1; RUN: opt -S -passes=instsimplify < %s | FileCheck %s 2; RUN: verify-uselistorder %s 3; PR18319 4 5define <4 x i16> @function() { 6 %s = select <4 x i1> <i1 undef, i1 undef, i1 false, i1 true>, <4 x i16> <i16 undef, i16 2, i16 3, i16 4>, <4 x i16> <i16 -1, i16 -2, i16 -3, i16 -4> 7; CHECK: <i16 undef, i16 -2, i16 -3, i16 4> 8 ret <4 x i16> %s 9} 10