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authorDan Gohman <gohman@apple.com>2009-02-16 00:56:15 +0000
committerDan Gohman <gohman@apple.com>2009-02-16 00:56:15 +0000
commit74786c0f4360db7547f8a12980260b5b7a441627 (patch)
treeb6c70648223bc2e9f62a6c4f33748f7c7d05b4da /test/Transforms/IndVarSimplify/2006-03-31-NegativeStride.ll
parent926b0a27b9adf79b89042785b8496cced5a49883 (diff)
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Rename IndVarsSimplify to IndVarSimplify, to be consistent with
the name used in the code that these tests are for. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64624 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/IndVarSimplify/2006-03-31-NegativeStride.ll')
-rw-r--r--test/Transforms/IndVarSimplify/2006-03-31-NegativeStride.ll22
1 files changed, 22 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/2006-03-31-NegativeStride.ll b/test/Transforms/IndVarSimplify/2006-03-31-NegativeStride.ll
new file mode 100644
index 0000000..32abee9
--- /dev/null
+++ b/test/Transforms/IndVarSimplify/2006-03-31-NegativeStride.ll
@@ -0,0 +1,22 @@
+; PR726
+; RUN: llvm-as < %s | opt -indvars | llvm-dis | \
+; RUN: grep {ret i32 27}
+
+; Make sure to compute the right exit value based on negative strides.
+
+define i32 @test() {
+entry:
+ br label %cond_true
+
+cond_true: ; preds = %cond_true, %entry
+ %a.0.0 = phi i32 [ 10, %entry ], [ %tmp4, %cond_true ] ; <i32> [#uses=2]
+ %b.0.0 = phi i32 [ 0, %entry ], [ %tmp2, %cond_true ] ; <i32> [#uses=1]
+ %tmp2 = add i32 %b.0.0, %a.0.0 ; <i32> [#uses=2]
+ %tmp4 = add i32 %a.0.0, -1 ; <i32> [#uses=2]
+ %tmp = icmp sgt i32 %tmp4, 7 ; <i1> [#uses=1]
+ br i1 %tmp, label %cond_true, label %bb7
+
+bb7: ; preds = %cond_true
+ ret i32 %tmp2
+}
+