1 files changed, 107 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/X86/Utils/X86ShuffleDecode.h b/contrib/llvm/lib/Target/X86/Utils/X86ShuffleDecode.h
new file mode 100644
index 0000000..58193e6
--- /dev/null
+++ b/contrib/llvm/lib/Target/X86/Utils/X86ShuffleDecode.h
@@ -0,0 +1,107 @@
+//===-- X86ShuffleDecode.h - X86 shuffle decode logic -----------*-C++-*---===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Define several functions to decode x86 specific shuffle semantics into a
+// generic vector mask.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef X86_SHUFFLE_DECODE_H
+#define X86_SHUFFLE_DECODE_H
+
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/CodeGen/ValueTypes.h"
+
+//===----------------------------------------------------------------------===//
+//  Vector Mask Decoding
+//===----------------------------------------------------------------------===//
+
+namespace llvm {
+enum {
+  SM_SentinelZero = ~0U
+};
+
+void DecodeINSERTPSMask(unsigned Imm, SmallVectorImpl<unsigned> &ShuffleMask);
+
+// <3,1> or <6,7,2,3>
+void DecodeMOVHLPSMask(unsigned NElts,
+                       SmallVectorImpl<unsigned> &ShuffleMask);
+
+// <0,2> or <0,1,4,5>
+void DecodeMOVLHPSMask(unsigned NElts,
+                       SmallVectorImpl<unsigned> &ShuffleMask);
+
+void DecodePSHUFMask(unsigned NElts, unsigned Imm,
+                     SmallVectorImpl<unsigned> &ShuffleMask);
+
+void DecodePSHUFHWMask(unsigned Imm,
+                       SmallVectorImpl<unsigned> &ShuffleMask);
+
+void DecodePSHUFLWMask(unsigned Imm,
+                       SmallVectorImpl<unsigned> &ShuffleMask);
+
+void DecodePUNPCKLBWMask(unsigned NElts,
+                         SmallVectorImpl<unsigned> &ShuffleMask);
+
+void DecodePUNPCKLWDMask(unsigned NElts,
+                         SmallVectorImpl<unsigned> &ShuffleMask);
+
+void DecodePUNPCKLDQMask(unsigned NElts,
+                         SmallVectorImpl<unsigned> &ShuffleMask);
+
+void DecodePUNPCKLQDQMask(unsigned NElts,
+                          SmallVectorImpl<unsigned> &ShuffleMask);
+
+void DecodePUNPCKLMask(EVT VT,
+                       SmallVectorImpl<unsigned> &ShuffleMask);
+
+void DecodePUNPCKHMask(unsigned NElts,
+                       SmallVectorImpl<unsigned> &ShuffleMask);
+
+void DecodeSHUFPSMask(unsigned NElts, unsigned Imm,
+                      SmallVectorImpl<unsigned> &ShuffleMask);
+
+void DecodeUNPCKHPMask(unsigned NElts,
+                       SmallVectorImpl<unsigned> &ShuffleMask);
+
+void DecodeUNPCKLPSMask(unsigned NElts,
+                        SmallVectorImpl<unsigned> &ShuffleMask);
+
+void DecodeUNPCKLPDMask(unsigned NElts,
+                        SmallVectorImpl<unsigned> &ShuffleMask);
+
+/// DecodeUNPCKLPMask - This decodes the shuffle masks for unpcklps/unpcklpd
+/// etc.  VT indicates the type of the vector allowing it to handle different
+/// datatypes and vector widths.
+void DecodeUNPCKLPMask(EVT VT,
+                       SmallVectorImpl<unsigned> &ShuffleMask);
+
+
+// DecodeVPERMILPSMask - Decodes VPERMILPS permutes for any 128-bit 32-bit
+// elements. For 256-bit vectors, it's considered as two 128 lanes, the
+// referenced elements can't cross lanes and the mask of the first lane must
+// be the same of the second.
+void DecodeVPERMILPSMask(unsigned NElts, unsigned Imm,
+                        SmallVectorImpl<unsigned> &ShuffleMask);
+
+// DecodeVPERMILPDMask - Decodes VPERMILPD permutes for any 128-bit 64-bit
+// elements. For 256-bit vectors, it's considered as two 128 lanes, the
+// referenced elements can't cross lanes but the mask of the first lane can
+// be the different of the second (not like VPERMILPS).
+void DecodeVPERMILPDMask(unsigned NElts, unsigned Imm,
+                        SmallVectorImpl<unsigned> &ShuffleMask);
+
+void DecodeVPERM2F128Mask(unsigned Imm,
+                          SmallVectorImpl<unsigned> &ShuffleMask);
+void DecodeVPERM2F128Mask(EVT VT, unsigned Imm,
+                          SmallVectorImpl<unsigned> &ShuffleMask);
+
+} // llvm namespace
+
+#endif