-#! /usr/bin/env python
#
# Copyright (C) 2014 Connor Abbott
#
tfloat32 = "float32"
tint32 = "int32"
tuint32 = "uint32"
+tint64 = "int64"
tuint64 = "uint64"
tfloat64 = "float64"
unop("ineg", tint, "-src0")
unop("fneg", tfloat, "-src0")
unop("inot", tint, "~src0") # invert every bit of the integer
-unop("fnot", tfloat, "(src0 == 0.0f) ? 1.0f : 0.0f")
-unop("fsign", tfloat, "(src0 == 0.0f) ? 0.0f : ((src0 > 0.0f) ? 1.0f : -1.0f)")
+unop("fnot", tfloat, ("bit_size == 64 ? ((src0 == 0.0) ? 1.0 : 0.0f) : " +
+ "((src0 == 0.0f) ? 1.0f : 0.0f)"))
+unop("fsign", tfloat, ("bit_size == 64 ? " +
+ "((src0 == 0.0) ? 0.0 : ((src0 > 0.0) ? 1.0 : -1.0)) : " +
+ "((src0 == 0.0f) ? 0.0f : ((src0 > 0.0f) ? 1.0f : -1.0f))"))
unop("isign", tint, "(src0 == 0) ? 0 : ((src0 > 0) ? 1 : -1)")
unop("iabs", tint, "(src0 < 0) ? -src0 : src0")
-unop("fabs", tfloat, "bit_size == 64 ? fabs(src0) : fabsf(src0)")
-unop("fsat", tfloat, "(src0 > 1.0f) ? 1.0f : ((src0 <= 0.0f) ? 0.0f : src0)")
-unop("frcp", tfloat, "1.0f / src0")
+unop("fabs", tfloat, "fabs(src0)")
+unop("fsat", tfloat, ("bit_size == 64 ? " +
+ "((src0 > 1.0) ? 1.0 : ((src0 <= 0.0) ? 0.0 : src0)) : " +
+ "((src0 > 1.0f) ? 1.0f : ((src0 <= 0.0f) ? 0.0f : src0))"))
+unop("frcp", tfloat, "bit_size == 64 ? 1.0 / src0 : 1.0f / src0")
unop("frsq", tfloat, "bit_size == 64 ? 1.0 / sqrt(src0) : 1.0f / sqrtf(src0)")
unop("fsqrt", tfloat, "bit_size == 64 ? sqrt(src0) : sqrtf(src0)")
unop("fexp2", tfloat, "exp2f(src0)")
unop("flog2", tfloat, "log2f(src0)")
-unop_convert("f2i", tint32, tfloat32, "src0") # Float-to-integer conversion.
-unop_convert("f2u", tuint32, tfloat32, "src0") # Float-to-unsigned conversion
-unop_convert("d2i", tint32, tfloat64, "src0") # Double-to-integer conversion.
-unop_convert("d2u", tuint32, tfloat64, "src0") # Double-to-unsigned conversion.
-unop_convert("i2f", tfloat32, tint32, "src0") # Integer-to-float conversion.
-unop_convert("i2d", tfloat64, tint32, "src0") # Integer-to-double conversion.
-# Float-to-boolean conversion
-unop_convert("f2b", tbool, tfloat32, "src0 != 0.0f")
-unop_convert("d2b", tbool, tfloat64, "src0 != 0.0")
-# Boolean-to-float conversion
-unop_convert("b2f", tfloat32, tbool, "src0 ? 1.0f : 0.0f")
-# Int-to-boolean conversion
-unop_convert("i2b", tbool, tint32, "src0 != 0")
-unop_convert("b2i", tint32, tbool, "src0 ? 1 : 0") # Boolean-to-int conversion
-unop_convert("u2f", tfloat32, tuint32, "src0") # Unsigned-to-float conversion.
-unop_convert("u2d", tfloat64, tuint32, "src0") # Unsigned-to-double conversion.
-# double-to-float conversion
-unop_convert("d2f", tfloat32, tfloat64, "src0") # Double to single precision
-unop_convert("f2d", tfloat64, tfloat32, "src0") # Single to double precision
+
+# Generate all of the numeric conversion opcodes
+for src_t in [tint, tuint, tfloat]:
+ if src_t in (tint, tuint):
+ dst_types = [tfloat, src_t]
+ elif src_t == tfloat:
+ dst_types = [tint, tuint, tfloat]
+
+ for dst_t in dst_types:
+ if dst_t == tfloat:
+ bit_sizes = [16, 32, 64]
+ else:
+ bit_sizes = [8, 16, 32, 64]
+ for bit_size in bit_sizes:
+ unop_convert("{0}2{1}{2}".format(src_t[0], dst_t[0], bit_size),
+ dst_t + str(bit_size), src_t, "src0")
+
+# We'll hand-code the to/from bool conversion opcodes. Because bool doesn't
+# have multiple bit-sizes, we can always infer the size from the other type.
+unop_convert("f2b", tbool, tfloat, "src0 != 0.0")
+unop_convert("i2b", tbool, tint, "src0 != 0")
+unop_convert("b2f", tfloat, tbool, "src0 ? 1.0 : 0.0")
+unop_convert("b2i", tint, tbool, "src0 ? 1 : 0")
+
# Unary floating-point rounding operations.
unpack_2x16("half")
unop_horiz("pack_uvec2_to_uint", 1, tuint32, 2, tuint32, """
-dst.x = (src0.x & 0xffff) | (src0.y >> 16);
+dst.x = (src0.x & 0xffff) | (src0.y << 16);
""")
unop_horiz("pack_uvec4_to_uint", 1, tuint32, 4, tuint32, """
(src0.w << 24);
""")
-unop_horiz("pack_double_2x32", 1, tuint64, 2, tuint32,
+unop_horiz("pack_64_2x32", 1, tuint64, 2, tuint32,
"dst.x = src0.x | ((uint64_t)src0.y << 32);")
-unop_horiz("unpack_double_2x32", 2, tuint32, 1, tuint64,
+unop_horiz("unpack_64_2x32", 2, tuint32, 1, tuint64,
"dst.x = src0.x; dst.y = src0.x >> 32;")
# Lowered floating point unpacking operations.
unop_horiz("unpack_half_2x16_split_y", 1, tfloat32, 1, tuint32,
"unpack_half_1x16((uint16_t)(src0.x >> 16))")
-unop_convert("unpack_double_2x32_split_x", tuint32, tuint64, "src0")
-unop_convert("unpack_double_2x32_split_y", tuint32, tuint64, "src0 >> 32")
+unop_convert("unpack_64_2x32_split_x", tuint32, tuint64, "src0")
+unop_convert("unpack_64_2x32_split_y", tuint32, tuint64, "src0 >> 32")
# Bit operations, part of ARB_gpu_shader5.
unop_convert("ufind_msb", tint32, tuint32, """
dst = -1;
-for (int bit = 31; bit > 0; bit--) {
+for (int bit = 31; bit >= 0; bit--) {
if ((src0 >> bit) & 1) {
dst = bit;
break;
# and false respectively
binop("slt", tfloat32, "", "(src0 < src1) ? 1.0f : 0.0f") # Set on Less Than
-binop("sge", tfloat32, "", "(src0 >= src1) ? 1.0f : 0.0f") # Set on Greater or Equal
+binop("sge", tfloat, "", "(src0 >= src1) ? 1.0f : 0.0f") # Set on Greater or Equal
binop("seq", tfloat32, commutative, "(src0 == src1) ? 1.0f : 0.0f") # Set on Equal
binop("sne", tfloat32, commutative, "(src0 != src1) ? 1.0f : 0.0f") # Set on Not Equal
-binop("ishl", tint, "", "src0 << src1")
-binop("ishr", tint, "", "src0 >> src1")
-binop("ushr", tuint, "", "src0 >> src1")
+opcode("ishl", 0, tint, [0, 0], [tint, tuint32], "", "src0 << src1")
+opcode("ishr", 0, tint, [0, 0], [tint, tuint32], "", "src0 >> src1")
+opcode("ushr", 0, tuint, [0, 0], [tuint, tuint32], "", "src0 >> src1")
# bitwise logic operators
#
binop_horiz("pack_half_2x16_split", 1, tuint32, 1, tfloat32, 1, tfloat32,
"pack_half_1x16(src0.x) | (pack_half_1x16(src1.x) << 16)")
-binop_convert("pack_double_2x32_split", tuint64, tuint32, "",
+binop_convert("pack_64_2x32_split", tuint64, tuint32, "",
"src0 | ((uint64_t)src1 << 32)")
# bfm implements the behavior of the first operation of the SM5 "bfi" assembly