vc4: Fix LT/GE set-0-or-1 compares.
We were using the integer sub, which worked for the common case of EQ and NE. Fixes fs-lessThan-ivec2-ivec2 and other tests.
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@ -411,7 +411,7 @@ vc4_generate_code(struct qcompile *c)
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case QOP_SGE:
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case QOP_SLT:
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fixup_raddr_conflict(c, src[0], &src[1]);
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queue(c, qpu_inst(qpu_a_SUB(qpu_ra(QPU_W_NOP),
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queue(c, qpu_inst(qpu_a_FSUB(qpu_ra(QPU_W_NOP),
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src[0], src[1]),
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qpu_m_NOP()));
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*last_inst(c) |= QPU_SF;
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