[pypy-commit] pypy jit-leaner-frontend: be a bit more specific about problems

[fijal]

Author: fijal
Branch: jit-leaner-frontend
Changeset: r83361:dc43144bc017
Date: 2016-03-25 16:16 +0200
http://bitbucket.org/pypy/pypy/changeset/dc43144bc017/

Log:	be a bit more specific about problems

diff --git a/rpython/rlib/jit.py b/rpython/rlib/jit.py
--- a/rpython/rlib/jit.py
+++ b/rpython/rlib/jit.py
@@ -782,6 +782,12 @@
     """Reset one of the tunable JIT parameters to its default value."""
     _set_param(driver, name, None)
 
+class TraceLimitTooHigh(Exception):
+    """ This is raised when the trace limit is too high for the chosen
+    opencoder model, recompile your interpreter with 'big' as
+    jit_opencoder_model
+    """
+
 def set_user_param(driver, text):
     """Set the tunable JIT parameters from a user-supplied string
     following the format 'param=value,param=value', or 'off' to
@@ -809,6 +815,8 @@
             for name1, _ in unroll_parameters:
                 if name1 == name and name1 != 'enable_opts':
                     try:
+                        if name1 == 'trace_limit' and int(value) > 2**14:
+                            raise TraceLimitTooHigh
                         set_param(driver, name1, int(value))
                     except ValueError:
                         raise