* For `-###`, `-o %t.o` is unnecessary if we don't specifically test the
output filename.
* --target= is the canonical spelling. -target is a legacy spelling which
unfortunately cannot be removed because there are too many uses.
* -no-canonical-prefixes uses the dereferenced absolute path for the cc1
command. For most tests "-cc1" is sufficient to identify the command line, no
need to specifically test the "clang" command, and -no-canonical-prefixes can
removed.
* --unwindlib= is the preferred spelling. -u is a short option taking a value,
which means a -uwindlib= typo cannot be detected.
I recommend that you take a look at linux-cross.cpp. Testing include paths and
library paths in one RUN line is sometimes more readable than having separate
include/library tests.
Having separate RUN lines for misc features like -fdata-sections
(`aix-data-sections.c`) is wasteful. It may be better testing multiple
options in a single RUN command.
Reviewed By: jsji
Differential Revision: https://reviews.llvm.org/D119309
Summary:
Set the TargetCPUName for AIX to default to pwr7, removing the setting
of it based on the major/minor of the OS version, which previously
set it to pwr4 for AIX 7.1 and earlier. The old code would also set it to
pwr4 when the OS version was not specified and with the change, it will
default it to pwr7 in all cases.
Author: Jamie Schmeiser <schmeise@ca.ibm.com>
Reviewed By:hubert.reinterpretcast (Hubert Tong)
Differential Revision: https://reviews.llvm.org/D107063
Summary: This patch changes the AIX default target CPU to power4 since this is the the lowest arch for the lowest OS level supported.
Reviewers: hubert.reinterpretcast, cebowleratibm, daltenty
Reviewed By: hubert.reinterpretcast
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D80835
Fangrui Song