Author: Armin Rigo <[email protected]>
Branch: remove-globals-in-jit
Changeset: r59351:0f15c980ba05
Date: 2012-12-07 01:11 +0100
http://bitbucket.org/pypy/pypy/changeset/0f15c980ba05/
Log: Tentative fix. Seems to not occur on Linux64: an often-prebuilt
descr is always at an address that fits 32 bits.
diff --git a/pypy/jit/backend/x86/assembler.py
b/pypy/jit/backend/x86/assembler.py
--- a/pypy/jit/backend/x86/assembler.py
+++ b/pypy/jit/backend/x86/assembler.py
@@ -2409,7 +2409,11 @@
value = fail_descr.hide(self.cpu)
rgc._make_sure_does_not_move(value)
value = rffi.cast(lltype.Signed, value)
- self.mc.CMP_mi((eax.value, _offset), value)
+ if rx86.fits_in_32bits(value):
+ self.mc.CMP_mi((eax.value, _offset), value)
+ else:
+ self.mc.MOV_ri(X86_64_SCRATCH_REG.value, value)
+ self.mc.CMP_mr((eax.value, _offset), X86_64_SCRATCH_REG.value)
# patched later
self.mc.J_il8(rx86.Conditions['E'], 0) # goto B if we get
'done_with_this_frame'
je_location = self.mc.get_relative_pos()
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