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release/19.x: [builtins] Fix missing main() function in float16/bfloat16 support checks (#104478) #106843

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Merged
merged 1 commit into from
Sep 1, 2024
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release/19.x: [builtins] Fix missing main() function in float16/bfloat16 support checks (#104478) #106843

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6 changes: 4 additions & 2 deletions compiler-rt/lib/builtins/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -867,10 +867,12 @@ else ()
endif()
endif()
endif()
check_c_source_compiles("_Float16 foo(_Float16 x) { return x; }"
check_c_source_compiles("_Float16 foo(_Float16 x) { return x; }
int main(void) { return 0; }"
COMPILER_RT_HAS_${arch}_FLOAT16)
append_list_if(COMPILER_RT_HAS_${arch}_FLOAT16 -DCOMPILER_RT_HAS_FLOAT16 BUILTIN_CFLAGS_${arch})
check_c_source_compiles("__bf16 foo(__bf16 x) { return x; }"
check_c_source_compiles("__bf16 foo(__bf16 x) { return x; }
int main(void) { return 0; }"
COMPILER_RT_HAS_${arch}_BFLOAT16)
# Build BF16 files only when "__bf16" is available.
if(COMPILER_RT_HAS_${arch}_BFLOAT16)
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