The -malign-double flag causes i64 and f64 types to have alignment 8
instead of 4. On x86-64, the behavior of -malign-double is enabled by default.
Rebases and cleans phosek's work here: http://reviews.llvm.org/D12860
Patch by Sean Klein
Reviewers: rnk
Subscribers: rnk, jfb, dschuff, phosek
Differential Revision: http://reviews.llvm.org/D19734
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@268473 91177308-0d34-0410-b5e6-96231b3b80d8
Reid Kleckner