Update aosp/master llvm for rebase to r233350

Change-Id: I07d935f8793ee8ec6b7da003f6483046594bca49

1 files changed, 33 insertions, 0 deletions

diff --git a/test/Transforms/LoopUnroll/AArch64/runtime-loop.ll b/test/Transforms/LoopUnroll/AArch64/runtime-loop.ll
new file mode 100644
index 0000000..d3dc081
--- /dev/null
+++ b/test/Transforms/LoopUnroll/AArch64/runtime-loop.ll
@@ -0,0 +1,33 @@
+; RUN: opt < %s -S -loop-unroll -mtriple aarch64 -mcpu=cortex-a57 | FileCheck %s
+
+; Tests for unrolling loops with run-time trip counts
+
+; CHECK:  %xtraiter = and i32 %n
+; CHECK:  %lcmp.mod = icmp ne i32 %xtraiter, 0
+; CHECK:  br i1 %lcmp.mod, label %for.body.prol, label %for.body.preheader.split
+
+; CHECK:  for.body.prol:
+; CHECK:  for.body:
+
+define i32 @test(i32* nocapture %a, i32 %n) nounwind uwtable readonly {
+entry:
+  %cmp1 = icmp eq i32 %n, 0
+  br i1 %cmp1, label %for.end, label %for.body
+
+for.body:                                         ; preds = %for.body, %entry
+  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
+  %sum.02 = phi i32 [ %add, %for.body ], [ 0, %entry ]
+  %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
+  %0 = load i32, i32* %arrayidx, align 4
+  %add = add nsw i32 %0, %sum.02
+  %indvars.iv.next = add i64 %indvars.iv, 1
+  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
+  %exitcond = icmp eq i32 %lftr.wideiv, %n
+  br i1 %exitcond, label %for.end, label %for.body
+
+for.end:                                          ; preds = %for.body, %entry
+  %sum.0.lcssa = phi i32 [ 0, %entry ], [ %add, %for.body ]
+  ret i32 %sum.0.lcssa
+}
+
+