Cameron Zwarich b2fd770136 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>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127317 91177308-0d34-0410-b5e6-96231b3b80d8

2011-03-09 05:43:05 +00:00

..

Hello

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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

Makefile

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