command-line-slangc-reference.md

Slang Command Line Options

Usage:

slangc [options...] [--] <input files>

# For help
slangc -h

# To generate this file
slangc -help-style markdown -h

Quick Links

• General
• Target
• Downstream
• Debugging
• Repro
• Experimental
• Internal
• Deprecated
• compiler
• language
• language-version
• archive-type
• line-directive-mode
• debug-info-format
• fp-mode
• fp-denormal-mode
• help-style
• optimization-level
• debug-level
• file-system-type
• source-embed-style
• target
• stage
• vulkan-shift
• capability
• file-extension
• help-category

General

General options

-D

-D<name>[=<value>], -D <name>[=<value>]

Insert a preprocessor macro.

The space between - D and <name> is optional. If no <value> is specified, Slang will define the macro with an empty value.

-depfile

-depfile <path>

Save the source file dependency list in a file.

-entry

-entry <name>

Specify the name of an entry-point function.

When compiling from a single file, this defaults to main if you specify a stage using -stage.

Multiple -entry options may be used in a single invocation. When they do, the file associated with the entry point will be the first one found when searching to the left in the command line.

If no -entry options are given, compiler will use [shader(...)] attributes to detect entry points.

-specialize

-specialize <typename>

Specialize the last entrypoint with <typename>.

-emit-ir

Emit IR typically as a '.slang-module' when outputting to a container.

-h, -help, --help

-h or -h <help-category>

Print this message, or help in specified category.

-help-style

-help-style <help-style>

Help formatting style

-I

-I<path>, -I <path>

Add a path to be used in resolving '#include' and 'import' operations.

-lang

-lang <language>

Set the language for the following input files.

-matrix-layout-column-major

Set the default matrix layout to column-major.

-matrix-layout-row-major

Set the default matrix layout to row-major.

-restrictive-capability-check

Many capability warnings will become an error.

-ignore-capabilities

Do not warn or error if capabilities are violated

-minimum-slang-optimization

Perform minimum code optimization in Slang to favor compilation time.

-disable-non-essential-validations

Disable non-essential IR validations such as use of uninitialized variables.

-disable-source-map

Disable source mapping in the Obfuscation.

-module-name

-module-name <name>

Set the module name to use when compiling multiple .slang source files into a single module.

-o

-o <path>

Specify a path where generated output should be written.

If no -target or -stage is specified, one may be inferred from file extension (see <file-extension>). If multiple -target options and a single -entry are present, each -o associates with the first -target to its left. Otherwise, if multiple -entry options are present, each -o associates with the first -entry to its left, and with the -target that matches the one inferred from <path>.

-profile

-profile <profile>[+<capability>...]

Specify the shader profile for code generation.

Accepted profiles are:

• sm_{4_0,4_1,5_0,5_1,6_0,6_1,6_2,6_3,6_4,6_5,6_6,6_7,6_8,6_9,6_10}

• glsl_{110,120,130,140,150,330,400,410,420,430,440,450,460}

Additional profiles that include -stage information:

• {vs,hs,ds,gs,ps}_<version>

See -capability for information on <capability>

When multiple -target options are present, each -profile associates with the first -target to its left.

-stage

-stage <stage>

Specify the stage of an entry-point function.

When multiple -entry options are present, each -stage associated with the first -entry to its left.

May be omitted if entry-point function has a [shader(...)] attribute; otherwise required for each -entry option.

-target

-target <target>

Specifies the format in which code should be generated.

-v, -version

Display the build version. This is the contents of git describe --tags.

It is typically only set from automated builds(such as distros available on github).A user build will by default be 'unknown'.

-std

-std <language-version>

Specifies the language standard that should be used.

-warnings-as-errors

-warnings-as-errors all or -warnings-as-errors <id>[,<id>...]

all - Treat all warnings as errors.

<id>[,<id>...]: Treat specific warning ids as errors.

-warnings-disable

-warnings-disable <id>[,<id>...]

Disable specific warning ids.

-W

-W<id>

Enable a warning with the specified id.

-Wno-

-Wno-<id>

Disable warning with <id>

-dump-warning-diagnostics

Dump to output list of warning diagnostic numeric and name ids.

--

Treat the rest of the command line as input files.

-report-downstream-time

Reports the time spent in the downstream compiler.

-report-perf-benchmark

Reports compiler performance benchmark results.

-report-detailed-perf-benchmark

Reports compiler performance benchmark results for each intermediate pass (implies -report-perf-benchmark).

-report-checkpoint-intermediates

Reports information about checkpoint contexts used for reverse-mode automatic differentiation.

-report-dynamic-dispatch-sites

Reports information about dynamic dispatch sites for interface calls.

-skip-spirv-validation

Skips spirv validation.

-source-embed-style

-source-embed-style <source-embed-style>

If source embedding is enabled, defines the style used. When enabled (with any style other than none), will write compile results into embeddable source for the target language. If no output file is specified, the output is written to stdout. If an output file is specified it is written either to that file directly (if it is appropriate for the target language), or it will be output to the filename with an appropriate extension.

Note for C/C++ with u16/u32/u64 types it is necessary to have "#include <stdint.h>" before the generated file.

-source-embed-name

-source-embed-name <name>

The name used as the basis for variables output for source embedding.

-source-embed-language

-source-embed-language <language>

The language to be used for source embedding. Defaults to C/C++. Currently only C/C++ are supported

-disable-short-circuit

Disable short-circuiting for "&&" and "||" operations

-unscoped-enum

Treat enums types as unscoped by default.

-preserve-params

Preserve all resource parameters in the output code, even if they are not used by the shader.

-conformance

-conformance <typeName>:<interfaceName>[=<sequentialID>]

Include additional type conformance during linking for dynamic dispatch.

-reflection-json

-reflection-json <path>

Emit reflection data in JSON format to a file.

-msvc-style-bitfield-packing

Pack bitfields according to MSVC rules (msb first, new field when underlying type size changes) rather than gcc-style (lsb first)

Target

Target code generation options

-capability

-capability <capability>[+<capability>...]

Add optional capabilities to a code generation target. See Capabilities below.

-default-image-format-unknown

Set the format of R/W images with unspecified format to 'unknown'. Otherwise try to guess the format.

-disable-dynamic-dispatch

Disables generating dynamic dispatch code.

-disable-specialization

Disables generics and specialization pass.

-fp-mode, -floating-point-mode

-fp-mode <fp-mode>, -floating-point-mode <fp-mode>

Control floating point optimizations

-denorm-mode-fp16

-denorm-mode-fp16 <fp-denormal-mode>

Control handling of 16-bit denormal floating point values in SPIR-V (any, preserve, ftz)

-denorm-mode-fp32

-denorm-mode-fp32 <fp-denormal-mode>

Control handling of 32-bit denormal floating point values in SPIR-V and DXIL (any, preserve, ftz)

-denorm-mode-fp64

-denorm-mode-fp64 <fp-denormal-mode>

Control handling of 64-bit denormal floating point values in SPIR-V (any, preserve, ftz)

-g

-g, -g<debug-info-format>, -g<debug-level>

Include debug information in the generated code, where possible.

<debug-level> is the amount of information, 0..3, unspecified means 2

<debug-info-format> specifies a debugging info format

It is valid to have multiple -g options, such as a <debug-level> and a <debug-info-format>

-line-directive-mode

-line-directive-mode <line-directive-mode>

Sets how the #line directives should be produced. Available options are:

If not specified, default behavior is to use C-style #line directives for HLSL and C/C++ output, and traditional GLSL-style #line directives for GLSL output.

-O

-O<optimization-level>

Set the optimization level.

-obfuscate

Remove all source file information from outputs.

-force-glsl-scalar-layout, -fvk-use-scalar-layout

Make data accessed through ConstantBuffer, ParameterBlock, StructuredBuffer, ByteAddressBuffer and general pointers follow the 'scalar' layout when targeting GLSL or SPIRV.

-fvk-use-dx-layout

Pack members using FXCs member packing rules when targeting GLSL or SPIRV.

-fvk-use-c-layout

Make data accessed through ConstantBuffer, ParameterBlock, StructuredBuffer, ByteAddressBuffer and general pointers follow the C/C++ structure layout rules when targeting SPIRV.

-fvk-<vulkan-shift>-shift

-fvk-<vulkan-shift>-shift <N> <space>

For example '-fvk-b-shift <N> <space>' shifts by N the inferred binding numbers for all resources in 'b' registers of space <space>. For a resource attached with :register(bX, <space>) but not [vk::binding(...)], sets its Vulkan descriptor set to <space> and binding number to X + N. If you need to shift the inferred binding numbers for more than one space, provide more than one such option. If more than one such option is provided for the same space, the last one takes effect. If you need to shift the inferred binding numbers for all sets, use 'all' as <space>.

Links:

• DXC description
• GLSL wiki

-fvk-bind-globals

-fvk-bind-globals <N> <descriptor-set>

Places the $Globals cbuffer at descriptor set <descriptor-set> and binding <N>.

It lets you specify the descriptor for the source at a certain register.

Links:

• DXC description

-fvk-invert-y

Negates (additively inverts) SV_Position.y before writing to stage output.

-fvk-use-dx-position-w

Reciprocates (multiplicatively inverts) SV_Position.w after reading from stage input. For use in fragment shaders only.

-fvk-use-entrypoint-name

Uses the entrypoint name from the source instead of 'main' in the spirv output.

-fvk-use-gl-layout

Use std430 layout instead of D3D buffer layout for raw buffer load/stores.

-fspv-reflect

Include reflection decorations in the resulting SPIRV for shader parameters.

-enable-effect-annotations

Enables support for legacy effect annotation syntax.

-emit-spirv-via-glsl

Generate SPIR-V output by compiling generated GLSL with glslang

-emit-spirv-directly

Generate SPIR-V output directly (default)

-spirv-core-grammar

A path to a specific spirv.core.grammar.json to use when generating SPIR-V output

-incomplete-library

Allow generating code from incomplete libraries with unresolved external functions

-bindless-space-index

-bindless-space-index <index>

Specify the space index for the system defined global bindless resource array.

-spirv-resource-heap-stride

-spirv-resource-heap-stride <stride>

Specify the byte stride for the resource descriptor heap when generating SPIRV with spvDescriptorHeapEXT. Defaults to 0, which will use OpConstantSizeOfEXT(ResourceType).

-spirv-sampler-heap-stride

-spirv-sampler-heap-stride <stride>

Specify the byte stride for the sampler descriptor heap when generating SPIRV with spvDescriptorHeapEXT. Defaults to 0, which will use OpConstantSizeOfEXT(OpTypeSampler).

-separate-debug-info

Emit debug data to a separate file, and strip it from the main output file.

-emit-cpu-via-cpp

Generate CPU targets using C++ (default)

-emit-cpu-via-llvm

Generate CPU targets using LLVM

-llvm-target-triple

-llvm-target-triple <target triple>

Sets the target triple for the LLVM target, enabling cross compilation. The default value is the host platform.

-llvm-cpu

-llvm-cpu <cpu name>

Sets the target CPU for the LLVM target, enabling the extensions and features of that CPU. The default value is "generic".

-llvm-features

-llvm-features <a1,+enable,-disable,...>

Sets a comma-separates list of architecture-specific features for the LLVM targets.

Downstream

Downstream compiler options

-<compiler>-path

-<compiler>-path <path>

Specify path to a downstream <compiler> executable or library.

-default-downstream-compiler

-default-downstream-compiler <language> <compiler>

Set a default compiler for the given language. See -lang for the list of languages.

-X

-X<compiler> <option> -X<compiler>... <options> -X.

Pass arguments to downstream <compiler>. Just -X<compiler> passes just the next argument to the downstream compiler. -X<compiler>... options -X. will pass all of the options inbetween the opening -X and -X. to the downstream compiler.

-pass-through

-pass-through <compiler>

Pass the input through mostly unmodified to the existing compiler <compiler>.

These are intended for debugging/testing purposes, when you want to be able to see what these existing compilers do with the "same" input and options

Debugging

Compiler debugging/instrumentation options

-dump-ast

Dump the AST to a .slang-ast file next to the input.

-dump-intermediate-prefix

-dump-intermediate-prefix <prefix>

File name prefix for -dump-intermediates outputs, default is no prefix

-dump-intermediates

Dump intermediate outputs for debugging.

-dump-ir

Dump the IR after every pass for debugging.

-dump-ir-ids

Dump the IDs with -dump-ir (debug builds only)

-E, -output-preprocessor

Output the preprocessing result and exit.

-no-codegen

Skip the code generation step, just check the code and generate layout.

-output-includes

Print the hierarchy of the processed source files.

-serial-ir

[REMOVED] Serialize the IR between front-end and back-end.

-skip-codegen

Skip the code generation phase.

-validate-ir

Validate the IR after select intermediate passes.

-validate-ir-detailed

Perform debug validation on IR after each intermediate pass.

-dump-ir-before

-dump-ir-before <pass-names>

Dump IR before specified pass, may be specified more than once

-dump-ir-after

-dump-ir-after <pass-names>

Dump IR after specified pass, may be specified more than once

-verbose-paths

When displaying diagnostic output aim to display more detailed path information. In practice this is typically the complete 'canonical' path to the source file used.

-verify-debug-serial-ir

Verify IR in the front-end.

-dump-module

Disassemble and print the module IR.

-get-module-info

Print the name and version of a serialized IR Module

-get-supported-module-versions

Print the minimum and maximum module versions this compiler supports

Repro

Slang repro system related

-dump-repro-on-error

Dump .slang-repro file on any compilation error.

-extract-repro

-extract-repro <name>

Extract the repro files into a folder.

-load-repro-directory

-load-repro-directory <path>

Use repro along specified path

-load-repro

-load-repro <name>

Load repro

-repro-file-system

-repro-file-system <name>

Use a repro as a file system

-dump-repro

Dump a .slang-repro file that can be used to reproduce a compilation on another machine.

-repro-fallback-directory

**Specify a directory to use if a file isn't found in a repro. Should be specified before any repro usage such as load-repro. There are two special directories:

• 'none:' indicates no fallback, so if the file isn't found in the repro compliation will fail
• 'default:' is the default (which is the OS file system)**

Experimental

Experimental options (use at your own risk)

-file-system

-file-system <file-system-type>

Set the filesystem hook to use for a compile request.

-heterogeneous

Output heterogeneity-related code.

-no-mangle

Do as little mangling of names as possible.

-no-hlsl-binding

Do not include explicit parameter binding semantics in the output HLSL code,except for parameters that has explicit bindings in the input source.

-no-hlsl-pack-constant-buffer-elements

Do not pack elements of constant buffers into structs in the output HLSL code.

-validate-uniformity

Perform uniformity validation analysis.

-allow-glsl

Enable GLSL as an input language.

-enable-experimental-passes

Enable experimental compiler passes

-enable-experimental-dynamic-dispatch

Enable experimental dynamic dispatch features

-embed-downstream-ir

Embed downstream IR into emitted slang IR

-experimental-feature

Enable experimental features (loading builtin neural module)

-enable-experimental-rich-diagnostics

Enable experimental rich diagnostics with enhanced formatting and details

-enable-machine-readable-diagnostics

Enable machine-readable diagnostic output in tab-separated format

-diagnostic-color

-diagnostic-color <always|never|auto>

Control colored diagnostic output (auto uses color if stderr is a tty)

Internal

Internal-use options (use at your own risk)

-archive-type

-archive-type <archive-type>

Set the archive type for -save-core-module. Default is zip.

-compile-core-module

Compile the core module from embedded sources. Will return a failure if there is already a core module available.

-doc

Write documentation for -compile-core-module

-ir-compression

-ir-compression <type>

Set compression for IR and AST outputs.

Accepted compression types: none, lite

-load-core-module

-load-core-module <filename>

Load the core module from file.

-r

-r <name>

reference module <name>

-save-core-module

-save-core-module <filename>

Save the core module to an archive file.

-save-core-module-bin-source

-save-core-module-bin-source <filename>

Same as -save-core-module but output the data as a C array.

-save-glsl-module-bin-source

-save-glsl-module-bin-source <filename>

Save the serialized glsl module as a C array.

-track-liveness

Enable liveness tracking. Places SLANG_LIVE_START, and SLANG_LIVE_END in output source to indicate value liveness.

-loop-inversion

Enable loop inversion in the code-gen optimization. Default is off

-whole-program

Generate code for all entry points in a single output (library mode).

Deprecated

Deprecated options (allowed but ignored; may be removed in future)

-parameter-blocks-use-register-spaces

Parameter blocks will use register spaces

-zero-initialize

Initialize all variables to zero.Structs will set all struct-fields without an init expression to 0.All variables will call their default constructor if not explicitly initialized as usual.

compiler

Downstream Compilers (aka Pass through)

• none : Unknown
• fxc : FXC HLSL compiler
• dxc : DXC HLSL compiler
• glslang : GLSLANG GLSL compiler
• spirv-dis : spirv-tools SPIRV disassembler
• clang : Clang C/C++ compiler
• visualstudio, vs : Visual Studio C/C++ compiler
• gcc : GCC C/C++ compiler
• genericcpp, c, cpp : A generic C++ compiler (can be any one of visual studio, clang or gcc depending on system and availability)
• nvrtc : NVRTC CUDA compiler
• llvm : LLVM/Clang slang-llvm
• spirv-opt : spirv-tools SPIRV optimizer
• metal : Metal shader compiler
• tint : Tint compiler

language

Language

• c, C : C language
• cpp, c++, C++, cxx : C++ language
• slang : Slang language
• glsl : GLSL language
• hlsl : HLSL language
• cu, cuda : CUDA

language-version

Language Version

• legacy, default, 2018 : Legacy Slang language
• 2025 : Slang language rules for 2025 and older
• 2026, latest : Slang language rules for 2026 and newer

archive-type

Archive Type

• riff-deflate : Slang RIFF using deflate compression
• riff-lz4 : Slang RIFF using LZ4 compression
• zip : Zip file
• riff : Slang RIFF without compression

line-directive-mode

Line Directive Mode

• none : Don't emit #line directives at all
• source-map : Use source map to track line associations (doen't emit #line)
• default : Default behavior
• standard : Emit standard C-style #line directives.
• glsl : Emit GLSL-style directives with file number instead of name.

debug-info-format

Debug Info Format

• default-format : Use the default debugging format for the target
• c7 : CodeView C7 format (typically means debugging infomation is embedded in the binary)
• pdb : Program database
• stabs : STABS debug format
• coff : COFF debug format
• dwarf : DWARF debug format

fp-mode

Floating Point Mode

• precise : Disable optimization that could change the output of floating-point computations, including around infinities, NaNs, denormalized values, and negative zero. Prefer the most precise versions of special functions supported by the target.
• fast : Allow optimizations that may change results of floating-point computations. Prefer the fastest version of special functions supported by the target.
• default : Default floating point mode

fp-denormal-mode

Floating Point Denormal Handling Mode

• any : Use any denormal handling mode (default). The mode used is implementation defined.
• preserve : Preserve denormal values
• ftz : Flush denormals to zero

help-style

Help Style

• text : Text suitable for output to a terminal
• markdown : Markdown
• no-link-markdown : Markdown without links

optimization-level

Optimization Level

• 0, none : Disable all optimizations
• 1, default : Enable a default level of optimization.This is the default if no -O options are used.
• 2, high : Enable aggressive optimizations for speed.
• 3, maximal : Enable further optimizations, which might have a significant impact on compile time, or involve unwanted tradeoffs in terms of code size.

debug-level

Debug Level

• 0, none : Don't emit debug information at all.
• 1, minimal : Emit as little debug information as possible, while still supporting stack traces.
• 2, standard : Emit whatever is the standard level of debug information for each target.
• 3, maximal : Emit as much debug information as possible for each target.

file-system-type

File System Type

• default : Default file system.
• load-file : Just implements loadFile interface, so will be wrapped with CacheFileSystem internally.
• os : Use the OS based file system directly (without file system caching)

source-embed-style

Source Embed Style

• none : No source level embedding
• default : The default embedding for the type to be embedded
• text : Embed as text. May change line endings. If output isn't text will use 'default'. Size will not contain terminating 0.
• binary-text : Embed as text assuming contents is binary.
• u8 : Embed as unsigned bytes.
• u16 : Embed as uint16_t.
• u32 : Embed as uint32_t.
• u64 : Embed as uint64_t.

target

Target

• unknown
• none
• hlsl : HLSL source code
• dxbc : DirectX shader bytecode binary
• dxbc-asm, dxbc-assembly : DirectX shader bytecode assembly
• dxil : DirectX Intermediate Language binary
• dxil-asm, dxil-assembly : DirectX Intermediate Language assembly
• glsl : GLSL(Vulkan) source code
• spirv : SPIR-V binary
• spirv-asm, spirv-assembly : SPIR-V assembly
• c : C source code
• cpp, c++, cxx : C++ source code
• hpp : C++ source header
• torch, torch-binding, torch-cpp, torch-cpp-binding : C++ for pytorch binding
• host-cpp, host-c++, host-cxx : C++ source for host execution
• exe, executable : Executable binary
• shader-sharedlib, shader-sharedlibrary, shader-dll : Shared library/Dll for shader kernel
• sharedlib, sharedlibrary, dll : Shared library/Dll for host execution
• cuda, cu : CUDA source code
• cuh : CUDA source header
• ptx : PTX assembly
• cuobj, cubin : CUDA binary
• host-callable, callable : Host callable
• object-code, shader-object-code : Object code for host execution (shader style)
• host-host-callable : Host callable for host execution
• metal : Metal shader source
• metallib : Metal Library Bytecode
• metallib-asm : Metal Library Bytecode assembly
• wgsl : WebGPU shading language source
• wgsl-spirv-asm, wgsl-spirv-assembly : SPIR-V assembly via WebGPU shading language
• wgsl-spirv : SPIR-V via WebGPU shading language
• slangvm, slang-vm : Slang VM byte code
• host-object-code : Object code for host execution (host style)
• llvm-host-ir, llvm-ir : LLVM IR assembly (host style)
• llvm-shader-ir : LLVM IR assembly (shader style)

stage

Stage

• vertex
• hull, tesscontrol
• domain, tesseval
• geometry
• pixel, fragment
• compute
• raygeneration
• intersection
• anyhit
• closesthit
• miss
• callable
• mesh
• amplification, task
• dispatch

vulkan-shift

Vulkan Shift

• b : Constant buffer view
• s : Sampler
• t : Shader resource view
• u : Unorderd access view

capability

A capability describes an optional feature that a target may or may not support. When a -capability is specified, the compiler may assume that the target supports that capability, and generate code accordingly.

• spirv_1_{ 0, 1, 2, 3, 4, 5 } : minimum supported SPIR - V version
• textualTarget
• hlsl
• glsl
• c
• cpp
• cuda
• metal
• spirv
• wgsl
• slangvm
• llvm
• glsl_spirv_1_0
• glsl_spirv_1_1
• glsl_spirv_1_2
• glsl_spirv_1_3
• glsl_spirv_1_4
• glsl_spirv_1_5
• glsl_spirv_1_6
• metallib_2_3
• metallib_2_4
• metallib_3_0
• metallib_3_1
• metallib_4_0
• hlsl_nvapi
• hlsl_2018
• optix_coopvec
• optix_multilevel_traversal
• vertex
• fragment
• compute
• hull
• domain
• geometry
• dispatch
• SPV_EXT_fragment_shader_interlock : enables the SPV_EXT_fragment_shader_interlock extension
• SPV_EXT_physical_storage_buffer : enables the SPV_EXT_physical_storage_buffer extension
• SPV_EXT_fragment_fully_covered : enables the SPV_EXT_fragment_fully_covered extension
• SPV_EXT_descriptor_indexing : enables the SPV_EXT_descriptor_indexing extension
• SPV_EXT_shader_atomic_float_add : enables the SPV_EXT_shader_atomic_float_add extension
• SPV_EXT_shader_atomic_float16_add : enables the SPV_EXT_shader_atomic_float16_add extension
• SPV_EXT_shader_atomic_float_min_max : enables the SPV_EXT_shader_atomic_float_min_max extension
• SPV_EXT_mesh_shader : enables the SPV_EXT_mesh_shader extension
• SPV_EXT_demote_to_helper_invocation : enables the SPV_EXT_demote_to_helper_invocation extension
• SPV_KHR_maximal_reconvergence : enables the SPV_KHR_maximal_reconvergence extension
• SPV_KHR_quad_control : enables the SPV_KHR_quad_control extension
• SPV_KHR_fragment_shader_barycentric : enables the SPV_KHR_fragment_shader_barycentric extension
• SPV_KHR_non_semantic_info : enables the SPV_KHR_non_semantic_info extension
• SPV_KHR_device_group : enables the SPV_KHR_device_group extension
• SPV_KHR_variable_pointers : enables the SPV_KHR_variable_pointers extension
• SPV_KHR_ray_tracing : enables the SPV_KHR_ray_tracing extension
• SPV_KHR_ray_query : enables the SPV_KHR_ray_query extension
• SPV_KHR_ray_tracing_position_fetch : enables the SPV_KHR_ray_tracing_position_fetch extension
• SPV_KHR_shader_clock : enables the SPV_KHR_shader_clock extension
• SPV_NV_shader_subgroup_partitioned : enables the SPV_NV_shader_subgroup_partitioned extension
• SPV_KHR_subgroup_rotate : enables the SPV_KHR_subgroup_rotate extension
• SPV_NV_ray_tracing_motion_blur : enables the SPV_NV_ray_tracing_motion_blur extension
• SPV_EXT_shader_invocation_reorder : enables the SPV_EXT_shader_invocation_reorder extension
• SPV_NV_shader_invocation_reorder : enables the SPV_NV_shader_invocation_reorder extension
• SPV_NV_cluster_acceleration_structure : enables the SPV_NV_cluster_acceleration_structure extension
• SPV_NV_linear_swept_spheres : enables the SPV_NV_linear_swept_spheres extension
• SPV_NV_shader_image_footprint : enables the SPV_NV_shader_image_footprint extension
• SPV_KHR_compute_shader_derivatives : enables the SPV_KHR_compute_shader_derivatives extension
• SPV_GOOGLE_user_type : enables the SPV_GOOGLE_user_type extension
• SPV_EXT_replicated_composites : enables the SPV_EXT_replicated_composites extension
• SPV_KHR_vulkan_memory_model : enables the SPV_KHR_vulkan_memory_model extension
• SPV_NV_cooperative_vector : enables the SPV_NV_cooperative_vector extension
• SPV_KHR_cooperative_matrix : enables the SPV_KHR_cooperative_matrix extension
• SPV_NV_tensor_addressing : enables the SPV_NV_tensor_addressing extension
• SPV_NV_cooperative_matrix2 : enables the SPV_NV_cooperative_matrix2 extension
• SPV_NV_bindless_texture : enables the SPV_NV_bindless_texture extension
• SPV_EXT_float8 : enables the SPV_EXT_float8 extension
• SPV_EXT_descriptor_heap : enables the SPV_EXT_descriptor_heap extension
• SPV_KHR_untyped_pointers : enables the SPV_KHR_untyped_pointers extension
• SPV_KHR_bfloat16 : enables the SPV_KHR_bfloat16 extension
• spvDeviceGroup
• spvAtomicFloat32AddEXT
• spvAtomicFloat16AddEXT
• spvAtomicFloat64AddEXT
• spvInt64Atomics
• spvAtomicFloat32MinMaxEXT
• spvAtomicFloat16MinMaxEXT
• spvAtomicFloat64MinMaxEXT
• spvDerivativeControl
• spvImageQuery
• spvImageGatherExtended
• spvSparseResidency
• spvImageFootprintNV
• spvMinLod
• spvFloat8EXT
• spvBFloat16KHR
• spvFragmentShaderPixelInterlockEXT
• spvFragmentBarycentricKHR
• spvFragmentFullyCoveredEXT
• spvGroupNonUniform
• spvGroupNonUniformBallot
• spvGroupNonUniformShuffle
• spvGroupNonUniformShuffleRelative
• spvGroupNonUniformClustered
• spvGroupNonUniformArithmetic
• spvGroupNonUniformQuad
• spvGroupNonUniformVote
• spvGroupNonUniformPartitionedNV
• spvGroupNonUniformRotateKHR
• spvRayTracingMotionBlurNV
• spvMeshShadingEXT
• spvRayTracingKHR
• spvRayTracingPositionFetchKHR
• spvRayQueryKHR
• spvRayQueryPositionFetchKHR
• spvShaderInvocationReorderEXT
• spvShaderInvocationReorderNV
• spvRayTracingClusterAccelerationStructureNV
• spvRayTracingLinearSweptSpheresGeometryNV
• spvShaderClockKHR
• spvShaderNonUniformEXT
• spvShaderNonUniform
• spvDemoteToHelperInvocationEXT
• spvDemoteToHelperInvocation
• spvReplicatedCompositesEXT
• spvCooperativeVectorNV
• spvCooperativeVectorTrainingNV
• spvCooperativeMatrixKHR
• spvCooperativeMatrixReductionsNV
• spvCooperativeMatrixConversionsNV
• spvCooperativeMatrixPerElementOperationsNV
• spvCooperativeMatrixTensorAddressingNV
• spvCooperativeMatrixBlockLoadsNV
• spvTensorAddressingNV
• spvMaximalReconvergenceKHR
• spvQuadControlKHR
• spvVulkanMemoryModelKHR
• spvVulkanMemoryModelDeviceScopeKHR
• spvBindlessTextureNV
• spvDescriptorHeapEXT
• ser_hlsl_native
• metallib_latest
• dxil_lib
• any_target
• any_textual_target
• any_gfx_target
• any_cpp_target
• cpp_cuda
• cpp_llvm
• cpp_cuda_llvm
• cpp_cuda_spirv
• cpp_cuda_spirv_llvm
• cpp_cuda_metal_spirv
• cuda_spirv
• cpp_cuda_glsl_spirv
• cpp_cuda_glsl_hlsl
• cpp_cuda_glsl_hlsl_llvm
• cpp_cuda_glsl_hlsl_spirv
• cpp_cuda_glsl_hlsl_spirv_llvm
• cpp_cuda_glsl_hlsl_spirv_wgsl
• cpp_cuda_glsl_hlsl_spirv_wgsl_llvm
• cpp_cuda_glsl_hlsl_metal_spirv
• cpp_cuda_glsl_hlsl_metal_spirv_llvm
• cpp_cuda_glsl_hlsl_metal_spirv_wgsl
• cpp_cuda_glsl_hlsl_metal_spirv_wgsl_llvm
• cpp_cuda_hlsl
• cpp_cuda_hlsl_spirv
• cpp_cuda_hlsl_metal_spirv
• cpp_glsl
• cpp_glsl_hlsl_spirv
• cpp_glsl_hlsl_spirv_wgsl
• cpp_glsl_hlsl_metal_spirv
• cpp_glsl_hlsl_metal_spirv_wgsl
• cpp_hlsl
• cuda_glsl_hlsl
• cuda_hlsl_metal_spirv
• cuda_glsl_hlsl_spirv
• cuda_glsl_hlsl_spirv_llvm
• cuda_glsl_hlsl_spirv_wgsl
• cuda_glsl_hlsl_metal_spirv
• cuda_glsl_hlsl_metal_spirv_wgsl
• cuda_glsl_spirv
• cuda_glsl_metal_spirv
• cuda_glsl_metal_spirv_wgsl
• cuda_glsl_metal_spirv_wgsl_llvm
• cuda_hlsl
• cuda_hlsl_spirv
• glsl_hlsl_spirv
• glsl_hlsl_spirv_wgsl
• glsl_hlsl_metal_spirv
• glsl_hlsl_metal_spirv_wgsl
• glsl_metal_spirv
• glsl_metal_spirv_wgsl
• glsl_spirv
• glsl_spirv_wgsl
• hlsl_spirv
• SPV_NV_compute_shader_derivatives : enables the SPV_NV_compute_shader_derivatives extension
• spvShaderInvocationReorderMotionNV
• spvShaderInvocationReorderMotionEXT
• GL_EXT_buffer_reference : enables the GL_EXT_buffer_reference extension
• GL_EXT_buffer_reference_uvec2 : enables the GL_EXT_buffer_reference_uvec2 extension
• GL_EXT_debug_printf : enables the GL_EXT_debug_printf extension
• GL_EXT_demote_to_helper_invocation : enables the GL_EXT_demote_to_helper_invocation extension
• GL_EXT_maximal_reconvergence : enables the GL_EXT_maximal_reconvergence extension
• GL_EXT_shader_quad_control : enables the GL_EXT_shader_quad_control extension
• GL_EXT_device_group : enables the GL_EXT_device_group extension
• GL_EXT_fragment_shader_barycentric : enables the GL_EXT_fragment_shader_barycentric extension
• GL_EXT_mesh_shader : enables the GL_EXT_mesh_shader extension
• GL_EXT_nonuniform_qualifier : enables the GL_EXT_nonuniform_qualifier extension
• GL_EXT_ray_query : enables the GL_EXT_ray_query extension
• GL_EXT_ray_tracing : enables the GL_EXT_ray_tracing extension
• GL_EXT_ray_tracing_position_fetch_ray_tracing : enables the GL_EXT_ray_tracing_position_fetch_ray_tracing extension
• GL_EXT_ray_tracing_position_fetch_ray_query : enables the GL_EXT_ray_tracing_position_fetch_ray_query extension
• GL_EXT_ray_tracing_position_fetch : enables the GL_EXT_ray_tracing_position_fetch extension
• GL_EXT_samplerless_texture_functions : enables the GL_EXT_samplerless_texture_functions extension
• GL_EXT_shader_atomic_float : enables the GL_EXT_shader_atomic_float extension
• GL_EXT_shader_atomic_float_min_max : enables the GL_EXT_shader_atomic_float_min_max extension
• GL_EXT_shader_atomic_float2 : enables the GL_EXT_shader_atomic_float2 extension
• GL_EXT_shader_atomic_int64 : enables the GL_EXT_shader_atomic_int64 extension
• GL_EXT_shader_explicit_arithmetic_types : enables the GL_EXT_shader_explicit_arithmetic_types extension
• GL_EXT_shader_explicit_arithmetic_types_int64 : enables the GL_EXT_shader_explicit_arithmetic_types_int64 extension
• GL_EXT_shader_image_load_store : enables the GL_EXT_shader_image_load_store extension
• GL_EXT_shader_realtime_clock : enables the GL_EXT_shader_realtime_clock extension
• GL_EXT_texture_query_lod : enables the GL_EXT_texture_query_lod extension
• GL_EXT_texture_shadow_lod : enables the GL_EXT_texture_shadow_lod extension
• GL_ARB_derivative_control : enables the GL_ARB_derivative_control extension
• GL_ARB_fragment_shader_interlock : enables the GL_ARB_fragment_shader_interlock extension
• GL_ARB_gpu_shader5 : enables the GL_ARB_gpu_shader5 extension
• GL_ARB_shader_image_load_store : enables the GL_ARB_shader_image_load_store extension
• GL_ARB_shader_image_size : enables the GL_ARB_shader_image_size extension
• GL_ARB_texture_multisample : enables the GL_ARB_texture_multisample extension
• GL_ARB_shader_texture_image_samples : enables the GL_ARB_shader_texture_image_samples extension
• GL_ARB_sparse_texture : enables the GL_ARB_sparse_texture extension
• GL_ARB_sparse_texture2 : enables the GL_ARB_sparse_texture2 extension
• GL_ARB_sparse_texture_clamp : enables the GL_ARB_sparse_texture_clamp extension
• GL_ARB_texture_gather : enables the GL_ARB_texture_gather extension
• GL_ARB_texture_query_levels : enables the GL_ARB_texture_query_levels extension
• GL_ARB_shader_clock : enables the GL_ARB_shader_clock extension
• GL_ARB_shader_clock64 : enables the GL_ARB_shader_clock64 extension
• GL_ARB_gpu_shader_int64 : enables the GL_ARB_gpu_shader_int64 extension
• GL_KHR_memory_scope_semantics : enables the GL_KHR_memory_scope_semantics extension
• GL_KHR_shader_subgroup_arithmetic : enables the GL_KHR_shader_subgroup_arithmetic extension
• GL_KHR_shader_subgroup_ballot : enables the GL_KHR_shader_subgroup_ballot extension
• GL_KHR_shader_subgroup_basic : enables the GL_KHR_shader_subgroup_basic extension
• GL_KHR_shader_subgroup_clustered : enables the GL_KHR_shader_subgroup_clustered extension
• GL_KHR_shader_subgroup_quad : enables the GL_KHR_shader_subgroup_quad extension
• GL_KHR_shader_subgroup_shuffle : enables the GL_KHR_shader_subgroup_shuffle extension
• GL_KHR_shader_subgroup_shuffle_relative : enables the GL_KHR_shader_subgroup_shuffle_relative extension
• GL_KHR_shader_subgroup_vote : enables the GL_KHR_shader_subgroup_vote extension
• GL_KHR_shader_subgroup_rotate : enables the GL_KHR_shader_subgroup_rotate extension
• GL_NV_compute_shader_derivatives : enables the GL_NV_compute_shader_derivatives extension
• GL_NV_fragment_shader_barycentric : enables the GL_NV_fragment_shader_barycentric extension
• GL_NV_gpu_shader5 : enables the GL_NV_gpu_shader5 extension
• GL_NV_ray_tracing : enables the GL_NV_ray_tracing extension
• GL_NV_ray_tracing_motion_blur : enables the GL_NV_ray_tracing_motion_blur extension
• GL_NV_shader_atomic_fp16_vector : enables the GL_NV_shader_atomic_fp16_vector extension
• GL_NV_shader_invocation_reorder : enables the GL_NV_shader_invocation_reorder extension
• GL_EXT_shader_invocation_reorder : enables the GL_EXT_shader_invocation_reorder extension
• GL_NV_shader_invocation_reorder_motion : enables the GL_NV_shader_invocation_reorder_motion extension
• GL_EXT_shader_invocation_reorder_motion : enables the GL_EXT_shader_invocation_reorder_motion extension
• GL_NV_shader_subgroup_partitioned : enables the GL_NV_shader_subgroup_partitioned extension
• GL_NV_shader_texture_footprint : enables the GL_NV_shader_texture_footprint extension
• GL_NV_cluster_acceleration_structure : enables the GL_NV_cluster_acceleration_structure extension
• GL_NV_cooperative_vector : enables the GL_NV_cooperative_vector extension
• nvapi
• raytracing
• ser_nvapi
• ser_dxr
• ser
• ser_nv
• motionblur_nv
• rayquery
• raytracing_motionblur
• ser_motion
• ser_nv_motion
• shaderclock
• fragmentshaderinterlock
• atomic64
• atomicfloat
• atomicfloat2
• fragmentshaderbarycentric
• shadermemorycontrol
• bufferreference
• bufferreference_int64
• cooperative_vector
• cooperative_vector_training
• cooperative_matrix
• cooperative_matrix_spirv
• cooperative_matrix_reduction
• cooperative_matrix_conversion
• cooperative_matrix_map_element
• cooperative_matrix_tensor_addressing
• cooperative_matrix_block_load
• tensor_addressing
• cooperative_matrix_2
• vk_mem_model
• mem_model
• descriptor_handle
• pixel
• tesscontrol
• tesseval
• raygen
• raygeneration
• intersection
• anyhit
• closesthit
• callable
• miss
• mesh
• task
• amplification
• any_stage
• amplification_mesh
• raytracing_stages
• anyhit_closesthit
• anyhit_intersection
• raygen_closesthit_miss
• anyhit_closesthit_intersection
• anyhit_closesthit_intersection_miss
• raygen_closesthit_miss_callable
• compute_tesscontrol_tesseval
• compute_fragment
• compute_fragment_geometry_vertex
• domain_hull
• raytracingstages_fragment
• raytracingstages_compute
• raytracingstages_compute_amplification_mesh
• raytracingstages_compute_fragment
• raytracingstages_compute_fragment_geometry_vertex
• meshshading
• shadermemorycontrol_compute
• subpass
• spirv_latest
• SPIRV_1_0
• SPIRV_1_1
• SPIRV_1_2
• SPIRV_1_3
• SPIRV_1_4
• SPIRV_1_5
• SPIRV_1_6
• sm_4_0_version
• sm_4_0
• sm_4_1_version
• sm_4_1
• sm_5_0_version
• sm_5_0
• sm_5_1_version
• sm_5_1
• sm_6_0_version
• sm_6_0
• sm_6_1_version
• sm_6_1
• sm_6_2_version
• sm_6_2
• sm_6_3_version
• sm_6_3
• sm_6_4_version
• sm_6_4
• sm_6_5_version
• sm_6_5
• sm_6_6_version
• sm_6_6
• sm_6_7_version
• sm_6_7
• sm_6_8_version
• sm_6_8
• sm_6_9_version
• sm_6_9
• sm_6_10_version
• sm_6_10
• DX_4_0
• DX_4_1
• DX_5_0
• DX_5_1
• DX_6_0
• DX_6_1
• DX_6_2
• DX_6_3
• DX_6_4
• DX_6_5
• DX_6_6
• DX_6_7
• DX_6_8
• DX_6_9
• DX_6_10
• GLSL_130 : enables the GLSL_130 extension
• GLSL_140 : enables the GLSL_140 extension
• GLSL_150 : enables the GLSL_150 extension
• GLSL_330 : enables the GLSL_330 extension
• GLSL_400 : enables the GLSL_400 extension
• GLSL_410 : enables the GLSL_410 extension
• GLSL_420 : enables the GLSL_420 extension
• GLSL_430 : enables the GLSL_430 extension
• GLSL_440 : enables the GLSL_440 extension
• GLSL_450 : enables the GLSL_450 extension
• GLSL_460 : enables the GLSL_460 extension
• GLSL_410_SPIRV_1_0 : enables the GLSL_410_SPIRV_1_0 extension
• GLSL_420_SPIRV_1_0 : enables the GLSL_420_SPIRV_1_0 extension
• GLSL_430_SPIRV_1_0 : enables the GLSL_430_SPIRV_1_0 extension
• cuda_sm_1_0
• cuda_sm_2_0
• cuda_sm_3_0
• cuda_sm_3_5
• cuda_sm_4_0
• cuda_sm_5_0
• cuda_sm_6_0
• cuda_sm_7_0
• cuda_sm_8_0
• cuda_sm_9_0
• atomic_reduce
• atomic_bfloat16
• METAL_2_3
• METAL_2_4
• METAL_3_0
• METAL_3_1
• METAL_4_0
• appendstructuredbuffer
• atomic_hlsl
• atomic_hlsl_nvapi
• atomic_hlsl_sm_6_6
• byteaddressbuffer
• byteaddressbuffer_rw
• consumestructuredbuffer
• structuredbuffer
• structuredbuffer_rw
• implicit_derivatives_sampling
• fragmentprocessing
• fragmentprocessing_derivativecontrol
• getattributeatvertex
• memorybarrier
• texture_sm_4_0
• texture_sm_4_1
• texture_sm_4_1_samplerless
• texture_sm_4_1_compute_fragment
• texture_sm_4_0_fragment
• texture_sm_4_1_clamp_fragment
• texture_sm_4_1_vertex_fragment_geometry
• texture_gather
• image_samples
• image_size
• texture_size
• texture_querylod
• texture_querylevels
• texture_shadowlod
• texture_shadowgrad
• atomic_glsl_float1
• atomic_glsl_float2
• atomic_glsl_halfvec
• atomic_glsl
• atomic_glsl_int64
• GLSL_430_SPIRV_1_0_compute : enables the GLSL_430_SPIRV_1_0_compute extension
• image_loadstore
• nonuniformqualifier
• printf
• texturefootprint
• texturefootprintclamp
• shader5_sm_4_0
• shader5_sm_5_0
• pack_vector
• subgroup_basic
• subgroup_ballot
• subgroup_ballot_activemask
• subgroup_basic_ballot
• subgroup_vote
• shaderinvocationgroup
• subgroup_arithmetic
• subgroup_shuffle
• subgroup_shufflerelative
• subgroup_clustered
• subgroup_quad
• subgroup_partitioned
• subgroup_rotate
• atomic_glsl_hlsl_nvapi_cuda_metal_float1
• atomic_glsl_hlsl_nvapi_cuda5_int64
• atomic_glsl_hlsl_nvapi_cuda6_int64
• atomic_glsl_hlsl_nvapi_cuda9_int64
• atomic_glsl_hlsl_cuda_metal
• atomic_glsl_hlsl_cuda9_int64
• helper_lane
• quad_control
• breakpoint
• raytracing_allstages
• raytracing_anyhit
• raytracing_intersection
• raytracing_anyhit_closesthit
• raytracing_lss
• raytracing_lss_ho
• raytracing_anyhit_closesthit_intersection
• raytracing_object_space_ray
• raytracing_raygen_closesthit_miss
• raytracing_anyhit_closesthit_intersection_miss
• raytracing_raygen_closesthit_miss_callable
• raytracing_position
• raytracing_motionblur_anyhit_closesthit_intersection_miss
• raytracing_motionblur_raygen_closesthit_miss
• rayquery_position
• ser_raygen
• ser_raygen_closesthit_miss
• ser_nv_raygen
• ser_nv_raygen_closesthit_miss
• ser_nv_motion_raygen_closesthit_miss
• ser_any_closesthit_intersection_miss
• ser_anyhit_closesthit_intersection
• ser_anyhit_closesthit
• ser_motion_raygen_closesthit_miss
• ser_motion_raygen
• ser_dxr_raygen_closesthit_miss
• ser_dxr_raygen
• all

file-extension

A <language>, <format>, and/or <stage> may be inferred from the extension of an input or -o path

• hlsl, fx : hlsl
• dxbc
• dxbc-asm : dxbc-assembly
• dxil
• dxil-asm : dxil-assembly
• glsl
• vert : glsl (vertex)
• frag : glsl (fragment)
• geom : glsl (geoemtry)
• tesc : glsl (hull)
• tese : glsl (domain)
• comp : glsl (compute)
• mesh : glsl (mesh)
• task : glsl (amplification)
• slang
• spv : SPIR-V
• spv-asm : SPIR-V assembly
• c
• cpp, c++, cxx : C++
• hpp : C++ Header
• exe : executable
• dll, so : sharedlibrary/dll
• cu : CUDA
• cuh : CUDA Header
• ptx : PTX
• obj, o : object-code
• zip : container
• slang-module, slang-library : Slang Module/Library
• dir : Container as a directory

help-category

Available help categories for the -h option

• General : General options
• Target : Target code generation options
• Downstream : Downstream compiler options
• Debugging : Compiler debugging/instrumentation options
• Repro : Slang repro system related
• Experimental : Experimental options (use at your own risk)
• Internal : Internal-use options (use at your own risk)
• Deprecated : Deprecated options (allowed but ignored; may be removed in future)
• compiler : Downstream Compilers (aka Pass through)
• language : Language
• language-version : Language Version
• archive-type : Archive Type
• line-directive-mode : Line Directive Mode
• debug-info-format : Debug Info Format
• fp-mode : Floating Point Mode
• fp-denormal-mode : Floating Point Denormal Handling Mode
• help-style : Help Style
• optimization-level : Optimization Level
• debug-level : Debug Level
• file-system-type : File System Type
• source-embed-style : Source Embed Style
• target : Target
• stage : Stage
• vulkan-shift : Vulkan Shift
• capability : A capability describes an optional feature that a target may or may not support. When a -capability is specified, the compiler may assume that the target supports that capability, and generate code accordingly.
• file-extension : A <language>, <format>, and/or <stage> may be inferred from the extension of an input or -o path
• help-category : Available help categories for the -h option