nir/algebraic: Allow for flagging operations as being inexact

Reviewed-by: Francisco Jerez <currojerez@riseup.net>
2016-03-17 11:04:49 -07:00
parent a6f25fa7d7
commit 3a7cb6534c
4 changed files with 26 additions and 2 deletions
--- a/src/compiler/nir/nir_search.c
+++ b/src/compiler/nir/nir_search.c
@@ -238,6 +238,10 @@ match_expression(const nir_search_expression *expr, nir_alu_instr *instr,
   if (instr->op != expr->opcode)
      return false;

+   assert(instr->dest.dest.is_ssa);
+   if (expr->inexact && instr->exact)
+      return false;
+
   assert(!instr->dest.saturate);
   assert(nir_op_infos[instr->op].num_inputs > 0);