[SYCL] Enable memcpy in libdevice #3879
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Signed-off-by: gejin <[email protected]>
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Signed-off-by: gejin <[email protected]>
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/suumary:run |
Signed-off-by: gejin <[email protected]>
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Signed-off-by: gejin <[email protected]>
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@AGindinson, @mdtoguchi, ping. |
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Hi, @bader and @romanovvlad |
No, it cannot be. |
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This was referenced Jul 8, 2021
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This reverts commit 76051cc.
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Signed-off-by: gejin [email protected]
Currently, memcpy is supported in SYCL device code if "-fno-builtin" is not added. Compiler will convert it to "llvm.memcpy..." intrinsic and llvm-spirv will convert it to OpCopyMemorySized for jit.
However, if "-fno-builtin" is added, compiler will call libc function "memcpy" directly and it requires libdevice support. This PR support memcpy in libdevice, so developers can use it in SYCL device code no matter whether "-fno-builtin" is added or not.