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-rw-r--r--test/Analysis/ScalarEvolution/fold.ll8
1 files changed, 8 insertions, 0 deletions
diff --git a/test/Analysis/ScalarEvolution/fold.ll b/test/Analysis/ScalarEvolution/fold.ll
new file mode 100644
index 0000000..202ddd4
--- /dev/null
+++ b/test/Analysis/ScalarEvolution/fold.ll
@@ -0,0 +1,8 @@
+; RUN: opt -analyze -scalar-evolution %s -S | FileCheck %s
+
+define i16 @test(i8 %x) {
+ %A = zext i8 %x to i12
+ %B = sext i12 %A to i16
+; CHECK: zext i8 %x to i16
+ ret i16 %B
+}