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 -aa-pipeline=basic-aa -passes=gvn,instcombine -S | FileCheck %s 6 7define i32 @test() { 8; CHECK: %Y.DONOTREMOVE = load i32, ptr %A 9; CHECK: %Z = sub i32 0, %Y.DONOTREMOVE 10 %A = alloca i32 11 store i32 0, ptr %A 12 %X = load i32, ptr %A 13 %C = getelementptr i8, ptr %A, i64 1 14 store i8 1, ptr %C ; Aliases %A 15 %Y.DONOTREMOVE = load i32, ptr %A 16 %Z = sub i32 %X, %Y.DONOTREMOVE 17 ret i32 %Z 18} 19 20