From: Jason Ekstrand <jason.ekstrand@intel.com>
Date: Thu, 17 Mar 2016 20:39:07 +0000 (-0700)
Subject: i965/peephole_ffma: Don't fuse exact adds
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=865e83b9ec86c9ccec7100dfae9f80ff2969753c;p=mesa.git

i965/peephole_ffma: Don't fuse exact adds

Reviewed-by: Francisco Jerez <currojerez@riseup.net>
---

diff --git a/src/mesa/drivers/dri/i965/brw_nir_opt_peephole_ffma.c b/src/mesa/drivers/dri/i965/brw_nir_opt_peephole_ffma.c
index 49810c22cfa..6e8b1f99505 100644
--- a/src/mesa/drivers/dri/i965/brw_nir_opt_peephole_ffma.c
+++ b/src/mesa/drivers/dri/i965/brw_nir_opt_peephole_ffma.c
@@ -168,7 +168,9 @@ brw_nir_opt_peephole_ffma_block(nir_block *block, void *void_state)
       if (add->op != nir_op_fadd)
          continue;
 
-      /* TODO: Maybe bail if this expression is considered "precise"? */
+      assert(add->dest.dest.is_ssa);
+      if (add->exact)
+         continue;
 
       assert(add->src[0].src.is_ssa && add->src[1].src.is_ssa);