diff options
Diffstat (limited to 'compiler/rustc_codegen_gcc/tools/generate_intrinsics.py')
| -rw-r--r-- | compiler/rustc_codegen_gcc/tools/generate_intrinsics.py | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/compiler/rustc_codegen_gcc/tools/generate_intrinsics.py b/compiler/rustc_codegen_gcc/tools/generate_intrinsics.py index 181f1e501a4..ed0ebf00719 100644 --- a/compiler/rustc_codegen_gcc/tools/generate_intrinsics.py +++ b/compiler/rustc_codegen_gcc/tools/generate_intrinsics.py @@ -168,25 +168,39 @@ def update_intrinsics(llvm_path, llvmint, llvmint2): os.path.dirname(os.path.abspath(__file__)), "../src/intrinsic/archs.rs", ) + # A hashmap of all architectures. This allows us to first match on the architecture, and then on the intrinsics. + # This speeds up the comparison, and makes our code considerably smaller. + # Since all intrinsic names start with "llvm.", we skip that prefix. print("Updating content of `{}`...".format(output_file)) with open(output_file, "w", encoding="utf8") as out: out.write("// File generated by `rustc_codegen_gcc/tools/generate_intrinsics.py`\n") out.write("// DO NOT EDIT IT!\n") - out.write("match name {\n") + out.write("/// Translate a given LLVM intrinsic name to an equivalent GCC one.\n") + out.write("fn map_arch_intrinsic(name:&str)->&str{\n") + out.write('let Some(name) = name.strip_prefix("llvm.") else { unimplemented!("***** unsupported LLVM intrinsic {}", name) };\n') + out.write('let Some((arch, name)) = name.split_once(\'.\') else { unimplemented!("***** unsupported LLVM intrinsic {}", name) };\n') + out.write("match arch {\n") for arch in archs: if len(intrinsics[arch]) == 0: continue + out.write("\"{}\" => {{ #[allow(non_snake_case)] fn {}(name: &str) -> &str {{ match name {{".format(arch,arch)) intrinsics[arch].sort(key=lambda x: (x[0], x[2])) out.write(' // {}\n'.format(arch)) for entry in intrinsics[arch]: + llvm_name = entry[0].removeprefix("llvm."); + llvm_name = llvm_name.removeprefix(arch); + llvm_name = llvm_name.removeprefix("."); if entry[2] is True: # if it is a duplicate - out.write(' // [DUPLICATE]: "{}" => "{}",\n'.format(entry[0], entry[1])) + out.write(' // [DUPLICATE]: "{}" => "{}",\n'.format(llvm_name, entry[1])) elif "_round_mask" in entry[1]: - out.write(' // [INVALID CONVERSION]: "{}" => "{}",\n'.format(entry[0], entry[1])) + out.write(' // [INVALID CONVERSION]: "{}" => "{}",\n'.format(llvm_name, entry[1])) else: - out.write(' "{}" => "{}",\n'.format(entry[0], entry[1])) - out.write(' _ => unimplemented!("***** unsupported LLVM intrinsic {}", name),\n') - out.write("}\n") + out.write(' "{}" => "{}",\n'.format(llvm_name, entry[1])) + out.write(' _ => unimplemented!("***** unsupported LLVM intrinsic {}", name),\n') + out.write("}} }} {}(name) }}\n,".format(arch)) + out.write(' _ => unimplemented!("***** unsupported LLVM architecture {}", name),\n') + out.write("}\n}") + subprocess.call(["rustfmt", output_file]) print("Done!") |