nir: Add a fquantize2f16 opcode

This opcode simply takes a 32-bit floating-point value and reduces its
effective precision to 16 bits.

diff --git a/src/glsl/nir/nir_opcodes.py b/src/glsl/nir/nir_opcodes.py
index d31507fe53166fcca47e56ff97f5bf6dc9fbd21d..9dbb341d91cd4625647c87dd74bf335de4b64374 100644 (file)
--- a/src/glsl/nir/nir_opcodes.py
+++ b/src/glsl/nir/nir_opcodes.py
@@ -176,6 +176,7 @@ unop("ffloor", tfloat, "floorf(src0)")
 unop("ffract", tfloat, "src0 - floorf(src0)")
 unop("fround_even", tfloat, "_mesa_roundevenf(src0)")
 
+unop("fquantize2f16", tfloat, "_mesa_half_to_float(_mesa_float_to_half(src0))")
 
 # Trigonometric operations.