Add a testcase for a bug fixed by r75634.

llvm-svn: 75644

1 files changed, 36 insertions, 0 deletions

diff --git a/llvm/test/Transforms/IndVarSimplify/loop_evaluate11.ll b/llvm/test/Transforms/IndVarSimplify/loop_evaluate11.ll
new file mode 100644
index 00000000000..71bd5a7cc68
--- /dev/null
+++ b/llvm/test/Transforms/IndVarSimplify/loop_evaluate11.ll
@@ -0,0 +1,36 @@
+; RUN: llvm-as < %s | opt -domfrontier -indvars -loop-deletion
+
+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-f80:128:128"
+
+define void @slap_sl_mem_create() nounwind {
+entry:
+	br label %bb15
+
+bb15:		; preds = %bb15, %entry
+	%order_end.0 = phi i32 [ 0, %entry ], [ %tmp, %bb15 ]		; <i32> [#uses=1]
+	%tmp = add i32 %order_end.0, 1		; <i32> [#uses=2]
+	br i1 undef, label %bb17, label %bb15
+
+bb17:		; preds = %bb17, %bb15
+	%order_start.0 = phi i32 [ %tmp1, %bb17 ], [ 0, %bb15 ]		; <i32> [#uses=2]
+	%tmp1 = add i32 %order_start.0, 1		; <i32> [#uses=2]
+	%tmp2 = icmp eq i32 undef, 0		; <i1> [#uses=1]
+	br i1 %tmp2, label %bb18, label %bb17
+
+bb18:		; preds = %bb17
+	%tmp3 = sub i32 %tmp, %tmp1		; <i32> [#uses=0]
+	br label %bb59
+
+bb51:		; preds = %bb59
+	%tmp4 = add i32 %order_start.0, 2		; <i32> [#uses=1]
+	%tmp5 = add i32 %tmp4, undef		; <i32> [#uses=1]
+	%tmp6 = lshr i32 undef, %tmp5		; <i32> [#uses=1]
+	%tmp7 = icmp eq i32 %tmp6, 0		; <i1> [#uses=1]
+	br i1 %tmp7, label %bb52, label %bb59
+
+bb59:		; preds = %bb51, %bb18
+	br label %bb51
+
+bb52:		; preds = %bb51
+	unreachable
+}