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-rw-r--r--test/Transforms/ArgumentPromotion/byval.ll24
1 files changed, 24 insertions, 0 deletions
diff --git a/test/Transforms/ArgumentPromotion/byval.ll b/test/Transforms/ArgumentPromotion/byval.ll
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+++ b/test/Transforms/ArgumentPromotion/byval.ll
@@ -0,0 +1,24 @@
+; RUN: llvm-as < %s | opt -argpromotion -scalarrepl | llvm-dis | not grep load
+; Argpromote + scalarrepl should change this to passing the two integers by value.
+
+ %struct.ss = type { i32, i64 }
+
+define internal void @f(%struct.ss* byval %b) nounwind {
+entry:
+ %tmp = getelementptr %struct.ss* %b, i32 0, i32 0 ; <i32*> [#uses=2]
+ %tmp1 = load i32* %tmp, align 4 ; <i32> [#uses=1]
+ %tmp2 = add i32 %tmp1, 1 ; <i32> [#uses=1]
+ store i32 %tmp2, i32* %tmp, align 4
+ ret void
+}
+
+define i32 @main() nounwind {
+entry:
+ %S = alloca %struct.ss ; <%struct.ss*> [#uses=4]
+ %tmp1 = getelementptr %struct.ss* %S, i32 0, i32 0 ; <i32*> [#uses=1]
+ store i32 1, i32* %tmp1, align 8
+ %tmp4 = getelementptr %struct.ss* %S, i32 0, i32 1 ; <i64*> [#uses=1]
+ store i64 2, i64* %tmp4, align 4
+ call void @f( %struct.ss* byval %S ) nounwind
+ ret i32 0
+}