[PATCH] Improve performance of vector code on A15

[Jakob Stoklund Olesen]

On Mar 11, 2013, at 10:50 AM, Silviu Baranga <Silviu.Baranga at arm.com> wrote:

> Thanks for the review. I'm attaching a new version of the patch that
> should have all the comments addressed (unless I've missed
> something).

+  if (InsertBefore == MBB.end()) {
+    BuildMI(&MBB,
+            DL,
+            TII->get(TargetOpcode::COPY), Out)
+      .addReg(DReg, 0, Lane);
+    return Out;
+  }
+
+  BuildMI(MBB,
+          InsertBefore,
+          DL,
+          TII->get(TargetOpcode::COPY), Out)
+    .addReg(DReg, 0, Lane);

This distinction shouldn't be necessary. Did you have problems passing end() to BuildMI?

/jakob