On Wed, 2016-09-07 at 18:48 -0700, Francisco Jerez wrote: > This series reworks the representation of register region offsets in > the i965 IR to be universally byte-based instead of the rather > awkward > split between reg_offset and subreg_offset we have in the FS back-end > right now, or the reg_offset field currently used in the VEC4 IR > which > doesn't allow better granularity than 32B. The most immediate > motivation is to enable sub-GRF offsets in the VEC4 back-end, which > will be useful for various kinds of lowering and instruction > splitting > required for FP64 support on VEC4 platforms. > > Patches 01-11 take care of scaling the regs_written and regs_read > instruction methods on both back-ends and the reg_offset register > field of VEC4 IR registers. The fs_reg::reg_offset and > ::subreg_offset fields are also unified into a single register field. > Because this part of the series is rather bulky I've tried to keep > the > changes as obvious and functionally equivalent as possible at the > cost > of introducing not particularly clever code in some cases that could > be simplified with some knowledge of the context. Patches 31-46 make > a second pass through the code touched in the first part of the > series > in order to get rid of an amount of cruft. > > Patches 12-30 address an amount of bugs that became obvious during > the > conversion to byte units, some of them seem worrying enough that it > might make sense to back-port them to stable releases. > > Patches 47-57 go through the VEC4 back-end and address a number of > issues that would arise in existing optimization passes with > non-GRF-aligned regions, which will be useful for FP64 support. It's > likely not complete and the handling of sub-GRF offsets doesn't > attempt to be nearly as clever as the FS back-end, but they should > make a substantial improvement over the current situation.
Patches 47-57 are: Reviewed-by: Iago Toral Quiroga <ito...@igalia.com> I think that covers the entire series. I'll start porting the fp64 implementation to the new framework and see how things go, thanks again for doing this Curro. > [PATCH 01/57] i965/fs: Replace fs_reg::reg_offset with fs_reg::offset > expressed in bytes. > [PATCH 02/57] i965/vec4: Replace dst/src_reg::reg_offset with > dst/src_reg::offset expressed in bytes. > [PATCH 03/57] i965/ir: Remove backend_reg::reg_offset. > [PATCH 04/57] i965/fs: Replace fs_reg::subreg_offset with > fs_reg::offset expressed in bytes. > [PATCH 05/57] i965/fs: Add wrapper functions for fs_inst::regs_read > and ::regs_written. > [PATCH 06/57] i965/vec4: Add wrapper functions for > vec4_instruction::regs_read and ::regs_written. > [PATCH 07/57] i965/fs: Replace fs_inst::regs_written with > ::size_written field in bytes. > [PATCH 08/57] i965/vec4: Replace vec4_instruction::regs_written with > ::size_written field in bytes. > [PATCH 09/57] i965/ir: Drop backend_instruction::regs_written field. > [PATCH 10/57] i965/fs: Replace fs_inst::regs_read with ::size_read > using byte units. > [PATCH 11/57] i965/vec4: Replace vec4_instruction::regs_read with > ::size_read using byte units. > [PATCH 12/57] i965/fs: Return more accurate read size from > fs_inst::size_read for IMM and UNIFORM files. > [PATCH 13/57] i965/fs: Return more accurate read size for LINTERP > from fs_inst::size_read. > [PATCH 14/57] i965/fs: Handle arbitrary offsets in > brw_reg_from_fs_reg for MRF/VGRF registers. > [PATCH 15/57] i965/fs: Handle fixed HW GRF subnr in reg_offset(). > [PATCH 16/57] i965/fs: Take into account trailing padding in > regs_written() and regs_read(). > [PATCH 17/57] i965/fs: Take into account misalignment in > regs_written() and regs_read(). > [PATCH 18/57] i965/vec4: Take into account misalignment in > regs_written() and regs_read(). > [PATCH 19/57] i965/fs: Don't consider LOAD_PAYLOAD with sub-GRF > offset to behave like a raw copy. > [PATCH 20/57] i965/fs: Don't consider LOAD_PAYLOAD with stride > 1 > source to behave like a raw copy. > [PATCH 21/57] i965/fs: Compare full register offsets in cmod > propagation pass. > [PATCH 22/57] i965/fs: Fix can_propagate_from() source/destination > overlap check. > [PATCH 23/57] i965/fs: Fix LOAD_PAYLOAD handling in register coalesce > is_nop_mov(). > [PATCH 24/57] i965/fs: Drop fs_inst::overwrites_reg() in favor of > regions_overlap(). > [PATCH 25/57] i965/fs: Stop using fs_reg::in_range() in favor of > regions_overlap(). > [PATCH 26/57] i965/vec4: Port regions_overlap() to the vec4 IR. > [PATCH 27/57] i965/vec4: Drop backend_reg::in_range() in favor of > regions_overlap(). > [PATCH 28/57] i965/fs: Take into account copy register offset during > compute-to-mrf. > [PATCH 29/57] i965/fs: Fix bogus sub-MRF offset calculation in > compute-to-mrf. > [PATCH 30/57] i965/fs: Switch mask_relative_to() used in compute-to- > mrf to byte units. > [PATCH 31/57] i965/fs: Fix signedness of the return value of > fs_inst::size_read(). > [PATCH 32/57] i965/fs: Simplify byte_offset(). > [PATCH 33/57] i965/fs: Simplify get_fpu_lowered_simd_width() by using > inequalities instead of rounding. > [PATCH 34/57] i965/fs: Simplify and fix buggy stride/offset > calculations using subscript(). > [PATCH 35/57] i965/fs: Simplify result_live calculation in > dead_code_eliminate(). > [PATCH 36/57] i965/fs: Simplify a bunch of fs_inst::size_written > calculations by using component_size(). > [PATCH 37/57] i965/fs: Simplify copy propagation LOAD_PAYLOAD ACP > setup. > [PATCH 38/57] i965/fs: Change region_contained_in() to use byte > units. > [PATCH 39/57] i965/fs: Move region_contained_in to the IR header and > fix for non-VGRF files. > [PATCH 40/57] i965/fs: Use region_contained_in() in compute-to-mrf > coalescing pass. > [PATCH 41/57] i965/fs: Get rid of fs_inst::set_smear(). > [PATCH 42/57] i965/fs: Misc simplification. > [PATCH 43/57] i965/fs: Print fs_reg::offset field consistently for > all register files. > [PATCH 44/57] i965/vec4: Print src/dst_reg::offset field consistently > for all register files. > [PATCH 45/57] i965/ir: Don't print ARF subnr values twice. > [PATCH 46/57] i965/ir: Update several stale comments. > [PATCH 47/57] i965/vec4: Simplify src/dst_reg to brw_reg conversion > by using byte_offset(). > [PATCH 48/57] i965/vec4: Change opt_vector_float to keep track of the > last offset seen in bytes. > [PATCH 49/57] i965/vec4: Check that the write offsets match when > setting dependency controls. > [PATCH 50/57] i965/vec4: Compare full register offsets in > opt_register_coalesce nop move check. > [PATCH 51/57] i965/vec4: Don't coalesce registers with overlapping > writes not matching the MOV source. > [PATCH 52/57] i965/vec4: Assign correct destination offset to > rewritten instruction in register coalesce. > [PATCH 53/57] i965/vec4: Compare full register offsets in cmod > propagation. > [PATCH 54/57] i965/vec4: Fix copy propagation for non-register- > aligned regions. > [PATCH 55/57] i965/vec4: Don't spill non-GRF-aligned register > regions. > [PATCH 56/57] i965/vec4: Assert that ATTR regions are register- > aligned. > [PATCH 57/57] i965/vec4: Assert that pull constant load offsets are > 16B-aligned. > _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
