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authorDevang Patel <dpatel@apple.com>2008-09-18 23:45:14 +0000
committerDevang Patel <dpatel@apple.com>2008-09-18 23:45:14 +0000
commit4fe0fe8b493437e91f8510b81462ff39f0d889ca (patch)
tree571eb6490d6d3d750ffbb2c278c3a99331a9c1c3 /test/Transforms
parent3589308f37177f28257dd1a39dc6d6395a435acb (diff)
splitLoop does not handle split condition EQ.
Fixes PR 2805 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56321 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
-rw-r--r--test/Transforms/LoopIndexSplit/2008-09-20-Crash.ll38
1 files changed, 38 insertions, 0 deletions
diff --git a/test/Transforms/LoopIndexSplit/2008-09-20-Crash.ll b/test/Transforms/LoopIndexSplit/2008-09-20-Crash.ll
new file mode 100644
index 0000000000..f66edcd062
--- /dev/null
+++ b/test/Transforms/LoopIndexSplit/2008-09-20-Crash.ll
@@ -0,0 +1,38 @@
+; RUN: llvm-as < %s | opt -loop-index-split -disable-output
+; PR 2805
+@g_330 = common global i32 0 ; <i32*> [#uses=1]
+
+define i32 @func_45(i32 %p_47) nounwind {
+entry:
+ br label %bb
+
+bb: ; preds = %bb3, %entry
+ %p_47_addr.0.reg2mem.0 = phi i32 [ 0, %entry ], [ %2, %bb3 ] ; <i32> [#uses=2]
+ %0 = icmp eq i32 %p_47_addr.0.reg2mem.0, 0 ; <i1> [#uses=1]
+ br i1 %0, label %bb2, label %bb1
+
+bb1: ; preds = %bb
+ %1 = tail call i32 (...)* @func_70( i32 1 ) nounwind ; <i32> [#uses=0]
+ br label %bb3
+
+bb2: ; preds = %bb
+ store i32 1, i32* @g_330, align 4
+ br label %bb3
+
+bb3: ; preds = %bb2, %bb1
+ %2 = add i32 %p_47_addr.0.reg2mem.0, 1 ; <i32> [#uses=3]
+ %3 = icmp ult i32 %2, 22 ; <i1> [#uses=1]
+ br i1 %3, label %bb, label %bb6
+
+bb6: ; preds = %bb3
+ %.lcssa = phi i32 [ %2, %bb3 ] ; <i32> [#uses=1]
+ %4 = tail call i32 (...)* @func_95( i32 %.lcssa ) nounwind ; <i32> [#uses=1]
+ %5 = tail call i32 (...)* @func_56( i32 %4 ) nounwind ; <i32> [#uses=0]
+ ret i32 undef
+}
+
+declare i32 @func_70(...)
+
+declare i32 @func_95(...)
+
+declare i32 @func_56(...)