Use the upstream llvm_interpret function (#2723)

* Refactor interpreter function to streamline GST data interpretation

- Simplified the `interpret` function by removing error handling for subprocess calls and directly utilizing `llvm_interpret`.
- Updated the `interpret` function to improve clarity and efficiency by integrating the filtering and conversion of GST data into a single line.
- Enhanced documentation to clarify the purpose of the `interpret` function.

* Update kevm-pyk/src/kevm_pyk/interpreter.py

Co-authored-by: Tamás Tóth <[email protected]>

---------

Co-authored-by: Tamás Tóth <[email protected]>

Author: Stevengre

Diff for: kevm-pyk/src/kevm_pyk/interpreter.py

@@ -3,31 +3,17 @@
 from typing import TYPE_CHECKING
 
 from pyk.kdist import kdist
-from pyk.kore.parser import KoreParser
-from pyk.utils import run_process_2
+from pyk.ktool.krun import llvm_interpret
 
 from .gst_to_kore import filter_gst_keys, gst_to_kore
 
 if TYPE_CHECKING:
-    from subprocess import CompletedProcess
     from typing import Any
 
     from pyk.kore.syntax import Pattern
 
 
 def interpret(gst_data: Any, schedule: str, mode: str, chainid: int, usegas: bool, *, check: bool = True) -> Pattern:
-    proc_res = _interpret(gst_data, schedule, mode, chainid, usegas)
-
-    if check:
-        proc_res.check_returncode()
-
-    kore = KoreParser(proc_res.stdout).pattern()
-    return kore
-
-
-def _interpret(gst_data: Any, schedule: str, mode: str, chainid: int, usegas: bool) -> CompletedProcess:
-    gst_data_filtered = filter_gst_keys(gst_data)
-    interpreter = kdist.get('evm-semantics.llvm') / 'interpreter'
-    init_kore = gst_to_kore(gst_data_filtered, schedule, mode, chainid, usegas)
-    proc_res = run_process_2([str(interpreter), '/dev/stdin', '-1', '/dev/stdout'], input=init_kore.text, check=False)
-    return proc_res
+    """Interpret the given GST data using the LLVM backend."""
+    init_kore = gst_to_kore(filter_gst_keys(gst_data), schedule, mode, chainid, usegas)
+    return llvm_interpret(kdist.get('evm-semantics.llvm'), init_kore, check=check)