Amara Emerson 5ec146046c [GlobalISel] Restrict G_MERGE_VALUES capability and replace with new opcodes. ...

This patch restricts the capability of G_MERGE_VALUES, and uses the new
G_BUILD_VECTOR and G_CONCAT_VECTORS opcodes instead in the appropriate places.

This patch also includes AArch64 support for selecting G_BUILD_VECTOR of <4 x s32>
and <2 x s64> vectors.

Differential Revisions: https://reviews.llvm.org/D53629

llvm-svn: 348788

2018-12-10 18:44:58 +00:00

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