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nir: remove unpack_half_flush_to_zero

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It doesn't make sense to have two sets of opcodes for this when all backends
that support the flush_to_zero variant just rely on the global floating point
mode anyway.

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29433>
This commit is contained in:
Georg Lehmann
2024-05-28 16:13:51 +02:00
committed by Marge Bot
parent a1ea0956b4
commit dcab408a6c
8 changed files with 24 additions and 61 deletions
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src/compiler/nir/nir_opcodes.py
+5 -10
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@@ -401,7 +401,6 @@ unpack_2x16("snorm")
unpack_4x8("snorm")
unpack_2x16("unorm")
unpack_4x8("unorm")
unpack_2x16("half")
unop_horiz("pack_uint_2x16", 1, tuint32, 2, tuint32, """
dst.x = _mesa_unsigned_to_unsigned(src0.x, 16);
@@ -452,22 +451,18 @@ unop_horiz("unpack_32_2x16", 2, tuint16, 1, tuint32,
unop_horiz("unpack_32_4x8", 4, tuint8, 1, tuint32,
"dst.x = src0.x; dst.y = src0.x >> 8; dst.z = src0.x >> 16; dst.w = src0.x >> 24;")
unop_horiz("unpack_half_2x16_flush_to_zero", 2, tfloat32, 1, tuint32, """
dst.x = unpack_half_1x16_flush_to_zero((uint16_t)(src0.x & 0xffff));
dst.y = unpack_half_1x16_flush_to_zero((uint16_t)(src0.x << 16));
unop_horiz("unpack_half_2x16", 2, tfloat32, 1, tuint32, """
dst.x = unpack_half_1x16((uint16_t)(src0.x & 0xffff), nir_is_denorm_flush_to_zero(execution_mode, 16));
dst.y = unpack_half_1x16((uint16_t)(src0.x >> 16), nir_is_denorm_flush_to_zero(execution_mode, 16));
""")
# Lowered floating point unpacking operations.
unop_convert("unpack_half_2x16_split_x", tfloat32, tuint32,
"unpack_half_1x16((uint16_t)(src0 & 0xffff))")
"unpack_half_1x16((uint16_t)(src0 & 0xffff), nir_is_denorm_flush_to_zero(execution_mode, 16))")
unop_convert("unpack_half_2x16_split_y", tfloat32, tuint32,
"unpack_half_1x16((uint16_t)(src0 >> 16))")
"unpack_half_1x16((uint16_t)(src0 >> 16), nir_is_denorm_flush_to_zero(execution_mode, 16))")
unop_convert("unpack_half_2x16_split_x_flush_to_zero", tfloat32, tuint32,
"unpack_half_1x16_flush_to_zero((uint16_t)(src0 & 0xffff))")
unop_convert("unpack_half_2x16_split_y_flush_to_zero", tfloat32, tuint32,
"unpack_half_1x16_flush_to_zero((uint16_t)(src0 >> 16))")
unop_convert("unpack_32_2x16_split_x", tuint16, tuint32, "src0")
unop_convert("unpack_32_2x16_split_y", tuint16, tuint32, "src0 >> 16")