Mesa (master): tgsi: implement ddiv opcode

[Roland Scheidegger]

Module: Mesa
Branch: master
Commit: 3b575a955c1d84744a65160e2c45f0ce407effd8
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=3b575a955c1d84744a65160e2c45f0ce407effd8

Author: Roland Scheidegger <sroland at vmware.com>
Date:   Mon Jan 23 18:10:44 2017 +0100

tgsi: implement ddiv opcode

softpipe (along with llvmpipe) claims to support arb_gpu_shader_fp64,
so we really need to support that opcode.

Cc: 17.0 <mesa-stable at lists.freedesktop.org>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle at amd.com>
Reviewed-by: Jose Fonseca <jfonseca at vmware.com>

---

 src/gallium/auxiliary/tgsi/tgsi_exec.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c
index 915cd10..2135ad1 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c
@@ -210,6 +210,16 @@ micro_dadd(union tgsi_double_channel *dst,
 }
 
 static void
+micro_ddiv(union tgsi_double_channel *dst,
+          const union tgsi_double_channel *src)
+{
+   dst->d[0] = src[0].d[0] / src[1].d[0];
+   dst->d[1] = src[0].d[1] / src[1].d[1];
+   dst->d[2] = src[0].d[2] / src[1].d[2];
+   dst->d[3] = src[0].d[3] / src[1].d[3];
+}
+
+static void
 micro_ddx(union tgsi_exec_channel *dst,
           const union tgsi_exec_channel *src)
 {
@@ -5995,6 +6005,10 @@ exec_instruction(
       exec_double_binary(mach, inst, micro_dadd, TGSI_EXEC_DATA_DOUBLE);
       break;
 
+   case TGSI_OPCODE_DDIV:
+      exec_double_binary(mach, inst, micro_ddiv, TGSI_EXEC_DATA_DOUBLE);
+      break;
+
    case TGSI_OPCODE_DMUL:
       exec_double_binary(mach, inst, micro_dmul, TGSI_EXEC_DATA_DOUBLE);
       break;