freedreno/ir3: Fix sizing of the inputs/outputs array.
If you have a struct, the var's base driver location is not the last driver location that will be accessed in that var. We have a shader struct member with this number for us, already. Fixes overflows in: dEQP-GLES31.functional.program_interface_query.program_output.type.interface_blocks.out.named_block_explicit_location.struct.mat3x2 Reviewed-by: Connor Abbott <cwabbott0@gmail.com> Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4670>
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@ -3236,24 +3236,13 @@ setup_output(struct ir3_context *ctx, nir_variable *out)
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}
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}
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static int
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max_drvloc(struct exec_list *vars)
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{
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int drvloc = -1;
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nir_foreach_variable (var, vars) {
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drvloc = MAX2(drvloc, (int)var->data.driver_location);
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}
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return drvloc;
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}
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static void
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emit_instructions(struct ir3_context *ctx)
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{
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nir_function_impl *fxn = nir_shader_get_entrypoint(ctx->s);
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ctx->ninputs = (max_drvloc(&ctx->s->inputs) + 1) * 4;
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ctx->noutputs = (max_drvloc(&ctx->s->outputs) + 1) * 4;
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ctx->ninputs = ctx->s->num_inputs * 4;
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ctx->noutputs = ctx->s->num_outputs * 4;
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ctx->inputs = rzalloc_array(ctx, struct ir3_instruction *, ctx->ninputs);
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ctx->outputs = rzalloc_array(ctx, struct ir3_instruction *, ctx->noutputs);
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