[pypy-commit] pypy share-guard-info: don't optimize away guard_overflow

[fijal]

Author: Maciej Fijalkowski <fijall at gmail.com>
Branch: share-guard-info
Changeset: r79792:d5cb860b19b2
Date: 2015-09-23 17:20 +0200
http://bitbucket.org/pypy/pypy/changeset/d5cb860b19b2/

Log:	don't optimize away guard_overflow

diff --git a/rpython/jit/metainterp/optimizeopt/optimizer.py b/rpython/jit/metainterp/optimizeopt/optimizer.py
--- a/rpython/jit/metainterp/optimizeopt/optimizer.py
+++ b/rpython/jit/metainterp/optimizeopt/optimizer.py
@@ -572,7 +572,7 @@
                     self.origin_pc == op.rd_frame_info_list.pc):
                     self.origin_jitcode = None
                     self.origin_pc = 0
-                else:
+                elif op.getopnum() != rop.GUARD_OVERFLOW:
                     self.potentially_change_ovf_op_to_no_ovf(op)
                     return # we optimize the guard
             self.metainterp_sd.profiler.count(jitprof.Counters.OPT_GUARDS)