Add PR number to test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112971 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/CorrelatedValuePropagation/basic.ll b/test/Transforms/CorrelatedValuePropagation/basic.ll
index b210d37f1b8dcc3d1436be40408a5e5cdab5f5c1..9a9fc0f639ded2af700e0edf66399a9213d25c41 100644 (file)
--- a/test/Transforms/CorrelatedValuePropagation/basic.ll
+++ b/test/Transforms/CorrelatedValuePropagation/basic.ll
@@ -16,6 +16,7 @@ exit:           ; preds = %0
         ret i32 10
 }
 
+; PR4420
 declare i1 @ext()
 ; CHECK: @test2
 define i1 @test2() {