Author: Armin Rigo <[email protected]>
Branch: ppc-jit-backend
Changeset: r56787:43f7f50df383
Date: 2012-08-22 10:28 +0200
http://bitbucket.org/pypy/pypy/changeset/43f7f50df383/
Log: Write down the result of tedious investigation
diff --git a/pypy/jit/backend/ppc/ppc_assembler.py
b/pypy/jit/backend/ppc/ppc_assembler.py
--- a/pypy/jit/backend/ppc/ppc_assembler.py
+++ b/pypy/jit/backend/ppc/ppc_assembler.py
@@ -444,6 +444,9 @@
# stack still aligned
mc.call(slowpathaddr)
+ XXX ^^^ the above call clobbers at least 48(r1), which
+ XXX contains the mc.store(r3.value)
+
with scratch_reg(mc):
mc.load_imm(r.SCRATCH, self.cpu.pos_exception())
mc.loadx(r.SCRATCH.value, 0, r.SCRATCH.value)
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