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-rw-r--r--lib/Target/README.txt11
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/Target/README.txt b/lib/Target/README.txt
index c9561660b1..ec5c412765 100644
--- a/lib/Target/README.txt
+++ b/lib/Target/README.txt
@@ -2065,3 +2065,14 @@ entry:
}
//===---------------------------------------------------------------------===//
+
+This compare could fold to false:
+
+define i1 @g(i32 a) nounwind readnone {
+ %add = shl i32 %a, 1
+ %mul = shl i32 %a, 1
+ %cmp = icmp ugt i32 %add, %mul
+ ret i1 %cmp
+}
+
+//===---------------------------------------------------------------------===//