[all-commits] [llvm/llvm-project] 718729: [libc] Add memmem implementation

[Caslyn Tonelli via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 718729e9971d4ad12d8c7cb088c661202564cf34
      https://github.com/llvm/llvm-project/commit/718729e9971d4ad12d8c7cb088c661202564cf34
  Author: Caslyn Tonelli <caslyn at google.com>
  Date:   2023-04-11 (Tue, 11 Apr 2023)

  Changed paths:
    M libc/config/baremetal/arm/entrypoints.txt
    M libc/config/darwin/arm/entrypoints.txt
    M libc/config/darwin/x86_64/entrypoints.txt
    M libc/config/gpu/entrypoints.txt
    M libc/config/linux/aarch64/entrypoints.txt
    M libc/config/linux/arm/entrypoints.txt
    M libc/config/linux/riscv64/entrypoints.txt
    M libc/config/linux/x86_64/entrypoints.txt
    M libc/config/windows/entrypoints.txt
    M libc/spec/gnu_ext.td
    M libc/src/string/CMakeLists.txt
    A libc/src/string/memmem.cpp
    A libc/src/string/memmem.h
    M libc/src/string/memory_utils/CMakeLists.txt
    A libc/src/string/memory_utils/memmem_implementations.h
    M libc/src/string/memory_utils/strstr_implementations.h
    M libc/test/src/string/CMakeLists.txt
    A libc/test/src/string/memmem_test.cpp
    M utils/bazel/llvm-project-overlay/libc/BUILD.bazel

  Log Message:
  -----------
  [libc] Add memmem implementation

Introduce the `memmem` libc string function.

`memmem_implementation` performs shared logic for `strstr`,
`strcasestr`, and `memmem`; essentially reconfiguring what was the
`strstr_implementation` to support length parameters.

Differential Revision: https://reviews.llvm.org/D147822