[pypy-commit] pypy ppc-jit-backend: use architecture independent cmp_op instead of cmpwi/cmpdi

[hager]

Author: hager <sven.hager at uni-duesseldorf.de>
Branch: ppc-jit-backend
Changeset: r52974:b2a3369d7362
Date: 2012-02-28 14:04 +0100
http://bitbucket.org/pypy/pypy/changeset/b2a3369d7362/

Log:	use architecture independent cmp_op instead of cmpwi/cmpdi

diff --git a/pypy/jit/backend/ppc/opassembler.py b/pypy/jit/backend/ppc/opassembler.py
--- a/pypy/jit/backend/ppc/opassembler.py
+++ b/pypy/jit/backend/ppc/opassembler.py
@@ -910,14 +910,13 @@
                 if bitpos > 0:
                     self.mc.rlwinm(r.SCRATCH.value, r.SCRATCH.value,
                                    32 - bitpos, 31, 31)
-                # test whether this bit is set
-                self.mc.cmpwi(0, r.SCRATCH.value, 1)
             else:
                 if bitpos > 0:
                     self.mc.rldicl(r.SCRATCH.value, r.SCRATCH.value,
                                    64 - bitpos, 63)
-                # test whether this bit is set
-                self.mc.cmpdi(0, r.SCRATCH.value, 1)
+
+            # test whether this bit is set
+            self.mc.cmp_op(0, r.SCRATCH.value, 1, imm=True)
 
         jz_location = self.mc.currpos()
         self.mc.nop()