Author: Maciej Fijalkowski <[email protected]>
Branch: jitframe-on-heap
Changeset: r61449:4d773b5d16f7
Date: 2013-02-19 11:40 +0200
http://bitbucket.org/pypy/pypy/changeset/4d773b5d16f7/
Log: better safe than sorry
diff --git a/rpython/jit/backend/x86/assembler.py
b/rpython/jit/backend/x86/assembler.py
--- a/rpython/jit/backend/x86/assembler.py
+++ b/rpython/jit/backend/x86/assembler.py
@@ -323,11 +323,11 @@
# save to store stuff 2 locations away on the stack.
# we have to save all the things that can potentially
# be returned from a call
- mc.MOV_sr(3 * WORD, eax.value) # save for later
- mc.MOVSD_sx(6 * WORD, xmm0.value)
+ mc.SUB_ri(esp.value, 6 * WORD) # align and reserve some space
+ mc.MOV_sr(WORD, eax.value) # save for later
+ mc.MOVSD_sx(3 * WORD, xmm0.value)
if IS_X86_32:
mc.MOV_sr(4 * WORD, edx.value)
- mc.SUB_ri(esp.value, 2 * WORD) # align
mc.MOV_sr(0, ebp.value)
else:
mc.MOV_rr(edi.value, ebp.value)
@@ -354,10 +354,10 @@
mc.RET16_i(WORD)
else:
if IS_X86_32:
- mc.LEA_rs(esp.value, 2 * WORD)
mc.MOV_rs(edx.value, 4 * WORD)
- mc.MOVSD_xs(xmm0.value, 6 * WORD)
- mc.MOV_rs(eax.value, 3 * WORD) # restore
+ mc.MOVSD_xs(xmm0.value, 3 * WORD)
+ mc.MOV_rs(eax.value, WORD) # restore
+ mc.LEA_rs(esp.value, 6 * WORD)
mc.RET()
rawstart = mc.materialize(self.cpu.asmmemmgr, [])
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