vendor/llvm/llvm-trunk-r300422

1 files changed, 30 insertions, 0 deletions

diff --git a/test/Transforms/LoopVectorize/AArch64/induction-trunc.ll b/test/Transforms/LoopVectorize/AArch64/induction-trunc.ll
new file mode 100644
index 000000000000..e8ef42562356
--- /dev/null
+++ b/test/Transforms/LoopVectorize/AArch64/induction-trunc.ll
@@ -0,0 +1,30 @@
+; RUN: opt < %s -force-vector-width=1 -force-vector-interleave=2 -loop-vectorize -S | 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: @non_primary_iv_trunc_free(
+; CHECK:       vector.body:
+; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
+; CHECK-NEXT:    [[OFFSET_IDX:%.*]] = mul i64 [[INDEX]], 5
+; CHECK-NEXT:    [[INDUCTION:%.*]] = add i64 [[OFFSET_IDX]], 0
+; CHECK-NEXT:    [[INDUCTION1:%.*]] = add i64 [[OFFSET_IDX]], 5
+; CHECK-NEXT:    [[TMP4:%.*]] = trunc i64 [[INDUCTION]] to i32
+; CHECK-NEXT:    [[TMP5:%.*]] = trunc i64 [[INDUCTION1]] to i32
+; CHECK-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], 2
+; CHECK:         br i1 {{.*}}, label %middle.block, label %vector.body
+;
+define void @non_primary_iv_trunc_free(i64 %n) {
+entry:
+  br label %for.body
+
+for.body:
+  %i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
+  %tmp0 = trunc i64 %i to i32
+  %i.next = add nuw nsw i64 %i, 5
+  %cond = icmp slt i64 %i.next, %n
+  br i1 %cond, label %for.body, label %for.end
+
+for.end:
+  ret void
+}