1 files changed, 68 insertions, 0 deletions
diff --git a/test/CodeGen/Hexagon/hwloop-loop1.ll b/test/CodeGen/Hexagon/hwloop-loop1.ll
new file mode 100644
index 0000000000000..8b02736e03747
--- /dev/null
+++ b/test/CodeGen/Hexagon/hwloop-loop1.ll
@@ -0,0 +1,68 @@
+; RUN: llc -march=hexagon -mcpu=hexagonv5 < %s | FileCheck %s
+;
+; Generate loop1 instruction for double loop sequence.
+
+; CHECK: loop0(.LBB{{.}}_{{.}}, #100)
+; CHECK: endloop0
+; CHECK: loop1(.LBB{{.}}_{{.}}, #100)
+; CHECK: loop0(.LBB{{.}}_{{.}}, #100)
+; CHECK: endloop0
+; CHECK: endloop1
+
+define i32 @main() #0 {
+entry:
+  %array = alloca [100 x i32], align 8
+  %doublearray = alloca [100 x [100 x i32]], align 8
+  %0 = bitcast [100 x i32]* %array to i8*
+  call void @llvm.lifetime.start(i64 400, i8* %0) #1
+  %1 = bitcast [100 x [100 x i32]]* %doublearray to i8*
+  call void @llvm.lifetime.start(i64 40000, i8* %1) #1
+  %arrayidx1 = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* %doublearray, i32 0, i32 10, i32 10
+  %arrayidx2.gep = getelementptr [100 x i32], [100 x i32]* %array, i32 0, i32 0
+  br label %for.body
+
+for.body:
+  %2 = phi i32 [ undef, %entry ], [ %.pre, %for.body.for.body_crit_edge ]
+  %sum.031 = phi i32 [ undef, %entry ], [ %add, %for.body.for.body_crit_edge ]
+  %arrayidx2.phi = phi i32* [ %arrayidx2.gep, %entry ], [ %arrayidx2.inc, %for.body.for.body_crit_edge ]
+  %i.030 = phi i32 [ 1, %entry ], [ %phitmp, %for.body.for.body_crit_edge ]
+  %add = add nsw i32 %2, %sum.031
+  %exitcond33 = icmp eq i32 %i.030, 100
+  %arrayidx2.inc = getelementptr i32, i32* %arrayidx2.phi, i32 1
+  br i1 %exitcond33, label %for.cond7.preheader.preheader, label %for.body.for.body_crit_edge
+
+for.cond7.preheader.preheader:
+  br label %for.cond7.preheader
+
+for.body.for.body_crit_edge:
+  %.pre = load i32, i32* %arrayidx2.inc, align 4
+  %phitmp = add i32 %i.030, 1
+  br label %for.body
+
+for.cond7.preheader:
+  %i.129 = phi i32 [ %inc16, %for.inc15 ], [ 0, %for.cond7.preheader.preheader ]
+  br label %for.body9
+
+for.body9:
+  %j.028 = phi i32 [ 0, %for.cond7.preheader ], [ %inc13, %for.body9 ]
+  %arrayidx11 = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* %doublearray, i32 0, i32 %i.129, i32 %j.028
+  store i32 %add, i32* %arrayidx11, align 4
+  %inc13 = add nsw i32 %j.028, 1
+  %exitcond = icmp eq i32 %inc13, 100
+  br i1 %exitcond, label %for.inc15, label %for.body9
+
+for.inc15:
+  %inc16 = add nsw i32 %i.129, 1
+  %exitcond32 = icmp eq i32 %inc16, 100
+  br i1 %exitcond32, label %for.end17, label %for.cond7.preheader
+
+for.end17:
+  %3 = load i32, i32* %arrayidx1, align 8
+  call void @llvm.lifetime.end(i64 40000, i8* %1) #1
+  call void @llvm.lifetime.end(i64 400, i8* %0) #1
+  ret i32 %3
+}
+
+declare void @llvm.lifetime.start(i64, i8* nocapture) #1
+
+declare void @llvm.lifetime.end(i64, i8* nocapture) #1