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Revert "implement views::concat (P2542) " #1

Revert "implement views::concat (P2542) "

Revert "implement views::concat (P2542) " #1

# This workflow is for pre-commit testing of the LLVM-libc project.
name: LLVM-libc Pre-commit Fullbuild Tests
permissions:
contents: read
on:
pull_request:
branches: [ "main" ]
paths:
- 'libc/**'
- '.github/workflows/libc-fullbuild-tests.yml'
jobs:
build:
runs-on: ubuntu-24.04
strategy:
fail-fast: false
matrix:
include:
- c_compiler: clang
cpp_compiler: clang++
# TODO: add back gcc build when it is fixed
# - c_compiler: gcc
# cpp_compiler: g++
steps:
- uses: actions/checkout@v4
# Libc's build is relatively small comparing with other components of LLVM.
# A fresh fullbuild takes about 190MiB of uncompressed disk space, which can
# be compressed into ~40MiB. Limiting the cache size to 1G should be enough.
# Prefer sccache as it is more modern.
# Do not use direct GHAC access even though it is supported by sccache. GHAC rejects
# frequent small object writes.
- name: Setup ccache
uses: hendrikmuhs/ccache-action@v1.2
with:
max-size: 1G
key: libc_fullbuild_${{ matrix.c_compiler }}
variant: sccache
# Notice:
# - MPFR is required by some of the mathlib tests.
# - Debian has a multilib setup, so we need to symlink the asm directory.
# For more information, see https://wiki.debian.org/Multiarch/LibraryPathOverview
- name: Prepare dependencies (Ubuntu)
run: |
sudo apt-get update
sudo apt-get install -y libmpfr-dev libgmp-dev libmpc-dev ninja-build linux-libc-dev
sudo ln -sf /usr/include/$(uname -p)-linux-gnu/asm /usr/include/asm
- name: Set reusable strings
id: strings
shell: bash
run: |
echo "build-output-dir=${{ github.workspace }}/build" >> "$GITHUB_OUTPUT"
echo "build-install-dir=${{ github.workspace }}/install" >> "$GITHUB_OUTPUT"
# Configure libc fullbuild with scudo.
# Use MinSizeRel to reduce the size of the build.
- name: Configure CMake
run: >
cmake -B ${{ steps.strings.outputs.build-output-dir }}
-DCMAKE_CXX_COMPILER=${{ matrix.cpp_compiler }}
-DCMAKE_C_COMPILER=${{ matrix.c_compiler }}
-DCMAKE_BUILD_TYPE=MinSizeRel
-DCMAKE_C_COMPILER_LAUNCHER=sccache
-DCMAKE_CXX_COMPILER_LAUNCHER=sccache
-DCMAKE_INSTALL_PREFIX=${{ steps.strings.outputs.build-install-dir }}
-DLLVM_ENABLE_RUNTIMES="libc;compiler-rt"
-DLLVM_LIBC_FULL_BUILD=ON
-DLLVM_LIBC_INCLUDE_SCUDO=ON
-DCOMPILER_RT_BUILD_SCUDO_STANDALONE_WITH_LLVM_LIBC=ON
-DCOMPILER_RT_BUILD_GWP_ASAN=OFF
-DCOMPILER_RT_SCUDO_STANDALONE_BUILD_SHARED=OFF
-G Ninja
-S ${{ github.workspace }}/runtimes
- name: Build
run: >
cmake
--build ${{ steps.strings.outputs.build-output-dir }}
--parallel
--target install
- name: Test
run: >
cmake
--build ${{ steps.strings.outputs.build-output-dir }}
--parallel
--target check-libc