clang will generate IR like this for input using packed bitfields;
very simple semantically, but it's a bit tricky to actually
generate good code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296080 91177308-0d34-0410-b5e6-96231b3b80d8
Correct handling of the following FileCheck options is implemented in
update_llc_test_checks.py and update_test_checks.py scripts:
1) -check-prefix (with a single dash)
2) -check-prefixes (with multiple prefixes)
Differential Revision: https://reviews.llvm.org/D28572
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292008 91177308-0d34-0410-b5e6-96231b3b80d8
- Remove unused imports.
- Initialize the variable 'name' before its (static) uses, and rename it to a
more descriptive name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286128 91177308-0d34-0410-b5e6-96231b3b80d8
Fixes crashes in tests such as test/CodeGen/X86/masked_gather_scatter.ll which
contains a RUN: with no pipe chain.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286125 91177308-0d34-0410-b5e6-96231b3b80d8
This patch adds support for including the avx512 mask register information in the mask/maskz versions of shuffle instruction comments.
This initial version just adds support for MOVDDUP/MOVSHDUP/MOVSLDUP to reduce the mass of test regenerations, other shuffle instructions can be added in due course.
Differential Revision: http://reviews.llvm.org/D21953
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274459 91177308-0d34-0410-b5e6-96231b3b80d8
The script now replace '.LCPI888_8' style asm symbols with the {{\.LCPI.*}} re pattern - this helps stop hardcoded symbols in 32-bit x86 tests changing with every edit of the file
Refreshed some tests to demonstrate the new check
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272488 91177308-0d34-0410-b5e6-96231b3b80d8
We lose the 'utils' directory name in our advertising line with
this change. We could retain that, but I don't see the point.
This removes a dependency for making the script apply to more than
'llc'. Ie, we'll want to change the script name if it works with
opt/clang too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264310 91177308-0d34-0410-b5e6-96231b3b80d8
The goal is to enhance this script to be used with opt and clang:
Break 'main' into functions and change variable names to be more
generic because we want to handle more than x86 asm output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264307 91177308-0d34-0410-b5e6-96231b3b80d8
The goal is to enhance this script to be used with opt and clang:
Group all of the regexes together, so it's easier to see what's going on.
This will make it easier to break main() up into pieces too.
Also, note that some of the regexes are for x86-specific asm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264197 91177308-0d34-0410-b5e6-96231b3b80d8
Strip dos line endings from llc generated files to allow the regex patterns to match them.
Ensure updated *.ll files are generated with unix style line endings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258987 91177308-0d34-0410-b5e6-96231b3b80d8
autogenerated.
Also update existing test cases which appear to be generated by it and
weren't modified (other than addition of the header) by rerunning it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253917 91177308-0d34-0410-b5e6-96231b3b80d8
asm and port the mmx vector shuffle test to it.
Not thrilled with how it handles the stack manipulation logic, but I'm
much less bothered by that than I am by updating the test manually. =]
If anyone wants to teach the test checks management script about stack
adjustment patterns, that'd be cool too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229268 91177308-0d34-0410-b5e6-96231b3b80d8
This is done in a bit of a strange way to use a multiline RE instead of
looping over the lines. Suggestions welcome here for a more pythonic way
of doing this as long as its reasonably fast.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228131 91177308-0d34-0410-b5e6-96231b3b80d8
with 'stress' to indicate that the specific output isn't interesting and
relax them to only check the last instruction (a ret).
I've updated the one test case that really uses this to name the one
'stress_test' which was actually producing output we can directly check.
With this, the script doesn't introduce noise when run over the v16 test
file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228033 91177308-0d34-0410-b5e6-96231b3b80d8
This script is currently specific to x86 and limited to use with very
small regression or feature tests using 'llc' and 'FileCheck' in
a reasonably canonical way. It is in no way general purpose or robust at
this point. However, it works quite well for simple examples. Here is
the intended workflow:
- Make a change that requires updating N test files and M functions'
assertions within those files.
- Stash the change.
- Update those N test files' RUN-lines to look "canonical"[1].
- Refresh the FileCheck lines for either the entire file or select
functions by running this script.
- The script will parse the RUN lines and run the 'llc' binary you
give it according to each line, collecting the asm.
- It will then annotate each function with the appropriate FileCheck
comments to check every instruction from the start of the first
basic block to the last return.
- There will be numerous cases where the script either fails to remove
the old lines, or inserts checks which need to be manually editted,
but the manual edits tend to be deletions or replacements of
registers with FileCheck variables which are fast manual edits.
- A common pattern is to have the script insert complete checking of
every instruction, and then edit it down to only check the relevant
ones.
- Be careful to do all of these cleanups though! The script is
designed to make transferring and formatting the asm output of llc
into a test case fast, it is *not* designed to be authoratitive
about what constitutes a good test!
- Commit the nice fresh baseline of checks.
- Unstash your change and rebuild llc.
- Re-run script to regenerate the FileCheck annotations
- Remember to re-cleanup these annotations!!!
- Check the diff to make sure this is sane, checking the things you
expected it to, and check that the newly updated tests actually pass.
- Profit!
Also, I'm *terrible* at writing Python, and frankly I didn't spend a lot
of time making this script beautiful or well engineered. But it's useful
to me and may be useful to others so I thought I'd send it out.
http://reviews.llvm.org/D5546
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