Mesa (master): lima/ppir: Add fsat op

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Module: Mesa
Branch: master
Commit: fa6ea16a8daf82886b7fc67c18f9ea87d2388cfd
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=fa6ea16a8daf82886b7fc67c18f9ea87d2388cfd

Author: Andreas Baierl <ichgeh at imkreisrum.de>
Date:   Fri Jun 21 16:13:44 2019 +0200

lima/ppir: Add fsat op

Signed-off-by: Andreas Baierl <ichgeh at imkreisrum.de>
Reviewed-by: Qiang Yu <yuq825 at gmail.com>

---

 src/gallium/drivers/lima/ir/pp/lower.c | 15 +++++++++++++++
 src/gallium/drivers/lima/ir/pp/nir.c   |  1 +
 src/gallium/drivers/lima/ir/pp/node.c  |  3 +++
 src/gallium/drivers/lima/ir/pp/ppir.h  |  1 +
 4 files changed, 20 insertions(+)

diff --git a/src/gallium/drivers/lima/ir/pp/lower.c b/src/gallium/drivers/lima/ir/pp/lower.c
index 2e87754d893..11a0027c768 100644
--- a/src/gallium/drivers/lima/ir/pp/lower.c
+++ b/src/gallium/drivers/lima/ir/pp/lower.c
@@ -427,6 +427,20 @@ static bool ppir_lower_neg(ppir_block *block, ppir_node *node)
    return true;
 }
 
+static bool ppir_lower_sat(ppir_block *block, ppir_node *node)
+{
+   /* Turn it into a mov with the saturate output modifier */
+   ppir_alu_node *alu = ppir_node_to_alu(node);
+
+   assert(alu->num_src == 1);
+
+   ppir_dest *move_dest = &alu->dest;
+   move_dest->modifier = ppir_outmod_clamp_fraction;
+   node->op = ppir_op_mov;
+
+   return true;
+}
+
 static bool ppir_lower_branch(ppir_block *block, ppir_node *node)
 {
    ppir_branch_node *branch = ppir_node_to_branch(node);
@@ -480,6 +494,7 @@ static bool (*ppir_lower_funcs[ppir_op_num])(ppir_block *, ppir_node *) = {
    [ppir_op_load_texture] = ppir_lower_texture,
    [ppir_op_select] = ppir_lower_select,
    [ppir_op_trunc] = ppir_lower_trunc,
+   [ppir_op_sat] = ppir_lower_sat,
    [ppir_op_branch] = ppir_lower_branch,
 };
 
diff --git a/src/gallium/drivers/lima/ir/pp/nir.c b/src/gallium/drivers/lima/ir/pp/nir.c
index 4ad85635399..907cb1105d2 100644
--- a/src/gallium/drivers/lima/ir/pp/nir.c
+++ b/src/gallium/drivers/lima/ir/pp/nir.c
@@ -152,6 +152,7 @@ static int nir_to_ppir_opcodes[nir_num_opcodes] = {
    [nir_op_fcsel] = ppir_op_select,
    [nir_op_inot] = ppir_op_not,
    [nir_op_ftrunc] = ppir_op_trunc,
+   [nir_op_fsat] = ppir_op_sat,
 };
 
 static ppir_node *ppir_emit_alu(ppir_block *block, nir_instr *ni)
diff --git a/src/gallium/drivers/lima/ir/pp/node.c b/src/gallium/drivers/lima/ir/pp/node.c
index 425329bb713..5522b875269 100644
--- a/src/gallium/drivers/lima/ir/pp/node.c
+++ b/src/gallium/drivers/lima/ir/pp/node.c
@@ -43,6 +43,9 @@ const ppir_op_info ppir_op_infos[] = {
    [ppir_op_neg] = {
       .name = "neg",
    },
+   [ppir_op_sat] = {
+      .name = "sat",
+   },
    [ppir_op_mul] = {
       .name = "mul",
       .slots = (int []) {
diff --git a/src/gallium/drivers/lima/ir/pp/ppir.h b/src/gallium/drivers/lima/ir/pp/ppir.h
index bf4bb544261..2da4ea35a1d 100644
--- a/src/gallium/drivers/lima/ir/pp/ppir.h
+++ b/src/gallium/drivers/lima/ir/pp/ppir.h
@@ -34,6 +34,7 @@ typedef enum {
    ppir_op_mov,
    ppir_op_abs,
    ppir_op_neg,
+   ppir_op_sat,
    ppir_op_add,
 
    ppir_op_ddx,