ggml-webgpu: port all AOT operators to JIT (#20728)

* port cpy pipeline to shader lib with JIT compilation * port glu pipeline to shader lib with JIT compilation * port rope pipeline to shader lib with JIT compilation * port soft_max pipeline to shader lib with JIT compilation * removed unused functions from embed_wgsl.py which were used for old AOT template expansion
2026-03-31 15:38:16 -07:00
parent 0fcb3760b2
commit 825eb91a66
8 changed files with 764 additions and 1001 deletions
@@ -1,41 +1,8 @@
 import os
 import re
-import ast
 import argparse


-def extract_block(text, name):
-    pattern = rf'#define\({name}\)\s*(.*?)#end\({name}\)'
-    match = re.search(pattern, text, re.DOTALL)
-    if not match:
-        raise ValueError(f"Missing block: {name}")
-    return match.group(1).strip()
-
-
-def parse_decls(decls_text):
-    decls = {}
-    for name, code in re.findall(r'#decl\((.*?)\)\s*(.*?)#enddecl\(\1\)', decls_text, re.DOTALL):
-        decls[name.strip()] = code.strip()
-    return decls
-
-
-def replace_repl_placeholders(variant, template_map):
-    for repl, code in variant["REPLS"].items():
-        for key, val in template_map.items():
-            # Match "key" and avoid matching subsequences using by using \b
-            code = re.sub(rf'\b{re.escape(str(key))}\b', str(val), code)
-        variant["REPLS"][repl] = code
-    return variant
-
-
-def replace_placeholders(shader_text, replacements):
-    for key, val in replacements.items():
-        # Match {{KEY}} literally, where KEY is escaped
-        pattern = r'{{\s*' + re.escape(key) + r'\s*}}'
-        shader_text = re.sub(pattern, str(val), shader_text)
-    return shader_text
-
-
 def expand_includes(shader, input_dir):
    """
    Replace #include "file" lines in the text with the contents of that file.
@@ -98,84 +65,24 @@ def write_shader(shader_name, shader_code, output_dir, outfile, input_dir):
        outfile.write(f'const char* wgsl_{shader_name} = wgsl_{shader_name}_str().c_str();\n\n')


-def generate_variants(fname, input_dir, output_dir, outfile):
-    shader_path = os.path.join(input_dir, fname)
-    shader_base_name = fname.split(".")[0]
-
-    with open(shader_path, "r", encoding="utf-8") as f:
-        text = f.read()
-
-    try:
-        variants = ast.literal_eval(extract_block(text, "VARIANTS"))
-    except ValueError:
-        write_shader(shader_base_name, text, output_dir, outfile, input_dir)
-    else:
-        try:
-            decls_map = parse_decls(extract_block(text, "DECLS"))
-        except ValueError:
-            decls_map = {}
-        try:
-            templates_map = ast.literal_eval(extract_block(text, "REPL_TEMPLATES"))
-        except ValueError:
-            templates_map = {}
-
-        for fname in sorted(os.listdir(input_dir)):
-            if fname.endswith(".tmpl"):
-                tmpl_path = os.path.join(input_dir, fname)
-                with open(tmpl_path, "r", encoding="utf-8") as f_tmpl:
-                    decls = f_tmpl.read()
-                    decls_map.update(parse_decls(decls))
-
-        shader_template = extract_block(text, "SHADER")
-        for variant in variants:
-            if "DECLS" in variant:
-                decls = variant["DECLS"]
-            else:
-                decls = []
-            decls_code = ""
-            for key in decls:
-                if key not in decls_map:
-                    raise ValueError(f"DECLS key '{key}' not found.")
-                decls_code += decls_map[key] + "\n\n"
-            final_shader = re.sub(r'\bDECLS\b', decls_code, shader_template)
-            if "REPLS" in variant:
-                variant = replace_repl_placeholders(variant, templates_map)
-                final_shader = replace_placeholders(final_shader, variant["REPLS"])
-                # second run to expand placeholders in repl_template
-                final_shader = replace_placeholders(final_shader, variant["REPLS"])
-            final_shader = expand_includes(final_shader, input_dir)
-
-            if "SHADER_NAME" in variant:
-                output_name = variant["SHADER_NAME"]
-            elif "SHADER_SUFFIX" in variant:
-                output_name = f"{shader_base_name}_" + variant["SHADER_SUFFIX"]
-            elif "REPLS" in variant and "SRC0_TYPE" in variant["REPLS"] and "SRC1_TYPE" in variant["REPLS"]:
-                output_name = f"{shader_base_name}_" + "_".join([variant["REPLS"]["SRC0_TYPE"], variant["REPLS"]["SRC1_TYPE"]])
-            elif "REPLS" in variant and "SRC_TYPE" in variant["REPLS"] and "DST_TYPE" in variant["REPLS"]:
-                output_name = f"{shader_base_name}_" + "_".join([variant["REPLS"]["SRC_TYPE"], variant["REPLS"]["DST_TYPE"]])
-            elif "REPLS" in variant and "TYPE" in variant["REPLS"]:
-                output_name = f"{shader_base_name}_" + variant["REPLS"]["TYPE"]
-            else:
-                output_name = shader_base_name
-            write_shader(output_name, final_shader, output_dir, outfile, input_dir)
-
-
 def main():
    parser = argparse.ArgumentParser()
    parser.add_argument("--input_dir", required=True)
    parser.add_argument("--output_file", required=True)
-    parser.add_argument("--output_dir")
    args = parser.parse_args()

-    if args.output_dir:
-        os.makedirs(args.output_dir, exist_ok=True)
-
    with open(args.output_file, "w", encoding="utf-8") as out:
        out.write("// Auto-generated shader embedding\n")
        out.write("#include <string>\n\n")
        for fname in sorted(os.listdir(args.input_dir)):
            if fname.endswith(".wgsl"):
-                generate_variants(fname, args.input_dir, args.output_dir, out)
+                shader_path = os.path.join(args.input_dir, fname)
+                shader_name = fname.replace(".wgsl", "")
+
+                with open(shader_path, "r", encoding="utf-8") as f:
+                    shader_code = f.read()
+
+                write_shader(shader_name, shader_code, None, out, args.input_dir)


 if __name__ == "__main__":