nv50: fix potential null deref in insn modifer optimization pass
Bug introduced in 34980cd153
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@ -462,8 +462,10 @@ nv_pass_lower_mods(struct nv_pass *ctx, struct nv_basic_block *b)
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mi->saturate = 1;
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mi->def[0] = nvi->def[0];
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mi->def[0]->insn = mi;
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mi->flags_def = nvi->flags_def;
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mi->flags_def->insn = mi;
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if (nvi->flags_def) {
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mi->flags_def = nvi->flags_def;
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mi->flags_def->insn = mi;
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}
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nv_nvi_delete(nvi);
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}
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}
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