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compiler/spirv: use undefs when extending image coords

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we need 4 components for the nir ops, but swizzling one value to multiple
channels like this gets confusing when trying to debug image ops that don't
require 4 channels

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9723>
This commit is contained in:
Mike Blumenkrantz
2021-03-19 18:48:53 -04:00
committed by Marge Bot
parent 52e7297f9c
commit 674132dee8
1 changed files with 17 additions and 17 deletions
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34
src/compiler/spirv/spirv_to_nir.c
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@@ -3055,29 +3055,29 @@ fill_common_atomic_sources(struct vtn_builder *b, SpvOp opcode,
} }
} }
static nir_ssa_def *
get_image_coord(struct vtn_builder *b, uint32_t value)
{
nir_ssa_def *coord = vtn_get_nir_ssa(b, value);
/* The image_load_store intrinsics assume a 4-dim coordinate */
unsigned swizzle[4];
for (unsigned i = 0; i < 4; i++)
swizzle[i] = MIN2(i, coord->num_components - 1);
return nir_swizzle(&b->nb, coord, swizzle, 4);
}
static nir_ssa_def * static nir_ssa_def *
expand_to_vec4(nir_builder *b, nir_ssa_def *value) expand_to_vec4(nir_builder *b, nir_ssa_def *value)
{ {
nir_ssa_def *components[4];
if (value->num_components == 4) if (value->num_components == 4)
return value; return value;
unsigned swiz[4]; nir_ssa_def *undef = nir_ssa_undef(b, 1, value->bit_size);
for (unsigned i = 0; i < 4; i++) for (unsigned i = 0; i < 4; i++) {
swiz[i] = i < value->num_components ? i : 0; if (i < value->num_components)
return nir_swizzle(b, value, swiz, 4); components[i] = nir_channel(b, value, i);
else
components[i] = undef;
}
return nir_vec(b, components, 4);
}
static nir_ssa_def *
get_image_coord(struct vtn_builder *b, uint32_t value)
{
nir_ssa_def *coord = vtn_get_nir_ssa(b, value);
/* The image_load_store intrinsics assume a 4-dim coordinate */
return expand_to_vec4(&b->nb, coord);
} }
static void static void