Dominik Montada e5cf86f394 [GlobalISel] Fix invalid combine of unmerge(merge) with intermediate cast ... Summary: The combine for unmerge(cast(merge)) is only valid for vectors, but was missing a corresponding check. Add a check that the operands are vectors to avoid an invalid combine. Without this check, the combiner would emit incorrect code for scalars and pointers because the artifact cast (trunc/ext) only affects bits at the end of the type, while this combine assumes that the casted bits appear between meaningful bits. This also uncovered a segmentation fault in the AMDGPU InstructionSelector. The tests triggering this bug have been moved to their own file and a check for the segmentation fault has been added. Reviewers: arsenm, dsanders, aemerson, paquette, aditya_nandakumar Reviewed By: arsenm Subscribers: tpr, jvesely, wdng, nhaehnle, rovka, kerbowa, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D78191		2020-04-15 17:19:14 +02:00
..
llvm	[GlobalISel] Fix invalid combine of unmerge(merge) with intermediate cast	2020-04-15 17:19:14 +02:00
llvm-c	[ORC] Add an OrcV2 C API function for configuring TargetMachines.	2020-04-10 15:51:29 -07:00