[pypy-commit] pypy ppc-backend-2: (edelsohn, bivab): Remove f0 from managed float registers.

[edelsohn]

Author: edelsohn
Branch: ppc-backend-2
Changeset: r55418:ce6582090701
Date: 2012-06-05 12:31 -0400
http://bitbucket.org/pypy/pypy/changeset/ce6582090701/

Log:	(edelsohn, bivab): Remove f0 from managed float registers.

diff --git a/pypy/jit/backend/ppc/register.py b/pypy/jit/backend/ppc/register.py
--- a/pypy/jit/backend/ppc/register.py
+++ b/pypy/jit/backend/ppc/register.py
@@ -32,7 +32,7 @@
                 r19, r20, r21, r22, r23, r24, r25, r26,
                 r27, r28, r29, r30]
 
-MANAGED_FP_REGS = VOLATILES_FLOAT + NONVOLATILES_FLOAT
+MANAGED_FP_REGS = VOLATILES_FLOAT[1:] + NONVOLATILES_FLOAT
 
 PARAM_REGS = [r3, r4, r5, r6, r7, r8, r9, r10]
 PARAM_FPREGS = [f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13]
@@ -41,3 +41,6 @@
     if reg > r13.value:
         return reg - 4
     return reg - 3
+
+def get_managed_fpreg_index(reg):
+    return reg - 1