llvm-project.git/llvm/docs/TableGen/BackGuide.rst, branch users/nico/python-2 Unnamed repository; edit this file 'description' to name the repository. [TableGen] Only store direct superclasses in Record (#123072) 2025-04-24T17:57:51+00:00 Jay Foad jay.foad@amd.com 2025-04-24T17:57:51+00:00 2bc6f9d4b6ff1d838f1c2d50cacbab6ba2f20bc9 In Record only store the direct superclasses instead of all superclasses. getSuperClasses recurses to find all superclasses when necessary. This gives a small reduction in memory usage. On lib/Target/X86/X86.td I measured about 2.0% reduction in total bytes allocated (measured by valgrind) and 1.3% reduction in peak memory usage (measured by /usr/bin/time -v). --------- Co-authored-by: Min-Yih Hsu <min@myhsu.dev> 
In Record only store the direct superclasses instead of all
superclasses. getSuperClasses recurses to find all superclasses when
necessary.

This gives a small reduction in memory usage. On lib/Target/X86/X86.td I
measured about 2.0% reduction in total bytes allocated (measured by
valgrind) and 1.3% reduction in peak memory usage (measured by
/usr/bin/time -v).

---------

Co-authored-by: Min-Yih Hsu <min@myhsu.dev>
 [NFC][TableGen] Change `Record::getSuperClasses` to use const Record* (#110845) 2024-10-02T20:24:46+00:00 Rahul Joshi rjoshi@nvidia.com 2024-10-02T20:24:46+00:00 65e69f7436c08bb6a32a9d9784b2158b63af1955 Change `Record::getSuperClasses` to return a const pointer to the superclass records. This is a part of effort to have better const correctness in TableGen backends: https://discourse.llvm.org/t/psa-planned-changes-to-tablegen-getallderiveddefinitions-api-potential-downstream-breakages/81089 
Change `Record::getSuperClasses` to return a const pointer to the
superclass records.

This is a part of effort to have better const correctness in TableGen
backends:


https://discourse.llvm.org/t/psa-planned-changes-to-tablegen-getallderiveddefinitions-api-potential-downstream-breakages/81089
 [RFC][AMDGPU] Remove old llvm.amdgcn.buffer.* and tbuffer intrinsics (#93801) 2024-06-10T11:14:51+00:00 Jay Foad jay.foad@amd.com 2024-06-10T11:14:51+00:00 18ec885a26049264a56714f234c086eec2df68db They have been superseded by llvm.amdgcn.raw.buffer.* and llvm.amdgcn.struct.buffer.*. 
They have been superseded by llvm.amdgcn.raw.buffer.* and
llvm.amdgcn.struct.buffer.*.
 TableGen: Introduce `llvm::TableGen::Emitter` to register backends 2023-03-21T07:21:27+00:00 NAKAMURA Takumi geek4civic@gmail.com 2023-02-16T23:24:07+00:00 4178ef43b2f12171639e3ef2bf02e5b7efd34688 `Opt(flag, func, desc)` registers an option into `Action`. `OptClass<EmitterC>` is also available if `EmitterC(RK).run(OS)` is capable. `Action` is defined as `ManagedStatic<cl::opt>` to guarantee to be created when each registration of emitter is invoked. `llvm::TableGenMain(argv0, MainFn)` invokes `Action` instead of `MainFn` Differential Revision: https://reviews.llvm.org/D144351 
`Opt(flag, func, desc)` registers an option into `Action`.

`OptClass<EmitterC>` is also available if `EmitterC(RK).run(OS)` is capable.

`Action` is defined as `ManagedStatic<cl::opt>` to guarantee to be created
when each registration of emitter is invoked.

`llvm::TableGenMain(argv0, MainFn)` invokes `Action` instead of `MainFn`

Differential Revision: https://reviews.llvm.org/D144351
[NFC] Trim trailing whitespace in *.rst 2021-11-15T01:17:08+00:00 Shao-Ce SUN shaoce@nj.iscas.ac.cn 2021-11-15T01:17:08+00:00 0c660256eb41fb0ba44277a32f39d2a028f797f2 






Ensure newlines at the end of files (NFC)
2021-10-23T15:45:29+00:00

Kazu Hirata
kazu@google.com

2021-10-23T15:45:29+00:00

d8e4170b0a1431edee939efc16b60b409affcb4d












[TableGen] Eliminate the 'code' type
2020-12-03T15:19:11+00:00

Paul C. Anagnostopoulos
paul@windfall.com

2020-11-24T18:09:02+00:00

415fab6f67b4db59abe533130272d55b4efbf0cb

Update the documentation.

Rework various backends that relied on the code type.

Differential Revision: https://reviews.llvm.org/D92269





Update the documentation.

Rework various backends that relied on the code type.

Differential Revision: https://reviews.llvm.org/D92269







[TableGen] Eliminte source location from CodeInit
2020-11-23T16:30:13+00:00

Paul C. Anagnostopoulos
paul@windfall.com

2020-11-22T14:56:42+00:00

b23e84ffcff8957e095599a6b7fd3f24ecf1f18c

Step 1 in eliminating the 'code' type.

Differential Revision: https://reviews.llvm.org/D91932





Step 1 in eliminating the 'code' type.

Differential Revision: https://reviews.llvm.org/D91932







[TableGen] Add frontend/backend phase timing capability.
2020-11-14T15:10:29+00:00

Paul C. Anagnostopoulos
paul@windfall.com

2020-10-22T06:58:49+00:00

54f9ee334114e9b494fc80978357d58295a48bd1

Describe in the BackEnd Developer's Guide. Instrument a few backends.

Remove an old unused timing facility. Add a null backend for timing
the parser.

Differential Revision: https://reviews.llvm.org/D91388





Describe in the BackEnd Developer's Guide. Instrument a few backends.

Remove an old unused timing facility. Add a null backend for timing
the parser.

Differential Revision: https://reviews.llvm.org/D91388







[TableGen] Clean up documentation toctrees; clarify two paragraphs.
2020-11-05T21:19:18+00:00

Paul C. Anagnostopoulos
paul@windfall.com

2020-11-04T23:48:53+00:00

6f288b11dba7f7ef01bdc4a3202e908bdc0fb067

Differential Revision: https://reviews.llvm.org/D90804





Differential Revision: https://reviews.llvm.org/D90804