tree 30a91333e9a55c63b3aea9e8c19a8293cc024c96
parent 83b8036b4e0fb45bfc0bb7e237279dce57bea42e
author Matt Wala <wala@chromium.org> 1405626091 -0700
committer Matt Wala <wala@chromium.org> 1405626091 -0700

Lower the rest of the vector arithmetic operations.

The instructions emitted by the lowering operations require memory
operands to be aligned to 16 bytes. Since there is no support for
aligning memory operands in Subzero, do the arithmetic in registers for
now.

Add vector arithmetic to the arith crosstest. Pass the -mstackrealign
parameter to the crosstest clang so that llc code called back from
Subzero code (helper calls) doesn't assume that the stack is aligned at
the entry to the call.

BUG=none
R=jvoung@chromium.org, stichnot@chromium.org

Review URL: https://codereview.chromium.org/397833002