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[Offload] Deprecate openmp and offload projects builds #136314

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Merged
merged 2 commits into from
Apr 25, 2025
Merged

[Offload] Deprecate openmp and offload projects builds #136314

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4d85194
[Offload] Deprecate `openmp` and `offload` projects
jhuber6 Apr 18, 2025
56aa2eb
Merge branch 'main' into Deprecate
jhuber6 Apr 19, 2025
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14 changes: 14 additions & 0 deletions llvm/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -164,6 +164,20 @@ if ("compiler-rt" IN_LIST LLVM_ENABLE_PROJECTS)
"https://compiler-rt.llvm.org/ for building the runtimes.")
endif()

if ("offload" IN_LIST LLVM_ENABLE_PROJECTS)
message(WARNING "Using LLVM_ENABLE_PROJECTS=offload is deprecated now, and will "
"become a fatal error in the LLVM 21 release. Please use "
"-DLLVM_ENABLE_RUNTIMES=offload or see the instructions at "
"https://openmp.llvm.org/ for building the runtimes.")
endif()

if ("openmp" IN_LIST LLVM_ENABLE_PROJECTS)
message(WARNING "Using LLVM_ENABLE_PROJECTS=openmp is deprecated now, and will "
"become a fatal error in the LLVM 21 release. Please use "
"-DLLVM_ENABLE_RUNTIMES=openmp or see the instructions at "
"https://openmp.llvm.org/ for building the runtimes.")
endif()

if ("flang-rt" IN_LIST LLVM_ENABLE_RUNTIMES)
if (NOT "flang" IN_LIST LLVM_ENABLE_PROJECTS)
message(FATAL_ERROR "Flang is not enabled, but is required for the Flang-RT runtime")
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