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authorMark de Wever <koraq@xs4all.nl>2023-05-24 18:12:32 +0200
committerMark de Wever <koraq@xs4all.nl>2023-05-27 12:51:21 +0200
commitcbaa3597aaf6273e66b3f445ed36a6458143fe6a (patch)
tree0960cf77e2b0feda19ba83a49615547135041a6d /polly
parenta218c991811c2bc29539b6946920342f956fe758 (diff)
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Reland "[CMake] Bumps minimum version to 3.20.0.
This reverts commit d763c6e5e2d0a6b34097aa7dabca31e9aff9b0b6. Adds the patch by @hans from https://github.com/llvm/llvm-project/issues/62719 This patch fixes the Windows build. d763c6e5e2d0a6b34097aa7dabca31e9aff9b0b6 reverted the reviews D144509 [CMake] Bumps minimum version to 3.20.0. This partly undoes D137724. This change has been discussed on discourse https://discourse.llvm.org/t/rfc-upgrading-llvms-minimum-required-cmake-version/66193 Note this does not remove work-arounds for older CMake versions, that will be done in followup patches. D150532 [OpenMP] Compile assembly files as ASM, not C Since CMake 3.20, CMake explicitly passes "-x c" (or equivalent) when compiling a file which has been set as having the language C. This behaviour change only takes place if "cmake_minimum_required" is set to 3.20 or newer, or if the policy CMP0119 is set to new. Attempting to compile assembly files with "-x c" fails, however this is workarounded in many cases, as OpenMP overrides this with "-x assembler-with-cpp", however this is only added for non-Windows targets. Thus, after increasing cmake_minimum_required to 3.20, this breaks compiling the GNU assembly for Windows targets; the GNU assembly is used for ARM and AArch64 Windows targets when building with Clang. This patch unbreaks that. D150688 [cmake] Set CMP0091 to fix Windows builds after the cmake_minimum_required bump The build uses other mechanism to select the runtime. Fixes #62719 Reviewed By: #libc, Mordante Differential Revision: https://reviews.llvm.org/D151344
Diffstat (limited to 'polly')
-rw-r--r--polly/CMakeLists.txt9
1 files changed, 1 insertions, 8 deletions
diff --git a/polly/CMakeLists.txt b/polly/CMakeLists.txt
index 536f11f..5d0f2cd 100644
--- a/polly/CMakeLists.txt
+++ b/polly/CMakeLists.txt
@@ -1,14 +1,7 @@
# Check if this is a in tree build.
if (NOT DEFINED LLVM_MAIN_SRC_DIR)
project(Polly)
- cmake_minimum_required(VERSION 3.13.4)
- if ("${CMAKE_VERSION}" VERSION_LESS "3.20.0")
- message(WARNING
- "Your CMake version is ${CMAKE_VERSION}. Starting with LLVM 17.0.0, the "
- "minimum version of CMake required to build LLVM will become 3.20.0, and "
- "using an older CMake will become an error. Please upgrade your CMake to "
- "at least 3.20.0 now to avoid issues in the future!")
- endif()
+ cmake_minimum_required(VERSION 3.20.0)
set(POLLY_STANDALONE_BUILD TRUE)
endif()