[X86] Add -malign-double support

Description

[X86] Add -malign-double support

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

Details

Committed
rnkMay 3 2016, 7:58 PM
Differential Revision
D19734: [X86] Add -malign-double support
Parents
rL268472: Make ListScope and DictScope re-use the same code.
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