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release/21.x: opencl: Ensure printf symbol is not mangled. (#150210) #150960

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merged 1 commit into from
Jul 29, 2025
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release/21.x: opencl: Ensure printf symbol is not mangled. (#150210) #150960

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11 changes: 10 additions & 1 deletion clang/lib/Headers/opencl-c-base.h
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Original file line number Diff line number Diff line change
Expand Up @@ -697,7 +697,16 @@ template <typename _Tp> struct __remove_address_space<__constant _Tp> {
#if defined(__OPENCL_CPP_VERSION__) || (__OPENCL_C_VERSION__ >= CL_VERSION_1_2)
// OpenCL v1.2 s6.12.13, v2.0 s6.13.13 - printf

int printf(__constant const char* st, ...) __attribute__((format(printf, 1, 2)));
#ifdef __OPENCL_CPP_VERSION__
#define CLINKAGE extern "C"
#else
#define CLINKAGE
#endif

CLINKAGE int printf(__constant const char *st, ...)
__attribute__((format(printf, 1, 2)));

#undef CLINKAGE
#endif

#ifdef cl_intel_device_side_avc_motion_estimation
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