I'm starting to commit KNL backend. I'll push patches one-by-one. This patch includes support for the extended register set XMM16-31, YMM16-31, ZMM0-31.

The full ISA you can see here: http://software.intel.com/en-us/intel-isa-extensions

llvm-svn: 187030

1 files changed, 14 insertions, 1 deletions

diff --git a/llvm/lib/Target/X86/X86Subtarget.h b/llvm/lib/Target/X86/X86Subtarget.h
index 01a28d0fd1d..87932388703 100644
--- a/llvm/lib/Target/X86/X86Subtarget.h
+++ b/llvm/lib/Target/X86/X86Subtarget.h
@@ -42,7 +42,7 @@ enum Style {
 class X86Subtarget : public X86GenSubtargetInfo {
 protected:
   enum X86SSEEnum {
-    NoMMXSSE, MMX, SSE1, SSE2, SSE3, SSSE3, SSE41, SSE42, AVX, AVX2
+    NoMMXSSE, MMX, SSE1, SSE2, SSE3, SSSE3, SSE41, SSE42, AVX, AVX2, AVX512
   };
 
   enum X863DNowEnum {
@@ -169,6 +169,15 @@ protected:
   ///             address generation (AG) time.
   bool LEAUsesAG;
 
+  /// Processor has AVX-512 PreFetch Instructions
+  bool HasPFI;
+  
+  /// Processor has AVX-512 Exponential and Reciprocal Instructions
+  bool HasERI;
+  
+  /// Processor has AVX-512 Conflict Detection Instructions
+  bool HasCDI;
+  
   /// stackAlignment - The minimum alignment known to hold of the stack frame on
   /// entry to the function and which must be maintained by every function.
   unsigned stackAlignment;
@@ -249,6 +258,7 @@ public:
   bool hasSSE42() const { return X86SSELevel >= SSE42; }
   bool hasAVX() const { return X86SSELevel >= AVX; }
   bool hasAVX2() const { return X86SSELevel >= AVX2; }
+  bool hasAVX512() const { return X86SSELevel >= AVX512; }
   bool hasFp256() const { return hasAVX(); }
   bool hasInt256() const { return hasAVX2(); }
   bool hasSSE4A() const { return HasSSE4A; }
@@ -282,6 +292,9 @@ public:
   bool padShortFunctions() const { return PadShortFunctions; }
   bool callRegIndirect() const { return CallRegIndirect; }
   bool LEAusesAG() const { return LEAUsesAG; }
+  bool hasCDI() const { return HasCDI; }
+  bool hasPFI() const { return HasPFI; }
+  bool hasERI() const { return HasERI; }
 
   bool isAtom() const { return X86ProcFamily == IntelAtom; }