Author: Alex Gaynor <[email protected]>
Branch: jit-codewriter-force-cast-refactor
Changeset: r46834:7a27b8efd0d5
Date: 2011-08-27 18:47 -0400
http://bitbucket.org/pypy/pypy/changeset/7a27b8efd0d5/
Log: First pass at handling conversions from longlong to some other int.
diff --git a/pypy/jit/codewriter/jtransform.py
b/pypy/jit/codewriter/jtransform.py
--- a/pypy/jit/codewriter/jtransform.py
+++ b/pypy/jit/codewriter/jtransform.py
@@ -805,6 +805,25 @@
assert False
def _int_to_int_cast(self, v_arg, v_result):
+ longlong_arg = longlong.is_longlong(v_arg)
+ longlong_res = longlong.is_longlong(v_result)
+
+ if longlong_arg and longlong_res:
+ return
+ elif longlong_arg:
+ v = varoftype(lltype.Signed)
+ op1 = self.rewrite_operation(
+ SpaceOperation('truncate_longlong_to_int', [v_arg], v)
+ )
+ op2 = SpaceOperation('force_cast', [v], v_result)
+ oplist = self.rewrite_operation(op2)
+ if not oplist:
+ op1.result = v
+ oplist = []
+ return [op1] + oplist
+ elif longlong_res:
+ assert False
+
size1, unsigned1 = rffi.size_and_sign(v_arg.concretetype)
size2, unsigned2 = rffi.size_and_sign(v_result.concretetype)
assert size1 <= rffi.sizeof(lltype.Signed)
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