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v3d: re-enable GLSL loop unrolling

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Disabling it that made us start to fail register allocation for a
few tests. Re-enable it until we figure out what is causing that.

Fixes: ca9e0871fb ('v3d: enable NIR loop unrolling')

Reviewed-by: Juan A. Suarez <jasuarez@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10684>
This commit is contained in:
Iago Toral Quiroga 2021-05-07 12:32:40 +02:00 • committed by Marge Bot
parent c80877b535
commit e5fc2064fc
1 changed files with 9 additions and 2 deletions
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11
src/gallium/drivers/v3d/v3d_screen.c
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@ -423,8 +423,15 @@ v3d_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
case PIPE_SHADER_CAP_SUPPORTED_IRS:
return 1 << PIPE_SHADER_IR_NIR;
case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
/* Disable GLSL loop unrolling, we'll use NIR's */
return 0;
/* FIXME: if we disable GLSL loop unrolling in favor of NIR's
* we fail to register allocate some tests, like:
* - KHR-GLES31.core.geometry_shader.limits.max_input_components
* - bin/max-samplers border -auto -fbo
*
* So keep it enabled until we figure out what's going on with
* that.
*/
return 32;
case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
return 0;