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intel/vec4: Refactor operand fixing for ffma and flrp

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Reviewed-by: Matt Turner <mattst88@gmail.com>
This commit is contained in:
Ian Romanick
2019-06-06 11:12:14 -07:00
parent 8305766e0e
commit 6f6bc842f6
2 changed files with 16 additions and 8 deletions
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3
src/intel/compiler/brw_vec4.h
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@@ -242,6 +242,9 @@ public:
*/
src_reg emit_uniformize(const src_reg &src);
/** Fix all float operands of a 3-source instruction. */
void fix_float_operands(src_reg op[3]);
src_reg fix_3src_operand(const src_reg &src);
src_reg resolve_source_modifiers(const src_reg &src);

21
src/intel/compiler/brw_vec4_nir.cpp
View File

@@ -1130,6 +1130,17 @@ try_immediate_source(const nir_alu_instr *instr, src_reg *op,
return idx;
}
void
vec4_visitor::fix_float_operands(src_reg op[3])
{
bool fixed[3] = { false, false, false };
for (unsigned i = 0; i < 3; i++) {
if (!fixed[i])
op[i] = fix_3src_operand(op[i]);
}
}
void
vec4_visitor::nir_emit_alu(nir_alu_instr *instr)
{
@@ -1916,20 +1927,14 @@ vec4_visitor::nir_emit_alu(nir_alu_instr *instr)
inst = emit(ADD(dst, src_reg(mul_dst), op[2]));
inst->saturate = instr->dest.saturate;
} else {
op[0] = fix_3src_operand(op[0]);
op[1] = fix_3src_operand(op[1]);
op[2] = fix_3src_operand(op[2]);
fix_float_operands(op);
inst = emit(MAD(dst, op[2], op[1], op[0]));
inst->saturate = instr->dest.saturate;
}
break;
case nir_op_flrp:
op[0] = fix_3src_operand(op[0]);
op[1] = fix_3src_operand(op[1]);
op[2] = fix_3src_operand(op[2]);
fix_float_operands(op);
inst = emit(LRP(dst, op[2], op[1], op[0]));
inst->saturate = instr->dest.saturate;
break;