Add a testcase for a bug fixed by r75634.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75644 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/IndVarSimplify/loop_evaluate11.ll b/test/Transforms/IndVarSimplify/loop_evaluate11.ll
new file mode 100644 (file)
index 0000000..71bd5a7
--- /dev/null
+++ b/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
+}