Commit Graph

15 Commits

Author SHA1 Message Date
Mircea Trofin e2dc306b1a [utils] Fix UpdateTestChecks case where 2 runs differ for last label
Two RUN lines produce outputs that, each, have some common parts and
some different parts. The common parts are checked under label A. The
differing parts are associated to a function and checked under labels B
and C, respectivelly.
When build_function_body_dictionary is called for the first RUN line, it
will attribute the function body to labels A and C. When the second RUN
is passed to build_function_body_dictionary, it sees that the function
body under A is different from what it has. If in this second RUN line,
A were at the end of the prefixes list, A's body is still kept
associated with the first run's function.

When we output the function body (i.e. add_checks), we stop after
emitting for the first prefix matching that function. So we end up with
the wrong function body (first RUN's A-association).

There is no reason to special-case the last label in the prefixes list,
and the fix is to always clear a label association if we find a RUN line
where the body is different.

Differential Revision: https://reviews.llvm.org/D93078
2020-12-15 07:16:54 -08:00
CJ Johnson 69cd776e1e [CodeGen] Apply 'nonnull' and 'dereferenceable(N)' to 'this' pointer
arguments.

* Adds 'nonnull' and 'dereferenceable(N)' to 'this' pointer arguments
* Gates 'nonnull' on -f(no-)delete-null-pointer-checks
* Introduces this-nonnull.cpp and microsoft-abi-this-nullable.cpp tests to
  explicitly test the behavior of this change
* Refactors hundreds of over-constrained clang tests to permit these
  attributes, where needed
* Updates Clang12 patch notes mentioning this change

Reviewed-by: rsmith, jdoerfert

Differential Revision: https://reviews.llvm.org/D17993
2020-11-16 17:39:17 -08:00
Atmn Patel ac73b73c16 [clang] Add mustprogress and llvm.loop.mustprogress attribute deduction
Since C++11, the C++ standard has a forward progress guarantee
[intro.progress], so all such functions must have the `mustprogress`
requirement. In addition, from C11 and onwards, loops without a non-zero
constant conditional or no conditional are also required to make
progress (C11 6.8.5p6). This patch implements these attribute deductions
so they can be used by the optimization passes.

Differential Revision: https://reviews.llvm.org/D86841
2020-11-04 22:03:14 -05:00
David Greene 7c8bb409f3 [UpdateCCTestChecks] Include generated functions if asked
Add the --include-generated-funcs option to update_cc_test_checks.py so that any
functions created by the compiler that don't exist in the source will also be
checked.

We need to maintain the output order of generated function checks so that
CHECK-LABEL works properly.  To do so, maintain a list of functions output for
each prefix in the order they are output.  Use this list to output checks for
generated functions in the proper order.

Differential Revision: https://reviews.llvm.org/D83004
2020-09-18 06:34:59 -05:00
sstefan1 7128e64706 [UpdateTestChecks] include { in function signature check line
After D85099, if we have attribute group in the function signature that hasn't
been seen before, and later a callsite with the same attribute group, filecheck will evaluate
the first attribute group to for example '#0 {'. We now include { in the args_and_sig group to avoid this.

Differential Revision: https://reviews.llvm.org/D86769
2020-08-28 23:44:03 +02:00
Johannes Doerfert 97ce7fd89f [UpdateTestChecks] Match unnamed values like "@[0-9]+" and "![0-9]+"
With this patch we will match most *uses* of "temporary" named things in
the IR via regular expressions, not their name at creation time. The new
"values" we match are:
  - "unnamed" globals: `@[0-9]+`
  - debug metadata: `!dbg ![0-9]+`
  - loop metadata: `!loop ![0-9]+`
  - tbaa metadata: `!tbaa ![0-9]+`
  - range metadata: `!range ![0-9]+`
  - generic metadata: `metadata ![0-9]+`
  - attributes groups: `#[0-9]`

We still don't match the declarations but that can be done later. This
patch can introduce churn when existing check lines contain the old
hardcoded versions of the above "values". We can add a flag to opt-out,
or opt-in, if necessary.

Reviewed By: arichardson, MaskRay

Differential Revision: https://reviews.llvm.org/D85099
2020-08-12 01:04:16 -05:00
Alex Richardson e150d2cab8 [update_cc_test_checks.py] Add test for D84511
Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D85115
2020-08-06 09:15:56 +01:00
sstefan1 cf11050696 [Utils][Fix] remove unnecessary ; at the end 2020-07-19 20:48:28 +02:00
sstefan1 937bad3594 [Utils] Check function attributes in update_test_checks
Summary:
This introduces new flag to the update_test_checks and
update_cc_test_checks that allows for function attributes
to be checked in a check-line. If the flag is not set,
the behavior should remain the same.

Reviewers: jdoerfert

Subscribers: arichardson, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D83629
2020-07-19 20:07:24 +02:00
Alex Richardson a80afc0328 [UpdateTestChecks] Add UTC_ARGS support for update_{llc,cc}_test_checks.py
https://reviews.llvm.org/D69701 added support for on-the-fly argument
changes for update scripts. I recently wanted to keep some manual check
lines in a test generated by update_cc_test_checks.py in our CHERI fork, so
this commit adds support for UTC_ARGS in update_cc_test_checks.py. And since
I was refactoring the code to be in common.py, I also added it for
update_llc_test_checks.py.

Reviewed By: jdoerfert, MaskRay
Differential Revision: https://reviews.llvm.org/D78478
2020-07-08 11:00:10 +01:00
Alex Richardson 3ce0e92f45 [update_cc_test_checks.py] Handle C++ methods
Previously the script only handled C input, this change extends the JSON
parsing to to also include C++ function types such as methods, constructors
and destructors.

Reviewed By: MaskRay
Differential Revision: https://reviews.llvm.org/D80914
2020-06-18 18:09:21 +01:00
Alex Richardson ead7a8becc [update_cc_test_checks.py] Correctly skip function definitions
Function declarations can in fact have an 'inner' node that lists the
ParmVarDecls. It seems like either the JSON output has changed or that I
tested the original JSON parsing change with test files that only have
function definitions without arguments.

Reviewed By: MaskRay
Differential Revision: https://reviews.llvm.org/D80913
2020-06-18 18:09:21 +01:00
Sanjay Patel e5b8772756 [utils] change default nameless value to "TMP"
This is effectively reverting rGbfdc2552664d to avoid test churn
while we figure out a better way forward.

We at least salvage the warning on name conflict from that patch
though.

If we change the default string again, we may want to mass update
tests at the same time. Alternatively, we could live with the poor
naming if we change -instnamer.

This also adds a test to LLVM as suggested in the post-commit
review. There's a clang test that is also affected. That seems
like a layering violation, but I have not looked at fixing that yet.

Differential Revision: https://reviews.llvm.org/D80584
2020-06-01 06:54:45 -04:00
Sanjay Patel dfbfdc96f9 [utils] update expected strings in tests; NFC
The script was changes with:
bfdc255266
2020-05-31 11:07:22 -04:00
Alex Richardson 61dd0603bd Move update_cc_test_checks.py tests to clang
Having tests that depend on clang inside llvm/ are not a good idea since
it can break incremental `ninja check-llvm`.

Fixes https://llvm.org/PR44798

Reviewed By: lebedev.ri, MaskRay, rsmith
Differential Revision: https://reviews.llvm.org/D74051
2020-02-14 14:39:55 +00:00