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spirv: Check that only one offset is defined as Image Operand

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Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Caio Marcelo de Oliveira Filho 2019-10-22 23:40:08 -07:00
parent d27b853c08
commit c7d8fe2f0d
1 changed files with 6 additions and 0 deletions
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6
src/compiler/spirv/spirv_to_nir.c
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@ -2438,6 +2438,12 @@ vtn_handle_texture(struct vtn_builder *b, SpvOp opcode,
(*p++) = vtn_tex_src(b, w[idx++], nir_tex_src_ddy);
}
vtn_fail_if(util_bitcount(operands & (SpvImageOperandsConstOffsetsMask |
SpvImageOperandsOffsetMask |
SpvImageOperandsConstOffsetMask)) > 1,
"At most one of the ConstOffset, Offset, and ConstOffsets "
"image operands can be used on a given instruction.");
if (operands & SpvImageOperandsOffsetMask ||
operands & SpvImageOperandsConstOffsetMask)
(*p++) = vtn_tex_src(b, w[idx++], nir_tex_src_offset);