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-rw-r--r--test/Transforms/IndVarSimplify/iterationCount_zext_or_trunc.ll25
1 files changed, 25 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/iterationCount_zext_or_trunc.ll b/test/Transforms/IndVarSimplify/iterationCount_zext_or_trunc.ll
new file mode 100644
index 000000000000..747c781e993f
--- /dev/null
+++ b/test/Transforms/IndVarSimplify/iterationCount_zext_or_trunc.ll
@@ -0,0 +1,25 @@
+; RUN: llvm-as < %s | opt -indvars -disable-output
+
+; ModuleID = 'testcase.bc'
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
+target triple = "i686-pc-linux-gnu"
+
+define i32 @testcase(i5 zeroext %k) {
+entry:
+ br label %bb2
+
+bb: ; preds = %bb2
+ %tmp1 = add i32 %tmp2, %result ; <i32> [#uses=1]
+ %indvar_next1 = add i5 %k_0, 1 ; <i5> [#uses=1]
+ br label %bb2
+
+bb2: ; preds = %bb, %entry
+ %k_0 = phi i5 [ 0, %entry ], [ %indvar_next1, %bb ] ; <i5> [#uses=2]
+ %result = phi i32 [ 0, %entry ], [ %tmp1, %bb ] ; <i32> [#uses=2]
+ %tmp2 = zext i5 %k_0 to i32 ; <i32> [#uses=1]
+ %exitcond = icmp eq i32 %tmp2, 16 ; <i1> [#uses=1]
+ br i1 %exitcond, label %bb3, label %bb
+
+bb3: ; preds = %bb2
+ ret i32 %result
+}