Andrew Trick c908b43d9f SCEVExpander fixes. Affects LSR and indvars. ... LSR has gradually been improved to more aggressively reuse existing code, particularly existing phi cycles. This exposed problems with the SCEVExpander's sloppy treatment of its insertion point. I applied some rigor to the insertion point problem that will hopefully avoid an endless bug cycle in this area. Changes: - Always used properlyDominates to check safe code hoisting. - The insertion point provided to SCEV is now considered a lower bound. This is usually a block terminator or the use itself. Under no cirumstance may SCEVExpander insert below this point. - LSR is reponsible for finding a "canonical" insertion point across expansion of different expressions. - Robust logic to determine whether IV increments are in "expanded" form and/or can be safely hoisted above some insertion point. Fixes PR11783: SCEVExpander assert. llvm-svn: 148535		2012-01-20 07:41:13 +00:00
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Analysis	SCEVExpander fixes. Affects LSR and indvars.	2012-01-20 07:41:13 +00:00
Archive	Support/FileSystem: Add file_magic and move a vew clients over to it.	2011-12-13 23:17:12 +00:00
AsmParser	Add 'llvm_unreachable' to passify GCC's understanding of the constraints	2012-01-10 18:08:01 +00:00
Bitcode	Add 'llvm_unreachable' to passify GCC's understanding of the constraints	2012-01-10 18:08:01 +00:00
CodeGen	When lowering the 'resume' instruction, look to see if we can eliminate the	2012-01-20 00:53:28 +00:00
DebugInfo	Unweaken vtables as per http://llvm.org/docs/CodingStandards.html#ll_virtual_anch	2011-12-20 02:50:00 +00:00
ExecutionEngine	Fix MCJIT memory leak of owned TargetMachine.	2012-01-17 23:08:46 +00:00
Linker	Link symbols with different visibilities according to the rules in the	2012-01-05 23:02:01 +00:00
MC	Add a dump() implementation for sub-instruction MCOperands.	2012-01-19 19:32:20 +00:00
Object	Remove unused variables.	2011-12-25 01:20:19 +00:00
Support	Add support for the gnueabihf environment. Patch by Sylvestre Ledru.	2012-01-18 23:35:29 +00:00
TableGen	Removing unused default switch cases in switches over enums that already account for all enumeration values explicitly.	2012-01-16 23:24:27 +00:00
Target	Add support for selecting 256-bit PALIGNR.	2012-01-20 05:53:00 +00:00
Transforms	SCEVExpander fixes. Affects LSR and indvars.	2012-01-20 07:41:13 +00:00
VMCore	Provide better messages in llvm_unreachable.	2012-01-17 07:00:13 +00:00
CMakeLists.txt	Move TableGen's parser and entry point into a library	2011-10-01 16:41:13 +00:00
LLVMBuild.txt	LLVMBuild: Introduce a common section which currently has a list of the	2011-12-12 22:45:54 +00:00
Makefile	Remove more of llvmc and dependencies.	2011-09-20 00:34:27 +00:00