[kudu-CR] codegen: set JIT target to running host

["Todd Lipcon (Code Review)" <ge...@cloudera.org>]

Todd Lipcon has uploaded a new change for review.

  http://gerrit.cloudera.org:8080/2653

Change subject: codegen: set JIT target to running host
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codegen: set JIT target to running host

This slight tweak to codegen tells the JIT engine to generate code for the
currently running host.

I looked at the generated assembly from codegen-test, and it's unchanged for
integer projections. When I added a string column to the projection, this patch
saved two instructions in the generated code by using some AVX instructions.

Change-Id: I49c26696db0bfd819f918aec27ff5d65a55dcc93
---
M src/kudu/codegen/codegen-test.cc
M src/kudu/codegen/module_builder.cc
2 files changed, 19 insertions(+), 1 deletion(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/53/2653/1
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I49c26696db0bfd819f918aec27ff5d65a55dcc93
Gerrit-PatchSet: 1
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Todd Lipcon <to...@apache.org>