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4 Commits

Author SHA1 Message Date
Manman Ren 1a5ff287fd TBAA: remove !tbaa from testing cases if not used. 
This will make it easier to turn on struct-path aware TBAA since the metadata
format will change.

llvm-svn: 180796
 2013-04-30 17:52:57 +00:00
Hal Finkel 8d7fbc9dad Enable unaligned memory access on PPC for scalar types 
Unaligned access is supported on PPC for non-vector types, and is generally
more efficient than manually expanding the loads and stores.

A few of the existing test cases were using expanded unaligned loads and stores
to test other features (like load/store with update), and for these test cases,
unaligned access remains disabled.

llvm-svn: 177160
 2013-03-15 15:27:13 +00:00
Nadav Rotem 70409991bc During the CodeGenPrepare we often lower intrinsics (such as objsize) 
and allow some optimizations to turn conditional branches into unconditional.
This commit adds a simple control-flow optimization which merges two consecutive
basic blocks which are connected by a single edge. This allows the codegen to
operate on larger basic blocks.

rdar://11973998

llvm-svn: 161852
 2012-08-14 05:19:07 +00:00
Hal Finkel ca542beffe Add support for generating reg+reg (indexed) pre-inc loads on PPC. 
llvm-svn: 158823
 2012-06-20 15:43:03 +00:00