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new testcase globalopt should handle.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20351 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-02-27 18:48:19 +00:00
parent 5926ca209e
commit b503cc4363
1 changed files with 21 additions and 0 deletions
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21
test/Transforms/GlobalOpt/memset.ll Normal file
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; RUN: llvm-as < %s | opt -globalopt | llvm-dis | not grep internal
; both globals are write only, delete them.
%G0 = internal global [58 x sbyte] c"asdlfkajsdlfkajsd;lfkajds;lfkjasd;flkajsd;lkfja;sdlkfjasd\00"
%G1 = internal global [4 x int] [ int 1, int 2, int 3, int 4]
implementation ; Functions:
declare void %llvm.memcpy(sbyte*, sbyte*, uint, uint)
declare void %llvm.memset(sbyte*, ubyte, uint, uint)
void %foo() {
%Blah = alloca [58 x sbyte] ; <[58 x sbyte]*> [#uses=2]
%tmp3 = cast [58 x sbyte]* %Blah to sbyte*
call void %llvm.memcpy( sbyte* cast ([4 x int]* %G1 to sbyte*), sbyte* %tmp3, uint 16, uint 1)
call void %llvm.memset( sbyte* getelementptr ([58 x sbyte]* %G0, int 0, int 0), ubyte 17, uint 58, uint 1)
ret void
}