Mesa (master): pan/bit: Interpret ROUND

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Module: Mesa
Branch: master
Commit: 6bbedf8359a0dfb0c6165277eea2635e73e845f8
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=6bbedf8359a0dfb0c6165277eea2635e73e845f8

Author: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Date:   Thu Apr 30 17:32:56 2020 -0400

pan/bit: Interpret ROUND

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4844>

---

 src/panfrost/bifrost/test/bi_interpret.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/panfrost/bifrost/test/bi_interpret.c b/src/panfrost/bifrost/test/bi_interpret.c
index f858b812d95..ec319650e68 100644
--- a/src/panfrost/bifrost/test/bi_interpret.c
+++ b/src/panfrost/bifrost/test/bi_interpret.c
@@ -189,6 +189,10 @@ bit_make_float(fma, (a * b) + c);
 bit_make_poly(mov, a);
 bit_make_poly(min, MIN2(a, b));
 bit_make_poly(max, MAX2(a, b));
+bit_make_float_2(floor, floorf(a), floor(a));
+bit_make_float_2(ceil,  ceilf(a), ceil(a));
+bit_make_float_2(trunc, truncf(a), trunc(a));
+bit_make_float_2(nearbyint, nearbyintf(a), nearbyint(a));
 
 /* Modifiers */
 
@@ -606,8 +610,22 @@ bit_step(struct bit_state *s, bi_instruction *ins, bool FMA)
         }
 
         case BI_SHIFT:
-        case BI_ROUND:
                 unreachable("Unsupported op");
+
+        case BI_ROUND: {
+                if (ins->roundmode == BIFROST_RTP) {
+                        bfloat(bit_f64ceil, bit_f32ceil);
+                } else if (ins->roundmode == BIFROST_RTN) {
+                        bfloat(bit_f64floor, bit_f32floor);
+                } else if (ins->roundmode == BIFROST_RTE) {
+                        bfloat(bit_f64nearbyint, bit_f32nearbyint);
+                } else if (ins->roundmode == BIFROST_RTZ) {
+                        bfloat(bit_f64trunc, bit_f32trunc);
+                } else
+                        unreachable("Invalid");
+
+                break;
+        }
         
         /* We only interpret vertex shaders */
         case BI_DISCARD: