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Merge commit 'fda0bb9588912a3e0606e880ca9f6e913cf8a5a4' into subtree-update_cg_gcc_2025-06-18

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This commit is contained in:
Guillaume Gomez
2025-06-18 15:11:44 +02:00
parent 6f935a044d fda0bb9588
commit c48d8d4d80
54 changed files with 11917 additions and 10357 deletions
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26
compiler/rustc_codegen_gcc/tools/generate_intrinsics.py
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@@ -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!")