Duncan Sands 88c3df7afb Have GVN simplify instructions as it goes. For example, consider ... "%z = %x and %y". If GVN can prove that %y equals %x, then it turns this into "%z = %x and %x". With the new code, %z will be replaced with %x everywhere (and then deleted). Previously %z would be value numbered too, which is a waste of time. Also, while a clever value numbering algorithm would give %z the same value number as %x, our current one doesn't do so (at least I don't think it does). The new logic has an essentially equivalent effect to what you would get if %z was given the same value number as %x, i.e. it should make value numbering smarter. While there, get hold of target data once at the start rather than a gazillion times all over the place. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118923 91177308-0d34-0410-b5e6-96231b3b80d8		2010-11-12 21:10:24 +00:00
..
Analysis	Re-disable TBAA for now; it broke MultiSource/Applications/JM/lencod,	2010-11-12 11:21:08 +00:00
Archive	Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally."	2010-09-13 23:59:48 +00:00
AsmParser	Add a new 'hotpatch' attribute. This attribute will insert a two-byte no-op	2010-10-25 15:37:09 +00:00
Bitcode	Fix PR8494: when reading invalid bitcode, getTypeByID may return	2010-10-28 15:47:26 +00:00
CodeGen	typo (4th checkin for one fix)	2010-11-12 18:36:03 +00:00
CompilerDriver	Rename FindExecutable to PrependMainExecutablePath.	2010-11-03 16:14:16 +00:00
ExecutionEngine	Move the remaining attribute macros to systematic names based on the attribute	2010-10-23 08:40:19 +00:00
Linker	GetDLLSuffix: Remove the leading dot from LTDL_SHLIB_EXT.	2010-11-02 20:32:59 +00:00
MC	MCELF: Copy the symbol name only if we're going to modify it.	2010-11-12 19:26:04 +00:00
Support	Fix memory leak in StringRef::edit_distance(). 'Allocated' could be leaked on an early return.	2010-11-07 06:09:02 +00:00
System	Fix Whitespace.	2010-11-10 15:06:00 +00:00
Target	Add some missing isel predicates on def : pat patterns to avoid generating VFP vmla / vmls (they cause stalls). Disabling them in isel is properly not a right solution, I'll look into a proper solution next.	2010-11-12 20:32:20 +00:00
Transforms	Have GVN simplify instructions as it goes. For example, consider	2010-11-12 21:10:24 +00:00
VMCore	Doxygenify	2010-11-11 21:51:44 +00:00
Makefile