[PATCH] D25017: [mips][msa] Range check MSA intrinsics with immediates

[Simon Dardis via cfe-commits]

sdardis created this revision.
sdardis added reviewers: vkalintiris, zoran.jovanovic.
sdardis added a subscriber: cfe-commits.
Herald added a subscriber: sdardis.

This patch teaches clang to range check immediates for MIPS MSA instrincs. This
checking is done strictly in comparison to some existing GCC implementations.
E.g. __msa_andvi_b(var, 257) does not result in andvi $wX, 1. Similarily
__msa_ldi_b takes a range of -128 to 127.

As part of this effort, correct the existing MSA test as it has both illegal types and
immediates.

https://reviews.llvm.org/D25017

Files:
  lib/Sema/SemaChecking.cpp
  test/CodeGen/builtins-mips-msa-error.c
  test/CodeGen/builtins-mips-msa.c

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