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glsl/opt_minmax: Add support for float16

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Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>
This commit is contained in:
Neil Roberts 2019-06-07 08:52:14 +02:00 • committed by Marge Bot
parent e3cc81e86c
commit 83e20139db
1 changed files with 19 additions and 0 deletions
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19
src/compiler/glsl/opt_minmax.cpp
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@ -38,6 +38,7 @@
#include "program/prog_instruction.h"
#include "compiler/glsl_types.h"
#include "main/macros.h"
#include "util/half_float.h"
using namespace ir_builder;
@ -125,6 +126,17 @@ compare_components(ir_constant *a, ir_constant *b)
else
foundequal = true;
break;
case GLSL_TYPE_FLOAT16: {
float af = _mesa_half_to_float(a->value.f16[c0]);
float bf = _mesa_half_to_float(b->value.f16[c1]);
if (af < bf)
foundless = true;
else if (af > bf)
foundgreater = true;
else
foundequal = true;
break;
}
case GLSL_TYPE_FLOAT:
if (a->value.f[c0] < b->value.f[c1])
foundless = true;
@ -181,6 +193,13 @@ combine_constant(bool ismin, ir_constant *a, ir_constant *b)
(!ismin && b->value.i[i] > c->value.i[i]))
c->value.i[i] = b->value.i[i];
break;
case GLSL_TYPE_FLOAT16: {
float bf = _mesa_half_to_float(b->value.f16[i]);
float cf = _mesa_half_to_float(c->value.f16[i]);
if ((ismin && bf < cf) || (!ismin && bf > cf))
c->value.f16[i] = b->value.f16[i];
break;
}
case GLSL_TYPE_FLOAT:
if ((ismin && b->value.f[i] < c->value.f[i]) ||
(!ismin && b->value.f[i] > c->value.f[i]))