Author: lattner
Date: Tue Jan 15 16:38:12 2008
New Revision: 46025
URL: http://llvm.org/viewvc/llvm-project?rev=46025&view=rev
Log:
add a test to ensure that argpromote of one argument doesn't
break the byval attr on some other argument.
Added:
llvm/trunk/test/Transforms/ArgumentPromotion/byval-2.ll
Added: llvm/trunk/test/Transforms/ArgumentPromotion/byval-2.ll
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/ArgumentPromotion/byval-2.ll?rev=46025&view=auto
==============================================================================
--- llvm/trunk/test/Transforms/ArgumentPromotion/byval-2.ll (added)
+++ llvm/trunk/test/Transforms/ArgumentPromotion/byval-2.ll Tue Jan 15 16:38:12
2008
@@ -0,0 +1,26 @@
+; RUN: llvm-as < %s | opt -argpromotion | llvm-dis | grep -F {i32* byval} |
count 2
+; 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, i32* byval %X) nounwind {
+entry:
+ %tmp = getelementptr %struct.ss* %b, i32 0, i32 0
+ %tmp1 = load i32* %tmp, align 4
+ %tmp2 = add i32 %tmp1, 1
+ store i32 %tmp2, i32* %tmp, align 4
+
+ store i32 0, i32* %X
+ ret void
+}
+
+define i32 @test(i32* %X) {
+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, i32* byval %X)
+ ret i32 0
+}
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