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Properly handle unaligned refs in VM ABI marshaling. #20671
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iree_vm_ref_* functions have been updated to handle unaligned ref pointers. The changes do not significantly change the code and allow for the ABI marshaling to remain simple. Tests were added to verify the ABI size calculations match expectations. A bug was fixed in padding of i64/f64 argument registers on external calls both in the compiler and runtime. Fixes #20663.
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@benvanik , i am unfamiliar with this code and would need a video chat to bring me up to speed if i'm going to do a review here. |
benvanik
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Apr 30, 2025
compiler/src/iree/compiler/Dialect/VM/Analysis/RegisterAllocation.cpp
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ScottTodd
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Apr 30, 2025
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Thanks! I see the discussion on #20663 about getting CI coverage for "RISC-V 64-bit without support for unaligned loads". That would be great.
nirvedhmeshram
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May 6, 2025
`iree_vm_ref_*` functions have been updated to handle unaligned ref pointers. The changes do not significantly change the code and allow for the ABI marshaling to remain simple. Tests were added to verify the ABI size calculations match expectations. A bug was fixed in padding of i64/f64 argument registers on external calls both in the compiler and runtime. Fixes #20663.
KyleHerndon
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May 7, 2025
`iree_vm_ref_*` functions have been updated to handle unaligned ref pointers. The changes do not significantly change the code and allow for the ABI marshaling to remain simple. Tests were added to verify the ABI size calculations match expectations. A bug was fixed in padding of i64/f64 argument registers on external calls both in the compiler and runtime. Fixes iree-org#20663.
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iree_vm_ref_*
functions have been updated to handle unaligned ref pointers. The changes do not significantly change the code and allow for the ABI marshaling to remain simple.Tests were added to verify the ABI size calculations match expectations.
A bug was fixed in padding of i64/f64 argument registers on external calls both in the compiler and runtime.
Fixes #20663.