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# Shader Module Compilation Options
Shader module compilation options may be specified to override Dawn's default compilation behavior.
`wgpu::ShaderModuleCompilationOptions` may be chained on `wgpu::ShaderModuleDescriptor`. If it is,
Dawn will use these compilation options instead of its defaults.
### `wgpu::ShaderModuleCompilationOptions::strictMath`
Enables or disables strict math. When strict math is disabled, generally the compiler will:
- Assume no NaNs
- Assume no Inf
- Assume no signed 0
- Use multiplication by reciprocal instead of division
- Allow algebraic transformations according to associative and distribute properties.
It is implemented only on Metal and D3D.