tree 1f9dc5e04b463b5897fa36998eaa184492119d6c
parent ede4ce2ac82a6c2d51733fa8434b5362ff0966d7
author A. Unique TensorFlower <gardener@tensorflow.org> 1574105152 -0800
committer TensorFlower Gardener <gardener@tensorflow.org> 1574106475 -0800

ConvertStandardToLLVM: replace assertion with graceful failure

The assertion was introduced in the early days of dialect conversion
infrastructure when we had the matching function separate from the rewriting
function. The infrastructure evolved to have a common matchAndRewrite function
and the separate matching function was dropped without chaning the rewriting
that became matchAndRewrite. This has led to assertion being triggered. Return
a matchFailure instead of failing an assertion on unsupported types.

Closes #230

PiperOrigin-RevId: 281113741
Change-Id: Ifccd6230c88f961f3d746dc6ab2870c64f78cd24