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i965/nir/vec4: Mark as unreachable ops that should be already lowered

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NIR ALU operations:
   * nir_op_fabs
   * nir_op_iabs
   * nir_op_fneg
   * nir_op_ineg
   * nir_op_fsat
        should be lowered by lower_source mods

   * nir_op_fdiv
        should be lowered in the compiler by DIV_TO_MUL_RCP.

   * nir_op_fmod
        should be lowered in the compiler by MOD_TO_FLOOR.

   * nir_op_fsub
   * nir_op_isub
        should be handled by ir_sub_to_add_neg.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
This commit is contained in:
Antia Puentes 2015-06-17 10:10:44 +02:00 • committed by Jason Ekstrand
parent 16072834ba
commit 9b4a6fa4c0
1 changed files with 17 additions and 0 deletions
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17
src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
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@ -1242,6 +1242,23 @@ vec4_visitor::nir_emit_alu(nir_alu_instr *instr)
break;
}
case nir_op_fabs:
case nir_op_iabs:
case nir_op_fneg:
case nir_op_ineg:
case nir_op_fsat:
unreachable("not reached: should be lowered by lower_source mods");
case nir_op_fdiv:
unreachable("not reached: should be lowered by DIV_TO_MUL_RCP in the compiler");
case nir_op_fmod:
unreachable("not reached: should be lowered by MOD_TO_FLOOR in the compiler");
case nir_op_fsub:
case nir_op_isub:
unreachable("not reached: should be handled by ir_sub_to_add_neg");
default:
unreachable("Unimplemented ALU operation");
}