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mesa/src/panfrost/compiler
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Eric R. Smith 65bcae096a panfrost: fix SSA register allocation 
We were allocating a fixed number of temporary registers; this isn't
always enough, and in fact we should have calculated the number of
temporaries required.

Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Fixes: 6c64ad934f ("panfrost: spill registers in SSA form")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36135>
2025-07-16 12:16:50 +00:00
..
bifrost pan/va: Add support for 64-bit atomic operations 2025-07-11 12:42:30 +00:00
test bi: Rewrite dead code elimination 2024-08-20 10:03:30 +02:00
valhall pan/va: Add support for 64-bit atomic operations 2025-07-11 12:42:30 +00:00
bi_builder.h.py panfrost: bi_builder.h.py: stop generating unneeded parentheses 2025-05-22 14:39:32 +00:00
bi_helper_invocations.c panfrost: Add BI_OPCODE_WMASK to bi_instr_uses_helpers 2025-02-28 08:55:32 +00:00
bi_layout.c
bi_liveness.c panfrost: spill registers in SSA form 2025-07-07 19:49:37 +00:00
bi_lower_divergent_indirects.c pan,nir: introduce load_attribute_pan 2024-12-18 08:33:16 +00:00
bi_lower_swizzle.c panfrost/va: valhall-specific swizzle lowering 2025-04-10 10:15:46 -07:00
bi_opcodes.c.py pan/bi: ignore ftz mode when scheduling int instructions 2025-04-10 16:21:09 +00:00
bi_opcodes.h.py pan/bi: ignore ftz mode when scheduling int instructions 2025-04-10 16:21:09 +00:00
bi_opt_constant_fold.c panfrost: fix shift overflow in bi_fold_constant 2024-01-26 09:40:48 +00:00
bi_opt_copy_prop.c panfrost: use an accessor function to read from bi_opcode_props 2025-02-20 23:33:00 +00:00
bi_opt_cse.c panfrost: use an accessor function to read from bi_opcode_props 2025-02-20 23:33:00 +00:00
bi_opt_dce.c panfrost: use an accessor function to read from bi_opcode_props 2025-02-20 23:33:00 +00:00
bi_opt_dual_tex.c
bi_opt_mod_props.c panfrost: use an accessor function to read from bi_opcode_props 2025-02-20 23:33:00 +00:00
bi_opt_push_ubo.c pan: Use a consistent pan_ prefix across src/panfrost/* 2025-05-21 14:58:20 +02:00
bi_packer.c.py panfrost: split pseudo instructions from Bifrost and Valhall 2024-08-20 12:18:19 +00:00
bi_pressure_schedule.c pan/bi: rework memory barriers 2025-06-13 12:05:02 +02:00
bi_print.c panfrost: Reformat using the new style 2023-05-29 21:06:12 +00:00
bi_print_common.c
bi_print_common.h
bi_printer.c.py panfrost: spill registers in SSA form 2025-07-07 19:49:37 +00:00
bi_quirks.h pan/kmod: Expose the raw GPU ID through pan_kmod_dev_props 2025-07-09 08:40:12 +00:00
bi_ra.c pan/va: Add support for 64-bit atomic operations 2025-07-11 12:42:30 +00:00
bi_ra_ssa.c panfrost: spill registers in SSA form 2025-07-07 19:49:37 +00:00
bi_spill_ssa.c panfrost: fix SSA register allocation 2025-07-16 12:16:50 +00:00
bi_swizzles.c.py panfrost: use bifrost instruction table for bi_lower_swizzle 2025-04-10 10:15:46 -07:00
bi_swizzles.h panfrost: use bifrost instruction table for bi_lower_swizzle 2025-04-10 10:15:46 -07:00
bi_test.h pan: Use a consistent pan_ prefix across src/panfrost/* 2025-05-21 14:58:20 +02:00
bi_validate.c panvk: fix typo in printf in bi_validate 2025-06-20 08:29:54 +00:00
bifrost.h panfrost: spill registers in SSA form 2025-07-07 19:49:37 +00:00
bifrost_compile.c pan/va: Add support for 64-bit atomic operations 2025-07-11 12:42:30 +00:00
bifrost_compile.h agx,freedreno,intel,lima,panfrost,svga,virgl,zink: fix supports_indirect_inputs 2025-07-08 06:11:42 +00:00
bifrost_isa.py panfrost: Update bifrost_isa.py to support saturate for valhall 2025-05-22 14:39:32 +00:00
bifrost_nir.h pan/bi: Lower removed instructions in algebraic on v11+ 2025-02-19 20:13:19 +00:00
bifrost_nir_algebraic.py pan/bi: Lower ffract in bifrost_nir_algebraic on v11+ 2025-05-15 07:12:44 +00:00
bir.c pan/va: Add support for 64-bit atomic operations 2025-07-11 12:42:30 +00:00
cmdline.c pan/kmod: Expose the raw GPU ID through pan_kmod_dev_props 2025-07-09 08:40:12 +00:00
compiler.h panfrost: spill registers in SSA form 2025-07-07 19:49:37 +00:00
gen_disasm.py bi: Move bi_disasm definitions to their own header 2024-06-17 07:31:50 +00:00
IR_pseudo.xml pan/bi: rework memory barriers 2025-06-13 12:05:02 +02:00
meson.build panfrost/meson: drop invalid C-only -Wno-override-init from C++ args 2025-07-09 15:44:52 +00:00
nodearray.h
Notes.txt
README.md

README.md

Bifrost compiler

Register file

Defined partially in software, partially in hardware.

Blend shaders

R0 - R3: input (color #0) R4 - R7: input (color #1) R8 - R15: general purpose R48: return address

Fragment

Anything live during BLEND must respect blend shader registers.

R0 - R3: preloaded (message #0) R4 - R7: preloaded (message #1) R57 - R63: preloaded (various)

R0 - R15: general purpose (full threads) R48 - R63: general purpose (full threads)

R32 - R47: general purpose (half threads, or v6)