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radeonsi/nir: set colors_read properly 

shader-db results for VEGA64:

Totals from affected shaders:
SGPRS: 1976 -> 1976 (0.00 %)
VGPRS: 1240 -> 1144 (-7.74 %)
Spilled SGPRs: 145 -> 145 (0.00 %)
Spilled VGPRs: 0 -> 0 (0.00 %)
Private memory VGPRs: 0 -> 0 (0.00 %)
Scratch size: 0 -> 0 (0.00 %) dwords per thread
Code Size: 34632 -> 34604 (-0.08 %) bytes
LDS: 0 -> 0 (0.00 %) blocks
Max Waves: 261 -> 285 (9.20 %)
Wait states: 0 -> 0 (0.00 %)

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Timothy Arceri 2019-02-12 10:36:35 +11:00
parent 05cc1dd764
commit 94a3df62d7
1 changed files with 10 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/gallium/drivers/radeonsi/si_shader_nir.c
View File

@ -74,9 +74,18 @@ static void gather_intrinsic_load_deref_info(const nir_shader *nir,
}
break;
}
default:
default: {
unsigned semantic_name, semantic_index;
tgsi_get_gl_varying_semantic(var->data.location, true,
&semantic_name, &semantic_index);
if (semantic_name == TGSI_SEMANTIC_COLOR) {
uint8_t mask = nir_ssa_def_components_read(&instr->dest.ssa);
info->colors_read |= mask << (semantic_index * 4);
}
break;
}
}
}
static void scan_instruction(const struct nir_shader *nir,
@ -495,12 +504,6 @@ void si_nir_scan_shader(const struct nir_shader *nir,
info->input_interpolate[i] = TGSI_INTERPOLATE_CONSTANT;
break;
}
/* TODO make this more precise */
if (variable->data.location == VARYING_SLOT_COL0)
info->colors_read |= 0x0f;
else if (variable->data.location == VARYING_SLOT_COL1)
info->colors_read |= 0xf0;
}
}