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Fix PHI stack slot syncing.

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This commit is contained in:
Mike Pall
2012-05-07 23:16:19 +02:00
parent afc17b3c1a
commit 0d824b7d14
8 changed files with 97 additions and 5 deletions
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14
src/lj_emit_ppc.h
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@@ -142,12 +142,18 @@ typedef MCode *MCLabel;
static void emit_condbranch(ASMState *as, PPCIns pi, PPCCC cc, MCode *target)
{
MCode *p = as->mcp;
ptrdiff_t delta = ((char *)target - (char *)p) + 4;
MCode *p = --as->mcp;
ptrdiff_t delta = (char *)target - (char *)p;
lua_assert(((delta + 0x8000) >> 16) == 0);
pi ^= (delta & 0x8000) * (PPCF_Y/0x8000);
*--p = pi | PPCF_CC(cc) | ((uint32_t)delta & 0xffffu);
as->mcp = p;
*p = pi | PPCF_CC(cc) | ((uint32_t)delta & 0xffffu);
}
static void emit_jmp(ASMState *as, MCode *target)
{
MCode *p = --as->mcp;
ptrdiff_t delta = (char *)target - (char *)p;
*p = PPCI_B | (delta & 0x03fffffcu);
}
static void emit_call(ASMState *as, void *target)