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llvm-6502/test/Transforms/GlobalOpt/memset.ll
2008-03-01 09:15:35 +00:00

22 lines
851 B
LLVM

; both globals are write only, delete them.
; RUN: llvm-as < %s | opt -globalopt | llvm-dis | \
; RUN: not grep internal
@G0 = internal global [58 x i8] c"asdlfkajsdlfkajsd;lfkajds;lfkjasd;flkajsd;lkfja;sdlkfjasd\00" ; <[58 x i8]*> [#uses=1]
@G1 = internal global [4 x i32] [ i32 1, i32 2, i32 3, i32 4 ] ; <[4 x i32]*> [#uses=1]
declare void @llvm.memcpy.i32(i8*, i8*, i32, i32)
declare void @llvm.memset.i32(i8*, i8, i32, i32)
define void @foo() {
%Blah = alloca [58 x i8] ; <[58 x i8]*> [#uses=1]
%tmp3 = bitcast [58 x i8]* %Blah to i8* ; <i8*> [#uses=1]
call void @llvm.memcpy.i32( i8* bitcast ([4 x i32]* @G1 to i8*), i8* %tmp3, i32 16, i32 1 )
call void @llvm.memset.i32( i8* getelementptr ([58 x i8]* @G0, i32 0, i32 0), i8 17, i32 58, i32 1 )
ret void
}