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Index: llvm-toolchain-snapshot_21~++20250715030935+8226fbee4b62/compiler-rt/lib/builtins/CMakeLists.txt
===================================================================
--- llvm-toolchain-snapshot_21~++20250715030935+8226fbee4b62.orig/compiler-rt/lib/builtins/CMakeLists.txt
+++ llvm-toolchain-snapshot_21~++20250715030935+8226fbee4b62/compiler-rt/lib/builtins/CMakeLists.txt
@@ -1039,6 +1039,12 @@ if (COMPILER_RT_BUILD_CRT)
append_list_if(COMPILER_RT_ENABLE_CET -fcf-protection=full CRT_CFLAGS)
endif()
+ if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "x86_64")
+ append_list_if(COMPILER_RT_HAS_FLOAT16 -msse2 -DCOMPILER_RT_HAS_FLOAT16 BUILTIN_CFLAGS)
+ else ()
+ append_list_if(COMPILER_RT_HAS_FLOAT16 -DCOMPILER_RT_HAS_FLOAT16 BUILTIN_CFLAGS)
+ endif()
+
foreach(arch ${BUILTIN_SUPPORTED_ARCH})
add_compiler_rt_runtime(clang_rt.crtbegin
OBJECT
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