Hal Finkel 04fe990190 Improve BasicAA CS-CS queries ... BasicAA contains knowledge of certain intrinsics, such as memcpy and memset, and uses that information to form more-accurate answers to CallSite vs. Loc ModRef queries. Unfortunately, it did not use this information when answering CallSite vs. CallSite queries. Generically, when an intrinsic takes one or more pointers and the intrinsic is marked only to read/write from its arguments, the offset/size is unknown. As a result, the generic code that answers CallSite vs. CallSite (and CallSite vs. Loc) queries in AA uses UnknownSize when forming Locs from an intrinsic's arguments. While BasicAA's CallSite vs. Loc override could use more-accurate size information for some intrinsics, it did not do the same for CallSite vs. CallSite queries. This change refactors the intrinsic-specific logic in BasicAA into a generic AA query function: getArgLocation, which is overridden by BasicAA to supply the intrinsic-specific knowledge, and used by AA's generic implementation. This allows the intrinsic-specific knowledge to be used by both CallSite vs. Loc and CallSite vs. CallSite queries, and simplifies the BasicAA implementation. Currently, only one function, Mac's memset_pattern16, is handled by BasicAA (all the rest are intrinsics). As a side-effect of this refactoring, BasicAA's getModRefBehavior override now also returns OnlyAccessesArgumentPointees for this function (which is an improvement). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212572 91177308-0d34-0410-b5e6-96231b3b80d8		2014-07-08 23:16:49 +00:00
..
Analysis	Improve BasicAA CS-CS queries	2014-07-08 23:16:49 +00:00
Assembler	IR: Add COMDATs to the IR	2014-06-27 18:19:56 +00:00
Bindings
Bitcode	Add some test files for r211710.	2014-06-25 15:41:39 +00:00
BugPoint
CodeGen	[DAG] Teach how to combine a pair of shuffles into a single shuffle if the resulting mask is legal.	2014-07-08 15:22:29 +00:00
DebugInfo	Temporarily revert "Don't try to construct debug LexicalScopes hierarchy for functions that do not have top level debug information." as it appears to be breaking some LTO constructs.	2014-07-03 22:24:54 +00:00
ExecutionEngine	Fix this test to not write to the source tree, and instead to write to	2014-06-28 05:18:49 +00:00
Feature	IR: Add COMDATs to the IR	2014-06-27 18:19:56 +00:00
FileCheck
Instrumentation	[asan] Generate asm instrumentation in MC.	2014-07-07 13:57:37 +00:00
Integer
JitListener
Linker	IR: Add COMDATs to the IR	2014-06-27 18:19:56 +00:00
LTO	Change the default input for llvm-nm to be a.out instead of standard input	2014-06-23 20:27:53 +00:00
MC	[mips] Improve encapsulation of the .MIPS.abiflags implementation and limit scope of related enums	2014-07-08 10:11:38 +00:00
Object	Add support for BSD format Archive map symbols (aka the table of contents	2014-07-08 22:10:02 +00:00
Other	IR: Fold away compares between GV GEPs and GVs	2014-07-04 22:05:26 +00:00
TableGen
tools	[llvm-readobj] Fix output of MIPS GOT without local and global entries.	2014-07-05 19:28:49 +00:00
Transforms	Revert "GlobalDCE: Delete available_externally initializers if it allows removing the value the initializer is referring to."	2014-07-08 17:06:03 +00:00
Unit	Let test/Unit/lit.cfg add config.shlibdir to $PATH on DLL platforms like cygming.	2014-07-04 05:11:55 +00:00
Verifier	IR: Add COMDATs to the IR	2014-06-27 18:19:56 +00:00
YAMLParser
.clang-format
CMakeLists.txt
lit.cfg	Delete utils/FileUpdate.	2014-06-23 17:58:39 +00:00
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh