Chandler Carruth 35c4e071be Teach the load analysis driving core instcombine logic and other bits of ... logic to look through pointer casts, making them trivially stronger in the face of loads and stores with intervening pointer casts. I've included a few test cases that demonstrate the kind of folding instcombine can do without pointer casts and then variations which obfuscate the logic through bitcasts. Without this patch, the variations all fail to optimize fully. This is more important now than it has been in the past as I've started moving the load canonicialization to more closely follow the value type requirements rather than the pointer type requirements and thus this needs to be prepared for more pointer casts. When I made the same change to stores several test cases regressed without logic along these lines so I wanted to systematically improve matters first. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220178 91177308-0d34-0410-b5e6-96231b3b80d8		2014-10-20 00:24:14 +00:00
..
Analysis	Teach the load analysis driving core instcombine logic and other bits of	2014-10-20 00:24:14 +00:00
AsmParser
Bitcode	correct const-ness with auto and dyn_cast	2014-10-15 17:45:13 +00:00
CodeGen	[PBQP] Replace the interference-constraints algorithm with a faster version	2014-10-18 17:26:07 +00:00
DebugInfo	Add couple of missing 'override' keyword. NFC.	2014-10-10 17:34:30 +00:00
ExecutionEngine	[MCJIT] Replace memcpy with readBytesUnaligned in RuntimeDyldMachOI386.	2014-10-10 23:07:09 +00:00
IR	[Stackmaps] Enable invoking the patchpoint intrinsic.	2014-10-17 17:39:00 +00:00
IRReader
LineEditor
Linker
LTO
MC	Add back commits r219835 and a fixed version of r219829.	2014-10-17 01:48:58 +00:00
Object	[llvm-objdump] Fix mach-o binding decompression error	2014-10-18 01:21:02 +00:00
Option
ProfileData	Reduce double set lookups. NFC.	2014-10-10 15:32:50 +00:00
Support	Introduce LLVMParseCommandLineOptions C API function.	2014-10-16 22:47:52 +00:00
TableGen
Target	Use triple predicate functions instead of checking values directly. NFC.	2014-10-19 00:39:30 +00:00
Transforms	Teach the load analysis driving core instcombine logic and other bits of	2014-10-20 00:24:14 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile