ARM32 vorr lowering

BUG= https://bugs.chromium.org/p/nativeclient/issues/detail?id=4076
R=stichnot@chromium.org

Review URL: https://codereview.chromium.org/1639403004 .
diff --git a/src/IceTargetLoweringARM32.cpp b/src/IceTargetLoweringARM32.cpp
index f836fe5..4b2dc98 100644
--- a/src/IceTargetLoweringARM32.cpp
+++ b/src/IceTargetLoweringARM32.cpp
@@ -2808,6 +2808,7 @@
     case InstArithmetic::Fsub:
     case InstArithmetic::Sub:
     case InstArithmetic::And:
+    case InstArithmetic::Or:
       break;
     }
   }
@@ -2968,8 +2969,13 @@
   }
   case InstArithmetic::Or: {
     Variable *Src0R = Srcs.src0R(this);
-    Operand *Src1RF = Srcs.src1RF(this);
-    _orr(T, Src0R, Src1RF);
+    if (isVectorType(DestTy)) {
+      Variable *Src1R = legalizeToReg(Src1);
+      _vorr(T, Src0R, Src1R);
+    } else {
+      Operand *Src1RF = Srcs.src1RF(this);
+      _orr(T, Src0R, Src1RF);
+    }
     _mov(Dest, T);
     return;
   }