User Guide for SPIR-V Target

Introduction

The SPIR-V target provides code generation for the SPIR-V binary format described in the official SPIR-V specification.

Target Triples

For cross-compilation into SPIR-V use option

-target <Architecture><Subarchitecture>-<Vendor>-<OS>-<Environment>

to specify the target triple:

SPIR-V Architectures

Architecture	Description
spirv32	SPIR-V with 32-bit pointer width.
spirv64	SPIR-V with 64-bit pointer width.

SPIR-V Subarchitectures

Subarchitecture	Description
<empty>	SPIR-V version deduced by tools based on the compiled input.
v1.0	SPIR-V version 1.0.
v1.1	SPIR-V version 1.1.
v1.2	SPIR-V version 1.2.
v1.3	SPIR-V version 1.3.
v1.4	SPIR-V version 1.4.
v1.5	SPIR-V version 1.5.

SPIR-V Vendors

Vendor	Description
<empty>/unknown	Generic SPIR-V target without any vendor-specific settings.

Operating Systems

OS	Description
<empty>/unknown	Defaults to the OpenCL runtime.

SPIR-V Environments

Environment	Description
<empty>/unknown	Defaults to the OpenCL environment.

Example:

-target spirv64v1.0 can be used to compile for SPIR-V version 1.0 with 64-bit pointer width.