diff options
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/Mips/MipsFastISel.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/Target/Mips/MipsFastISel.cpp b/llvm/lib/Target/Mips/MipsFastISel.cpp index 605f78d04c3..265f6de06cb 100644 --- a/llvm/lib/Target/Mips/MipsFastISel.cpp +++ b/llvm/lib/Target/Mips/MipsFastISel.cpp @@ -1394,6 +1394,13 @@ bool MipsFastISel::emitIntZExt(MVT SrcVT, unsigned SrcReg, MVT DestVT, bool MipsFastISel::emitIntExt(MVT SrcVT, unsigned SrcReg, MVT DestVT, unsigned DestReg, bool IsZExt) { + // FastISel does not have plumbing to deal with extensions where the SrcVT or + // DestVT are odd things, so test to make sure that they are both types we can + // handle (i1/i8/i16/i32 for SrcVT and i8/i16/i32/i64 for DestVT), otherwise + // bail out to SelectionDAG. + if (((DestVT != MVT::i8) && (DestVT != MVT::i16) && (DestVT != MVT::i32)) || + ((SrcVT != MVT::i1) && (SrcVT != MVT::i8) && (SrcVT != MVT::i16))) + return false; if (IsZExt) return emitIntZExt(SrcVT, SrcReg, DestVT, DestReg); return emitIntSExt(SrcVT, SrcReg, DestVT, DestReg); |
