onnx.Pad with mode 'reflect' fails to compile

[giacs-epic]

What happened?

Compilation fails with error error: 'linalg.generic' op inferred input/output operand #0 has shape's dimension #3 to be greater than or equal to 4, but found 1. See full output.

If pad's mode is set to 'constant' instead, it works.

compiler_output.log

Steps to reproduce your issue

Compile repro.txt with the command:

iree-compile --iree-input-demote-i64-to-i32 --iree-hal-target-backends=llvm-cpu repro.txt -o o.vmfb

repro.txt

What component(s) does this issue relate to?

Frontends

Version information

718b4fd

Additional context

No response