Spir to ir tool branch #5175
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Spir to ir tool branch #5175
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Tool name: spir-to-ir Function: Provides an interface used within the compiler driver toolchain which converts SPIR-V to LLVM-IR. Using llvm-spirv as the main conversion tool, the purpose of this is to be able to take binaries and convert them to LLVM-IR. The conversion only takes place if the input is SPIR-V, and if the LLVM-IR is provided it is simply copied and passed through. This tool is useful for handling generated fat objects/archives that contain SPIR-V as opposed to typical LLVM-IR. We do not now the type of files within the device objects, so we use this tool to make sure that file consumed after unbundling is always LLVM-IR. Example usage: spir-to-ir input.spv -o output.bc // creates LLVM-IR output.bc spir-to-ir input.bc -o output.bc // no conversion, creates output.bc
When a user creates objects/archives based off of -fsycl-device-obj=spirv
we want to be able to consume these objects seamlessly. After any objects
are unbundled, we will pass these through spir-to-ir-wrapper to potentially
convert them to LLVM-IR before performing the device link.
Toolchain flow will resemble:
fat object
|
unbundle
|
+-------+------+
| |
spir-to-ir |
| |
llvm-link |
| |
wrap |
| |
+-------+------+
|
link
|
@AGindinson, I wanted to get this up so you can take a look at what I'm trying to do. I haven't made any adjustments to tests yet so I know those need to be updated. |
|
Closing this one in favor of: #5251 |
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