Revert "i965: Do FS SLT, SGT, and friends using CMP, SEL instead of CMP, MOV, MOV."
This reverts commit 46450c1f3f
. I was
wrong about null reg behavior -- it reads undefined, not 0. And
they're not kidding.
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@ -545,8 +545,11 @@ void emit_sop(struct brw_compile *p,
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for (i = 0; i < 4; i++) {
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if (mask & (1<<i)) {
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brw_push_insn_state(p);
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brw_CMP(p, brw_null_reg(), cond, arg1[i], arg0[i]);
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brw_SEL(p, dst[i], brw_null_reg(), brw_imm_f(1.0));
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brw_CMP(p, brw_null_reg(), cond, arg0[i], arg1[i]);
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brw_set_predicate_control(p, BRW_PREDICATE_NONE);
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brw_MOV(p, dst[i], brw_imm_f(0));
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brw_set_predicate_control(p, BRW_PREDICATE_NORMAL);
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brw_MOV(p, dst[i], brw_imm_f(1.0));
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brw_pop_insn_state(p);
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}
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}
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