src/compiler/spirv/spirv_info_c.py

   1 COPYRIGHT = """\
   2 /*
   3  * Copyright (C) 2017 Intel Corporation
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  */
  24 """
  25
  26 import argparse
  27 import json
  28 from sys import stdout
  29 from mako.template import Template
  30
  31 def collect_data(spirv, kind):
  32     for x in spirv["operand_kinds"]:
  33         if x["kind"] == kind:
  34             operands = x
  35             break
  36
  37     # There are some duplicate values in some of the tables (thanks guys!), so
  38     # filter them out.
  39     seen = set()
  40     values = []
  41     for x in operands["enumerants"]:
  42         if x["value"] not in seen:
  43             seen.add(x["value"])
  44             values.append(x["enumerant"])
  45
  46     return (kind, values)
  47
  48 def collect_opcodes(spirv):
  49     seen = set()
  50     values = []
  51     for x in spirv["instructions"]:
  52         # Handle aliases by choosing the first one in the grammar.
  53         # E.g. OpDecorateString and OpDecorateStringGOOGLE share same opcode.
  54         if x["opcode"] in seen:
  55             continue
  56         opcode = x["opcode"]
  57         name = x["opname"]
  58         assert name.startswith("Op")
  59         values.append(name[2:])
  60         seen.add(opcode)
  61
  62     return ("Op", values)
  63
  64 def parse_args():
  65     p = argparse.ArgumentParser()
  66     p.add_argument("json")
  67     p.add_argument("out")
  68     return p.parse_args()
  69
  70 TEMPLATE  = Template("""\
  71 /* DO NOT EDIT - This file is generated automatically by spirv_info_c.py script */
  72
  73 """ + COPYRIGHT + """\
  74 #include "spirv_info.h"
  75 % for kind,values in info:
  76
  77 const char *
  78 spirv_${kind.lower()}_to_string(Spv${kind} v)
  79 {
  80    switch (v) {
  81     % for name in values:
  82    case Spv${kind}${name}: return "Spv${kind}${name}";
  83     % endfor
  84    case Spv${kind}Max: break; /* silence warnings about unhandled enums. */
  85    }
  86
  87    return "unknown";
  88 }
  89 % endfor
  90 """)
  91
  92 if __name__ == "__main__":
  93     pargs = parse_args()
  94
  95     spirv_info = json.JSONDecoder().decode(open(pargs.json, "r").read())
  96
  97     info = [
  98         collect_data(spirv_info, "AddressingModel"),
  99         collect_data(spirv_info, "BuiltIn"),
 100         collect_data(spirv_info, "Capability"),
 101         collect_data(spirv_info, "Decoration"),
 102         collect_data(spirv_info, "Dim"),
 103         collect_data(spirv_info, "ExecutionMode"),
 104         collect_data(spirv_info, "ExecutionModel"),
 105         collect_data(spirv_info, "ImageFormat"),
 106         collect_data(spirv_info, "StorageClass"),
 107         collect_opcodes(spirv_info),
 108     ]
 109
 110     with open(pargs.out, 'w') as f:
 111         f.write(TEMPLATE.render(info=info))