[mips][msa] Float vector constants cannot use ldi.[wd] directly. Bitcast from the appropriate integer vector type.

Fixes an instruction selection failure detected by llvm-stress.

llvm-svn: 195444

1 files changed, 3 insertions, 1 deletions

diff --git a/llvm/lib/Target/Mips/MipsSEISelLowering.cpp b/llvm/lib/Target/Mips/MipsSEISelLowering.cpp
index 27d7515c40c..c02c235eb7d 100644
--- a/llvm/lib/Target/Mips/MipsSEISelLowering.cpp
+++ b/llvm/lib/Target/Mips/MipsSEISelLowering.cpp
@@ -2210,7 +2210,9 @@ SDValue MipsSETargetLowering::lowerBUILD_VECTOR(SDValue Op,
       return SDValue();
 
     // If the value fits into a simm10 then we can use ldi.[bhwd]
-    if (SplatValue.isSignedIntN(10))
+    // However, if it isn't an integer type we will have to bitcast from an
+    // integer type first.
+    if (ResTy.isInteger() && SplatValue.isSignedIntN(10))
       return Op;
 
     EVT ViaVecTy;