History

Alyssa Rosenzweig 0b4c673810 pan/bi: Fix incorrect compilation of fsat(reg.yx) Future changes to nir_lower_blend cause fsat(reg.yx) instructions to be generated, which correspond to "FCLAMP.v2f16 x.h10" pseudoinstructions. These get their swizzles lowered, but we forgot to clear the swizzle out, so we end up with extra swap (cancelling out the intended swizzle). Fix the lowering logic. Fixes: `ac636f5adb` ("pan/bi: Use FCLAMP pseudo op for clamp prop") Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20683> (cherry picked from commit `ed46c617b0`)		2023-01-17 10:16:39 -08:00
..
bifrost	pan/bi: Move Bifrost specific C code to src/compiler/bifrost	2023-01-02 17:54:49 +00:00
test	…
valhall	…
ISA.xml	…
Notes.txt	…
README.md	…
bi_builder.h.py	…
bi_helper_invocations.c	…
bi_layout.c	…
bi_liveness.c	…
bi_lower_divergent_indirects.c	…
bi_lower_swizzle.c	pan/bi: Fix incorrect compilation of fsat(reg.yx)	2023-01-17 10:16:39 -08:00
bi_opcodes.c.py	…
bi_opcodes.h.py	…
bi_opt_constant_fold.c	…
bi_opt_copy_prop.c	…
bi_opt_cse.c	…
bi_opt_dce.c	…
bi_opt_dual_tex.c	…
bi_opt_mod_props.c	…
bi_opt_push_ubo.c	…
bi_packer.c.py	…
bi_pressure_schedule.c	…
bi_print.c	…
bi_print_common.c	…
bi_print_common.h	…
bi_printer.c.py	…
bi_quirks.h	…
bi_ra.c	…
bi_test.h	…
bi_validate.c	…
bifrost.h	…
bifrost_compile.c	pan/bi: Move Bifrost specific C code to src/compiler/bifrost	2023-01-02 17:54:49 +00:00
bifrost_compile.h	…
bifrost_isa.py	…
bifrost_nir.h	…
bifrost_nir_algebraic.py	…
bir.c	…
cmdline.c	pan/bi: Move Bifrost specific C code to src/compiler/bifrost	2023-01-02 17:54:49 +00:00
compiler.h	…
gen_disasm.py	pan/bi: Move Bifrost specific C code to src/compiler/bifrost	2023-01-02 17:54:49 +00:00
meson.build	pan/bi: Move Bifrost specific C code to src/compiler/bifrost	2023-01-02 17:54:49 +00:00
nodearray.h	…

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)