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90c18ec8db
brw_reg::subnr is in bytes, like the subnr field in the instruction word, but we disassemble the subregister number in units of the type. For example g0.3<1>F would have a subnr=12. These non-terminals produce a brw_reg and feed into other non-terminals that call brw_reg(), where they are passed the subnr that we set here. brw_reg()'s subnr parameter is expected to be in terms of the register type, and it is multiplied by the type size to calculate the subnr in bytes. In these non-terminals, we don't know the register type yet, so we must store the subregister number as it was given to us in the .subnr field and let the brw_reg() constructor handle the conversion to the canonical byte-based subnr form when it knows the type. Before this patch, subregister numbers applied to these registers would be multiplied with the type size twice. Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5956> |
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