1 files changed, 65 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..5b8c6ef
--- /dev/null
+++ b/contrib/llvm/lib/Target/X86/Utils/X86ShuffleDecode.h
@@ -0,0 +1,65 @@
+//===-- 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 = -1
+};
+
+void DecodeINSERTPSMask(unsigned Imm, SmallVectorImpl<int> &ShuffleMask);
+
+// <3,1> or <6,7,2,3>
+void DecodeMOVHLPSMask(unsigned NElts, SmallVectorImpl<int> &ShuffleMask);
+
+// <0,2> or <0,1,4,5>
+void DecodeMOVLHPSMask(unsigned NElts, SmallVectorImpl<int> &ShuffleMask);
+
+void DecodePSHUFMask(EVT VT, unsigned Imm, SmallVectorImpl<int> &ShuffleMask);
+
+void DecodePSHUFHWMask(unsigned Imm, SmallVectorImpl<int> &ShuffleMask);
+
+void DecodePSHUFLWMask(unsigned Imm, SmallVectorImpl<int> &ShuffleMask);
+
+/// DecodeSHUFPMask - This decodes the shuffle masks for shufp*. VT indicates
+/// the type of the vector allowing it to handle different datatypes and vector
+/// widths.
+void DecodeSHUFPMask(EVT VT, unsigned Imm, SmallVectorImpl<int> &ShuffleMask);
+
+/// DecodeUNPCKHMask - This decodes the shuffle masks for unpckhps/unpckhpd
+/// and punpckh*. VT indicates the type of the vector allowing it to handle
+/// different datatypes and vector widths.
+void DecodeUNPCKHMask(EVT VT, SmallVectorImpl<int> &ShuffleMask);
+
+/// DecodeUNPCKLMask - This decodes the shuffle masks for unpcklps/unpcklpd
+/// and punpckl*. VT indicates the type of the vector allowing it to handle
+/// different datatypes and vector widths.
+void DecodeUNPCKLMask(EVT VT, SmallVectorImpl<int> &ShuffleMask);
+
+
+void DecodeVPERM2X128Mask(EVT VT, unsigned Imm,
+                          SmallVectorImpl<int> &ShuffleMask);
+
+} // llvm namespace
+
+#endif