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

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Module: Mesa
Branch: master
Commit: f1d89bbc2fdb9952471e8e726453526fcf68d835
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=f1d89bbc2fdb9952471e8e726453526fcf68d835

Author: Andreas Baierl <ichgeh at imkreisrum.de>
Date:   Fri Jun 21 10:54:04 2019 +0200

lima/ppir: Add fneg 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 | 14 ++++++++++++++
 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, 19 insertions(+)

diff --git a/src/gallium/drivers/lima/ir/pp/lower.c b/src/gallium/drivers/lima/ir/pp/lower.c
index db62988078d..2e87754d893 100644
--- a/src/gallium/drivers/lima/ir/pp/lower.c
+++ b/src/gallium/drivers/lima/ir/pp/lower.c
@@ -414,6 +414,19 @@ static bool ppir_lower_abs(ppir_block *block, ppir_node *node)
    return true;
 }
 
+static bool ppir_lower_neg(ppir_block *block, ppir_node *node)
+{
+   /* Turn it into a mov and set the negate modifier */
+   ppir_alu_node *alu = ppir_node_to_alu(node);
+
+   assert(alu->num_src == 1);
+
+   alu->src[0].negate = !alu->src[0].negate;
+   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);
@@ -450,6 +463,7 @@ static bool ppir_lower_branch(ppir_block *block, ppir_node *node)
 
 static bool (*ppir_lower_funcs[ppir_op_num])(ppir_block *, ppir_node *) = {
    [ppir_op_abs] = ppir_lower_abs,
+   [ppir_op_neg] = ppir_lower_neg,
    [ppir_op_const] = ppir_lower_const,
    [ppir_op_dot2] = ppir_lower_dot,
    [ppir_op_dot3] = ppir_lower_dot,
diff --git a/src/gallium/drivers/lima/ir/pp/nir.c b/src/gallium/drivers/lima/ir/pp/nir.c
index 18c6eb347f4..4ad85635399 100644
--- a/src/gallium/drivers/lima/ir/pp/nir.c
+++ b/src/gallium/drivers/lima/ir/pp/nir.c
@@ -120,6 +120,7 @@ static int nir_to_ppir_opcodes[nir_num_opcodes] = {
    [nir_op_mov] = ppir_op_mov,
    [nir_op_fmul] = ppir_op_mul,
    [nir_op_fabs] = ppir_op_abs,
+   [nir_op_fneg] = ppir_op_neg,
    [nir_op_fadd] = ppir_op_add,
    [nir_op_fdot2] = ppir_op_dot2,
    [nir_op_fdot3] = ppir_op_dot3,
diff --git a/src/gallium/drivers/lima/ir/pp/node.c b/src/gallium/drivers/lima/ir/pp/node.c
index a1a7f819f1b..425329bb713 100644
--- a/src/gallium/drivers/lima/ir/pp/node.c
+++ b/src/gallium/drivers/lima/ir/pp/node.c
@@ -40,6 +40,9 @@ const ppir_op_info ppir_op_infos[] = {
    [ppir_op_abs] = {
       .name = "abs",
    },
+   [ppir_op_neg] = {
+      .name = "neg",
+   },
    [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 cc3a37e8ade..bf4bb544261 100644
--- a/src/gallium/drivers/lima/ir/pp/ppir.h
+++ b/src/gallium/drivers/lima/ir/pp/ppir.h
@@ -33,6 +33,7 @@
 typedef enum {
    ppir_op_mov,
    ppir_op_abs,
+   ppir_op_neg,
    ppir_op_add,
 
    ppir_op_ddx,