Commit Graph

2 Commits

Author SHA1 Message Date
Chandler Carruth 3e4273dd0c When rewriting the pointer operand to a load or store which has
alignment guarantees attached, re-compute the alignment so that we
consider offsets which impact alignment.

llvm-svn: 164690
2012-09-26 10:45:28 +00:00
Chandler Carruth 871ba7249c Teach all of the loads, stores, memsets and memcpys created by the
rewriter in SROA to carry a proper alignment. This involves
interrogating various sources of alignment, etc. This is a more complete
and principled fix to PR13920 as well as related bugs pointed out by Eli
in review and by inspection in the area.

Also by inspection fix the integer and vector promotion paths to create
aligned loads and stores. I still need to work up test cases for
these... Sorry for the delay, they were found purely by inspection.

llvm-svn: 164689
2012-09-26 10:27:46 +00:00