[Mesa-dev] [PATCH 05/31] nir/builder: Handle 16-bit floats in nir_imm_floatN_t
Jason Ekstrand
jason at jlekstrand.net
Mon Oct 22 22:13:36 UTC 2018
---
src/compiler/nir/nir_builder.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/src/compiler/nir/nir_builder.h b/src/compiler/nir/nir_builder.h
index 5ea0a5a2637..3271a480520 100644
--- a/src/compiler/nir/nir_builder.h
+++ b/src/compiler/nir/nir_builder.h
@@ -25,6 +25,7 @@
#define NIR_BUILDER_H
#include "nir_control_flow.h"
+#include "util/half_float.h"
struct exec_list;
@@ -228,6 +229,17 @@ nir_imm_false(nir_builder *build)
return nir_imm_bool(build, false);
}
+static inline nir_ssa_def *
+nir_imm_float16(nir_builder *build, float x)
+{
+ nir_const_value v;
+
+ memset(&v, 0, sizeof(v));
+ v.u16[0] = _mesa_float_to_half(x);
+
+ return nir_build_imm(build, 1, 16, v);
+}
+
static inline nir_ssa_def *
nir_imm_float(nir_builder *build, float x)
{
@@ -254,6 +266,8 @@ static inline nir_ssa_def *
nir_imm_floatN_t(nir_builder *build, double x, unsigned bit_size)
{
switch (bit_size) {
+ case 16:
+ return nir_imm_float16(build, x);
case 32:
return nir_imm_float(build, x);
case 64:
--
2.19.1
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