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intel/vec4: Fix nir_op_b2[fi] with 64-bit result 

This is valid NIR but you can't actually hit this case today.  GLSL IR
doesn't have a bool to double opcode; it does f2d(b2f(x)).  In SPIR-V we
don't have any to/from bool conversion opcodes at all.  However, the
next commit will make us start generating it so we should be ready.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Jason Ekstrand 2018-10-10 22:04:17 -05:00
parent 497675c21e
commit 0e0dc596a2
1 changed files with 6 additions and 1 deletions
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7
src/intel/compiler/brw_vec4_nir.cpp
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@ -1586,7 +1586,12 @@ vec4_visitor::nir_emit_alu(nir_alu_instr *instr)
case nir_op_b2i:
case nir_op_b2f:
emit(MOV(dst, negate(op[0])));
if (nir_dest_bit_size(instr->dest.dest) > 32) {
assert(dst.type == BRW_REGISTER_TYPE_DF);
emit_conversion_to_double(dst, negate(op[0]), false);
} else {
emit(MOV(dst, negate(op[0])));
}
break;
case nir_op_f2b: