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add a test to ensure that argpromote of one argument doesn't 

break the byval attr on some other argument.

llvm-svn: 46025
This commit is contained in:
Chris Lattner 2008-01-15 22:38:12 +00:00
parent 06cbb65cb0
commit f3e1155c41
1 changed files with 26 additions and 0 deletions
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26
llvm/test/Transforms/ArgumentPromotion/byval-2.ll Normal file
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; 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
}