[llvm] r219360 - [AVX512] Move DAG for all-zero node to X86VectorVTInfo

[Adam Nemet]

Author: anemet
Date: Wed Oct  8 18:25:31 2014
New Revision: 219360

URL: http://llvm.org/viewvc/llvm-project?rev=219360&view=rev
Log:
[AVX512] Move DAG for all-zero node to X86VectorVTInfo

No functional change.

No change in X86.td.expanded except for the appearance of the new attributes.

The new attributes will be used in the subsequent patch.

Modified:
    llvm/trunk/lib/Target/X86/X86InstrAVX512.td

Modified: llvm/trunk/lib/Target/X86/X86InstrAVX512.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrAVX512.td?rev=219360&r1=219359&r2=219360&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrAVX512.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrAVX512.td Wed Oct  8 18:25:31 2014
@@ -79,6 +79,11 @@ class X86VectorVTInfo<int NumElts, Value
   Domain ExeDomain = !if (!eq (EltTypeName, "f32"), SSEPackedSingle,
                      !if (!eq (EltTypeName, "f64"), SSEPackedDouble,
                      SSEPackedInt));
+
+  // A vector type of the same width with element type i32.  This is used to
+  // create the canonical constant zero node ImmAllZerosV.
+  ValueType i32VT = !cast<ValueType>("v" # !srl(Size, 5) # "i32");
+  dag ImmAllZerosV = (VT (bitconvert (i32VT immAllZerosV)));
 }
 
 def v64i8_info  : X86VectorVTInfo<64,  i8, VR512, "b">;
@@ -171,9 +176,7 @@ multiclass AVX512_masking_common<bits<8>
                         [(set _.RC:$dst, RHS)],
                         [(set _.RC:$dst, MaskingRHS)],
                         [(set _.RC:$dst,
-                              (vselect _.KRCWM:$mask, RHS,
-                                       (_.VT (bitconvert
-                                               (v16i32 immAllZerosV)))))],
+                              (vselect _.KRCWM:$mask, RHS, _.ImmAllZerosV))],
                         MaskingConstraint, NoItinerary, IsCommutable>;
 
 // This multiclass generates the unconditional/non-masking, the masking and