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nir: fix constant-folding of 64-bit fpow

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We need to do full pow if 64-bit, and we can do fpow() otherwise. Not
the other way around.

Fixes: 9076c4e289 ("nir: update opcode definitions for different bit sizes")
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22774>
(cherry picked from commit 955797d015)
This commit is contained in:
Erik Faye-Lund 2023-04-30 12:15:31 +02:00 • committed by Dylan Baker
parent a6739ce185
commit 2fc6efddd1
2 changed files with 2 additions and 2 deletions
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2
.pick_status.json
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@ -7444,7 +7444,7 @@
"description": "nir: fix constant-folding of 64-bit fpow",
"nominated": true,
"nomination_type": 1,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": "9076c4e289de0debf1fb2a7237bdeb9c11002347",
"notes": null

2
src/compiler/nir/nir_opcodes.py
View file

@ -907,7 +907,7 @@ binop("fmax", tfloat, _2src_commutative + associative, "fmax(src0, src1)")
binop("imax", tint, _2src_commutative + associative, "src1 > src0 ? src1 : src0")
binop("umax", tuint, _2src_commutative + associative, "src1 > src0 ? src1 : src0")
binop("fpow", tfloat, "", "bit_size == 64 ? powf(src0, src1) : pow(src0, src1)")
binop("fpow", tfloat, "", "bit_size == 64 ? pow(src0, src1) : powf(src0, src1)")
binop_horiz("pack_half_2x16_split", 1, tuint32, 1, tfloat32, 1, tfloat32,
"pack_half_1x16(src0.x) | (pack_half_1x16(src1.x) << 16)")