[mips][msa] Added bnz.df, bnz.v, bz.df, and bz.v

These intrinsics are legalized to V(ALL|ANY)_(NON)?ZERO nodes,
are matched as SN?Z_[BHWDV]_PSEUDO pseudo's, and emitted as
a branch/mov sequence to evaluate to 0 or 1.

Note: The resulting code is sub-optimal since it doesnt seem to be possible
to feed the result of an intrinsic directly into a brcond. At the moment
it uses (SETCC (VALL_ZERO $ws), 0, SETEQ) and similar which unnecessarily
evaluates the boolean twice.

llvm-svn: 189478

1 files changed, 5 insertions, 0 deletions

diff --git a/llvm/lib/Target/Mips/MipsMSAInstrFormats.td b/llvm/lib/Target/Mips/MipsMSAInstrFormats.td
index f337f9d8fff..b0116747192 100644
--- a/llvm/lib/Target/Mips/MipsMSAInstrFormats.td
+++ b/llvm/lib/Target/Mips/MipsMSAInstrFormats.td
@@ -119,3 +119,8 @@ class MSA_VEC_FMT<bits<5> major, bits<6> minor>: MSAInst {
   let Inst{25-21} = major;
   let Inst{5-0} = minor;
 }
+
+class MSA_VECS10_FMT<bits<5> major, bits<6> minor>: MSAInst {
+  let Inst{25-21} = major;
+  let Inst{5-0} = minor;
+}