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 | FileCheck %s 6 7define i32 @test() { 8; CHECK: %Y.DONOTREMOVE = load i32* %A 9; CHECK: %Z = sub i32 0, %Y.DONOTREMOVE 10 %A = alloca i32 11 store i32 0, i32* %A 12 %X = load i32* %A 13 %B = bitcast i32* %A to i8* 14 %C = getelementptr i8* %B, i64 1 15 store i8 1, i8* %C ; Aliases %A 16 %Y.DONOTREMOVE = load i32* %A 17 %Z = sub i32 %X, %Y.DONOTREMOVE 18 ret i32 %Z 19} 20 21