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-rw-r--r--test/Transforms/IndVarSimplify/crash.ll36
1 files changed, 36 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/crash.ll b/test/Transforms/IndVarSimplify/crash.ll
index ab43833..516fd80 100644
--- a/test/Transforms/IndVarSimplify/crash.ll
+++ b/test/Transforms/IndVarSimplify/crash.ll
@@ -1,4 +1,5 @@
; RUN: opt -indvars %s -disable-output
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
declare i32 @putchar(i8) nounwind
@@ -17,3 +18,38 @@ define void @t2(i1* %P) nounwind {
; <label>:6 ; preds = %1
ret void
}
+
+; PR7562
+define void @fannkuch() nounwind {
+entry: ; preds = %entry
+ br label %bb12
+
+bb12: ; preds = %bb29, %entry
+ %i.1 = phi i32 [ undef, %entry ], [ %i.0, %bb29 ] ; <i32> [#uses=2]
+ %r.1 = phi i32 [ undef, %entry ], [ %r.0, %bb29 ] ; <i32> [#uses=2]
+ br i1 undef, label %bb13, label %bb24
+
+bb13: ; preds = %bb12
+ br label %bb24
+
+bb24: ; preds = %bb30, %bb13, %bb12
+ %i.2 = phi i32 [ %i.1, %bb13 ], [ %i.0, %bb30 ], [ %i.1, %bb12 ] ; <i32> [#uses=1]
+ %r.0 = phi i32 [ %r.1, %bb13 ], [ %2, %bb30 ], [ %r.1, %bb12 ] ; <i32> [#uses=3]
+ br label %bb28
+
+bb27: ; preds = %bb28
+ %0 = add nsw i32 %i.0, 1 ; <i32> [#uses=1]
+ br label %bb28
+
+bb28: ; preds = %bb27, %bb26
+ %i.0 = phi i32 [ %i.2, %bb24 ], [ %0, %bb27 ] ; <i32> [#uses=4]
+ %1 = icmp slt i32 %i.0, %r.0 ; <i1> [#uses=1]
+ br i1 %1, label %bb27, label %bb29
+
+bb29: ; preds = %bb28
+ br i1 undef, label %bb12, label %bb30
+
+bb30: ; preds = %bb29
+ %2 = add nsw i32 %r.0, 1 ; <i32> [#uses=1]
+ br label %bb24
+}