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mesa/src/compiler
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Jason Ekstrand 6bcd2af086 nir/algebraic: Add some optimizations for D3D-style Booleans 
D3D Booleans use a 32-bit 0/-1 representation.  Because this previously
matched NIR exactly, we didn't have to really optimize for it.  Now that
we have 1-bit Booleans, we need some specific optimizations to chew
through the D3D12-style Booleans.

Shader-db results on Kaby Lake:

    total instructions in shared programs: 15136811 -> 14967944 (-1.12%)
    instructions in affected programs: 2457021 -> 2288154 (-6.87%)
    helped: 8318
    HURT: 10

    total cycles in shared programs: 373544524 -> 359701825 (-3.71%)
    cycles in affected programs: 151029683 -> 137186984 (-9.17%)
    helped: 7749
    HURT: 682

    total loops in shared programs: 4431 -> 4399 (-0.72%)
    loops in affected programs: 32 -> 0
    helped: 21
    HURT: 0

    total spills in shared programs: 10290 -> 10051 (-2.32%)
    spills in affected programs: 2532 -> 2293 (-9.44%)
    helped: 18
    HURT: 18

    total fills in shared programs: 22203 -> 21732 (-2.12%)
    fills in affected programs: 3319 -> 2848 (-14.19%)
    helped: 18
    HURT: 18

Note that a large chunk of the improvement fixing regressions caused by
switching to 1-bit Booleans.  Previously, our ability to optimize D3D
booleans was improved by using the D3D representation directly in NIR.
Now that NIR does 1-bit bools, we need a few more optimizations.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Eric Anholt <eric@anholt.net>
Tested-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2018-12-16 21:03:02 +00:00
..
glsl nir: Switch to using 1-bit Booleans for almost everything 2018-12-16 21:03:02 +00:00
nir nir/algebraic: Add some optimizations for D3D-style Booleans 2018-12-16 21:03:02 +00:00
spirv nir: Switch to using 1-bit Booleans for almost everything 2018-12-16 21:03:02 +00:00
.gitignore nir/spirv: Remove a duplicate spirv2nir from .gitignore 2016-10-04 07:43:15 -07:00
Android.glsl.gen.mk Android: clean-up trailing '\' in make variables 2017-03-22 17:52:06 +00:00
Android.glsl.mk android: glsl: build shader cache sources 2017-02-20 16:30:37 +00:00
Android.mk Android: glsl: add rules to generate ir_expression*.h header files 2016-09-06 15:58:55 +01:00
Android.nir.gen.mk Android: fix a missing nir_intrinsics.h error 2018-07-21 08:50:23 +02:00
Android.nir.mk android: fix libmesa_nir build 2017-07-21 08:47:56 +03:00
blob.c compiler/blob: Add blob_skip_bytes 2018-07-09 23:02:33 -07:00
blob.h compiler/blob: Add blob_skip_bytes 2018-07-09 23:02:33 -07:00
builtin_type_macros.h glsl_types: vec8/vec16 support 2018-03-25 10:42:54 -04:00
glsl_types.cpp glsl: add has_implicit_uint_to_int_conversion()-helper 2018-11-02 11:10:36 +01:00
glsl_types.h nir: add 16bit type information to glsl types 2018-07-23 23:16:25 +02:00
Makefile.am configure: allow building with python3 2018-10-31 19:15:50 +00:00
Makefile.glsl.am configure: allow building with python3 2018-10-31 19:15:50 +00:00
Makefile.nir.am nir/algebraic: Add unit tests for bitsize validation 2018-12-05 17:57:40 +01:00
Makefile.sources nir: Add a bool to int32 lowering pass 2018-12-16 21:03:02 +00:00
Makefile.spirv.am spirv: autotools: add vtn_gather_types_c.py in distribution tarball 2018-04-10 10:37:46 +02:00
meson.build meson: Build with Python 3 2018-08-10 15:15:09 -07:00
nir_types.cpp nir/large_constants: Properly handle 1-bit bools 2018-12-16 21:03:02 +00:00
nir_types.h nir: Switch to using 1-bit Booleans for almost everything 2018-12-16 21:03:02 +00:00
SConscript spirv: Fix building with SCons 2018-03-30 14:33:03 -06:00
SConscript.glsl mesa: Remove prog_hash_table.c 2016-09-12 10:48:35 +10:00
SConscript.nir nir: mako all the intrinsics 2018-03-27 08:36:37 -04:00
SConscript.spirv spirv: Fix building with SCons 2018-03-30 14:33:03 -06:00
shader_enums.c compiler: add SYSTEM_VALUE_VARYING_COORD 2018-08-14 17:59:02 -04:00
shader_enums.h nir: Use a bitfield for image access qualifiers 2018-08-29 14:04:02 -05:00
shader_info.h spirv: Add support for MinLod 2018-12-11 21:26:23 -06:00