Author: Armin Rigo <ar...@tunes.org>
Branch:
Changeset: r53786:7b8cadc63e78
Date: 2012-03-16 18:52 +0100
http://bitbucket.org/pypy/pypy/changeset/7b8cadc63e78/
Log: Save a word on x86-64.
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
@@ -2117,9 +2117,12 @@
# First, we need to save away the registers listed in
# 'save_registers' that are not callee-save. XXX We assume that
# the XMM registers won't be modified. We store them in
- # [ESP+4], [ESP+8], etc., leaving enough room in [ESP] for the
- # single argument to closestack_addr below.
- p = WORD
+ # [ESP+4], [ESP+8], etc.; on x86-32 we leave enough room in [ESP]
+ # for the single argument to closestack_addr below.
+ if IS_X86_32:
+ p = WORD
+ elif IS_X86_64:
+ p = 0
for reg in self._regalloc.rm.save_around_call_regs:
if reg in save_registers:
self.mc.MOV_sr(p, reg.value)
@@ -2174,7 +2177,10 @@
#
self._emit_call(-1, imm(self.releasegil_addr), args)
# Finally, restore the registers saved above.
- p = WORD
+ if IS_X86_32:
+ p = WORD
+ elif IS_X86_64:
+ p = 0
for reg in self._regalloc.rm.save_around_call_regs:
if reg in save_registers:
self.mc.MOV_rs(reg.value, p)
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