Author: Richard Plangger <planri...@gmail.com>
Branch:
Changeset: r83678:13f292553b0d
Date: 2016-04-15 09:00 +0200
http://bitbucket.org/pypy/pypy/changeset/13f292553b0d/
Log: translation issue resolved
diff --git a/rpython/jit/backend/zarch/regalloc.py
b/rpython/jit/backend/zarch/regalloc.py
--- a/rpython/jit/backend/zarch/regalloc.py
+++ b/rpython/jit/backend/zarch/regalloc.py
@@ -336,12 +336,15 @@
def _relocate_forbidden_variable(self, reg, var, reverse_mapping,
forbidden_vars, forbidden_reg):
for candidate in r.MANAGED_REGS:
+ # move register of var to another register
+ # thus it is not allowed to bei either reg or forbidden_reg
if candidate is reg or candidate is forbidden_reg:
continue
- if candidate not in forbidden_vars:
- var = reverse_mapping.get(candidate, None)
- if var is not None:
- self._sync_var(var)
+ # neither can we allow to move it to a register of another
forbidden variable
+ candidate_var = reverse_mapping.get(candidate, None)
+ if not candidate_var or candidate_var not in forbidden_vars:
+ if candidate_var is not None:
+ self._sync_var(candidate_var)
self.assembler.regalloc_mov(reg, candidate)
self.reg_bindings[var] = candidate
reverse_mapping[reg] = var
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