KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

nir: don't emit ishl in _nir_mul_imm() if backend doesn't support bitops 

Otherwise we'll have to lower it later.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Erico Nunes <nunes.erico@gmail.com>
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3529>
This commit is contained in:
Vasily Khoruzhick 2020-01-22 20:29:50 -08:00 committed by Marge Bot
parent cf2c5a56a1
commit 3c754900b5
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/compiler/nir/nir_builder.h
View File

@ -656,7 +656,8 @@ _nir_mul_imm(nir_builder *build, nir_ssa_def *x, uint64_t y, bool amul)
return nir_imm_intN_t(build, 0, x->bit_size);
} else if (y == 1) {
return x;
} else if (util_is_power_of_two_or_zero64(y)) {
} else if (!build->shader->options->lower_bitops &&
util_is_power_of_two_or_zero64(y)) {
return nir_ishl(build, x, nir_imm_int(build, ffsll(y) - 1));
} else if (amul) {
return nir_amul(build, x, nir_imm_intN_t(build, y, x->bit_size));