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-rw-r--r--src/compiler/nir/nir_constant_expressions.py1
-rw-r--r--src/compiler/nir/nir_opcodes.py10
2 files changed, 11 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_constant_expressions.py b/src/compiler/nir/nir_constant_expressions.py
index 1df97aa1000..219d91c1cbd 100644
--- a/src/compiler/nir/nir_constant_expressions.py
+++ b/src/compiler/nir/nir_constant_expressions.py
@@ -63,6 +63,7 @@ template = """\
#include <math.h>
#include "util/rounding.h" /* for _mesa_roundeven */
#include "util/half_float.h"
+#include "util/double.h"
#include "util/bigmath.h"
#include "nir_constant_expressions.h"
diff --git a/src/compiler/nir/nir_opcodes.py b/src/compiler/nir/nir_opcodes.py
index 3020da98264..13f64d78c4f 100644
--- a/src/compiler/nir/nir_opcodes.py
+++ b/src/compiler/nir/nir_opcodes.py
@@ -224,6 +224,16 @@ for src_t in [tint, tuint, tfloat, tbool]:
unop_numeric_convert("{0}2{1}{2}{3}".format(src_t[0], dst_t[0],
bit_size, rnd_mode),
dst_t + str(bit_size), src_t, "src0")
+ elif bit_size == 32 and dst_t == tfloat and src_t == tfloat:
+ conv_expr = """
+ if (bit_size > 32 && nir_is_rounding_mode_rtz(execution_mode, 32)) {
+ dst = _mesa_double_to_float_rtz(src0);
+ } else {
+ dst = src0;
+ }
+ """
+ unop_numeric_convert("{0}2{1}{2}".format(src_t[0], dst_t[0], bit_size),
+ dst_t + str(bit_size), src_t, conv_expr)
else:
conv_expr = "src0 != 0" if dst_t == tbool else "src0"
unop_numeric_convert("{0}2{1}{2}".format(src_t[0], dst_t[0], bit_size),