[cfe-dev] OpenCL: get_global_linear_id() not supported?

[Frank Winter via cfe-dev]

The follwing kernel doesn't compile with Clang (current upstream):

__kernel void test()
{
  int i = get_global_linear_id();
}

clang  -emit-llvm -target amdgcn-amd-amdhsa -mcpu=gfx908 -Xclang -finclude-default-header -c test.cl -o test_amd.bc

test.cl:3:11: error: implicit declaration of function 'get_global_linear_id' is invalid in OpenCL
  int i = get_global_linear_id();
          ^
1 error generated.

Per Khronos OpenCL 2.0 specification this function is part of the standard.

What am I missing here?

Frank
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