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-rw-r--r--test/Transforms/FunctionAttrs/2008-12-31-NoCapture.ll34
1 files changed, 34 insertions, 0 deletions
diff --git a/test/Transforms/FunctionAttrs/2008-12-31-NoCapture.ll b/test/Transforms/FunctionAttrs/2008-12-31-NoCapture.ll
new file mode 100644
index 0000000000..6d2ca1e446
--- /dev/null
+++ b/test/Transforms/FunctionAttrs/2008-12-31-NoCapture.ll
@@ -0,0 +1,34 @@
+; RUN: llvm-as < %s | opt -functionattrs | llvm-dis | not grep {@c.*nocapture}
+; RUN: llvm-as < %s | opt -functionattrs | llvm-dis | grep nocapture | count 3
+@g = global i32* null ; <i32**> [#uses=1]
+
+define i32* @c1(i32* %p) {
+ ret i32* %p
+}
+
+define void @c2(i32* %p) {
+ store i32* %p, i32** @g
+ ret void
+}
+
+define void @c3(i32* %p) {
+ call void @c2(i32* %p)
+ ret void
+}
+
+define i32 @nc1(i32* %p) {
+ %tmp = bitcast i32* %p to i32* ; <i32*> [#uses=2]
+ %val = load i32* %tmp ; <i32> [#uses=1]
+ store i32 0, i32* %tmp
+ ret i32 %val
+}
+
+define void @nc2(i32* %p) {
+ %1 = call i32 @nc1(i32* %p) ; <i32> [#uses=0]
+ ret void
+}
+
+define void @nc3(void ()* %f) {
+ call void %f()
+ ret void
+}