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[CMake] Suppress -Wpass-failed warning #160472

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Merged
merged 2 commits into from
Oct 8, 2025
+7 −0
Merged

[CMake] Suppress -Wpass-failed warning #160472

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1e2a487
[MLIR][CMake] Suppress -Wpass-failed warning
nikic Sep 24, 2025
f203d44
Move to llvm, add FIXME to possibly remove it again
nikic Sep 29, 2025
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7 changes: 7 additions & 0 deletions llvm/cmake/modules/HandleLLVMOptions.cmake
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Expand Up @@ -962,6 +962,13 @@ if (LLVM_ENABLE_WARNINGS AND (LLVM_COMPILER_IS_GCC_COMPATIBLE OR CLANG_CL))

# Enable -Wctad-maybe-unsupported to catch unintended use of CTAD.
add_flag_if_supported("-Wctad-maybe-unsupported" CTAD_MAYBE_UNSPPORTED_FLAG)

# Disable -Wno-pass-failed flag, which reports failure to perform
# optimizations suggested by pragmas. This warning is not relevant for LLVM
# projects and may be injected by pragmas in libstdc++.
# FIXME: Reconsider this choice if warnings from STL headers can be reliably
# avoided (https://github.com/llvm/llvm-project/issues/157666).
add_flag_if_supported("-Wno-pass-failed" NO_PASS_FAILED_FLAG)
endif (LLVM_ENABLE_WARNINGS AND (LLVM_COMPILER_IS_GCC_COMPATIBLE OR CLANG_CL))

if (LLVM_COMPILER_IS_GCC_COMPATIBLE AND NOT LLVM_ENABLE_WARNINGS)
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