This file is indexed.

/usr/include/clang/Basic/BuiltinsPTX.def is in libclang-dev 3.0-6ubuntu3.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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//===--- BuiltinsPTX.def - PTX Builtin function database ----*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the PTX-specific builtin function database.  Users of
// this file must define the BUILTIN macro to make use of this information.
//
//===----------------------------------------------------------------------===//

// The format of this database matches clang/Basic/Builtins.def.

BUILTIN(__builtin_ptx_read_tid_x, "i", "nc")
BUILTIN(__builtin_ptx_read_tid_y, "i", "nc")
BUILTIN(__builtin_ptx_read_tid_z, "i", "nc")
BUILTIN(__builtin_ptx_read_tid_w, "i", "nc")

BUILTIN(__builtin_ptx_read_ntid_x, "i", "nc")
BUILTIN(__builtin_ptx_read_ntid_y, "i", "nc")
BUILTIN(__builtin_ptx_read_ntid_z, "i", "nc")
BUILTIN(__builtin_ptx_read_ntid_w, "i", "nc")

BUILTIN(__builtin_ptx_read_ctaid_x, "i", "nc")
BUILTIN(__builtin_ptx_read_ctaid_y, "i", "nc")
BUILTIN(__builtin_ptx_read_ctaid_z, "i", "nc")
BUILTIN(__builtin_ptx_read_ctaid_w, "i", "nc")

BUILTIN(__builtin_ptx_read_nctaid_x, "i", "nc")
BUILTIN(__builtin_ptx_read_nctaid_y, "i", "nc")
BUILTIN(__builtin_ptx_read_nctaid_z, "i", "nc")
BUILTIN(__builtin_ptx_read_nctaid_w, "i", "nc")

BUILTIN(__builtin_ptx_read_laneid, "i", "nc")
BUILTIN(__builtin_ptx_read_warpid, "i", "nc")
BUILTIN(__builtin_ptx_read_nwarpid, "i", "nc")

BUILTIN(__builtin_ptx_read_smid, "i", "nc")
BUILTIN(__builtin_ptx_read_nsmid, "i", "nc")
BUILTIN(__builtin_ptx_read_gridid, "i", "nc")

BUILTIN(__builtin_ptx_read_lanemask_eq, "i", "nc")
BUILTIN(__builtin_ptx_read_lanemask_le, "i", "nc")
BUILTIN(__builtin_ptx_read_lanemask_lt, "i", "nc")
BUILTIN(__builtin_ptx_read_lanemask_ge, "i", "nc")
BUILTIN(__builtin_ptx_read_lanemask_gt, "i", "nc")

BUILTIN(__builtin_ptx_read_clock, "i", "n")
BUILTIN(__builtin_ptx_read_clock64, "Li", "n")

BUILTIN(__builtin_ptx_read_pm0, "i", "n")
BUILTIN(__builtin_ptx_read_pm1, "i", "n")
BUILTIN(__builtin_ptx_read_pm2, "i", "n")
BUILTIN(__builtin_ptx_read_pm3, "i", "n")

BUILTIN(__builtin_ptx_bar_sync, "vi", "n")


#undef BUILTIN