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-rw-r--r--test/Transforms/LICM/2007-10-01-PromoteSafeValue.ll21
1 files changed, 21 insertions, 0 deletions
diff --git a/test/Transforms/LICM/2007-10-01-PromoteSafeValue.ll b/test/Transforms/LICM/2007-10-01-PromoteSafeValue.ll
new file mode 100644
index 0000000..7359cc0
--- /dev/null
+++ b/test/Transforms/LICM/2007-10-01-PromoteSafeValue.ll
@@ -0,0 +1,21 @@
+; RUN: llvm-as < %s | opt -licm | llvm-dis | grep promoted
+; Promote value if at least one use is safe
+
+
+define i32 @f2(i32* %p, i8* %q) {
+entry:
+ br label %loop.head
+
+loop.head: ; preds = %cond.true, %entry
+ store i32 20, i32* %p
+ %tmp3.i = icmp eq i8* null, %q ; <i1> [#uses=1]
+ br i1 %tmp3.i, label %exit, label %cond.true
+
+cond.true: ; preds = %loop.head
+ store i32 40, i32* %p
+ br label %loop.head
+
+exit: ; preds = %loop.head
+ ret i32 0
+}
+