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Commit Graph

2 Commits

Author SHA1 Message Date
Manman Ren
0b37dd0efc 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
c72f2476a9 Use virtual base registers on PPC
On PowerPC, non-vector loads and stores have r+i forms; however, in functions
with large stack frames these were not being used to access slots far from the
stack pointer because such slots were out of range for the signed 16-bit
immediate offset field. This increases register pressure because we need a
separate register for each offset (when the r+r form is used). By enabling
virtual base registers, we can deal with large stack frames without unduly
increasing register pressure.

llvm-svn: 179105
2013-04-09 17:27:09 +00:00