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mesa/src/compiler
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Rhys Perry 67ad7359ff nir/divergence_analysis: disable phi undef optimization by default 
If the backend does not implement this too, or some other future transform
modifiess the phi so that this isn't the case (replace the phi with a
bcsel or replace undef with zero), then it will not actually be uniform.

This keeps it enabled to some degree for RADV/ACO.

fossil-db (navi31):
Totals from 76 (0.10% of 79395) affected shaders:
Instrs: 195008 -> 195282 (+0.14%)
CodeSize: 1012592 -> 1015884 (+0.33%)
Latency: 3892826 -> 3898843 (+0.15%); split: -0.00%, +0.15%
InvThroughput: 460681 -> 460964 (+0.06%)
Copies: 13508 -> 13516 (+0.06%)
Branches: 5244 -> 5412 (+3.20%)
PreVGPRs: 5092 -> 5096 (+0.08%)
VALU: 116177 -> 116197 (+0.02%)
SALU: 23449 -> 23785 (+1.43%)

fossil-db (navi21):
Totals from 76 (0.10% of 79395) affected shaders:
Instrs: 164471 -> 164981 (+0.31%)
CodeSize: 883988 -> 888420 (+0.50%)
Latency: 4074287 -> 4082043 (+0.19%)
InvThroughput: 783783 -> 784276 (+0.06%); split: -0.00%, +0.06%
Branches: 5262 -> 5430 (+3.19%)
PreVGPRs: 5100 -> 5104 (+0.08%)
VALU: 116375 -> 116381 (+0.01%)
SALU: 23589 -> 23925 (+1.42%)

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30211>
2024-10-10 14:59:26 +00:00
..
clc clc: find opencl headers from the installed llvm/clang location 2024-09-17 14:29:19 +03:00
glsl glsl: remove linker.cpp 2024-10-04 00:10:59 +00:00
isaspec build: pass licensing information in SPDX form 2024-06-29 12:42:49 -07:00
nir nir/divergence_analysis: disable phi undef optimization by default 2024-10-10 14:59:26 +00:00
rust compiler/rust: Copy MappedInstrs from NAK 2024-10-01 11:33:35 +00:00
spirv spirv: Update SPIR-V grammar to use aliases 2024-10-10 02:48:00 +00:00
builtin_types.py compiler/types: Add multisample vimage/vtexture types 2024-08-27 15:06:16 +00:00
builtin_types_c.py util,vulkan,mesa,compiler: Generate source files with utf8 encoding from mako template 2023-12-07 12:41:07 +00:00
builtin_types_h.py util,vulkan,mesa,compiler: Generate source files with utf8 encoding from mako template 2023-12-07 12:41:07 +00:00
glsl_types.c compiler/types: Add multisample vimage/vtexture types 2024-08-27 15:06:16 +00:00
glsl_types.h nir/lower_vars_to_scratch: calculate threshold-limited variable size separately 2024-08-07 14:32:28 +00:00
meson.build nak: Move bitset to compiler crate 2024-08-07 21:08:18 +00:00
shader_enums.c nir: add SYSTEM_VALUE_BASE_WORKGROUP_ID 2024-04-24 20:18:48 +00:00
shader_enums.h compiler, vk: Support subgroup size of 4 2024-08-29 03:30:31 +00:00
shader_info.h compiler: Allow derivative_group to be used for all stages in shader_info 2024-09-03 20:03:18 +00:00