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nir: add i2imp and u2ump opcodes for conversions to mediump

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Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5002>
This commit is contained in:
Marek Olšák
2020-05-08 22:05:46 -04:00
committed by Marge Bot
parent f3310cb3e1
commit f798513f91
2 changed files with 21 additions and 6 deletions
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src/compiler/nir/nir_opcodes.py
+6 -3
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@@ -100,6 +100,7 @@ tbool16 = "bool16"
tbool32 = "bool32"
tuint = "uint"
tuint8 = "uint8"
tint16 = "int16"
tuint16 = "uint16"
tfloat16 = "float16"
tfloat32 = "float32"
@@ -267,11 +268,13 @@ for src_t in [tint, tuint, tfloat, tbool]:
dst_bit_size),
dst_t + str(dst_bit_size), src_t, conv_expr)
# Special opcode that is the same as f2f16 except that it is safe to remove it
# if the result is immediately converted back to float32 again. This is
# generated as part of the precision lowering pass. mp stands for medium
# Special opcode that is the same as f2f16, i2i16, u2u16 except that it is safe
# to remove it if the result is immediately converted back to 32 bits again.
# This is generated as part of the precision lowering pass. mp stands for medium
# precision.
unop_numeric_convert("f2fmp", tfloat16, tfloat, opcodes["f2f16"].const_expr)
unop_numeric_convert("i2imp", tint16, tint, opcodes["i2i16"].const_expr)
unop_numeric_convert("u2ump", tuint16, tuint, opcodes["u2u16"].const_expr)
# Unary floating-point rounding operations.