What's Changed

Breaking Changes 🛠

• Allow extending ToP4, clean its constructors by @vlstill in #4899

Changes to the Compiler Core

• Reduce the number of memory allocations in def-use by @asl in #4904
• Split the start state more conservatively when a parser contains decl initializers by @kfcripps in #4902
• Add missed include by @asl in #4915
• Only process IR::Paths inside of IR::ParserState contexts in MoveInitializers by @kfcripps in #4910
• Factor common base ExternCall for ExternMethod/ExternFunction by @ChrisDodd in #4898
• [#4883] Remove unused actions whose @name name starts with "__" by @kfcripps in #4900
• Allow --Wdisable to take precedence over --Werror for warning messages by @kfcripps in #4894
• Allow keywords to be used as annotation names. by @ChrisDodd in #4897
• Avoid copying out/inout args when inlining functions by @ChrisDodd in #4877
• Clean up the P4-14 dependent code. by @fruffy in #4925
• Fix Type_Indexed::at by @ChrisDodd in #4927
• Make --top4 matching case-insensitive. by @fruffy in #4924

Changes to the TC Back End

• Added "inst_type" field in introspection.json. by @komaljai in #4905

Changes to the P4Tools Back End

• [P4Tools] Also track invocations in the timer to measure per function statistics. by @fruffy in #4929
• [P4Testgen] Unify compiler options and tool options. Ensure options context is always initialized correctly. by @fruffy in #4787
• [P4Tools] Clean up use of ::P4 prefix for errors, warnings, and logs. by @fruffy in #4930

Other Changes

• Bump peter-evans/create-pull-request from 6 to 7 by @dependabot in #4903
• Docs: Update Documentation Instructions by @AdarshRawat1 in #4875
• Remove the workaround that was required for MacOS CI installation. by @fruffy in #4921
• Docs : Changelogs release update for v1.2.4.15 by @AdarshRawat1 in #4934
• Automated Release v1.2.4.16 by @github-actions in #4935

Full Changelog: v1.2.4.15...v1.2.4.16

What's Changed

Breaking Changes 🛠

• Fixup/cleanup IR::Type::width_bits() by @ChrisDodd in #4858
• Promote P4 to be THE project-wise top-level namespace by @qobilidop in #4825

P4 Specification Implementation

• Allow concatenation of string literals at compile time by @vlstill in #4856

Changes to the Compiler Core

• Ensure correct overload for diagnose() is called even in Transform context by @asl in #4830
• Fix ASAN issue in lib/cstring. by @matthewtlam in #4865
• Ensure we are finding proper operator<< during debug printing by @asl in #4860
• Fix linter complaints in the validateStringAnnotations pass and enable -werror for MacOS. by @fruffy in #4881
• Trim overlong source fragments in error messages by @ChrisDodd in #4885
• Pass to reduce added flags from RemoveReturn by @ChrisDodd in #4878
• Add operator< to some compiler classes by @fruffy in #4851
• Make isSystemFile() part of the parser options file. by @fruffy in #4888
• Add empty block for trailing case(s) with no code. by @ChrisDodd in #4889
• Silence -Wswitch-enum from bison generated file by @ChrisDodd in #4886
• Sync dump.h with dump.cpp by @qobilidop in #4896
• Make type checking true read-only visitor by @asl in #4829

Changes to the Control Plane

• Set the initial default action for tables when generating a P4Info. by @fruffy in #4773

Changes to the BMv2 Back Ends

• Fix incorrect BMv2 include. by @fruffy in #4843

Changes to the TC Back End

• Support of Digest extern in P4TC by @komaljai in #4842
• Support of is_net_port and is_host_port externs. by @komaljai in #4873
• Reduce extern parameters size to 64 bytes by @vbnogueira in #4880
• Remove priority field from ternary table's action by @vbnogueira in #4879
• P4TC - Support for Meter and DirectMeter extern by @komaljai in #4884

Changes to the P4Tools Back End

• [P4Testgen] Represent bits of width zero as an empty string. by @fruffy in #4852
• Reenable compilation tests for P4Smith. by @zzmic in #4791
• [P4Tools] Clean up the P4Tools GTest infrastructure. by @fruffy in #4841
• [P4Smith] Remove a stray print in the smith code. by @fruffy in #4891

Other Changes

• Docs : Changelogs release update for v1.2.4.14 by @AdarshRawat1 in #4849
• Feat: PR Preview Workflow via GitHub Pages by @AdarshRawat1 in #4848
• Fix: PR Preview URL to Use Base Repository by @AdarshRawat1 in #4855
• Bump Documentation build workflow action from Doxygen v1.11.0 to v1.12.0 by @AdarshRawat1 in #4861
• Bump actions/github-script from 6 to 7 by @dependabot in #4864
• Docs : Content Organization and Documentation Updates by @AdarshRawat1 in #4850
• [p4fmt]: Add a pretty printer for p4fmt. by @snapdgn in #4862
• Docs:Content Organization & Add 'Frontend' and 'Midend' Sections by @AdarshRawat1 in #4876
• Update BDWGC. by @fruffy in #4868
• Remove 4 tests that are completely identical to other tests that remain by @jafingerhut in #4890
• simplifyDefUse: Report the specific uninitialized struct field by @ChrisDodd in #4892
• Update namespace usage in .gdbinit by @qobilidop in #4895
• Automated Release v1.2.4.15 by @github-actions in #4893

Full Changelog: v1.2.4.14...v1.2.4.15

What's Changed

Breaking Changes 🛠

• P4C Options cleanup by @fruffy in #4790
• Make preprocess and getIncludePath const functions. by @fruffy in #4785

P4 Specification Implementation

• Forbid case-after-default, tweak error messages by @vlstill in #4831

Changes to the Compiler Core

• Improve cstring cache internals by @asl in #4780
• Fix loop unrolling bugs related to issue4739 by @ChrisDodd in #4783
• Make HasTableApply a resolution context, so it could resolve declarations on its own if desired by @asl in #4781
• [#4661] Do not unconditionally mark extern method calls as compile-time constants. by @kfcripps in #4726
• Fix loc_t::operator< when parent is nullptr by @kfcripps in #4798
• Introduce string map class and switch to it by @asl in #4774
• Require type decl in for..in loops by @ChrisDodd in #4808
• Add UnrollLoops::Policy to control unrolling per backend by @ChrisDodd in #4809
• Extend & fix FunctionInliner by @asl in #4801
• [NFC] Split TypeInference by @asl in #4814
• Map written LocationSets to program locations (loc_t) instead of IR::Expression*s by @kfcripps in #4797
• Store exact type, not one of the base class to inhibit assertion by @asl in #4818
• misc fixes/additions by @ChrisDodd in #4820
• Remove multimap usage from memoizeDeclsByName by @asl in #4821
• Make don't care args action-local when used in actions by @kfcripps in #4817
• Add string literal support in constant folding. by @fruffy in #4837
• Truncate shifts to the maximum constant bit-width in the constant folding pass. by @fruffy in #4836
• Make SymbolicVariable part of the core IR. by @fruffy in #4840

Changes to the BMv2 Back Ends

• Move ProgramStructure out the BMv2 folder such that it can be used in other back ends. by @fruffy in #4770
• Add skeleton implementation for BMv2 PNA Backend by @rupesh-chiluka-marvell in #4729

Changes to the TC Back End

• Support of InternetChecksum in P4TC by @komaljai in #4782
• Fix broken CI runs because missing override in TC code. by @fruffy in #4794

Changes to the P4Tools Back End

• P4Testgen logging cleanups. by @fruffy in #4684
• For-loop and for-in-loop support for P4Smith by @zzmic in #4772
• [P4Testgen] Refactor the P4Testgen extern implementation. by @fruffy in #4728
• [P4Testgen] Initialize the testgen targets when invoking the library API by @fruffy in #4706
• [P4Testgen] Pass compiler options as argument, instead of getting them with static methods. by @fruffy in #4833
• [P4Testgen] Hotfix for failing P4Testgen benchmark test. by @fruffy in #4839
• [P4Testgen] Fix problems with the reachability pass. by @fruffy in #4789
• Replace boost::container::flat_map with absl::btree_map in P4Tools. by @fruffy in #4768

Other Changes

• Docs : Changelogs release update for v1.2.4.13 by @AdarshRawat1 in #4788
• Docs : Add Home page for documentation by @AdarshRawat1 in #4764
• P4Fmt reference checker by @snapdgn in #4778
• Update the PINS programs. by @fruffy in #4799
• Add test program to verify compile-time error if no type in for-in loop by @jafingerhut in #4812
• Add tests from issue #4507 by @kfcripps in #4816
• Update README.md instructions for running doxygen by @jafingerhut in #4807
• Fix: Links in Generated Documentation by @AdarshRawat1 in #4793
• Minor Fix: links in P4Smith page by @AdarshRawat1 in #4828
• Add missing BUILD file dependencies. by @matthewtlam in #4846
• Minor fix : Heading of portable_common by @AdarshRawat1 in #4847
• Automated Release v1.2.4.14 by @github-actions in #4844

New Contributors

• @zzmic made their first contribution in #4772
• @rupesh-chiluka-marvell made their first contribution in #4729
• @matthewtlam made their first contribution in #4846

Full Changelog: v1.2.4.13...v1.2.4.14

What's Changed

Breaking Changes 🛠

• Get rid of implicit char* => cstring conversions by @asl in #4694
• Format-related string fixes and refactorings by @asl in #4704
• Get rid of custom implementation of Utils::PathName by @asl in #4721
• cstring-related cleanup, switch to std::string_view for some cstring API by @asl in #4716
• Remove ReferenceMap recalculation (almost) everywhere and switch to more fine-grained solutions by @asl in #4757

Changes to the Compiler Core

• Refactor error_helper and around by @asl in #4686
• Add freestanding RTTI::to, RTTI::is, RTTI::isAny by @vlstill in #4696
• More compilation fixes for C++20: hvec_map and copy_bitref by @fruffy in #4703
• Add a constant folding pass after inlining by @mihaibudiu in #4727
• [#4006] Remove confusing warning when the same header is extracted multiple times in a parse path by @kfcripps in #4725
• Emit true and false instead of 1 and 0 for BoolLiteral dbprint. by @fruffy in #4741
• [#4760] Create empty SetOfLocations for don't care arguments passed as action out args by @kfcripps in #4762
• Delete unused RemoveComplexExpressions pass. by @fruffy in #4771

Changes to the TC Back End

• P4TC - Support for DirectCounter extern by @komaljai in #4711
• Implementation of Counter extern in p4tc by @komaljai in #4734
• Make sure compiler_meta__->drop starts out false by @vbnogueira in #4722

Changes to the DPDK Back End

• Update some stale DPDK error reference files. by @fruffy in #4705
• Fix a nullptr access in the DPDK back end. by @fruffy in #4712

Changes to the P4Tools Back End

• Add P4Smith, a random program generator to the P4Tools framework by @fruffy in #4182
• [P4Smith] Fix broken links in Smith README by @fruffy in #4754

Other Changes

• Configure: DOXYGEN for documentation generation by @AdarshRawat1 in #4701
• Add a formatter binary skeleton as P4C back end by @snapdgn in #4710
• Invalid include fix in p4fmt.cpp by @snapdgn in #4718
• Test building P4C with ENABLE_GTESTS=OFF in CI by @qobilidop in #4719
• Fix up the Bazel sed command. by @fruffy in #4720
• Docs : Configure Doxygen and GitHub pages deploy Action by @AdarshRawat1 in #4702
• Fix : Compatibility issues with Doxygen version in runner and configuration by @AdarshRawat1 in #4732
• Docs : Update community link from Slack to Zulip by @AdarshRawat1 in #4735
• [Docs] Add initial CHANGELOG.md with changelogs from previous release by @AdarshRawat1 in #4708
• Docs : Configuring Doxygen Awesome CSS by @AdarshRawat1 in #4737
• Minor Fix: Graphs Backend Example Images by @AdarshRawat1 in #4749
• Fix spurious P4Testgen failure occuring because of a problem when running PTF tests in parallel. by @fruffy in #4750
• Make different Markdown files have different titles in Doxygen output by @jafingerhut in #4745
• Bump docker/build-push-action from 5 to 6 by @dependabot in #4751
• Docs: Fixing diagram paths in generated docs by @AdarshRawat1 in #4755
• Docs: Add theme dependency and instructions by @AdarshRawat1 in #4747
• Add back in heading for P4Smith README file by @jafingerhut in #4756
• Docs: Initial sequence of pages in Documentation by @AdarshRawat1 in #4758
• Docs: Update compiler file structure by @AdarshRawat1 in #4761
• Fix naming of CMake Release configuration. by @fruffy in #4765
• Simplify dependabot label generation. by @fruffy in #4766
• Add DCO description to the contribution guidelines. by @fruffy in #4743
• Add a signature for the release bot for DCO support. by @fruffy in #4769
• Automated Release v1.2.4.13 by @github-actions in #4767

New Contributors

• @snapdgn made their first contribution in #4710

Full Changelog: v1.2.4.12...v1.2.4.13

What's Changed

Breaking Changes 🛠

• Replace IR::getBitType with IR::Type_Bits::get. by @fruffy in #4669
• Make the new operator protected for some IR types. by @fruffy in #4670

P4 Specification Implementation

• [#4656] Explicitly delay constant folding of only action enum IR::SwitchCase label expressions, instead of delaying constant folding of all IR::Mux expressions by @kfcripps in #4657
• Changes for for loops by @ChrisDodd in #4562

Changes to the Compiler Core

• Use check_include_file_cxx instead of check_include_file to find mm_malloc.h by @fruffy in #4649
• Move IRUtils Literal get functions to the respective IR members. Add stringliteral get function. by @fruffy in #4623
• Improve error message when shifting int by non-const by @vlstill in #4653
• Fixes to lib/hash and lib/big_int_util. by @fruffy in #4655
• Link against the Boehm-Demers-Weiser Garbage Collector using FetchContent. by @fruffy in #3930
• Explicitly include hash.hpp for Ubuntu 18.04. by @fruffy in #4664
• RemoveUnusedDeclarations - make helpers protected by @ChrisDodd in #4668
• Generalization & minor refactoring in RenameMap by @vlstill in #4677
• Add string_view and string conversion operators and functions to cstring by @vlstill in #4676
• Facilitate inheritance from RenameSymbols pass, deduplicate code by @vlstill in #4682
• Set type for LAnd, LOr, LNot to be Type_Boolean if unknown. by @fruffy in #4612
• Improve BUG_CHECK internals by @asl in #4678
• Workaround for gcc-11.4/draft 2x spec flaw by @ChrisDodd in #4679
• irgen: Generate explicit instantiations by @ChrisDodd in #4681

Changes to the Control Plane

• Add support for new platform property annotations for P4Runtime. by @jonathan-dilorenzo in #4611

Changes to the eBPF Back Ends

• Fix missing declaration of custom externs in the generated eBPF/uBPF header file. by @fruffy in #4644

Changes to the TC Back End

• Support for Register Extern in P4TC by @komaljai in #4671
• Added changes for default hit actions for tc backend by @Sosutha in #4673
• Fix extern pipeline name in template file by @komaljai in #4675

Changes to the P4Tools Back End

• Merge TestgenCompilerTarget into TestgenTarget. by @fruffy in #4650

Other Changes

• P4Tc - Change parameter for kfunc 'bpf_p4tc_entry_create_on_miss' by @komaljai in #4637
• Add support for a clang-tidy linter to CMake. Add a files utility function to P4CUtils.cmake. by @fruffy in #4254
• Only emit the warning on EXPORT_COMPILE_COMMANDS when there are clang-tidy files to lint. by @fruffy in #4665
• Aggressively clean up the Protobuf CMake dependency. by @fruffy in #4543
• Remove no-longer-used *.p4info.txt files by @jafingerhut in #4687
• Add a release template to the compiler. by @fruffy in #4692
• Automated Release v1.2.4.12 by @github-actions in #4699

Full Changelog: v1.2.4.11...v1.2.4.12

What's Changed

• Handle Arithmetic operations for fields which are in network order by @komaljai in #4566
• Create CONTRIBUTING.md by @AdarshRawat1 in #4581
• Revert using Abseil system includes. by @fruffy in #4594
• [DOCS][Refactor] Replace direct links with word links by @AdarshRawat1 in #4577
• Fix spurious failure when two tests try to remove ptf.log at the same time. by @fruffy in #4591
• Improve & Move "How to contribute" section to Top level readme by @AdarshRawat1 in #4580
• allow disabling of p4 input count check by @grg in #4446
• [Docs] Add Table of Content by @AdarshRawat1 in #4590
• Do not swallow the output when checking for existence of the static binary in the PTF eBPF test. by @fruffy in #4601
• restore missing parentheses by @grg in #4600
• Make the tree cloner also clone Member(TypeNameExpression) to ensure the result is a DAG by @mihaibudiu in #4539
• Update the comment format of common by @sumit7754 in #4602
• Update the DASH programs. by @fruffy in #4593
• Update the Commenting Style in the BMv2 Backend. by @sumit7754 in #4603
• P4TC - kfunc definition changes by @komaljai in #4604
• Fix a warning emerging from a testsuite in GTest on newer versions of Clang. by @fruffy in #4605
• Add option to build with dynamic libc and c++, but static other dependencies; change static option name by @vlstill in #4597
• Add missing include to map.h by @smolkaj in #4607
• Inspector: clear the done flag when revisiting node by @grg in #4608
• [Docs] Improve formatting for consistency by @AdarshRawat1 in #4616
• Miscellaneous cleanups for P4Testgen. by @fruffy in #4613
• Fix missing override in the visitor test compilation unit. by @fruffy in #4621
• Force black to use the pytoml file as configuration. by @fruffy in #4588
• Update the Commenting Style in the DPDK backend by @sumit7754 in #4619
• P4TC - Add permission annotations to tables by @komaljai in #4610
• [Docs] Non-Breaking change of "p4c" to "P4C" by @AdarshRawat1 in #4620
• Use IR::Annotation::nameAnnotation everywhere instead of hard-coding @name annotation name by @kfcripps in #4628
• Ensure we take compiler-provided declaration of posix_memalign by @asl in #4609
• Call PassManager's debug hook even after a failing pass by @vlstill in #4626
• Update ebpf comment format by @sumit7754 in #4624
• [#4614] Unconditionally copy dpdk p4include files to the binary directory by @kfcripps in #4615
• [#4625] Prune MethodCallStatements if child MethodCallExpression resolves to a compile-time constant. by @kfcripps in #4627
• [Docs] capitalize "GCC" acronym in docs and comment by @AdarshRawat1 in #4632
• Update graphs comment formatting. by @sumit7754 in #4630
• P4TC - Emit 'NoAction' in table actions list in template file by @komaljai in #4622
• allow disabling of subtraction transform by @grg in #4633
• Contribute DiagnosticCountInPassHook by @vlstill in #4629
• Update MacOS brew version. by @fruffy in #4642
• Fix: Outdated links by @AdarshRawat1 in #4618
• Rename reused-counter.p4 as reused-counter-bmv2.p4 so a test is created for it by @jafingerhut in #4636
• Add -mbmi flag to Abseil for GCC versions greater than 14. by @fruffy in #4638
• Introduce guard for aarch64 GCC compilation. by @fruffy in #4647
• Automated Release v1.2.4.11 by @github-actions in #4646

Full Changelog: v1.2.4.10...v1.2.4.11

What's Changed

• [P4Testgen] Add a rudimentary P4Testgen benchmark with via GTest. by @fruffy in #4475
• warn on unused controls/parsers by @grg in #4440
• restore underscore after DISABLED in test name by @grg in #4497
• Fix comment typos in frontend.h by @kfcripps in #4498
• [P4Testgen] Make more functions of the P4Tools Z3 API accessible. by @fruffy in #4322
• Move CI Mac and Fedora tests to separate test runs. by @fruffy in #4495
• Replace boost string algorithms with their abseil counterparts by @asl in #4482
• Build P4Testgen on MacOS. by @fruffy in #4492
• Link Bazel badge in the Bazel README section to the actual CI test by @Sanket-0510 in #4505
• HalfOpenRange/ClosedRange classes by @grg in #4496
• Update formatters (clang-format, isort, black) by @fruffy in #4515
• Fix broken MacOS and Ubuntu18.04 runs. by @fruffy in #4517
• [docs] Add Backend to directory structure by @AdarshRawat1 in #4503
• [Docs] Added tools to directory structure by @AdarshRawat1 in #4504
• YAML formatting from Redhead YAML language server. by @fruffy in #4521
• Bump softprops/action-gh-release from 1 to 2 by @dependabot in #4518
• [docs] subdirectories and description for control plane by @Sanket-0510 in #4506
• gc: implement posix_memalign by @ChrisDodd in #4508
• help compiler folding for divideFloor/moduloFloor by @grg in #4512
• Add 4 digit uid to dump file names by @ChrisDodd in #4509
• Allow annotations on functions by @ChrisDodd in #4452
• tc struct fields addition and memory initialization by @Sosutha in #4524
• tc_may_override annotation implementation by @Sosutha in #4529
• Extend parser to allow parentheses in lvalues by @jnfoster in #4530
• Add ninja as a default build system for some runners. by @fruffy in #4491
• Preserve annotations on functions properly by @ChrisDodd in #4532
• [docs] Sync Directory structure of P4tools by @AdarshRawat1 in #4516
• Midend def-use pass by @grg in #4489
• Clean up P4Tools and control-plane linking. by @fruffy in #4520
• [P4Testgen] Fix append and prepend invocation. by @fruffy in #4306
• Remove obsolete output_to_genfiles = True. by @tjgq in #4541
• [documentation] Add hyperlinks to the actual directory in the README file. by @AdarshRawat1 in #4531
• Bump softprops/action-gh-release from 1 to 2 by @dependabot in #4545
• Use Abseil system includes by @fruffy in #4511
• Add policy controlling RemoveUnusedDeclarations by @ChrisDodd in #4528
• Fix a warning on missing override in def use class. by @fruffy-g in #4547
• Move the network hashes implementation from Bmv2 testgen to lib/ by @vlstill in #4526
• Allow constructing an IR::ID from a std::string by @ChrisDodd in #4549
• P4TC - Support add_on_miss, add entry externs by @komaljai in #4522
• Bump black from 24.2.0 to 24.3.0 by @dependabot in #4551
• Add 2 more CRC checksum variants to lib/nethash by @vlstill in #4550
• Refactor Util::Enumerator by @asl in #4513
• Corrected version in README.md by @sumit7754 in #4555
• Implict cast fix by @ChrisDodd in #4399
• Add width to parameters of entries in template file. by @komaljai in #4557
• Support new ActionProfile annotations for P4Runtime. by @jonathan-dilorenzo in #4533
• [P4Testgen] Clean up the direct extern map implementation for BMv2. by @fruffy-g in #4546
• Suppress Abseil warnings. by @fruffy in #4556
• [P4Testgen] Add a missing nullopt check. by @fruffy-g in #4560
• Add p4tc_filter_fields in add_entry by @komaljai in #4559
• Added default action code for tc backend by @Sosutha in #4561
• Fix missing Bazel dependency and move deprecation notice to right location by @fruffy-g in #4564
• Fix broken Debian CI test badge in the README. Add Fedora and MacOS CI badge. by @Abhinavcode13 in #4569
• Fix Resource links in Doxygen documentation. by @AdarshRawat1 in #4565
• Update rules_boost which pulled in the compromised xz dependency. by @fruffy in #4584
• [docs] Add Comment Style Guide by @AdarshRawat1 in #4573
• doc: backends: Add Doxygen-style documentation for BMV2 JSONObjects by @thrilseekr in #4554
• Automated Release v1.2.4.10 by @github-actions in #4587

New Contributors

• @Sanket-0510 made their first contribution in #4505
• @tjgq made their first contribution in #4541
• @Abhinavcode13 made their first contribution in #4569
• @thrilseekr made their first contribution in #4554

Full Changelog: v1.2.4.9...v1.2.4.10

What's Changed

• Allow one more round of type inference after specialization by @mihaibudiu in #4291
• Try to fix Github actions syntax. by @fruffy in #4394
• backends/tc: Honour P4TEST_REPLACE environment variable like other backends by @thomascalvert-xlnx in #4395
• backends/ebpf: Track header offset in bytes rather than bits. by @thomascalvert-xlnx in #4327
• [P4Testgen] Hotfixes and improvements to the P4Constraints parsers. by @fruffy in #4387
• Fixes from static analysis by @vlstill in #4391
• Rename eBPF section names for tc backend by @vbnogueira in #4361
• [#4365] Do not allow --Wdisable or --Wwarn to demote errors. Allow --Winfo=diagnostic to work for diagnostics that can be both warnings and errors. by @kfcripps in #4366
• Dpdk backend:Explicitly use method toString() while moving isValid() Methodcall used as table key, to metadata. by @usha1830 in #4383
• [P4Testgen] Fix failing P4Testgen gtest. by @fruffy in #4397
• [P4Testgen] Use P4Runtime in the protobuf test back end. by @fruffy in #4303
• Improve diagnostics for MethodCallExpression by @kfcripps in #4354
• [P4Testgen] Fix generation of specific fields in the Protobuf-IR test backend. by @fruffy-g in #4400
• Implement copy assignment operator for hvec_map by @asl in #4388
• [P4Testgen] Introduce a configuration structure for the test back ends. by @fruffy in #4372
• [P4Testgen] Add a silent mode to P4Tools. Add performance counting at the top level. by @fruffy in #4369
• [P4Testgen] Add an option to override the test name. by @fruffy in #4401
• Do not check for shadowing repeatedly in inlining passes. by @kfcripps in #4396
• [P4Testgen] Stop when an error is throwing in the P4Runtime serializer. Make stop-on-error explicit in the Midend class. by @fruffy in #4408
• Memoize & improve name lookup in ResolveReferences by @kfcripps in #4376
• Add buildifier to Bazel workspace and run it on the bazel build files. by @fruffy in #4413
• Implement lightweight RTTI for (not only) IR::Node class hierarchies by @asl in #4377
• [P4Testgen] Add a test case generation API to P4Testgen. by @fruffy in #4374
• Introduce a frontend policy as a customization point for frontend by @vlstill in #4406
• Emit a reasonable error if someone uses type in place where expression is exprected by @vlstill in #4411
• Add IR utility that helps with return of multiple statements from Transform by @vlstill in #4414
• test for ContantFolding + policy by @grg in #4421
• gtest include: quotes -> angled brackets by @grg in #4422
• frontend policy fix: missed ConstantFolding instance by @grg in #4423
• [P4Testgen] Look up the alias in the P4Info instead of using the fully-qualified control plane name for Protobuf IR tests. by @fruffy-g in #4425
• [P4Testgen] Add an option to only generate tests with dropped packets. by @fruffy in #4416
• Add a missing build rule to P4Testgen's bazel build. by @fruffy-g in #4429
• [P4Testgen] Basic support for @p4runtime_translation and @p4runtime_translation_mappings. by @fruffy-g in #4363
• Pass FrontEndPolicy to unit tests by @vlstill in #4433
• allow json output format to be modified by @grg in #4407
• Provide better hash functions and boilerplate by @asl in #4424
• Error casting bool const to other than bit<1> by @ChrisDodd in #4419
• Don't apply defaultArguments in table action lists by @ChrisDodd in #4434
• -lldb arg run run lldb on the compiler in tests by @ChrisDodd in #4435
• Fix Python linters and clean up run-bmv2-ptf-test.py, testutils, and ebpfenv by @fruffy in #4437
• [P4Testgen] Move seed logging to toplevel. by @fruffy in #4436
• add missing srcInfo to ParserState by @grg in #4438
• Avoid to-after-is double calls to RTTI in the type checker by @vlstill in #4441
• P4TC - CRC32 Initialisation by @komaljai in #4427
• Change minimum key struct alignment to 8 by @vbnogueira in #4426
• Fix comment by @kfcripps in #4449
• Create a dependabot.yml for Github actions by @fruffy in #4405
• Refactor some visitor internals by @asl in #4447
• Bump docker/login-action from 2 to 3 by @dependabot in #4453
• Bump peter-evans/create-pull-request from 5 to 6 by @dependabot in #4454
• Bump docker/setup-buildx-action from 2 to 3 by @dependabot in #4455
• Bump actions/cache from 2 to 4 by @dependabot in #4456
• Bump actions/checkout from 3 to 4 by @dependabot in #4457
• Refactor ReferenceResolver to use native C++-enumerators in some places by @asl in #4432
• Add merge group label to relevant CI runs. by @fruffy in #4462
• [P4Testgen] Add more API options to the P4Testgen api. by @fruffy-g in #4451
• [P4Testgen] Handle value suffixes in the asserts parser. by @fruffy-g in #4450
• Remove some unused boost headers and switch from boost code to alternatives by @asl in #4464
• Fix hvec_map insert/emplace by @ChrisDodd in #4458
• Bump actions/setup-python from 4 to 5 by @dependabot in #4466
• Bump docker/build-push-action from 3 to 5 by @dependabot in #4467
• Add support for parser errors in tc backend by @vbnogueira in #4443
• Add some more global operator new / delete overrides by @asl in #4465
• Try to speed up the CI build process by @fruffy in #4470
• Bump protobuf version and add Abseil as compiler dependency. by @asl in #4463
• Dowload pre-built Z3 on Macs as well by @asl in #4476
• [P4Testgen] Implement a library for common control-plane symbolic variables. by @fruffy in #4398
• Use better maps to store visitor state by @asl in #4459
• Try to clean up the Protobuf includes. by @fruffy in #4474
• Fix for pipeline id for tc backend by @Sosutha in #4480
• Fix for default_action in tc backend by @Sosutha in #4485
• backends/tc: Fix issues reported in #4327 by @thomascalvert-xlnx in #4484
• [P4Testgen] Add an option to selectively ignore control plane elements. by @fruffy in #4417
• Update MacOS runner to Ventura, add MacOS Sonoma (M1) runner by @fruffy in #4393
• Add missing Bazel targets. by @fruffy-g in #4486
• Fixes from static analysis by @vlstill in #4442
• Distinguish runner OS. by @fruffy-g in #4487
• Generalize get in map utils by @asl in #4483
• Fetch latest brew formulae by @asl in #4488
• Use abseil maps even more by @asl in #4473
• Move out of place comment in gc.cpp by @kfcripps in #4494
• Automated Release v1.2.4.9 by @github-actions in #4490

Full Changelog: v1.2.4.8...v1.2.4.9

What's Changed

• [P4Testgen] Implement coverage tracking of actions by @vlstill in #4307
• keep P4Control->body->srcInfo during init move by @grg in #4317
• Allow constructing PassRepeated from a PassManager by @vlstill in #4319
• Respect ENABLE_LTO even for static build, but keep LTO default for static by @vlstill in #4320
• Make sure P4 expression optimization does not strip away types by @vlstill in #4300
• Rename --with-output-packet to --output-packet-only. by @fruffy-g in #4314
• Allow constant-folding of arbitrary-precision integer casts by @vlstill in #4325
• Update status badges by @fruffy-g in #4330
• [P4Testgen] Extend the CompilerTarget runProgram function with data structures which can pass on more information. by @fruffy in #4323
• Fix build with system Protobuf by @jkhsjdhjs in #4321
• Ignore clang-tidy complaints about macro do-while loops. by @fruffy in #4332
• [P4Testgen] Refactor ProgramInfo to be initialized with CompilerResult instead of a IR::P4Program by @fruffy in #4324
• Convert deparser header to 'inout' and address casting for functions with control block parameters by @komaljai in #4338
• Allow unknown fields when parsing P4Info files by @jafingerhut in #4341
• cstring: Add string literal suffix, add toLower by @vlstill in #4342
• Documentation & testfix follow-up to #4160 by @thomascalvert-xlnx in #4328
• Repair the static DPDK PTF tests. by @fruffy in #4210
• DoConstantFolding: make typeMap param const by @grg in #4346
• Emit the Protobuf header with the P4 entries and runtime files. by @fruffy in #4350
• Trigger CI workflows based on assigned label. by @fruffy in #4348
• [P4Testgen] Introduce the option to produce lowercase hex for the formatting library. by @fruffy-g in #4340
• Deprecate .txt, support in favour of .txtpb. by @fruffy in #4352
• [P4Testgen] Introduce a compiler target for P4Testgen. Move computation from the ProgramInfo to the midend. by @fruffy in #4292
• Improve diagnostics for StructExpression by @kfcripps in #4357
• Improve diagnostics for BaseListExpression by @kfcripps in #4358
• Improve diagnostics for AssignmentStatement by @kfcripps in #4360
• Provide hints on how to fix CI complaints. by @fruffy in #4355
• Remove P4C options from gtest binary. by @fruffy in #4334
• Add missing equiv implementation to Type_Any. by @fruffy in #4336
• Fix the option to pipe stdin to the compiler. by @fruffy in #4367
• Fixes for MacOS/macports by @ChrisDodd in #4375
• P4TC - Support const entries by @komaljai in #4329
• Support ebpf Hash and Checksum by @komaljai in #4378
• Use std::allocator_traits::rebind_alloc instead of std::allocator::rebind by @vlstill in #4373
• Remove XDP code generated for TC by @vbnogueira in #4349
• Remove redundant protobuf installation in the CI build scripts. by @fruffy in #4379
• Remove unused parser declarations and unused parser type declarations that result from RemoveRedundantParsers pass. by @kfcripps in #4368
• Tweak optional CI run execution. by @fruffy in #4380
• [NFC] Eliminate the majority of dynamic_cast usage in the codebase in favor of ICastable interface by @asl in #4382
• Add a P4Info API to the control-plane folder and P4Tools. by @fruffy in #4381
• Automated Release v1.2.4.8 by @github-actions in #4386

Full Changelog: v1.2.4.7...v1.2.4.8

What's Changed

• [P4Testgen] Resolve method call arguments before stepping into an extern - preserve InOut references by @fruffy in #4255
• [P4Testgen] Move static helpers from TestgenTarget and ProgramInfo to common/lib/utils by @vlstill in #4268
• Fix problem with bpftool in PTF tests by @tatry in #4277
• [P4Testgen] Fix accidental system file categorization. by @fruffy in #4278
• Remove deprecated inheritance from std:binary_function by @fruffy in #4283
• [P4Testgen] Move P4Testgen's logging function into the common library. by @fruffy in #4279
• Try to fix some issues with slowness in the MacOS build. by @fruffy in #4280
• P4TC - Support for set_entry_timer extern by @komaljai in #4269
• Do not toggle BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP in CMakelists.txt by @fruffy in #4181
• Add validation of constant enum values fitting by @vlstill in #4287
• [P4Testgen] Fix behavior of coverage on edge cases with no nodes to cover by @vlstill in #4275
• Fix initialization order in gtest helper by @vlstill in #4296
• Remove uses of incompatible_use_toolchain_transition. by @katre in #4299
• [P4Testgen] Fix stringliteral conversion. Value must be a literal, NOT a constant by @fruffy in #4298
• Dpdk Backend: Fix incorrect field extraction arithmetic by @usha1830 in #4301
• Remove -static and rename static build appropriately. by @fruffy in #4284
• [P4Testgen] Add support for @Format annotations in P4 programs for protobuf-ir tests by @fruffy-g in #4276
• Support default action in P4TC by @komaljai in #4308
• [P4Testgen] Move arch spec to ProgramInfo to allow it to depend on P4 program by @vlstill in #4267
• Fix type field in introspection.json by @komaljai in #4313
• Fix some problems with the Protobuf CMake file by @fruffy in #4262
• Automated Release v1.2.4.7 by @github-actions in #4312

Full Changelog: v1.2.4.6...v1.2.4.7