[llvm] r351428 - GlobalISel: Add comment to clarify G_BUILD_VECTOR

[Matt Arsenault via llvm-commits]

Author: arsenm
Date: Thu Jan 17 02:50:07 2019
New Revision: 351428

URL: http://llvm.org/viewvc/llvm-project?rev=351428&view=rev
Log:
GlobalISel: Add comment to clarify G_BUILD_VECTOR

Modified:
    llvm/trunk/include/llvm/Target/GenericOpcodes.td

Modified: llvm/trunk/include/llvm/Target/GenericOpcodes.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Target/GenericOpcodes.td?rev=351428&r1=351427&r2=351428&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Target/GenericOpcodes.td (original)
+++ llvm/trunk/include/llvm/Target/GenericOpcodes.td Thu Jan 17 02:50:07 2019
@@ -689,7 +689,9 @@ def G_MERGE_VALUES : GenericInstruction
   let hasSideEffects = 0;
 }
 
-/// Create a vector from multiple scalar registers.
+/// Create a vector from multiple scalar registers. No implicit
+/// conversion is performed (i.e. the result element type must be the
+/// same as all source operands)
 def G_BUILD_VECTOR : GenericInstruction {
   let OutOperandList = (outs type0:$dst);
   let InOperandList = (ins type1:$src0, variable_ops);