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nir: rename nir_op_fne to nir_op_fneu

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It was always fneu but naming it fne causes confusion from time to time. So
lets rename it. Later we also want to add other unordered and fne, this is
a smaller preparation for that.

Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6377>
This commit is contained in:
Karol Herbst
2020-08-18 19:51:57 +02:00
committed by Marge Bot
parent 85b7403909
commit e5899c1e88
37 changed files with 103 additions and 103 deletions
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10
src/compiler/glsl/float64.glsl
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@@ -155,7 +155,7 @@ __feq64(uint64_t a, uint64_t b)
* performed according to the IEEE Standard for Floating-Point Arithmetic.
*/
bool
__fne64(uint64_t a, uint64_t b)
__fneu64(uint64_t a, uint64_t b)
{
if (__is_nan(a) || __is_nan(b))
return true;
@@ -206,16 +206,16 @@ __flt64_nonnan(uint64_t __a, uint64_t __b)
*
* This is equivalent to
*
* fne(a, b) && (both_negative(a, b) ? a >= b : a < b)
* fneu(a, b) && (both_negative(a, b) ? a >= b : a < b)
*
* fne(a, b) && (both_negative(a, b) ? !(a < b) : a < b)
* fneu(a, b) && (both_negative(a, b) ? !(a < b) : a < b)
*
* fne(a, b) && ((both_negative(a, b) && !(a < b)) ||
* fneu(a, b) && ((both_negative(a, b) && !(a < b)) ||
* (!both_negative(a, b) && (a < b)))
*
* (A!|B)&(A|!B) is (A xor B) which is implemented here using !=.
*
* fne(a, b) && (both_negative(a, b) != (a < b))
* fneu(a, b) && (both_negative(a, b) != (a < b))
*/
bool lt = ilt64(a.y, a.x, b.y, b.x);
bool both_negative = (a.y & b.y & 0x80000000u) != 0;