Subzero: Fix "make presubmit" for spec -Om1.

Subzero: Fix "make presubmit" for spec -Om1.

For the Om1 spec tests, we were generating commands like this:

  ./pydir/szbuild_spec2k.py -v -Om1 --target=x8632 -O2 --filetype=obj 253.perlbmk

where -Om1 and -O2 both appear.  Python's argparse allows an argument to be set multiple times, and the last one would win, i.e. -O2 is used instead of -Om1.

BUG= none
R=jpp@chromium.org

Committed: https://gerrit.chromium.org/gerrit/gitweb?p=native_client/pnacl-subzero.git;a=commit;h=c8f56a39aaa83bbe797945bf6d9a4faf2d180299

[Jim Stichnoth, 2016-03-04 04:14:45]

Description was changed from

==========
Subzero: Fix "make presubmit" for spec -Om1.

BUG= none
==========

to

==========
Subzero: Fix "make presubmit" for spec -Om1.

For the Om1 spec tests, we were generating commands like this:

  ./pydir/szbuild_spec2k.py -v -Om1 --target=x8632 -O2 --filetype=obj
253.perlbmk

where -Om1 and -O2 both appear.  Python's argparse allows an argument to be set
multiple times, and the last one would win, i.e. -O2 is used instead of -Om1.

BUG= none
==========

[Jim Stichnoth, 2016-03-04 04:14:45]

stichnot@chromium.org changed reviewers:
+ eholk@chromium.org, jpp@chromium.org, kschimpf@google.com, sehr@chromium.org

[John, 2016-03-04 15:07:42]

lgtm

[Jim Stichnoth, 2016-03-07 17:54:19]

Description was changed from

==========
Subzero: Fix "make presubmit" for spec -Om1.

For the Om1 spec tests, we were generating commands like this:

  ./pydir/szbuild_spec2k.py -v -Om1 --target=x8632 -O2 --filetype=obj
253.perlbmk

where -Om1 and -O2 both appear.  Python's argparse allows an argument to be set
multiple times, and the last one would win, i.e. -O2 is used instead of -Om1.

BUG= none
==========

to

==========
Subzero: Fix "make presubmit" for spec -Om1.

For the Om1 spec tests, we were generating commands like this:

  ./pydir/szbuild_spec2k.py -v -Om1 --target=x8632 -O2 --filetype=obj
253.perlbmk

where -Om1 and -O2 both appear.  Python's argparse allows an argument to be set
multiple times, and the last one would win, i.e. -O2 is used instead of -Om1.

BUG= none
R=jpp@chromium.org

Committed:
https://gerrit.chromium.org/gerrit/gitweb?p=native_client/pnacl-subzero.git;a...
==========

[Jim Stichnoth, 2016-03-07 17:54:20]

Committed patchset #1 (id:1) manually as
c8f56a39aaa83bbe797945bf6d9a4faf2d180299 (presubmit successful).