35 lines
1.3 KiB
Diff
35 lines
1.3 KiB
Diff
From d3ec950f0d8492b980a91844ffd744d7e7824277 Mon Sep 17 00:00:00 2001
|
|
From: Ben Skeggs <bskeggs@redhat.com>
|
|
Date: Sat, 6 Jun 2020 16:58:00 +1000
|
|
Subject: [PATCH] nir: use bitfield_insert instead of bfi in
|
|
nir_lower_double_ops
|
|
|
|
NVIDIA hardware doesn't have an equivilant to bfi, but we do already have
|
|
a lowering for bitfield_insert->bfi.
|
|
|
|
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
|
|
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
|
|
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5373>
|
|
---
|
|
src/compiler/nir/nir_lower_double_ops.c | 4 +++-
|
|
1 file changed, 3 insertions(+), 1 deletion(-)
|
|
|
|
diff --git a/src/compiler/nir/nir_lower_double_ops.c b/src/compiler/nir/nir_lower_double_ops.c
|
|
index f9c93a910a5..73226fd62ef 100644
|
|
--- a/src/compiler/nir/nir_lower_double_ops.c
|
|
+++ b/src/compiler/nir/nir_lower_double_ops.c
|
|
@@ -49,7 +49,9 @@ set_exponent(nir_builder *b, nir_ssa_def *src, nir_ssa_def *exp)
|
|
/* The exponent is bits 52-62, or 20-30 of the high word, so set the exponent
|
|
* to 1023
|
|
*/
|
|
- nir_ssa_def *new_hi = nir_bfi(b, nir_imm_int(b, 0x7ff00000), exp, hi);
|
|
+ nir_ssa_def *new_hi = nir_bitfield_insert(b, hi, exp,
|
|
+ nir_imm_int(b, 20),
|
|
+ nir_imm_int(b, 11));
|
|
/* recombine */
|
|
return nir_pack_64_2x32_split(b, lo, new_hi);
|
|
}
|
|
--
|
|
2.26.2
|
|
|