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x86/x64: Limit VLOAD fusion to simple cases.

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Reported by ccagml.
This commit is contained in:
Mike Pall 2022-07-27 11:32:33 +02:00
parent 3065c910ad
commit e1339aed3d
1 changed files with 2 additions and 1 deletions
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3
src/lj_asm_x86.h
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@ -485,7 +485,8 @@ static Reg asm_fuseload(ASMState *as, IRRef ref, RegSet allow)
asm_fusexref(as, ir->op1, xallow);
return RID_MRM;
}
} else if (ir->o == IR_VLOAD && !(LJ_GC64 && irt_isaddr(ir->t))) {
} else if (ir->o == IR_VLOAD && IR(ir->op1)->o == IR_AREF &&
!(LJ_GC64 && irt_isaddr(ir->t))) {
asm_fuseahuref(as, ir->op1, xallow);
as->mrm.ofs += 8 * ir->op2;
return RID_MRM;