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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
Hal Finkel 595817eebe Enable generating PPC pre-increment (r+imm) instructions by default. 
It seems that this no longer causes test suite failures on PPC64 (after r157159),
and often gives a performance benefit, so it can be enabled by default.

llvm-svn: 157911
 2012-06-04 02:21:00 +00:00
Hal Finkel 601f555eee Add a missing PPC 64-bit stwu pattern. 
This seems to fix the remaining compile-time failures on PPC64 when
compiling with -enable-ppc-preinc.

llvm-svn: 157159
 2012-05-20 17:11:24 +00:00