Author: hager <sven.ha...@uni-duesseldorf.de>
Branch: ppc-jit-backend
Changeset: r48307:28ec327820ce
Date: 2011-10-21 11:52 +0200
http://bitbucket.org/pypy/pypy/changeset/28ec327820ce/
Log: (bivab, hager): Implemented GUARD_FALSE.
diff --git a/pypy/jit/backend/ppc/ppcgen/opassembler.py
b/pypy/jit/backend/ppc/ppcgen/opassembler.py
--- a/pypy/jit/backend/ppc/ppcgen/opassembler.py
+++ b/pypy/jit/backend/ppc/ppcgen/opassembler.py
@@ -174,6 +174,12 @@
# # ^^^^ If this condition is met,
# # then the guard fails.
+ def emit_guard_false(self, op, arglocs, regalloc):
+ l0 = arglocs[0]
+ failargs = arglocs[1:]
+ self.mc.cmpi(l0.value, 0)
+ self._emit_guard(op, failargs, c.NE)
+
# TODO - Evaluate whether this can be done with
# SO bit instead of OV bit => usage of CR
# instead of XER could be more efficient
diff --git a/pypy/jit/backend/ppc/ppcgen/regalloc.py
b/pypy/jit/backend/ppc/ppcgen/regalloc.py
--- a/pypy/jit/backend/ppc/ppcgen/regalloc.py
+++ b/pypy/jit/backend/ppc/ppcgen/regalloc.py
@@ -269,6 +269,8 @@
self.possibly_free_vars(op.getfailargs())
return args
+ prepare_guard_false = prepare_guard_true
+
def prepare_guard_no_overflow(self, op):
locs = self._prepare_guard(op)
self.possibly_free_vars(op.getfailargs())
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