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ir_to_mesa: Add each relative address to the previous

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This fixes many cases of accessing arrays of matrices using
non-constant indices at each level.

Fixes i965 piglit:

    vs-temp-array-mat[234]-index-col-rd
    vs-temp-array-mat[234]-index-col-row-rd
    vs-temp-array-mat[234]-index-col-wr
    vs-uniform-array-mat[234]-index-col-rd

Fixes swrast piglit:

    fs-temp-array-mat[234]-index-col-rd
    fs-temp-array-mat[234]-index-col-row-rd
    fs-temp-array-mat[234]-index-col-wr
    fs-uniform-array-mat[234]-index-col-rd
    fs-uniform-array-mat[234]-index-col-row-rd
    fs-varying-array-mat[234]-index-col-rd
    fs-varying-array-mat[234]-index-col-row-rd
    vs-temp-array-mat[234]-index-col-rd
    vs-temp-array-mat[234]-index-col-row-rd
    vs-temp-array-mat[234]-index-col-wr
    vs-uniform-array-mat[234]-index-col-rd
    vs-uniform-array-mat[234]-index-col-row-rd
    vs-varying-array-mat[234]-index-col-rd
    vs-varying-array-mat[234]-index-col-row-rd
    vs-varying-array-mat[234]-index-col-wr

Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Ian Romanick
2011-07-17 23:15:54 -07:00
parent 601428d2bb
commit d6e1a8f714
1 changed files with 12 additions and 0 deletions
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12
src/mesa/program/ir_to_mesa.cpp
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@@ -1496,6 +1496,18 @@ ir_to_mesa_visitor::visit(ir_dereference_array *ir)
this->result, src_reg_for_float(element_size));
}
/* If there was already a relative address register involved, add the
* new and the old together to get the new offset.
*/
if (src.reladdr != NULL) {
src_reg accum_reg = get_temp(glsl_type::float_type);
emit(ir, OPCODE_ADD, dst_reg(accum_reg),
index_reg, *src.reladdr);
index_reg = accum_reg;
}
src.reladdr = ralloc(mem_ctx, src_reg);
memcpy(src.reladdr, &index_reg, sizeof(index_reg));
}