[ARM64] Never hoist the shift value of a shift instruction.

[oota-llvm.git] / test / Transforms / ConstantHoisting / ARM64 / large-immediate.ll

diff --git a/test/Transforms/ConstantHoisting/ARM64/large-immediate.ll b/test/Transforms/ConstantHoisting/ARM64/large-immediate.ll
index 92ad6ee70de78374dcf3626c73fde76013827f77..575be791d9b1e170b20722e76cbe23a28be44a01 100644 (file)
--- a/test/Transforms/ConstantHoisting/ARM64/large-immediate.ll
+++ b/test/Transforms/ConstantHoisting/ARM64/large-immediate.ll
@@ -16,3 +16,12 @@ define i512 @test2(i512 %a) nounwind {
   %2 = or i512 %1, 7
   ret i512 %2
 }
+
+; Check that we don't hoist the shift value of a shift instruction.
+define i512 @test3(i512 %a) nounwind {
+; CHECK-LABEL: test3
+; CHECK-NOT: %const = bitcast i512 504 to i512
+  %1 = shl i512 %a, 504
+  %2 = ashr i512 %1, 504
+  ret i512 %2
+}