Cameron Zwarich e0b4705b03 Add support to scalar replacement for partial vector accesses of an alloca, e.g. ... a union of a float, <2 x float>, and <4 x float>. This mostly comes up with the use of vector intrinsics, especially in NEON when programmers know the layout of the register file. This enables codegen to eliminate a lot of the subregister traffic it would otherwise generate. This commit only enables this for a small number of floating-point cases, but a lot more integer cases. I assume this is okay for all ports, but I did not do extensive testing of the quality of code involving i512 vectors and the like. If there is a use case where this generates worse code than before, let me know and we can scale it back. This fixes <rdar://problem/9036264>. llvm-svn: 127317		2011-03-09 05:43:05 +00:00
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InstCombine	PR9346: Prevent SimplifyDemandedBits from incorrectly introducing	2011-03-09 01:28:35 +00:00
Instrumentation	Implementation of path profiling.	2011-01-29 01:09:53 +00:00
IPO	Don't internalize available_externally functions. We already did the right	2011-03-06 23:41:34 +00:00
Scalar	Add support to scalar replacement for partial vector accesses of an alloca, e.g.	2011-03-09 05:43:05 +00:00
Utils	PR9420; an instruction before an unreachable is guaranteed not to have any	2011-03-09 00:48:33 +00:00
CMakeLists.txt	Move library stuff out of the toplevel CMakeLists.txt file.	2011-02-18 22:06:14 +00:00
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