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nir/builder: Handle 16-bit floats in nir_imm_floatN_t

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Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Jason Ekstrand
2018-10-22 14:08:44 -05:00
parent ff45649bc2
commit 6e32115bd6
1 changed files with 14 additions and 0 deletions
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14
src/compiler/nir/nir_builder.h
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@@ -25,6 +25,7 @@
#define NIR_BUILDER_H #define NIR_BUILDER_H
#include "nir_control_flow.h" #include "nir_control_flow.h"
#include "util/half_float.h"
struct exec_list; struct exec_list;
@@ -228,6 +229,17 @@ nir_imm_false(nir_builder *build)
return nir_imm_bool(build, false); 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 * static inline nir_ssa_def *
nir_imm_float(nir_builder *build, float x) 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) nir_imm_floatN_t(nir_builder *build, double x, unsigned bit_size)
{ {
switch (bit_size) { switch (bit_size) {
case 16:
return nir_imm_float16(build, x);
case 32: case 32:
return nir_imm_float(build, x); return nir_imm_float(build, x);
case 64: case 64: