1 ; This testcase makes sure that size is taken to account when alias analysis 2 ; is performed. It is not legal to delete the second load instruction because 3 ; the value computed by the first load instruction is changed by the store. 4 5 ; RUN: opt < %s -basicaa -gvn -instcombine -S | grep DONOTREMOVE 6 7 define i32 @test() { 8 %A = alloca i32 9 store i32 0, i32* %A 10 %X = load i32* %A 11 %B = bitcast i32* %A to i8* 12 %C = getelementptr i8* %B, i64 1 13 store i8 1, i8* %C ; Aliases %A 14 %Y.DONOTREMOVE = load i32* %A 15 %Z = sub i32 %X, %Y.DONOTREMOVE 16 ret i32 %Z 17 } 18 19
