1 files changed, 49 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopVectorize/AArch64/no_vector_instructions.ll b/llvm/test/Transforms/LoopVectorize/AArch64/no_vector_instructions.ll
new file mode 100644
index 00000000000..247ea35ff5d
--- /dev/null
+++ b/llvm/test/Transforms/LoopVectorize/AArch64/no_vector_instructions.ll
@@ -0,0 +1,49 @@
+; REQUIRES: asserts
+; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -S -debug-only=loop-vectorize 2>&1 | FileCheck %s
+
+target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
+target triple = "aarch64--linux-gnu"
+
+; CHECK-LABEL: all_scalar
+; CHECK:       LV: Found scalar instruction: %i.next = add nuw nsw i64 %i, 2
+; CHECK:       LV: Found an estimated cost of 2 for VF 2 For instruction: %i.next = add nuw nsw i64 %i, 2
+; CHECK:       LV: Not considering vector loop of width 2 because it will not generate any vector instructions
+;
+define void @all_scalar(i64* %a, i64 %n) {
+entry:
+  br label %for.body
+
+for.body:
+  %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
+  %tmp0 = getelementptr i64, i64* %a, i64 %i
+  store i64 0, i64* %tmp0, align 1
+  %i.next = add nuw nsw i64 %i, 2
+  %cond = icmp eq i64 %i.next, %n
+  br i1 %cond, label %for.end, label %for.body
+
+for.end:
+  ret void
+}
+
+; CHECK-LABEL: PR33193
+; CHECK:       LV: Found scalar instruction: %i.next = zext i32 %j.next to i64
+; CHECK:       LV: Found an estimated cost of 0 for VF 8 For instruction: %i.next = zext i32 %j.next to i64
+; CHECK:       LV: Not considering vector loop of width 8 because it will not generate any vector instructions
+%struct.a = type { i32, i8 }
+define void @PR33193(%struct.a* %a, i64 %n) {
+entry:
+  br label %for.body
+
+for.body:
+  %i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
+  %j = phi i32 [ 0, %entry ], [ %j.next, %for.body ]
+  %tmp0 = getelementptr inbounds %struct.a, %struct.a* %a, i64 %i, i32 1
+  store i8 0, i8* %tmp0, align 4
+  %j.next = add i32 %j, 1
+  %i.next = zext i32 %j.next to i64
+  %cond = icmp ugt i64 %n, %i.next
+  br i1 %cond, label %for.body, label %for.end
+
+for.end:
+  ret void
+}