1 files changed, 23 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopVectorize/X86/uniformshift.ll b/llvm/test/Transforms/LoopVectorize/X86/uniformshift.ll
new file mode 100644
index 00000000000..dc23ea8efdf
--- /dev/null
+++ b/llvm/test/Transforms/LoopVectorize/X86/uniformshift.ll
@@ -0,0 +1,23 @@
+; RUN: opt -mtriple=x86_64-apple-darwin -mattr=+sse2 -loop-vectorize -debug-only=loop-vectorize -S < %s 2>&1 | FileCheck %s
+; REQUIRES: asserts
+
+; CHECK: "foo"
+; CHECK: LV: Found an estimated cost of 1 for VF 4 For instruction:   %shift = ashr i32 %val, %k
+define void @foo(i32* nocapture %p, i32 %k) local_unnamed_addr #0 {
+entry:  
+  br label %body
+
+body:
+  %i = phi i64 [ 0, %entry ], [ %next, %body ]
+  %ptr = getelementptr inbounds i32, i32* %p, i64 %i
+  %val = load i32, i32* %ptr, align 4
+  %shift = ashr i32 %val, %k
+  store i32 %shift, i32* %ptr, align 4
+  %next = add nuw nsw i64 %i, 1
+  %cmp = icmp eq i64 %next, 16
+  br i1 %cmp, label %exit, label %body
+
+exit:
+  ret void
+
+}