b194ac [msan] Do not store origin for clean values. ... Instead of unconditionally storing origin with every application store, only do this when the shadow of the stored value is != 0. This change also delays instrumentation of stores until after the walk over function's instructions, because adding new basic blocks confuses InstVisitor. We only keep 1 origin value per 4 bytes of application memory. This change fixes the bug when a store of a single clean byte wiped the origin for the whole 4-byte area. Since stores of uninitialized values are relatively uncommon, this change improves performance of track-origins mode by 5% median and by up to 47% on specs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169490 91177308-0d34-0410-b5e6-96231b3b80d8		2012-12-06 11:41:03 +00:00
..
Analysis	Cost Model: change the default cost of control flow instructions (br / ret / ...) to zero.	2012-12-05 21:21:26 +00:00
Archive
Assembler	Fast-math test case for bitcode and textual reading/writing	2012-11-27 00:45:08 +00:00
Bindings/Ocaml
Bitcode
BugPoint
CodeGen	Remove intrinsic specific instructions for (V)MOVQUmr with patterns pointing to the normal instructions.	2012-12-06 07:31:16 +00:00
DebugInfo	Handle non-default array bounds.	2012-12-06 07:38:10 +00:00
ExecutionEngine
Feature	Remove the dependent libraries feature.	2012-11-27 09:55:56 +00:00
FileCheck	Fix a bug in FileCheck that wouldn't let define variables as follows:	2012-12-02 16:02:41 +00:00
Instrumentation	[msan] Do not store origin for clean values.	2012-12-06 11:41:03 +00:00
Integer	Remove the dependent libraries feature.	2012-11-27 09:55:56 +00:00
JitListener	Use the 'count' attribute to calculate the upper bound of an array.	2012-12-04 21:34:03 +00:00
Linker	Remove the dependent libraries feature.	2012-11-27 09:55:56 +00:00
MC	Correct ARM NOP encoding	2012-12-05 21:01:27 +00:00
Object
Other
Scripts
TableGen
tools	PR10867: Analogue of r169441 for when using external 'sh'. And actually run the test!	2012-12-05 23:15:33 +00:00
Transforms	fix a typo	2012-12-05 00:33:16 +00:00
Unit
Verifier
YAMLParser
CMakeLists.txt
lit.cfg
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh