DrSocalkwe3n/luajit
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Merge branch 'master' into v2.1

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This commit is contained in:
Mike Pall
2014-10-08 22:06:23 +02:00
parent be64823d95 6d0654d3ec
commit d2809bec24
2 changed files with 10 additions and 1 deletions
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10
src/lj_asm_x86.h
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@@ -325,6 +325,14 @@ static Reg asm_fuseload(ASMState *as, IRRef ref, RegSet allow)
as->mrm.base = as->mrm.idx = RID_NONE;
return RID_MRM;
}
} else if (ir->o == IR_KINT64) {
RegSet avail = as->freeset & ~as->modset & RSET_GPR;
lua_assert(allow != RSET_EMPTY);
if (!(avail & (avail-1))) { /* Fuse if less than two regs available. */
as->mrm.ofs = ptr2addr(ir_kint64(ir));
as->mrm.base = as->mrm.idx = RID_NONE;
return RID_MRM;
}
} else if (mayfuse(as, ref)) {
RegSet xallow = (allow & RSET_GPR) ? allow : RSET_GPR;
if (ir->o == IR_SLOAD) {
@@ -361,7 +369,7 @@ static Reg asm_fuseload(ASMState *as, IRRef ref, RegSet allow)
return RID_MRM;
}
}
if (!(as->freeset & allow) &&
if (!(as->freeset & allow) && !irref_isk(ref) &&
(allow == RSET_EMPTY || ra_hasspill(ir->s) || iscrossref(as, ref)))
goto fusespill;
return ra_allocref(as, ref, allow);